ML20030C374
| ML20030C374 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 08/19/1981 |
| From: | Gerrets T ARKANSAS POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML20030C353 | List: |
| References | |
| NUDOCS 8108260037 | |
| Download: ML20030C374 (75) | |
Text
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AFFIDAVIT OF THOMAS F. GERRETS Parish Of Orleans
)
) ss.
State of Louisiana )
THOMAS F. GERRETS, being first duly sworn, deposes and says:
1.
I am employed by Louisiana Power & Light Company ("LP&L")
as Quality Assurance Manager for the Waterford 3 Nuclear Generating Plant, and I have been involved in the Waterford 3 project since the beginning of construction of the plant.
I have personal knowledge of l
the matters stated herein, and I make this Affidavit in support of LP&L's Motion for Summary Disposition of Joint Intervenors' Contention 22.
2.
LP&L's architect-engineer for the Waterford 3 project is Ebasco Services, Inc., which has general supervisory responsibility for cons t ruc tion, including the placement of all safety-related concrete.
Most of the concrete was actually placed by an Ebasco subcontractor, the J. A. Jones Construction Company.
Some of the specialized concrete 1
placements were performed by another subcontractor, Fegles Power Service.
At present, more than 99% of safety-related concrete construction at Waterford 3 has been completed.
3.
LP&L has implemented a rigorous Quality Assurance ("QA")
and Quality Control ("QC") program for Waterford 3 in compliance with 10 C.F.R. Part 50, Appendix B.
LP&L's QA/QC program is described in Section 1.8 of the Waterford 3 Preliminary Safety Analysis Report l
8108260037 810821 PDR ADOCK 05000382 O
and in Chapter 17 of the Waterford 3 Final Safety Analysis Report.
In addition, Ebasco independently implements its own QA/QC program, which has been generically approved by the Nuclear Regulatory Commission
("NRC").
Both concrete construction subcontractors also have detailed QA/QC programs, which have been reviewed and approved by Ebasco.
4.
The cement, aggregate, admixtures and other materials used in batching concrete for Waterford 3 are all obtained from supply sources with QA programs that have been reviewed and approved by Ebasco.
The concrete batch contractor, an affiliate of QA Corporation, performs a receiving inspection on the concrete constituent materials to ensure that the materials conform to the specification requirements established by Ebasco.
In addition, an independent testing laboratory, Peabody Testing Services, Inc., performs physical and chemical tests on the cement, aggregates and water.
A copy of the test and inspection procedure followed by Peabody Testing Services is attached hereto as Exhibit A.
5.
All concrete is batched in accordance with mix designs that meet industry standards and have been approved by Ebasco.
After batching, both Ebasco and Peabody Testing Service perform appropriate tests and inspections to ensure that the concrete has been properly mixed and is acceptable before it leaves the batch plant.
A copy of the Ebasco specification for batching concrete is attached hereto as Exhibit B.
6.
When the first concrete truck of the day reaches the placement location, and before any safety-related placement begins, Peabody Testing Services tests for air content, slump, unit weight, ambient temperature and concrete temperature.
These tests are repeated approximately every 50 cubic yards of concrete after the first batch of the day and every batch is checked for proper water / cement ratio and the number of drum revolutions on the delivery truck.
Additionally, Peabody Testing Services makes a set of four compression cylinders from the first batch of the day and every 150 cubic yards thereafter.
If a concrete placement is less than 150 cubic yards, but more than 50 cubic yards, a minimum of two sets of cylinders must be solded.
The cylinders are then tested for compressive strength at the Peabody Concrete Testing Laboratory with one cylinder being broken at 7 days of age, two at 28 days and one which is used as a spare should problems be encountered with the 28 day breaks.
Cylinders are molded, cured and broken in accordance with ASTM C-31.
7.
Before each concrete placement, the placement location is subjected to a preplacement inspection by representatives of Ebasco and the concrete subcontractor.
This inspection is designed to ensure proper preparation of the placement location for receipt of concrete, including proper surface preparation and form placement, proper placement of reinforcing steel, and adequate cleanliness.
Copies of the concrete preplacement inspection checklists are attached hereto as Exhibit C.
8.
The actual placement of concrete is performed in strict compliance with Ebasco's Detailed Specification for Concrete Placement, Curing and Finishing, a copy of which is attached hereto as Exhibit D.
The placement must also be carried out in accordance with the detailed concrete placement procedures of the concrete subcontractor.
For example, a copy of the J. A. Jones Construction Company Construction Work Procedure for Concrete Placing, Curing, Finishing and Repairs is attached hereto as Exhibit E.
All concrete placements are observed and inspected by QC inspectors of the concrete subcontractor to ensure that the concrete is properly placed and cured in accordance with the established procedures and specifications.
In addition, most of the concrete placements have been independently observed and inspected by Ebasco QC inspectors.
A copy of the concrete placement inspection checklist used at Waterford 3 is attached hereto as Exhibit F.
9.
All inspections and QA/QC functions concerning i
safety-related concrete are thoroughly documented in accordance with 10 C. F.R.
Part 50, Appendix B, and the documentation is retained by LP&L.
In addition, LP&L QA auditors per,iodically observe the work at Waterford 3 and audit the QA/QC programs of Ebasco and the concrete subcontractors to ensure that proper QA/QC proced6res are being followed.
Ebasco also independently audits the concrete subcontractors' QA/QC procedures,-ind Ebasco's QA/QC program at the Waterford 3 site is in turn audited by representatives from Ebasco's headquartern in New York.
LP&L's QA/QC program is audited by Middle 1
South Services, Inc., a subsidiary of the holding company that owns LP&L.
Finally, the NRC performs its own on-site inspections of the construction at Waterford 3 and audits of the QA/QC program.
10.
An important aspect of the Waterford 3 QA/QC program is the system of documenting, reporting and resolving problems that are identified during the process of construction.
Minor problems are documented on Discrepancy Notices and corrected, usually at the site.
Nonconformance Reports are used to document more serious problems, such as those requiring design engineering input and those r7 quiring procedural changes or other action to preclude recurrence.
Nonconformance Reports are reviewed and evaluated by Ebasco to ensure that proper corrective action is taken.
Problems that, if left uncorrected, could affect the safety of the plant within the meaning of 10 C. F.R. S 50.55(e) become the subject of Construction Deficiency Reports and are reported to the NRC within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
Thereafter, LP&L submits to the NRC a detailed analysis of the deficiency and the means l
by which it will be corrected.
After repairs or other corrective measures have been completed, the NRC pe,rforms an on-site inspection to verify the adequacy of the corrective action.
When the NRC inspection is sucessfully completed, the Construction Deficibncy Report is considered to be closed.
In general, LP&L has taken a conservative approach to reporting deficiencies to the NRC.
We have always resolved any substantial doubts in favor of reporting the problem to the NRC in a Construction Deficiency Report.
11.
During the course of construction, the placement of safety-related concrete has resulted in only four Construction Deficiency Reports.
Each deficiency was duly reported to the Nna, corrected by LP&L, and closed out through an NRC inspection.
These four Construction Deficiency Reports are summarized below:
1.
Construction Deficiency Report No. 1 Common Foundation Mat-Block 19 Placement 499S03-19 24-hour notice given to NRC on July 6, 1976 Final Report submitted to NRC on July 19, 1977 Closed out by NRC Inspection No. 77-07 2.
Construction Deficiency Report No. 2 Reactor Auxiliary Building Interior Wall SlB Placement 570S03-51B 24-hour notice given to NRC on August 18, 1976 Final Report submitted to NRC on April 11, 1977 Closed out by NRC Inspection No. 77-06 3.
Construction Deficiency Report No. 3 Common Foundation Structure Wall Placement 499S04-11A4 24-hour notice given to NRC on May 19, 1977 Final Report submitted to NRC on November 8, 1977 Closed out by NRC Inspection No. 77-15 4.
Construction Deficiency Report No.13 Reactor Containment Building Dome ~
Placement 521-1B 24-hour notice given to NRC on August 16, 1979 Final Report submitted to NRC on April 21, 1980 l
Closed out by NRC Inspection No. 80-03 4
12.
During the course of construction, the NRC made a number of unannounced visits to the Waterford 3 site to inspect the construction, including the placement of safety-related concrete.
None of the NRC inspections revealed ary significant defect in the safety-related concrete placed at Waterford 3, of such seriousness that it should have been reported to the NRC under 10 C.F.R. S50.55(e) because of its effect on safety.
All of the deficiencies concerning safety-related concrete identified in NRC inspections have been relatively minor, mostly involving problems with QA/QC procedures and documentation.
The results of the inspections dealing with safety-related concrete are detailed in NRC Inspection Report Nos.
75-05, 75-10, 76-01, 76-04, 76-06, 76-11 and 77-05.
In each case, the problem discovered has been corrected by LP&L, and the matter has been closed following a reinspection by the NRC.
13.
I am informed that Joint Intervenors' Contention 22 was l
filed as a result of an article appearing in the April 3, 1979, issue of the New Orleans States Item.
The article stated that th ree construction workers had questioned the concrete placement practices at Waterford 3.
The workers were unnamed b'ut were apparently working on the Intake Structure, which is not a safety-related structure.
I personally investigated the allegations in the newspaper article, including numerous interviews with construction workers, but I was unable to locate the three concrete workers in' question, and I was unable to discover any factual basis for the auestions they reportedly raised.
The NRC investigated the matter independently and it also was 1
i l
(
unable to find any basis for the allegations.
A copy of the NRC's inspection report is attached hereto as Exhibit G.
14.
I can state unequivocally that I know of no basis for Joint Intervenors' Contention 22.
I believe that no significant defects in safety-related concrete have gone undetected through our QA/QC program, as is demonstrated by the results of the NRC's r
independent inspections.
We have properly documented, evaluated and corrected as nec'essary, all known defects in safety-related concrete, and have fully complied with NRC regulations in reporting deficiencies to the NRC.
dW Dal$
THOMAS F. GERRETS Subscribed and sworn to before me this day of 1981.
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Page 1, 3.3-3.6 Page 2,3.7.-3.10, 4.1,4.2,5.1,6.1 HF 9-21-79 Pace 3. 6.L-6.7 Pace.4 6.9-5.11. Pace 5.6.7.16 l
Page 6,6.10.3 Page 7,6.10.6, 6.12, 6.13 0
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1.1 The purpose of this procedure is to outline the instruc tions for thosa quality control inspection and testing functions for permene(field and laboratory) ielative to concrete inspection data, and to identify the nt methods by which the concrete materials and mixes shall be tested and controlled.
2.0
_G_E N E R AL 2.1 This procedure covers the inspection and testing (fiele ar.d laboratory) of concrete for permenent pl.nt structures, the requirements for in-process inspection of. batch plant operations and the testing'and record-ing of the' test results on concrete materials which are to be used in the permanent plant structures.
2.2 The degree of testing and. inspection-by Peabody Testins 2 Services, Inc.. is limited to sampling, performance of tests, recording and reporting of test results.
Contractors performing saf ety-relat.ed work shall be responsible for inspection and documentation of that work.
2.3 Definitions of terms used in this procedure may be found in the referecnes noted in Section 3.0.
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2.4 Frequency of testing shall b'e as called out at the poi rt of referecne or as directed by the Enc'.eer.
3.0 REFERENCES
3.1 Ebas co Speci fica tion LOU-1564.472, Concrete Masonry 3.2 ANSI N45.2.5-1974, Supplementary Quality Assurance Requirements for Installation, Inspection, and Testing
'of Structural Steel.during the Construction Phase of Nuclear Power Plants.
3.3 ANSI h45.2.6-1973-Qualificati.ons of Inspection, Examination, and Testing Personnel for Construction Phase of Nuclear Power Plants.
3.4 ACI Manual of Concrete Inspe: tion 3.5 ASTM Manual of Concrete Aggregates; Concrete Testing, Part 14 3.6 Peabody Testing Services Personnei Qualification and Certification Proce' dure 33.G.5 Section III.
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TITLE PAGE FIELD AND LABORATORY INSPECTION AND TESTING OF 0:1?-6752 CONCRETE 1 of 8
PeaBidy Tes ting Services, Enc. irocedure QA6-6752-3.7 Equipment Identifica%1on and Calibration.
3.8 Peabody Testing Services, Inc. Procedu e QA13-6752-Discrepancies and Nonconformances.
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3.9 Peabody Testing Services, Inc. Procedure QA3-6752-Identification and Disposition of Material and Test Sampl es.
3.10 Peabody Tes ting Services, 'Inc. ProcedureQA7-6752-I Document Control and Storage.
4.0 PERSONNEL ~ ~0UAL IFICATI'ONS 4.1 This' test procedure shall be cdnducted by any Level I Assistant, Level I, Level-II, or Level III Technician who has been qualified in accordance with Peabody 2
Testing Service's Adminis tra tive Procedure 33.G.5-Qualification and Certification of Personnel.
All data recorded shall be checked by a Level II or a Level III Technician.
The resu.lts cann~ot be checked and approved by the same technician who performed the actual procedure.
4.2 The Level I Assistant shall be a designated Level I Technician for that Test Procedure he has been Qualified to perform Independently and function accordingly.
5.0 IOUIPMENT E.1 Calibrated equipment shall be' used in the performance of any test required by this procedure.
Calibration shall be in accordance with Peabody Testing Services, 2
t Inc. Procedure QA6-6752.
The identification of tne equipment used in the performance of any test shall be recorded on the test results form.
6.0 PROCESS-PROCEDURE 6.1 The Concrete Field Supervisor shall report to the Peabody Testing Services, Inc. Project Engineer and 2
shall be responsible for implementation of. the requirements, the inspection o,f testing, and the documenation of inspection and test results for materials and equipment, which are covered in this procedure.
6.1.1 He shall assign Concrete Field Inspectors to sample and test concrete as required.
6.1.2 He shall assign Batch Plant' Inspectors as required and monitor their activities.
G.1.3 He shall asign Concrete Laboratory Technicians 2
g3 to sample and test concrete materials as eg=
required.
PACE
' TIT L E NO.
2 of S FIELD AND LABORATORY INSPECTION AND TEST OF CONCRET QA12-675 2
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w Peab3dyTesh) y 6.1.4 H. shall be responsible for checking test results f sr acceptance.
6.1.5 He shall be responsible for assuring l
that the inspection and testing results are properly recorded.
6.2 The Concrete Field Inspectors shall report to the Concrete Field Supervisor and shall be responsible for. performances of the field inspections and test as instructed in this procedure.
6.3 The Concrete L'aboratory Technician shall report to the Concrete. Field Supervisor and shall be responsible for implementa. tion.of the procedures, the performance of laboratopy testing and reporting of test results on concrete materials as covered in this procedure.
6.4 The Batch Plant Inspector Field Supervisor and shall.shall report to the Concrete be responsible for monitoring all batch plant activities.
6.5 The Peabody Testing Services. Inc. Project Engineer 2
.shall be responsible to provide technical assistance to the Concrete Field Superv.for.
6.6 The Site Quality Assurance Manager shall be responsible
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si for maintaining qual.ity documentation, performing inter nal audits on Peabody Testing Services, Inc. personnel 2;
and procedures, and Quality Assurance prgeneral maintenance of-the site ogram.
6.7 The Concrete Field Inspector shall insure that control is mai.ntained on the consistency of the delivered concrete.
This control shall be by means of sampling and testing.
The initial concrete truck for each design mix each day from each batching plant shall be tested at the tailgat'e and no concrete shall be per-mitted to discharge into any placement until its test results are known from the initial truck and the concrete is acceptable.
Recor'd test shall also be performed on this initial truck with no concrete per-mitted to discharge from :ne test truck into the placement until the test results are known and the concrete is acceptable.
Af ter the initial truck of the day, tailgates need not be taken if the concrete is delivered continuously.
(Continuously shall be defined as having the batch plant inoperation without an interruption of more than two hours).
In the event of an admix dosage change, the first truck with the change shall be tested at the tailgate.
Until tailgate test results are known and acceptable no concrete shal' 5p bE permitted into 'eny : placement. The test res'ults shall
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NO.
TITLE FIELDANDLABORATORJn,IJg{EgTIONANDTESTINGOF 0 A 12-6 752 3 gf g 7.
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bel'.'.. corded on From No. PB05-0.'~i752, Field Concrete Inspection Data.
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This form shall be filled-in complet e-6)7.1 Ticket Number-The inspector shall record all 7
ticket numbers for any batch of concrete being s ampl ed.
6.7.2 Truck Number-The inspector shall record all truck numbers for the batch of cone. rete being s ampl ed.
6.7.3 Time. Batched-The time that the concrete being sampled was batched shall be entered here.
This' information is on the b,atch ticket.
' Time Completed Discharging-The time that the 5.7.4 truck completed discharging shall be entered.
6.7.5 Quantities-The number of yards in th'e batch bei sampled shall be recorded.
ng This information is on the batch ticket.
The cumulative number of yards for the placement shall also be recorded.
6.7.6 Drum Re.volutions @ Mixing Speed-Prior to dischars ing of concrete from truck, the number of revoit tions at mixing speed shall be recorded.
6.7J7 Total Drum Revolutions-At the start of dis-charging of concrete from truck, the number of a.
total revolutions of the drom shall be record-ed.
This number shall not exceed 300 before completion of discharge.
6.7.8 Water Added-When the amount of water in a batch of concrete is below the allowable water / cement ratio, additional water may be added to the load of concrete.
The inspector shall determine the actual amount of additional water added by others, and record this figure in gallons.
The total amount of water added shall not exceec the allowable' water / cement ratio.
After water is added, a minimum of 30 mixing rev'olutions shall be added, with total mix revolutions not to exceed 130.
6.7.9 Slump-The first batch of concrete produced each day and every 50 + 10 cubic yards placed thereafter shall Be tested for slump in acc-l ordance with ASTM-C-143.
The inspector shall record the test results.
i 6.7.10 Air Content-The first batch of concrete
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produced each day and every 50 + 10 cubic yards placed thereaf ter shall be tested for air content in accordance with ASTM-C-231.
l -jj The results of the te'sts shall be recorded.
PAGE TITL E FIELD AND LABORATORY INSPECTION AND TESTING OF gg' a of g CONCRETE QA12-6752
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pef Q Q 6.7.i1 Unit Weight-The unit weight will be determined once for each 50 + 10 cubic yards palced in accordance with ASTH-C-136.
The weight of the 2
bucket and sample shall be entered here.
The actual unit weight shall be calculated upon completion of placem'ent.
6.7.12 Ambient Tempera ture-The ambient temperature at the time cylinders are cast shall be determined and recorded.
6.7.'13 Concrete Temperature-The. temperature of the
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first batch of concrete produced each day and every 50 + 10 cubic yards placed thereaf ter shall be Betermined and reccrded.
6.7.14 Rejected-Yes-or No-The inspector shall indicate whether the load of concrete was rejected by entering Yes or No.
If yes, Section 6.2 of QA3-6752, Indentification and Disposition of Material.and Test Samples shall be followed.
6.7.15 Remarks-Indicate if there were any remarks by entering Yes or No here.
from No. PB05-01B-6752 is to used to record the reason for rejection of concrete and the approximate amount rejected.
Other statements which are pertinent to the test record shall be entered.
6.7.16 A set of four (4) compression cylinders be made from the first acceptable batch of shall concrete produced each day and every 150 cu. yds. there-after.
However,, a minimum of two sets of cylinders must be taken whenever the concrete placement is less than 150 c.y. but more than 1
50 c.y. (In accordance with ASTM-C-31).
A set of five (5) cylinders shall be made every 300 cu. ya rds.
All sets shall be numbered and this number made a part of the permenent record.
6.7.17 Particular attention shall be given to the notes on this form, No. PB05-01-6752.
The inspector shall record equipment identification numbers of testing equipment used in the appropriate blanks.
6.8 The Concrete field Inspector shall enter the following informa tion on Form No. PB05-04-6752, compressive strength of concrete cylinders.
A.
Date and Time Cast Cylinder Molded by C.
Curing Box Number D.
Quality Represented FIELD AND LABORATORY INSPECTION AND TESTING OF QA12-6752 CONCRETE 5 of 8
E. msa/lacement Number F.
Design Humber G.
Ticket Ns,mber H..
Truck Nu.nber I., Cubic Yaids in Batch 6.8.1 The remaining information shall be entered on Form No. PBC5-04-6752 Technician.
by the Concrete Labora tory 6.9 The Concrete Testing Laioratory shall report the resul ts of concrete cylinder testing on From No. PB05-04-6752, Compressive Strength of Concrete Cylinders.
Compress-ive strength specimens shall be picked up within the allowable time in accordance with ASTM-C-31.
The cylinders will be removed from the mold and the cylinde-set number shall be marked on the side of the specimen.
The specimens sha.11 be placed vertically in saturated lime water tanks for~ the remainder of the curing time.
A daily temperature log will be maintained of the temperatures in the curing tanks.
All applicable data will be recorded for v.aceability of cylinders in the
" Cylinder Log Book".
Cylindars will be tested in accordance with ASTM-C-39-72 and C-683-76.
6.10 The Concrete Laboratory Technician shall insure that control is maintained on the consistency of the concrete materials by sampling and testing.
6.10.1 Cement-The Concrete Laboratory Technician shall 53 check the temperature of each incoming shipment
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of cement and shall document this on From No.
PB02-17-6752, exceeding 170, Cement Certification.
Cement F. shall not be used.
6.10.2 One test sample for each 1200 tons of cement recieved shall be obtained and tested in ace-ordance with ASTM-C-150.
Sa'mpl es shall be taken by the Concrete Laboratory Technician.
The lab number assigned the sample, date samplec car number from wh ch sample was obtained and tests required shall be recorded in the laboratory log book and shipped to the support laboratory for testing.
6.10.3 Aggregates-The following sampling and testing shall be performed by the Concrete Laboratory Technician during concrete production using the appropriate ASTM standards, a)
Gradation (ASTM-C-136)
-once per shift b)
Organic Impurities (ASTM-C-40)
-weekly c)
Material fi n e r than #200 Sieve (ASTM-C-117) l d)
Clay Lumps and Friable
-once per shift (j~ g Particles (ASTM-C-1421 PAGE TITLE NO.
FIELO AND LAVORATORY INSPECTION AND TESTING OF 6 af 9 ennrer,-
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Qa%ISS:ng w.
' e) Specific Gravity and Absorp-tion (ASTM-C-127 cr C-128)
-weekly f) Percentage Voids (ASTM-C-30)
-weekly g)~ Lightweight Pieces (ASTM-C-123)-monthly 1.i Soft Fragments (ASTN-C-235)
-monthly i) ns Angeles Abrasion (A TM-C-131 or C-535)
-6 months j) Flat and Elongated Particies (CT.D-C-119)
-6 months k) So.indness (ASTM-C-88)
-6 months
- 1) Mo-lsture Content (ASTM,C-566) -daily, as needed 6.10'.4
.Any of the above tests shall be performed more frequently when required by the Concrete Field Supervisor, owner, Representative of owner based on job ' onditions.
These. tests are to be c
.made,during concrete production.
Results of tests run once per shift shall be reporteo on from No.
PB01-02-6752.
Resutis of tests run weekly shall be reported on From No. PB01-03-6752.
Results of tests run monthly shall be reported on Form No. PB01-04-6752.
Results of tests run every 6 months shall be reporte'd on Form No. PB01-05-6752.
Moisture Content shall be reported on Form No.
PB01-01-6752.
.a.
6.10.5 23 Water-The following tests shall be conducted to verify that the quality of water meets the re-quirements as established by specification LOU 1564.472.
A copy of this report will be obtianed for the Quality Control records.
Sampling shall be done by the Concrete Laboratory Technician.
a) Acidity & Alkilinity (AASHO T-26)
-Monthly b) Scotts Mineral Analysis (AASHO T-26)
-every three montr s c) Mohr Method Chloride (AASHO T-26
-Monthly d) Bolhard Method Chloride (AASHO T-26
-when required e) Effects on Compressive Strength i
(ASTM-C-109)
-6 months f) Effects'on Setting Time (ASTN -C-191)
-6 months g) Effects on Soundness (ASTM-C-151)
-6 months j
1 6.10.6 If ice 1.s used, samples of the ice shall be taken and tested to meet the same requirements as the i
mixing water and at the same intervals.
hM-6.11 The Satch Plant Inspector shall be responsible fer assuring NO.
TITLE PAGE FIELD AND LABORATORY INSPECTION AND TESTING OF
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kan that the weights used for each batch are w18hin the allowable m
He shall also be responsible for the comput-tolerances.
ation of per batch water /, cement ratio and computation of the maximum allowable water which can be added in the field.
(ie: concrete constituent The disp 3stion of rejected materialbe in accordance with 5.12 materials, mixed concrete), shall 2
Peabody Testing Services, Inc. Procedure QA3-6752-Identific-ation and Disposition of Materia.1 and Test Samples-Or as directed by.the Engineer.
Documentation of Deficient matefials or testing procedures 2
shall.be in accordance with Peabody Testing Services, Inc.
6.13 Procedure QA13-6752-Discrepancies and Nonconformances.
7.0 REPORTS Forms-See attac'hmsnts for applicable forms to th'is procedure
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7.1 Results Acceptability-Test results will indicate " Meets Specification Requirements'.' or "Does Not Meet Specification 7.2 Requirements", whichever applicable.
are to be filled out completely.
7.3 All forms 2
Reports will"be transmitted in accordance with Peabody Testing Services, Inc. Procedure QA7-6752-Document Control 74.
and Storag'.
e 8.0 ACCEPTANCE CRITERIA es Concrete Masonry.
i Ebasco Specification LOU-1564.472, 8.1 froms will contain applicable criteria.
8.2 Report 1
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FIELD AND LABORATORY INSPECTION AND TESTING OF QA12-5752 TITLE PAGE 8 of 8 CONCREst
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m amm Project Identification EBASCO SPECIFICATION CONCRE S MASONRY No.
LOU-1564.472 Issue Date: December 31, 197
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SECTION III CONCRETE AGGRECATE PROCESSING AND CONCRETE MIXING PI E TS CONIDTIS Paragraph Page Scope 1
1 Definitions 2
1
.1 Engineer 1
.2 ASIM Standards 1
.3 Detailed Specifications 1
4 Aggregates 1
Aggregate Processing Plant 3
1
.1 Type of Plant 2
.2 Saz::ples and Tests 2
.3 Fines in Sand 2
4 Drainage of Aggregate 2
.5 Segregation 2
.6 Volume of Storage 2
.7 Approval of Aggregate Plant I4yout 3
Concrete Flant 4
3 l
.1 Type of Plant 3
.2 Batchers 4
a - Weighing Units 4
b - Measuring Water 4
c - Dispenser for Air Entrainment 4
d - Dispenser for Admixtures 5
l e - Moisture Adjustment 5
5 l
f - Accuracy Limits 3 Mixers 5
a - Maintenance 5
b - Stationary Mixers 5
e - Mixing Time 6
d - Truck Mixers 6
4 Provision for Inspection 7
.5 Sa=pling Facilit>ies 7
.6 Concrete Specimens 7
.7 Test Weights 7
.8 Approval of Concrete Plant Layout 7
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Project Identification ESASCO SPECIFICATION CONCRETI MASONRY No.
LOU-1561. 472 SECTION III (I.[
CONCRITE AGGREGATE PROCESSING AND CONCRITE MIXING PLANTS 1.
This isSection III of a Specification covering the SCOPE geaeral and specific requirements for concrete using on-site or established commerr ial off-site concrete production facilities.
This section cosers the reWirements of aggregate pro-cessing plants and the requirements of concrete mixing plants to
' e 'ised if an on-site plant is established.
2 Definicion of ter=s used in this Specification are as DETINITIC fc11ows:
.1 Enrineer In these specifications, the word " Engineer" shall mean the person in responsible charge of the vnrk for the Owner, or his representative.
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.2 ASTM Standards l
When this Specification refers to certain " Standard c.
Specifications" or " Tentative Specifications" of the American Society for Testing and Materials, the latest revision of those specificaricas shall apply.
.3 Detailed Soecifications Where the phrase " detailed specifications" is used in this Specification, it shall be understood to refer to specifications which may be included on the construction drawings or in the Contract for the purpose of supplementing, modifying or eliminating any of the requirements of this Specification. -
4 Artregates
" Aggregate" in general designates both the fine and coarse inert materials used in the manufacture of concrete. Sand is a fine aggregate. Crushed rock, natural gravel, or crushed gravel are coarse aggregates.
3.
This Specification for " Aggregate Processing' Plant" is AGGREGATE intended to cover jobs where a plant for processing of aggregates PROCESSINC is required. No deviation from the requirements of this Specifi-PLANT cation vill be permitted without the written approval of the Engi-neer, or unless they are specifically and individually called for in the detailed specifications for a particular job..
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Project Identification EBASCO SPECIFICATION CONCRETE MASONRY No.
LOU-1564.472 Issue Date:
Dece=i:c. 31, 19-SECTION III (Cont'd) p.-
3.1 Tvne of Plant AGCREOATE PROCESS!'
Coc:plete and adequate facilities shal.1 be provided for PIRIT proper crushing, screening, washing, classifying, storing, re-(Cont'd) i claiming and delivering the aggregates to the mixing plant.
2 Samoles and Tests The aggregate plant shall be operated a sufficient time i
in advance of the date set for the first placement of concrete to permit the development of procedures which result in high capacity production of aggregates proven by test to meet all the requirements of this Specification.
3 Fines in Sand The facilities for fine aggregate production shall be so designed and operated as to retain the necessary quantity of suitable sub 50 mesh fractions. Conversely, an excess of fines will not be permitted.
4 Drainage of Aggrerate
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Aggregates shall not be removed directly from the washing or classifying operations to the aggregate bins in the concrete mixing plant, but shall be stored as required to permit drainage of excess water and shall be stored in such a manner as to avoid the inclusion of foreign materials. Sand shall remain in free-draining storage for at least 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> prior to use.
5 Serregation The storage piles for aggregates shall be constructed so as to prevent segregation, and as approved by the Engineer. Ihe deposition and removal therefrom shall be done in a man r to im-prove the uniformity of grading insofar as praticable.
The side slopes of stock-piled aggregates shall be kapt flatter than the angle of repose to prevent accumulation of coarser material at tne bottom of the slope. To reduce breakage of the
. larger sizes of coarse aggregate the number of handlings shall be
. 6duesd to a mini:: rum and rock ladders of satisfactory design shall be installed if so ordered by the Engineer.
6 volume of Storage Sufficient live storage of all size fractions of processed aggregates shall be maintained to permit continuous placing of con-crete at the rates required to meet the schedule requirements.
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Project Identification EBASCO SPECIFICATION CONCRETE MASONRY No. LOU-1564.472 Issue Date:
December 31,197 S5 m 0N III (Cont'd)
Og 3.7 Aneroval of Aggrerate Plant LavoE AGOREGATE PROCESSING Plans and specifications for the aggregate processing P U2:T plant which are proposed for use including cescription and capacity (Cont'd) data on the processing equipment and flow charts of the whole pro-cessing operations which shall show rates of flow of material at the various crushing and separation points in the processing, as well as the volumes of stockpiles and the number and kinds of equipment to be used in transporting the aggregates from the aggregate plant to the mixing plant shall be furnished to -
l the Engineer for his comments or approval before start of plant erection.
i 4
When required a modern and dependable batch-type mixing CONCRETE plart capable of producing concrete of specified quality and at the PU2 T rate of output required to meet the schedule requirements and a balanced complement of transporting, handling and* placing equipment shall be provided at a location and in a manner acceptable to the Engineer.
The concrete miring plant shall be completely installed with preliminary operation for a sufficient length of time prior E
to first scheduled concrete placement to enable the Engineer to make the necessary physical tests prior to substantiil concrete pro-cedure.
.1 Tvee of Plant The plant may be semiautomatic or automatic. " Semi-autocatic" is used to define a plant in which:
'a - Batch weights are set manually.
b - Mixes are changed manually.
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c - Materials are batched automatically.
" Automatic" is used to define a plant in which:
a - Batch weights are set manually on a mix selector.
b Mixes are changed automatically by mix selector.
c - Materials are batched automatically.
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o Project Identification EBASCO SPEC 1TICATION CONCRETE MASONRY No.
LOU.1564.472 ssue ate:
December 31, 15 SECTION III (Cont'd) 4.2 Batchers CONCRETE PLCT individual weigh batchers shall be provided for all work (Cont'd) requiring the use of more than two separate size groups of coarse aggregatas. The cement shall be weighed and batched separately fro = the aggregates.
The batchers shall be arranged to per=it the convenient addician or removal of material. Batching equipment shall be se constructed and arranged that the sequence and time of discharge can be controlled to produce a ribboning and mixing of the aggre-gates and, wherever practicable, of the cement with the. aggregates as the materials pass through the charging hopper into the mixer.
This shall be affected by the control of the batcher discharge gates. Batching controls shall be so interlocked that a new batching cycle cannot be started until all batchers are co=pletely
- empty, a - Weighing Units. - Every delivery point of aggregates and cement into the mixer charging hopper shall have a weighing unit and each weighing unit shall include l
a visible, springless, direct-reading dini which shall indicate the scale load at all stages of the weighing operation from zero to full capacity.
Insofar as practicable, the scale dials shall be in full view of the operator and the weighing equipment shall be arranged so that the operator may conven-iently observe the operation of the batcher gates and the discharge of the materials. Provision shall be made for adjustment and change in weights of materials being charged into the hopper.
b - Measuring Water - Water shall be measured by weight unless written approval is given by the Engineer to l
measure by volume. The mechanism for measuring and I
delivering water to the mixers shall not permit l
1eakage when the valves are closed.. The filling and I
discharge valves for the water tank shall be so inter-locked that the discharge valves cannot be opened befo,re the filling valve is fully closed.
c - Discenser f'r Air Entrainment - The concrete plant o
shall include a dispensing devicero accurately measure and deposit the air entraining agent into each mix.
The dispenser shall be interlocked with the batching and discharging controls of the water so that em' batching and discharge of the air entraining agent will be auto-matic. The device shall be capable of ready sdjustment to permit varying the quantity of the air entraining agent to be batched. -.. _. _ -.. - - _...- --.
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Project Idantification EBASCO SPECLTICATION CONCRETE MASONRY No.
LOU-1564.472 Issue Date:
December 31, 19; SECTION III (Cont'd)
R4: Jeauary 3,1975 4.2 (Cont'd)
CONCRETE PU::T d - Disnenser for Ad=ixtures - The concrete plant shall (Cont'd) include a dispensing device for ad=ixtures in accord-ande with the manuf acturer's reco=mendations to accur-ately measure and control the deposit of each ad=ix-ture.
e - Moisture Adjustment - The auto =a:ic controls shall be capable of ready adjustment to compensate for the varying moisture content of the aggregates.
f - Accuraev Limits - Delivery of materials from the batching equipment shall be within the following limits of accuracy:
Material Percent Cement 1 (By Weight)
Water 1 (By Weight)
Aggregate smaller than 1-1/2" size 2 (By Weight)
Aggregate large: than 1-1/2" size 3 (By Weight)
Air entraining agent 13 (By Weight or RL Volu=e)
Admixtures 3 Limitations as RL Recommended by Manufacturer 3 Mixers Mixers may be of either the tilting or non-tilting station-try type, or truck mixers, of approved de. sign.
' a - Maintenance - The mixers shall be maintained in satis-factory operating conditien, and mixer drums shall be kept free of hardened concrete. Mixer blades shall be replaced when vorn down more than 10 percent of their dep th.
Should any mixer at any time produce unsatis-factory results, leak mortar or cause waste of mater-ials, its use shall be promptly discontinued until it is repaired.
b - Stationarv Mixers - Mixer's which have s r?ted capacity of 2 cu yd, or more, of mixed concrete shall be the tilting type. Mixers shall not be charged in excess of the capacity reco= mended by the manuf acturer.
Mixers shal' ie capable of combining the materials into a uniform sixture and of discharging this mixture with-out segregation. The mixers shall be operated at the drum speed designated by the manufacturer on the name-plate..-.
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y Project Identification EEASCO SPECIFICATION CUEC2ETI MASONRY No.
LOU-1564.472 Issue Date: December 31, 197 SECTION III (Cont'd)
R1: March 15, 1972 R7: August 3, 1976 4.3 (Cont'd)
CONCRETE PLANT c - Mixine Time - The mixing periods specified herein (Cont'd) are predicated on proper control of the speed of rotation of the mixer dru=, and on proper intro-duction of the materials into the mixer.
The mixing time vill be increased when necessary to secure the required unifer=ity and consistency of the concrete.
Excessive overmixing requiring additions of water vill not be permitted.
When stationary Mxers are used, the mixing time for each batch shall be as follows: Time shall start when all solid materials are in the mixer drum, provided that all of the mixing water shall be introduced before one-fourth of the mixing time has elapsed.
Canacity of Mixer Mini =um Mixine Time 1 cu yd 1 minute 2 and 3 cu yd 2 minutes 4 cu yd 2-1/2 minutes When a stationary mixer is used for partial mixing of the concrete (shrink-mixed) the mixing time in the stationary mixer may be reduced to the minimum necessary to intermingle the ingredients.
Ocationary mixers shall be provided with an acceptable device to lock the discharge mechanism until the required mixing time has elapsed. Provision also I
shall be made to assure that each batch is discharged completely before the mixer is recharged.
l d - Truck Mixers - Truck mixers, conforming to ASIM C-94, may be used when authorized by the Engineer and the equipment and methods are approved in writing. Consrete so manufactured shall comply in every respect with the requirements of these specifications.
When. a. truck mixer is used either for complete mixing (transit-mixed) or to finish the partial mixing done in a stationary mixer, each batch of concrete shall be i
1 mixed, after the initial addition of water, not less than 50 or more than 130 revolutions of the drum at tjhe rate of rota-l l
tion designated by the manufacturer of the equipment as mixing spe ed. Any additional mixing shall be done at the soeed designati l
by the manufacturer of the equipment as agitating speed.
When necessary for proper control of the concrete, l
mixing of transit-mixed concrete shall not commence l
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roject Identification
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ERASCO SPECIFICATION CONCRETI Mt.SONRY No. LOU-1564.472 Issue Date: December 31, 1971 '
SECTION III (Cont'd) 7 E1: March 15,1972 CONORITI 4.3 (Cont'd)
PLANT i
d - (Cont'd)
(Cont'd) and the addition of water shall not be. permitted until the truck mixer is at the site of the con-crate placement.
Truck mixers shall be equipped with accurate revolution counters.
r 4 Provision for Insnection The complete plant assembly shall include provisions to facilitare the inspection of all operations at all times.
.5 Samoline Tseilities Suitable f acilities shall be provided for readily obtain-ing representative samples of aggregate from each of the batchers, and suitable devices for obtaining representative samples of concrete for slump tests, unit weight, air content, and uniformity tests to be made by the Engineer, shall be provided. All necessary platforms, tools and equipment for obtaining samples shall be furnished prior to l
the start of operations.
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.6 Concrete Specimens l
Concrete specimeos vill be prepared from the mixtures used in the work and tested to determine the adequacy'of control of the materials entering into the concrete mix. Preparation, storage and testing of the specimens vill be performed by the Engineer, Suitable facilities shall be provided within the plant for the Engineer for this control work.
.7 Test Veizhts Standard test weights and any other auxiliary equipment required for checking the operating performance of each scale and measuring device shall be provided. Periodic tests shall be made in the presencS. of the ' Engineer in such a manner and at such intervals as may be directed by the Engineer. Upon completion of each such and before further use of the measuring, weighing or recording
- test, devices, the' adjustments, repairs or replacements required to secure I
satisfactory performance shall be made.
ApErevalofConcretePl$ntT.avout
.8 P1'ans and written specification'for the proposed concrete plan; shall be submitted to the Engineer for his comments or approval.
The concrete plant shall be inspected by the Engineer asing the Check for Certification of Ready Mixed Concrete Production Facilities List published by the National Ready Mixed Concrete Association as a guide.
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ASIM SPECIFICATIONS REFERRID TO IN SPECITICATION LOU-1564.472 C31 Standard Method of Making and Curing Concrete Compressive and PJ Flexural Strengrh Test Specimens in the Field.
C33 Standard Specification for Concrete Aggregates.
R2 C39 Standard Method Test for Co=pressive Strength of Cylindrical R2 Concrete Specimens.
C94 Standard Specifications for Ready-Mixed Concrete.
R2 C127 Standard Method of Test for Specific Gravity and Absorption of Coarse Aggregate.
C128 Standard Method of Test for Specific Gravity and Absorption of Fine Aggregate.
K2 C143 Standard Method of Test for Slu=p of Portland Cement Concrete.
R2 C 150 Standard Specification for Portland Cement.
K2 C172 Standard Method of Sa=pling Fresh Concrete.
,=
' ts C173 Standard Method of Test for Air Content of Freshly Mixed Concrete j
l by the Volumetric Method.
C192' Standard Method of Making and curing Concrete and Test Specimens in the Laboratory R2
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C231 Standard Method for Air Content of Freshly Mixed Concrete by the l
Pres sure Method.
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C260 Standard Specification for Air. Entraining Admixtures for Concrete.
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C494 Standard Specification for Chemical Admixtures for Concrete.
C567 Standard Method of Test for Unit Weight of Structural Lightweight R2 Concrete.
C40 Standard Method of Test for Organic Impurities in Sands for Concrete.
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.s WATERFORD STEAM ELECTRIC STATION 1980 - 1165 MW INSTALLATION - UNIT NO. 3 CONCPITE PREPLACEMENT CHECKLIST RECORD Location:
F. lavation:
to Placeaant No. _ _
Detailed
Description:
CO:iTRACTOR INSPECTOR 7g Time Date Int.
Time Date Int.
Srndblast/Creeneut/ Foundation Treatment For=s (Line and Grade)
Blockouts, Keys, Waterstop, etc.
Ksinforcine Steel
. Anchor Bolts. E= bedded Steel Elaecrical Mar.hanical l
Final Clean-uo Remarks:
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Approved *for Placing Time Date.<
Contractor's Representative
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Approved for Placing Time Date
- - 18 Ebasco's Engineering (See Reverse Side for Instructions)
QCIP-6-1 (11-29-75) l Appendix B
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Y 7-18-78 l.
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W-WP-7 Appendix A BUILDING J. A. J0NES CONSTRUCTION COMPANY POUA NO.
nATERFORD UNIT N0. )
ELEV.
, ACTUAL POUR DATE CONCRETE PRE-PLACEHfMT CHECKLIST RECORD
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l" C0iPLETED AHD lN5PECTED i
J. A, J0taES SUPERWISION J. A. JONES Ef4GINEER QUALITY VERIFICAT10N AEMAAK$
Name Date Time Per Dwo & Rev Name Date [ Time Per Dwe's Rev.
Name Date T irne Per Dwe & Rev 4
l, Co*1 CRETE
- m. Santblast b Greencut
- c. Treatment I'
- 2. F08MS I
- a. Olrension
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- b. Line & CruJe
- c. Clean j
- d. Tlabt
.c.
Mraced i
- f. Ce nt ing O.
Chr.f er Strips j'
- h. Key W3ys
- 1. Sicsch Outs J. khalers &
Strenc'aacks
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- k. Waterstop
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- l. Rete sse Aatnt
- 3. KE Itirca.C1:;;
- m. Par Onnt itles b: SoacInn t.
E_levatico
- d. f..*.eid tiapping
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- a. Cuantity
.b. Linc & Cra.fe
- c. Elevation d.
fstentification
- 5. CEt3EPAt.
a.
Cleanliness b.
Ins t rtmen t a t ion i
' c. Westl4er Protection 1
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APPROVED AAEA SUP(AINTENDUlf DATE APPA0VE8 4. V. $UPEAvis0R DATE
m ESASCO SPECITICATION CONCRETE MASONRY No.
LOU-1564.472 Issue Date: December 31, 1971 SECTION II CONCRITE PLACEMENT, CURING AND FINISHINO i
1.
This isSection II of a specification covering the gen-SCOPE eral and specific requirements for concrete using on-site or estab-lished commercial off-site concrete production facilities.
This section covers the transportation of concrete from the mixer to the place of final deposit and the placing, curing, pro-tacting, repairing and finishing of the concrete.
It also covers the i
cleanup and other preparation of the areas in which the concrete is to be deposited.
2.
Definition 'of terms used in this Specification are as DErINITIONS follows:
.1 Engineer In these specifications, the " Engineer" shall mean the l
person in responsible charge of the work for the owner, or his representative.
i) 2 ASTM Standards
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When this Specification refers to certain " Standard Spec-ifications" or " Tentative Specifications" of the American Society for Testing and Materials, the latest revision of those specifications shall apply.
.3 Detailed Soecifications Where the phrase " detailed specifications" is used in this Specification, it shall be understood to refer to specifications which may be included on the construction drawings or in the Contract for the purpose of supplementing, modifying or eliminating any of the requirements of this Specification.
4 Aggregates
" Aggregate" in general designates both tha 'ine and coarse inert materials used in the manuf acture of concrete. Sand is a fine aggregate. Crushed rock, natural gravel, or crt:hed gr: vel a-e i
coarse aggregates.
l 3.
All concrete shall be conveyed from the mixer to the place TRANSPORTATI of final deposit in suitable buckets, containers or conveyors which l
shall be mortar-tight. All means cf conveyance shall be adapted to
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delivering concrete of the required consistency and plasticity with-R,.
out segregation or loss of slump.
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A EBASCO SPECIFICATION y
CONCRETI MASONRY No.
LOU-1564.472 Issus Dato:
Dees =her 31, 1972
.l-SECTION II (Cont'd)
R1-March 15, 1972 R2:
January 3, 1975 RS: March 11. 1975 R6-Dec 16,'75 TPJ.NSPORTATIO*
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3.1 Ti=e Interval Between Mixine and Plaeint For all structures, coicrete shall be placed in the
- (Cont'd)R1 1
forms vitliin sixty (60) minutes af ter the in'.tial addition of water, R4 and b'efore the dru= has made 300 revolutions unless otherwise author.
R5 ized by the Engineer.
In addition, the concrete te=perature shall R6 l
confor= to Section I, Paragraph 14 However, at no time shall the concrete be placed after the initial set, or more than ninety (90) minutes after the initial addition of water.
2 Rete =eered Concrete Water may be added to transit mix concrete on arrival at the site so long as the total allovable cuantity of water is not exceeded R4 l
and provided the requirements of Paragraph 3.1 above are met.
After l
the addition of water, the drum shall be turned an additional 30 re-volutions at mixinF speed, however, in no case shall the total revolutions i
- exceed 300. Water shall not be added to the concrete at any other time.
.3 Ci es'nint EeT11ecent All equipment used for transporting and placeing of con-crete shall be maintained in clean condition.
All buckets, hoppers, chutes, and other equip =ent shall be thoroughly cleaned af ter each l
period of placement.
4.
The procedure for placing of concrete shall be as follows:
PLACING
.1 Engineer's Aceroval of Eeutement and Methods
...9 9
Before any concrete is placed, the entire placing progra=,
consisting of equipment, layout, proposed procedures and methods shall be submitted to the Engineer for approval, and no concrete shall be placed until the Engineer's approval has been received.
.2 Qntrol of Placine The control of placing shall begin at the mixer discharge.
Concrete shall be discharged by a vertical drop into the middle of the bucket or hopper and this principle of vertical discharge of cone ate shall be adhered to throughout all stages of delivery until l
the concrete comes to rest in the strucJ:ures.
.3 Avoidine Secreestion l
Concrete shall, in all cases, be deposit.ed as nearly as practicable directly in its final position, and shall not be caused to flow in a =anner which will cause segregation.
For locations where direct placement is not possible, and in narrow for=s, the I
Contractor shal.1 provide suitable drop chutes and " elephant trunks" to confine the
- concrete in movement.
4 Tvee of Buckets l
Central-bottom-dump buckets shall be e= ployed of a type l
that provides for positive regulation of the amount and rate of deposit of concrete in all du= ping positions.
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m== Project Idsntification dm6 3-E3ASCO SPECITICATION CONCRETE HASONRY No. LOU-1564.472 Issue Date: Dece=ber 31,197:
SECTION II (Cont'd)
R1: March 15, 1972 R2: June 1, 1972
))
R4: January 3,1975 4.5 Doeration of Buckets PLACING
( Cont ' d)
In placing concrete in large open areas, the bucket shall be spotted directly over the position designated and then lowered for dumping.
The open bucket shall just clear the concrete already in place R1 and the unconfined height of drop shall not exceed 5 ft unless larger drops are specifically approved by the Engineer.
The bucket shall be R2 opened slowly to avoid high vertical bounce. Dumping of buckets on the swing, or in any manner which results in separation of ingredients or disturbances of previously placed concrete will not be per=itted.
.6 Placement in Restricted For=s Concrete placed in restricted for=s by barrows, buggies, cars, short chutes or hand shoveling shall be subject to the require-ment for vertical delivery of 1L=ited height to avoid segregs-f;n and shall be deposited as nearly as practicable in its final position to avoid segregation due to rehandling or flowing.
.7 Chu' ting Where it is necessary to use transfer thutes between mixer, containers or hoppers, and point of deposit in the for=s, specific approval of the Engineer must be obtained as to type, length, slopes, R4 baffles and vertical ter=inals.
Concrete shall not be permitted to fall from the end of the chute or tube more than 5 ft unless specific approval is obtained from the Engineer.
Chutes, when used, shall have y.i$
slopes not flatter than 1 to 3, and not steeper than 1 to 2.
.8 Placine bv Pu=oine Concrete may be conveyed and placed by mechanically operated pressure equipment with the permission of the Engineer. The water-ce=ent ratio may not be increased above that of the same class concrete placed by bucket, and the slump shall be held to the minimum necessary for conveying concrete by this method. Alu=inum or galvenized steel pipe shall not be used to convey concrete from the pump to the place of deposit. The first i
I 1000 cu yd 'placed by pu= ping shall be sampled and tested in accordance with R1,4 this Specification at the point of placement in the for=s and' prior to the pump. If consistency is found in concrete properties at both those points l
further sampling and testing may be done solely prior to entering the pu=p.
Lubrication of the pipe line at the start of the pumping operation shall be provided by a Class F mortar or a batch of concr'ete without the coarse aggre-gate. This, mortar or concrete shall be vasted and not used in the work.
R4
.9 cleanun Concrete shall not be placed imril the for=s, the cleaning of rock or concrete surfaces, reinforcing steel and embedded parts' in place j
have been inspected and approved by the Engineer.
See Paragraph 7 and l
Paragraph 8.1 of this Section.
.10 Removine Surface Water No concrete shall be placed on a water-covered surface.
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Project Idsntification EBASCO SPECITICATION CONCIETE MASONRY yo.
Lou.1564.472 Issue Date:
December 31, 1971
)
SECTION II (Cont'd)
PLAC I?;0 4.11 Thickness of Lavers (Cont *d)
Concrete shall be placed in successive horizontal layers ranging in thickness from 6 to 20 in, as directed by the Engineer.
The bucket loads, or other units of deposit, shall be spotted pro-gressively along the f ace of the layer with such overlap as vill facilitate spreading the layer to uniform depth and texture with a minh of shoveling. Any tendency to segregation shall be corrected by shoveling stones into mortar rather than mortar onto stones. Such a condition shall be corrected by redesign of mix or other means, as directed by the Engineer.
a
.12 Beddine of Lavers Bedding planes shall be approxi=ately horizontal, except in dams or other structures where it may be required to incline the beds, without forms, on a downward slope of about i vertical to 10 horizontal in an upstream direction, in which case the placement shall procer.d in an upslope direction.
13 Comnaction i
Concrete shall be compacted with mechanical vibrating j) equipment until the concrete has been consolidated to the maximum practicable density, is free of pockets or coarse aggregate, and fits i
tightly against all form suffaces and embedded materials, a - Tvoe of vibrators - Vibrators shall be the internal or i=nersion high-frequency type, with speeds of not less than 6000 revolutions per minute when i=mersed in the concrete. Vibrators shall be used in sufficient number of units and power of each unit to properly consolidate all concrete.
b - Use of Vibrators - Vibrators shall be inserted in a vertical position at intervals of about 2 ft, depending i
upon the mix, the equipment used, and continued exper-ience on the job. Vibrators shall be withdrawn slowly.
In no case shall vibrators be used to transport con-crete inside the forms.
e - Melding Successive Batches - In placing concrete in layers which are advancing horizontally as the work progresses, great care shall be exercisen to insure adequate vibration, blending and melding of the con-crete between the succeeding batches.
d - Vibrator Penetration.. of Underlaver - The vibrator shall penetrate the layer being placed and also penetrate the layer below while the under layer is still plastic to 3?
insure good bond and bomogeneity between the two layers and prevent the formation of cold joints.
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amm Project Identificction ZEASCO SPECITICATION CONCRI*E MASONRY No.
LOU-1564.472 ssue Date:
December 31, 1971 SECTION II (Cont'd)
R1: March 15, 1972
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'R4: January 3, 1975 4.13 (Cent'd)
PLACING (Cen:'d)
Care shall be taken e - Vibrating Aeainst Reinforcement i
to minimize contact of vibrators against reinforcement j
steel. ' Vibrators shall not be allowed to come in con-tact with the extending reinforcemed steel at the point F
less than 5 feet above concrete which has reached a stage of initial set.
Vibrators shall not be allowed to come in contact with forms of finished surfaces.
f - Use of Form Attached Vibrators - The use of for= attached vibrators shall not be permitted without specific authoria -
tion of the Engineer.
g - Use of Surface vibrators - The use of surfacevibrators will not be permittad under ordinary conditions. How-ever, for thin slabs such as highways, runways and sis-ilar construction, surface vibration by specially de-signed vibrators may be permitted, upon approval of the Engineer.
i h - Stone Pockets and Mortar Pendages - The formation of stone pockets or mortar pondage in corners and against face forms shall not be permitted.
Should these occur, they shall be dug out, reformed and refilled to suf fi-f.]{1 cient depth and shape for chorough bonding as directed by the Engineer.
14 Coostruction Jeines and Kevs Horizontal and vertical construction joints and bonding keys shall be located and shall conform in detail to the requirements l
of the plans unlems.otherwise directed by the Engineer.
a - Edging Strio - The top layer of any block or any day's l
work snall be trued-up to a rectangular edging strip F
set horizontally in the forms in a uniform pattern Ch d ered admins series may be pleasing to the eye,the discretton of the Engi5eef in specific used at locations.
b - Treatment on Suseension of Work - Whenever work is sus-pended on any section for more than one hour, the hori-zontal edges of the concrete next to the forms on sur-faces which will be exposed shall be brought to o hori-zental plane perpendicular to the plane of the forms and treatea so that the finished work will show smooth, straight lines conforming to an architecturally pleasing pattern.
c - For surface preparation at construction joints see Paragraph 7.3 K
.t5 wash werer Wash water shall be removed in a manner to prevent running an,,
down and staining of concrete surfaces which will be exposed at the
- El completion of the job. Should unsightly wash water streaks develop on the exposed surf aces, they shall be removed to a uniform color and texture satisfactory to the Engineer.
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EBASCO SPECITICATION CONCRETE MASONRY No.
LOU-1564.472 Issue Date:
Dec emb er 31, 1972 SECTION II (Cont'd)
R1: March 15, 1972 1
4.16 Placemen: Interval ptAc!NG Except when placing with slip for=s, each placement of concrete in multiple lift work shall be allowed to set for 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />, and longer vben required by the Engineer before the start of a sub-1 sequent placement. This interval may be shortened by the Engineer for a specific location.
17 Soecial Provisions in Placine When placing concrete in valls with openings, in floors of integral slab and beam construction and other sOnilar conditions, the placing shall stop when the concrete reaches the top of the opening, or bottom horizontal surface of the slab, as the case may be.
Placing shall be resumed before the concrete in place takes initial set, but not until it has had time, as deter =ined by the Engineer, to settle.
The fresh concrete shall be vibrated through into that in place to avoid cold joints.
18 Placine Cencrete Throuch Reinforcine Steel In placing concrete through reinforcing steel, care shall be taken to prevent segregation of the coarse aggregate. Where the congestion of steel makes placing difficult, it may be necessary to move top steel aside to get proper placement. In such instances, the
...id top steel should be replaced in proper position before the concrete
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hardens.
5.
All concrete shall be cured by keeping it da=p for the per-CURING,
iod of ti=e required for complete hydration and hardening to take PROTECTING l
REPAIRING l
place.
AND TINISH Certain types of finish, or preparation for overlying concrete must be done at certain stages of the curing process and spedial.traatment may be required for specified concrete surface finish.
.1 Curine Vith Water Except when otherwise directed by the Engineer, all con-crete shall be cured by use of water which shall be continuously (not periodically) maintained on all exposed surf aces.
2 Continuous Straving Curing shall be assured by use of an 'adle water supply under pressure in pipes, with all necessary appliances of hose, sprinklers and spraying devices.
Continuous fine-mist spraying or sprinkling shall be used, unless otherwise specified or approved by the Engineer.
.3 Water Qualiev sr :
F9r specifications as to the quality of water see Section 2.
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Project Identification EBASCO SPECIFICATION CONCPJTE MASONRY No.
1.0U-15 64.472
. Issue Date: December 31, 1971 SECTION II (Cont'd) 1 5.4 Alternate Curine Methods
- CURINt, PROTICTING, Whenever, in the judgment of the Engineer, it may be REPAIRING _
necessary, the continuous spray method may be omitted and a cover-AND FINisv-'
ing of sand, or other approved mulching which will prevent loss of (Cont'd) moisture from the concrete may be used. No type of covering vill be approved which would stain or damage the concrete during or af ter the curing period. Covering shall be kept continuously vet during the curing period.
.5 Curing Comeounds Surface coating type curing compounds shall be used only by special permission of and,under the direction of ths Engineer.
Curing compounds shall be colorless pigmented, liquid type conf or=ing to ALSHO Specification M148. No curing compound shall be used on sur-faces where future bonding with concrete or painting is specified.
.6 Pedding For curing of concrete in pavements, sidewalks, floors, flat roofs or other level surfaces, the ponding method of curing is preferred. The method of containing the ponded water shall be approved by the Engineer. Special attention shall be given to edges 25 and corners of the slabs to ensure proper protection to these areas.
The ponded areas shall be kept continuously filled with water.
.7 Curine Te=oerature concrete shall be maintained above 50 F and in a moist condition for at least the first 7 days after placing, except that high-early-strength concrete shall be so maintained for at least the first 3 days. Other curing periods may be used if the specified strengths are obtained. For concrete containing a po:zolan, the cur-ing time shall be not less than fourteen (14) days. For additional requirements see Paragraph 8 of this Section on " Cold Weather" and
" Hot Weather Conditions."
.8 Curine Eouinment All equipment and materials required for curing shall be on hand and ready for use before concrete is placed.
.9 Protect *.m Flesh Concrc:e Fresh concrete shall be protected by leaving the for=s in place for an ample period (See Paragraph 6.12 of this Section),'by prevention of disturbing shocks and vierations, and by avoidance of premature stressing until the concrete has attained sufficient strength to sustain the dead and live loads.
Workmen shkil be warned against and prevented from disturb-ing green concrete during it; setting perdad. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
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.i Project Identification EBASCO SPECIFICMION CONCRETE MASOh'M No.
LOU-1564.472 SECTION II (Cont'd)
.q 5.9 (Cont'd)
- Ct2ING, PROTECTINO.
If it is necessary that worlanan enter the area of fresh-REPAIRING ly placed concrete, the Engineer may require that bridges be placed AND FIN!5E:
over the work area. Woricnen with duties on freshly placed concrete (Cent'd) slabs shall wear wooden " slats" approximately 8 in. vide by 18 in.
long.
.10 Repair and Replacement of Unsatis factorv Concrete Unsatisfactory concrete shall be cut out and replaced vich new concrete, as soon as practicable after removal of forms. Anchors, keys or dovetail slots shall be provids.f whenever necessary to attach the new material securely in' place.
Surfaces of prepared voids shall be vetted for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> inanadiately before the patching material is placed.
4 a - Use of Epoxv - The use of an epoxy for bonding fresh concrete used for repairs vill be permitted upon written approval of the Engineer. Epoxies shall be applied in strict accordance with the instructions of the Manufacturer.
[h b - Nethod of Repair
" Dry-pack" filling shall be used for small size holes having surface dimensions about equal to the depth of the hole; for holes lef t after removal of form ties, grout insert holes and slots cut for repair of cracks.
Mortar filling by cement gun shall be used for repair of areas too large for dry-pack, and too shallow for concrate filling.
for holes extending entirely through the concrete see-tion, for areas greatet than 1 sq ft and deepes than 4 in. and holes in reinforced concrete which are greater in area than one-half square foot and which extend beyond the reinforcement, the repair shall be made by making a complete filling of the void with vashed gravel or broken stone and liquid Portland cement grout shall be placed through filler pipes under pressure. Pipe nipples shall be placed through the forms at bottom cf.the void so that the : rout rites upward through the aggregate to spill through a vent at the top edge of the void.
c - Matching of Patched Surfaces - Tilling material used in repair of surfaces which will be exposed after comple-tion of the project shall be made with cement from the
.mj) same source as that used in the concrete blended with 8-
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A Projset Idsntifiention E3ASCO SPECIyICATION CONCRETE MASONRY No.
1.0U-1564.472 Issue Date:
December 31, W 1 SECTION II (Cont'd)
R1: March 15,1972 3
R4: January 3, 1975 5.10 (Cont'd) c (Cont'd)
- CURINO, a sufficient amount of white Portland ce=ent to R
Produce the same color in the adjoining concrete.
Patched surfaces shall be given a final treatmant to (Cont'd) match the texture of the surrounding material.
d - Curing of Patched Work - The patched area shall be l
covered immediately with an approved nonstaining, water-saturated material which shall be kept vet and protected against sun and wind for a period of 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. Thereafter, the patched area shall be kept vet continuously by a fine spray or sprinkling for not less than ~7 or 14 days as required by Paragraph 5.7 of this Section. The temperature in the repair R1 i
area shall be maintained above 50 F during the entire period of placing and curing.
e - Aceroval of Entineer - All materials, procedure and l
operations used in the repair of concrete and also the finished work shall be subject to the approval of the Engineer. All fillings shall be tightly bonded to the concrete and shall be sound, free from shrinkage dd) cracks or dr q areas after the fillings have been cured and dried.
.11 Finishing - General This Specification is intended to cover the treatment of concrete surfaces of all structures. Areas requi ing special finish not covered by this Specification vill be clearly indicated on the drnvings and special specifications will be furnished.
a - Finish for Formed Surfaces - The type of finish for i
formed concrete surfacas shall be as follows, unless otherwise specified by the Engineer.
l 1 - For surfaces against which backfill or concrete it to I
be placed, no treatment is required except repair of defective areas and filling of holes left by form R4 ties and rods.
2 - For surfaces below grade which' vill receive water-proofia treat =ent, the cmt ete.:hal1 ~be fret cf surface irregularities which would interfere with proper at9,$rition of the waterproofing material which *. m edfied for use.
3 - Sr? r v ; wich will be exposed when the structure l
1r. 2 se, ; e shall receive no special finish, ex-l crve rer.c of damaged or defective concrete, re-
,d moial of fins aceeding 1/4 in. in height and abrupt R4 u
irregularities, Ulling of holes left by for= ties and rods, and cleanup of loose or adhering debris...
--= P ro j e c t Idsntification E3ASCO SPECITICATIO:s CONCRE~E MASONRY No. LOU-1564.472 Issus Date: Dacs=bs: 31, 197:
SECTION II (Cont'd)
R1: March 15. 1972 R4: January 3, 1975 5.11 (Cont'd)
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b - Finish for Unformed Surfaces 1 - Surfaces which vill be exposed to the weather and C UT *NC.
which would normally be level, shall be sloped for PROTECT:
drainage.
Unless the drawing specifie: a horizontal PIPAIR:n surface or shows the slope required, the tops of nar-AND row surfaces, such as stair threads, valls, curbs and FINIS M parapets shall be sloped approximately 3/8 in. per foot of vidth; broader surfaces such as walks, roads, parking areas and platfor=s shall be sloped about 1/4 in. per foot.
2 - Surfaces that vill be covered by backfill or concrete, sub-floors to be covered with concrete topping, ter-razzo or quarry tile, and similar surfaces shall be smooth screeded and leveled to produce even surfaces.
Surface irregularities shall not exceed 1/4 in. higher or lower from the specified surface.
3 - Surfaces which vill not be covered by backfill, concrete or tile toppings, such as outside decks, floors and galleries and su=ps, parapets, gutters, sidewalks and slabs, shall be consolidated, screeded and floated.
Floating may be done with hand or with power-driven equipment.
Floating shall be started as soon as the screeded surface has attained a stiffness to per=it 9
finishing operations, and shall be th= minimum re-quired to produce a surface uniform in texture and free from screed marks or other imperfections.
Joints and edges shall be tooled as called for on the drawing ve as directed.by the Engineer.
c - Finish for k'atervav Surfaces - For surfaces which 1.-111 oe sumjected to moderate or high velocities of water, such as the crest section of spillways, spillway chutes, channels, etc, final finish shall be given by a steel trowel, t
l Special care shall be taken to manipulate screeds so that che surfaces shall conform to the shapes shown for these
- parts, k' hen the surface has been screeded to correct shape, l
vood floats shall be used to secure a fim, uniform texture l
vithout raising excess fine material to the surface. As soon as the floated surface has hardened sufficiently so I
as not to raise fines, the surface shall be brought to a R
uniform smoothness by use of steel travels.
Steel trove 12.ng shall be performed with a firm pressae to flatten the sandy texture and leave a dense, uniform sur-face, free from trowel marks or wher imperfections. ;
A mem6 Project Idantification ERASCO SPECIFICATION CONCRITE MASONRY No.
LOU-1564.472 Issue Date: Dec ember 31, 107'.
q SECTION II (Cont'd) 5.11 d - Protection - All concrete shall be protected against CUR ING,
damage until final acceptance by the Owner ar his PROTEITINO r epres entative. Special requirements governing the KEPAIRING curing and protection of concrete during periods of AND FINISM:
freezing temperatures and during periods of high (Cont'd) ambient temperatures are given in Paragraph 8 of this Section.
.12 Special Floor Finishes Floors of offices, shops, assembly rooms and other areas i
where a very uniform appearance and freedom from cracks or other imperfections are lesired, will require special care.
5.121 Finishing ooerations Upon completion of compaction by vibration and before initial set occurs, the floor surface shall be graded and all spots brought to grade adding extra concrete of the same mix when nee-essary. Finishing operations shall start as soon as the concrete will support the weight cf the operators and machines. The operator shall stand on mats, if necessary, to distribute his weight.
If free water cellects on the surface, it shall be retsved by a light 3
screed or sponging.
a - Screedine - Screeding and bull-floating shall be done in a manner so that the coarse aggregate is below the finished surface of the concrete. A coarse wire mesh may be used to depress the aggregate below the surface about 1/4 in.
b - Surface Finishine - Surface finishing of concrete shall preferably be by motor driven rotary float, but may be by hand. Use of wood-floats and wooden-bull floats are l
preferred over metal tools. Use of metal hand tools shall be avoided until the concrete has had initial l
set and all bleeding water is gone.
c - Sprface Texture - The final rurface texture may be cae of the following as specified on the drawing or by the Engineer.
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" Steel Trovel" - The final finish shall be made by use of steel bladed finishing trowels. Steel trowels shall follow the use of wood-floats by which the concrete shall have been brought to correct elevation and all surface imperfections corrected.
Steel troweling shall be continued only until the surface is emooth and uniform in texturs and appearance. If free water is brought to the sur-face during the finishing operations it shall be removed by sponging. Dry cement shall never be. -. - -.
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Project Idsntification EBASCO SPECIFICATION CONCRITE MASONRY No. 1DU-1564.472 Issue Date: December 31, 1971 SECTION II (Cont'd)
R1: March 15, 1972 y
R3: January 15, 1973 5.121 (Cont'd)
- cuRINO, FROTECTINO, c - (Cont'd)
REPAIRING used over the surface to absorb free water, or AND FINISHI to help smooth the surface, or for any other (Cont'd) reason. Finishing shall be timed and performed so that extra water will not have to be applied to the surface being troweled.
2.
" Wood Float" - The final finish shall be made with floats made of soft wood. Floats made of hard, dense surface wood will not be satisf actory.
The floor surface shall be creweled only until the surf ace is entirely free of imperfections and uni-form in texture and appearance.
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" Hair Brush" - This finish shall be formed as for steel trowel finish, except that the final step -
shall consist of brushing with a hair bristled floor brush.
Sufficient pressure shall be applied that the surface is roughened to a depth of about 1/32 in.
and is of uniform appearance and texture.
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" Broom Finish" - This finish shall be the same as for wood-float except that the final step shall con-sist of roughening the surface with a fiber bristled
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.53 broom or floor brush. The final surface texture
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shall be uniform in a pearance with scores about 1/16 to 1/8 in. in de th.
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" Rubber Float Finish" - This finish shall be formed as per steel trowel finish except that the final step shall consist of a light hand rotary scrubbing with a soft rubber float to roughen the surface to a depth of not more than 1/32 in.
.122 Surface Slooes Special care shall be taken to ensure the correct shaping of the surface drainage slopes as called for an the drawings, or as directed by the Engineer. Screens shall be set accurately. After concrete has been placed and compacted, a template shall be used to; determine that the slopes to floor drains are true and that no lov areas exist.
Low areas shall be brought to correct height after the concrete has been compacted, and high areas shall be smoothed down.
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.123 Curing Proper curing is essential ' add immediately following comple-i l
tion of finishing operations, and after concrete has taken initial set, the floor shall be covered to prevent evaporation of water from the con-crete. Protection shall be provided in one of the following ways, given l
in order of preference.
a "Ponding" - Cover the entire floor area with a layer of 9
water contained by the side forms or by a dam around the periphery. Water lost by leakage or evcporation shall be repisced to insure constant cover. This shall be
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maintained for 7 days..
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EBASCO SPECITICATION CONCRETE MASONRY No.
LOU-1564.472 Issue Date:
December 31, 1971 SECTION II (Cont'd)
R4: January 3 1975 1
R6:
December 16, 1975 m
- CURING, 5.123 (Cont'd)
PROTECTING,
REPAIRING b
" Wet Sand" - Cover the entire fEloor area with sand AND FI.NISHI to a depth of 2 in. and keep the sand fully saturated (Con:'d) for a period of 7 days.
e "Sisalcraft Paper and Polyethylene Sheeting" - Cover the entire floor area with a white pigmented polyeth-ylene sheeting or a two ply layer of sisaleraf: paper lapping the covering not less than 1 f t at joints and sealing the joints and edges with an adhesive backed tape.
d
" Compound" - The use of a colorless curing coc: pound conforming to ASIM designation C309 Type.1, clear and translucent will be approved by the Engineer only if ponding or the vet sand methods are not possible be-cause of essential construction operations. Specifi-cation for its use vill be issued with the Engineer's approval. A compound is not permitted on areas which will have toppings or cou: position floor tile.
canvas, or a=y material which could stain the con-Rt.
a - Burlap, hall not be used. This restriction does not apply R6 crate s 0;
to surfaces which shall recaive a separate finish such as paint or tile.
.124 Seoarate Finishes A curing coc: pound shall not be per=itted on base slabs which will have a separate finiu or composition tile.
a - A separate Class T concrete finish shall be used when specified on the design drawings, or when directed by r
I the Engineer for special conditions, and shall be I
applied in conformance with Engineers instructions.
b - When a separate terrazzo or quarry tile finish is specified, the surf ace of the base concrete slab shall be leveled true with a tolerance of plus or minus 1/4 in.
It shall be a uniform distance belov the finished floor level as shown on the design draw-The surface l
ings or as directed by the Engineer.
shall be wood-floated and water cured for a minimum of 3 dafs. Terrazzo or quarry tile finish shall be applied in conformance with special specifications furnished by the Engineer.
c - Floors that will be covered with composition floor tile bonded with adhesives shall be steel traveled smooth and level within 178 in, tolerance and water
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cured for a minimum of 3 days.
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s Project Identifiestior.
CONCRETE MASONRY No.
LOU-1564.472 Issue Date:
Dec ember 31, 1971 SECTION II (Cont'd) 5.124 (Cont'd)
- CURINc, PROTECTINO d - When color concrete floor finishes are required, the admixture or dust-on colors shall be applied in accord REPAIRING AND FINISE' ance with Manuf acturer's instructions and special spec.
(Cont'd) ifications furnished by the Engineer.
e - When separate topping slabs 3 in. or less in thickness are required, they shall be bonded to the base slab by and approved bonding agent applied in accordance with Manufacturer's instructions.
.125 Floor Hardener Floors subject' to severe usage shall have an approved non-staining liquid floor hardener applied to the cured surf ace when specified on the drawings or when directed by the Engineer.
.126 Base Prenaration for Toening Slab Prior to the placement of the turbine-generator pedestal topping slab the concrete base shall be prepared by removing all l
j irregularities. The entire top surface shall be roughened uniformly 2nd projecting metal jack posts or other sinilar items shall be cut l
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- =E off close to the concrete surface.
a - All areas having oil or grease absorption shall be thoroughly cleaned by repeated washings with a strong solvent or detergent, followed by thorough vashing with clean water.
The entire surface shall be cleaned by air-water jet to remove all dirt and loose particles of concrete. Concrete shall not be placed when the turbine is in operation.
b - Topping slabs shall be bonded to the base slab'with bonding agent, approved by the Engineer, applied in l
accordance with the Manufacturer's instructions and as noted on the drawings.
.127 Insnection Only by careful attention to all the details of the work will it be possible to accomplish the desized result of crack-free stabs of good appearance. The most ' critical point in the entire procedure is the competence of inspection. The personal attention of the Engineer during the placing and finishing operation is con-sidered essential to assure that all work is done in accordance with the Specification. Care should be taken to avoid marring the complet-l ed floor by abrasion or staining.
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Forms of concrete shall be as follows:
FORMS,. - _. ~. - - -..
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EBASCO SPECIFICATION l
CONCRETE MASONRY No.
LOU-1564.472 Issue Date:
December 31, 1971 SECTION II (Cont'd)
- -.1 R1: March 15, 1972 R2: June 1, 1972 6.1 Form Recuirements FO?MS (Cont'd)
Forms shall be built true to slopes, lines and dimensions as called for on the drawings. They shall be properly braced'and tied to maintain correct position and shape until their removal.
I Bulges or offsets which result from yielding of the form to pressures of fluid concrete or other forces must be removed before acceptance of the work. Both form material and method of construction shall be subject to the approval of the Engineer. Form work shall meet the l
tolerance requirements of Table 4.3.1 of proposed Revision of ACI 301-66 as published in AC1 Journal, June 1971.
.2 Ins >ection Forms in place, with ties and braces, shall be subject to i
inspection and approval by the Engineer and no concrete shall be placed until approval ~has been received.
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.3 Form Material Form faces for surfaces which vill be exposed at the ec=pletion of the project shall be made of metal, plywood or med and. surfaced lu=ber, unless otherwise approved, and shall be mortar-tight and smooth.
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Form and form linings of water-absorbent material or material required to produce a special f ace finish, vill be shown on approved plans or called for in the detailed specifications for a specific job.
.4 Tie Reds Metal tie rods shall be used for supporting all forms. Pro-vision shall be made for removal of a section of each red at sur-face of the concrete to a depth of approximately 1 in.
Form ties for valls subject.to internal or external hydrostatic pressure and required R1 l
to be watertight against all leaks shall be permanent snap type with j
wat,er seals. When form ties are broken back when re=oved, the re-p sulting hole shall be filled with greut.
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.5 Tie Wires Tie wires vill not be permitted on any surfaces which vill be exposed in the completed work or in unexposed surfacas or jotrts along which water might travel. Tie wires will be permitted only upon approval of the Engineer, and when permitted, shall be cut off flush
' vien the race of the concrete, os c.suntersank, filled and finished, as required by the Engineer, in the manner specified in Paragraph 5.11 of this Section.
.6 Forn Oil For=s left in place from a previous placement of concrete
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shall be thoroughly cleaned and treated with an approved nonstaining. - - - - - -
Project Identification E3ASCO SPECIFICATION CONCRETE MASONRY No.
LOU-1564.472 ssue ate:
ecember 31,197:
SECTION II (Cont'd)
R1: March 15, 197.
R4: January 3, 1975 R6: December 16, 1975 6.6 (Cont ' d)
R7 August 3,1976 F OP.v.5 g ne d) for= oil shortly before the suceceding placement. Oil treatment shall be made before the placer.ent of any reinforcement steel adjacent to the forms. All excess oil on the form surfaces and any oil on metal or other parts to be embedded in the concrete shall be carefully removed.
.7 Chamfers and Fillets l
All outside corners and angles exposed in the finished structure shall be formed with moldings to form chamfers or fillets on the finished l
concrete. The standard dimensions of chamfers and fillets, unless other-visespecified,shallbe3/4in.by3/4in. Care shall be exercised to insure accurate moldings. The diagonal face of the molding shall be planed or surfaced to the same texture as the forms to which it is attached. For=s on inside corners shall not require beveling o chamfers unless indicated on the drawings or as directed by the Engineer.
.8 Vertical Construction Joint Chamfers Vertical construction' joints on faces which will be exmosed E"
at the completion of the project shall be finished true and plumb as shown R'.
i on the drawings or as directed by the Engineer R7
.9 Joints Joints in forms shall be horizontal or vertical unless otherwise specified and shall be smooth, tight and unyielding.
Suitable devices shall be used to hold adjacent edges together in accurate alignment. All forms shall be so made that they can be removed without hammering or prying against the concrete.
.10 Reuse of Forms Forms which are to be reused shall be repaired before reuse to provide smooth and mortar-tight faces.. If the fbrms vill be reused for concrete which will be exposed in the completed work, holes or openings shall be filled with wood and sanded smooth. Forms shall be thoroughly cleaned of all adhering concrete ano dirt left frem previous use. Forms shall be reoiled liefere resetting in accordance with Manufacturer's,reconsnendation unless otherwise directed by the Engineer.
Forms which are badly damaged or which have had axeesst.4 reocir' work done on them shall te discarded at the direction of the Engineer.
.11 Cleanout Provisions Forms with limited working space within shall be pro-vided with te=porary cleanout doors or openings for cleaning,
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vashing, bleving and removal of water, wood chips, dirt trash, etc.
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Project Idsntification EBASCO SPECIFIC). TION CONCRETE MASONRY No.
LOU-1564.472 Issue Date:
December 31, 1971 9~
SECTION II (Cont'd)
R4: January 3, 1975 6.12 Removal of Forms FOP 3.S (Cont'd)
Forms shall be lef t in place until removal is authorized and shall be removed carefully to avoid injury to the concrete.
Form removal vill be authorized and forms shall be remcved as soon as practicable to permit start of water curing and repair of surf ace imperfections as provided in Paragraph 5.10 of this Section.
.13 Time for Keenine Forms in Place l
l Under favorable curing conditions for concretzusing Type l
II Portland cement, forms shall remain in place aftet placement of concrete for apprcximately:
36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> for massive valls or face of mass concrete l
i 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> for thin valls and colu=ns 7 iiays for underside of floor slabs Provided shoring and/or 14 days for the underside of bea=s
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- p r 28 d These time intervals may be reduced only if a, proved in writ-R4 ing by the Engineer.
Such approval for variance shall be in strict ac-5) cordance with ACI-347.
7.
All surfaces upon or against which concrete vill be FOUNDATION placed shall be prepared by suitably shaping and thoroughly
- BEDDING, cleaning, Washing and unvatering as may be indicated in the plans, BONDING ANE or as the Engineer may direct, to meet the various situations en-JOINTING countered in the work.
.1 Preparation of Rock Foundation The prescribed methods of rock excavation vill be shown on the drawings or given in the genertl specifications for excavation and foundation preparation for a particular job and not in this Specification. The exact foundation configuration cannot always l
be predicted and the subsequent treatment thereof cannot always be shown or indicated on drawings prepared before the excavation is done. However, the following general requirements shall be observed.
a - Concrete shall not be deposited on large sloping plane rock surfaces. Were required by the Eng'. eet,
or as indicated en the plans, the rock shall be cut to form rough steps or benches, to provide roughness or a more suitable bearing surface, b - Rock foundations shall be prepared by picking, barring, vedging and similar methods which will leave the rock F
in an entirely sound and unshattered condition.
T Project Idantification EBASCO SPECIFICATION l
CONCRETE MASONRY No.
LOU-1564.472 ssue a a: De d er 31, 1 H 1 SECTICN II (Cont ' d)
R1: March 15, 1972 R4: January 3, 1975 7.1 (Cont'd)
FOUNDATION
- BEDDING, c - Shortly before concrete is placed, the rock surface BONDING AN!
shall be cleaned with a high-pressure water and air JOINTING jet, even though it may have been previously cleaned (conc'd) in that manner.
d - Prior to placing concrete, the rock foundation shall be kapt vet for a period of two to four hours unless otherwise directed by the Engineer.
e - Before placing concrete on rock foundations, all water shall be removed fro = depressions to permit thorough inspection and proper bonding of the con-crate to the rock.
2 Prensration of Earth Foundations All earth surfaces upon which or against which concrete is to be placed shall be well coc:pacted and free from standing water, mud
- or debris. Soft or yielding soil shall be removed and replaced with lean concrete or with selected soile and compacted to the same density as surrounding area. The surface of absorptive soils 33T against which concrete is to be placed shall be moistened thoroughly so that moisture vill not be drawn from the freshly placed concrete.
.3 Prenaration of Concrete Surfaces The preparation of concrete surfaces upon which additional concrete is to be placed shall pref erably be done by scarifying and clean-ing while the concrete is between its initial and final set or soon after F
final set. This method shall be used wherever practicable and shall con-sist of cutting the surf ace with picks and stiff brooms and by use of an approved combination air and water jet, as directed by the Engineer.
Great care shall be taken in perfornifig this work to avoid removal of too much mortar and the weakening of the surface by loosening of l
aggregate.
When it is not practicable to follow the above method, it I
vill be necessary to employ chipping tools to remove laitance and roughen the surface.
Tite finsi iequired result shall be a roughen'ed, pitted sur-face from which all dirt, unsound concrete, laitance and glazed mortar I
have been removed and aggregate exposed for approximately 1/4 in, depth, and shall be subjected to the approval of the Engineer. Wet sandblasting shall be done, if reouired by the Engineer.
See Pararranh 7.4 for general guidelines.
=\\)
l l
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Project Idantification EBASCO SPECIFICATION i
CONCREIE MASONRY No. LOU-15 64.472 Issue Date: Dece=ber 31, 1971 "3
SECTION II (Cont'd)
.R1: March 15, 1972 r-R4: January 3, 1975 R7: August 3, 1976 7.4 General Guidelines for Preoaration of Concrete Surteces TOUNDATION
- BEDDING, a - Shortly before new concrete is placed, the exist-BONDING AND ing concrete surface shall be cleaned with a high JOINTING pressure water and air jet, even though it may (Cont'd) previously have been cleaned in that==nner.
I b - Prior to placing new concrete, the existing concrete surface shall be kept vet for a period of two to four hours unless otherwise directed by the Engineer.
c - Before placing new concrece, all water shall be re-moved from depressions in the existing concrete in order to permit thorough inspection and proper bond-ing of the new concrete to existing concrete.
.5 Ecoxv Bondina comoound Epoxy bonding compounds, approved by the Engineer, may be used to bond new to old concrete.
.6 Cleaning and Bondine Formed Construction Joints vertical construction joints witnout keys shall be cleaned F
as in Paragraph 7.3 of this Section.
Formed vertical construction joints with keys shall be R:
inspected upon stripping of forms and laitance and unsound mortar recoved.
?- ;
i Vertical construction joints formed by use of expanded metal mesh shall be cleaned with wire brush and other means as R-specified in Paragraph 7.3 of this Section.
19 -
C.--,-__,-,__......
mm.
Projset Identification EEASCO SPECIFICATION CONCRETE MASONRY No.
LOU-1564.472 ssue Date: December 31,19E SECTION II (Cont'd)
R4: Januarv 3 1975 R3: March 11,,1975 7.7 Expansion and Contraction Joints FOUNDATI?:
BEDDING,
l Provision vill be made for expansion and contraction in BONDING AN!
concrete by use of special type joints locceed as shown on the J0D; TING drawings. Contraction joint surfaces are to be created as directed (Cont'd) by the specifications shown on the drawings or as directed by the Engineer.
t I
l 8.1 When concrete is to be placed under adverse weather ADVERSE conditions special provision shall be made in the handling and WIATHER placing methods and in protection during the curing period to CONDITIONS l
ensure that concrete of full strength and free from damage will be obtained. Hot weather conditions shall" be considered to be in effect whenever the dry bua temperature is above 85 T and is expected to go higher.
Cold Neather conditions shall be con-sidered to be in eff ect whenever the dry bulb temperature is at, or below, 40 F and can be expected to fall lower.
2 Hot Weather Before concrete shall be placed when hot weather condi-tions apply, the Contractor shall have prepared adequate means for l
protection of the concrete during the entire curing period. The
'=9 methods proposed shall be subject to the approval of the Engineer.
In addition the following steps shall be takan:'
a - Placing in Hot Weather - When hot weather conditions are R4 l
in effect the concrete shall be placed in the forms and l
consolidated to final state as seen as possible, but ene R5 l
interval between mixing and placing shall not exceed 60 l
minutes. or before the drum has revolved 300 revolutions.
l vhich come first, after the addition of water to the cement and aggregates, unless otherwise directed by the Engineer, b - Reight of Lifts in Hot Weather - turing hot weather conditions, the height pf lif ts in structures of large concrete voluma shall be reduce'd, as necessary, or other means employed as approved by the Enginner to reduce the b'est of hydration in the interior pf mass. Extreme care shall be taken to prevent crack formation in areas of restraint to concrete shrinkai;e.
.3 Cold Weather When cold weathar tanditions are in effect, no concrete shall be placed until satisfactory provisions have been made f or protection and to maintain the ambient temperature at minimum 45 F and maximum of 65 7 for at least 10 days after placing.
In addition, the following steps shall be taken:
i l
A l
l.
L
A mm, E3ASCO SPECIFICATION CONCRETE PASONRY No.
LOU-1564.472 ssue Date: Dece her 31, 1972 a
SECTION II (Cont'd)
Rl: March la,, 197.
8.3 (Cont'd)
ADVERSE WEATHER a - Frozen Surfaces - 7rozen or frost cortred surf aces, CONDITIONS against which concrete is to be placed shall be (Cont'd) covered and heated before start of place =ent of concrete, to re=ove all frost and raise the te=pera-ture of the surfaces to above freezing. Check shall be made to insure that frost has been re=oved fro =
soil to its full penetrated depth.
b - Concrete Te=s erature - The operation of protaccion equipment and the renoval of for=s shall be handled in such manner that the surface concrete will nr t be subjected to a differencial in te=perature of more than 25 F, as deter =ined by observation of a=hient and i
j concrete surface temperature indicated by suitable thermomet ers.
c - Use of Scaca Coils or Heater Air - Stea= coils, confined steam vapor or heated air shall be used l
when necessary for curing and for protecting the concrete from frost. Sufficient coverings or i
housings of fabric, wood or other material shall
=.
l be provided and used to retain the hatt and moisture.
The concrete shall be kept sufficiently moist at all l
times during the during period to prevent detri= ental loss of water of' hydration. If heated air is used, extra care must be exercised to assure a continuous condition-of sufficient moisture.
The flew of heated air shall be directed by means of Iaffles so as to provide a condition of uniform te=perature and to avoid " hot spots."
4 Use of Calgtum Chloride i
l Calcium chloride shall not be used for accelerating the set of the cement in any concrete containing reinforcement or embedded j
metal parts. The use of calcium chloride in mass concrete of footings and similar locations vill be permitted only upon written approval of the Engineer. When calcium chloridais used, it shall be liquefied and added to the mixing water in an amount nct to exceed two percent of the weight of the cement in each batch,of concrete.
I l
9.
Unde all ordinary conditions, all foundations shall be PLACINO i
Eo=pletely unva.
d and concrete placed in the dry. However, CONCRETE when cencrete pl.
1ent under water is necessary, the procedure UNDER shall be as folic.,:
WATER 5
l 1
-_e-_p w-
A em gs Projset Idsstification EBASCO SPECITICATION CONCRETE MASONRY No.
LOU-1564.472 Issue Date:
December 31, 1971 SECTION II (Cont'd)
.f p
g 9.1" Methods of Placement CONCRETE Concrete shall be deposited underwater by means of UNDER WATER tre=ies, or bottom-dump covered buckets of approved type.
(Cont'd)
.2 Direction Inseection and Aceroval All vork requiring placement of concrete underwater shall be designed, directed and inspected with due regard to local cir-cumstances and purposes. All undervater concrete shall be placed according to the plans or specifications and as directed and approved by the Engineer.
W I
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Proceclurc No.
W-VP-7 d.
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J. A. JONES CONSTRUCil0N COMPANY CONSTRUCTION VORK PROCEDURE FOR CONCRETE Pl. ACING, CURING, FINISHING AND REPAIRS WATERFORD SES UNIT NO.3 CONTRACT NO. W3-itY-4 2NGINEERING QUAllTY ASSURANCE CONSTRUCT 10N REV.
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J. A. JONES CONSTRUCTION COMPANY CONSTRUCTION VORK PROCEDURE FOR I
X CONCRETE PLACING, CURING, FINISHING AND REPAIRS b
WATERFORD SES UNIT NO. 3 CONTRACT NO. W3-NY-4
- ?.lp{
l ENGINEERING l QUALITY ASSURANCE CONSTRUCTION REV.
DATE APPROVED SY DATE APPROVED BY CATE APPROVED BY CATE
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J.A. JONES CONSTRUCTION COMPANY PAGE 1 0F 13 PROCEDURE NO.
W-WP-7 CONSTRUCTION WORK PROCEDURE i
Issue Date:
TITLE OF PROCEDURE:
CONCRETE PLACING, CURING, FINISHING AND REPAIRS 11-24-75 Rev. No. & Date:
PROJECT TITLE:
WATERFORD SES UNIT NO. 3 CONTRACT NO. W3-NY-4 20 7-18-78 1.0 PURPOSE To outline methods used by J. A. Jones Construction Co.npany and Subcon-tractors to place, cure, finish and repair concrete.
I 2.0 SCOPE
~~
This procedure includes th'e requirements to be used by J. A. Jones and their Subcontractors to comply with approved construction drawings and specifications.
3.0 DEFINITIONS 3.1 Water The water used for all aspects of this procedure shall be furnished and certified acceptable by the Engineer, it shall be free from any
. injurious amounts of acid, alkali, salts, sediment or organic matter and shall not contain morethan 1000 ppm of dissol,ved solids and not more than 100 ppm chloride ion.
3.2 Hot Weather Hot weather is when the dry bulb temperature is above 85 degrees *:
and is expected to go higher.,
I 3.3 Cold Weather
~
Cold weather is when the dry bulb temperature is at or below 40 degrees F and can be expected to fall lower.
R-5 3.4 Cold Joint
--' A cold joint -is defined as an area -in which -previously placed concrete cannot be made monolithic with a successive layer due to loss of plasticity in the original layer, where concrete shall be considered plastic if a vibrator spud, up to 2 inches diameter, suspended verti-l cally, will penetrate to a depth of at least 6 inches in a period of i
15 seconds.
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J
..e J.A. JONES CONSTRUCTION COMPANY PAGE 2 0F 13 PROCEDURE NO.
CONSTRUCTION WORK PROCEDURE W-VP-7 TITLE OF PROCEDURE:
issue Date:
CONCRETE PLACING, CURING, FIN,lSHING AND REPA IRS 11-24-75 PROJECT TITLE.
Rev. No. & Date:
WATERFORD SES UNIT NO. 3 CONTRACT NO. W3-NY-4 20 7-18-78 R-1
4.0 REFERENCES
~
4.1 Ebasco Services, Inc. Specification LOU-1564.472, Section 11, latest Tevision, " Concrete Placement, Curing and Finishing".
4.2 J. A. Jones' Procedure, W-SITP-7, " Concrete Placing, Curing, Finishing and Repai r inspection".
R-12 4.3 Engineering information Requests 200-53, dated 9-17-76 and 200-67, dated 12-23-76.
R-12 4.4 Ebasco Letter No. F 10055, Dated 8-27-76.
R-13 4.5 Ebasco Letter No. F-15886, Dated 5-06-77.
$.0 RESPGNSIBILITIES 5.1 Ebasco Services, Inc. is responsible for furnishing all materials,
-receiving inspect ion, testing and documentation of such test as re-quired by Reference 4.1 to support J. A. Jones and their Subcontractors in performing their work.
5.2 J. A. Jones and their Subcontractors are responsible for forming, placing, curing, finishing, repairing and inspection of concrete as
-required by the approved drawing.s and specifications.
6.0 TRANSPORTATION
~
R-1 6.1 Convey all concrete from mixer to place of final deposit in bucket,
, tontainer or conveyors to assure required consistency and plasticity without segregation or loss of slump beyond limits of specification.
R-4 6.2 Check time and number of drum rotations after water has been added to the cement and aggregate, as deemed necessary.
Concrete must be placed in forms within one hour or 300 rotations of drum, whichever one occurs first, unless authorized by the Engineer and then time must
.not exceed one and one-half hours.
R-1 6.3 Vater shall be added only by the Engineer.
R.
6.4 Clean all tools and equipment used in placing concrete before and after placement.
. pse.
J.A. JONES CONSTRUCTION COMPANY PAGE 3 0F 13 I PROCEDURE NO.
- -CONSTRUCTION WORK PROCEDURE
^
V-WP-7 TITLE OF PROCEDURE:
Issue Date:
CONCRETE PLACING, CURING, FINISHING AND REPAIRS 11-24-75 PROJECT TITLE:
Rev. No. & Date:
WATERFORD SES UNIT NO. 3 CONTRACT NO. W3-NY-4 20 7-18-78 R-2 6.3 At any time it becomes necessary to break down concrete conveying equipment for cleaning or repair during a placing operation, care shall be taken tio r
prevent the concrete contained in the equipment from be'ng dropped in excess of 5'-0" into the placement.
l
~
t 6.5.1 Acceptable concrete contained in the conveying equipment may be
. transported by other acceptable means (skip pans, wheelbarrows,
-carts, etc.) and deposited in the placement by the approved method, except that concrete must not be dropped in excess of 5'-0" or
.-handled in any other way that would cause segregation.
Concrete tha't has been handled in any detrimental method shall not'be placed cJn the placement.
' 6.5.2 When it is necessary to dishssemble conveying equipment over the
~
placement and the concrete would fall in ' excess of 5'-0","the a rea i
shall be covered with plywood or other suitable material to catch the concrete and prevent it from falling into the placement.
. Concrete that has fallen in excess of 5'-0" or handled in any other detrimental method or that cannot be placed in the allowed time limit shall be removed from the placement area and discarded.
7.0 PLACING
.~
-I 7.1 Obtain Engineer review of equipment, layout, procedures $nd methods, prior to placing concrete.
7.2 Discharge concrete from mixer into center of bucket or hopper.
This principle of vertical discharge shall be used during all stages of de l i ve ry.
7.3 Deposit concrete as near as practicable to -Its final location.
When j
,.dirsct placement..!s not possible, use suitable chutes and " elephant trunks" to confine concrete movemen't. 'Do not allow concrete to flow in a manner that will cause segregation.
l 7.4
-Use a central-bottom-dump bucket that-provides positive regulation of amount and rate of deposit in all dumping positions.
7.5 When placing concrete with bucket, spot bucket over exact location, then lower to just clear the concrete already in place, with bucket open.
The unconfined height must not be more than five feet unless approve'd by the Engineer.
Do not dump buckets while swinging or in any manner that will cause separation or disturb previously placed concretc.
FORM 140 1127 nG Jord ~ia L
N 9
C.k J.A. JONES CONSTRUCTION COMPANY
. PA'IE 4 0F 13 PflOCFDURE NO.
CONSTRt[CTIONWORKPROCEDURE
~
W-FP-7 l
?
TITLE OF PROCEDURE:
Issue Date:
CONCRETE PLACING, CURING, FINISHING AND REPAIRS 11-24-75 PROJECT TITLE.
Rev. No. & Date:
WATERFORD SES UNIT NO. #'
CONTRACT NO. W3-NY-4 20 7-18-78 R-8 7.6 Concrete shall be placed at'a low rate to provide suffic'ient' time to l
consolidate concrete by vibration. Take care to place concrete and
-vibrate it as it approaches the bottom of blockouts, penetrations, embeds, etc. to prevent building up on sides and failing to fill voids underneath.
Provide ad. equate supervision to assure the proper steps are taken to avoid problems encountered in placing, concrete in restric-ted and confined areas.
R-1 7.7 Slope on chutes shall not be flatter than-1 to 3 and not steeper than 1 to 2.
R-1 7.8 Aluminum or galvanized steel pipe will not be used to convey concrete.
R-1 7.9 Obtain Engineer inspection of ' cleanliness prior to placing concrete.
7.10 Remove all surface water from forms, embeds, resteel, and adjoining
-c.on c re t e.
No concrete will be placed on a ' water covered surface.
7.11 Place concrete in successive 6 to 20 inch thick horizoni:a1 layers.
Correct tendency to segregate by shoveling stones into mortar.
7.12-Bedding planes shall be approximately horizontal, except in dams or other structures where it may be required to incline.the beds. Without
. forms, on a downward slope of about one vertical to ten horizontal in an upstream direction in which case the placement shall proceed in an l
upslope direction.
i 7.13 Compact concrete with mechanical vibrating equipment until the concrete has been consolidated to the maximum density, free of pockets or coarse aggregate, and fits tight against forms and embed material.
R-6
- - 7.1-3[1. Os'e vib7ators of th high-frequency type with not less than 6000 revolutions per mintue, to properly consolidate the concrete.
See Appendix D.
7.13.2 Insert vibrators approximately every 2 feet in the vertical position.
Remove vibrator sTowly to avoid creating pockets.
l Do not use vibrators to transport the concrete.
7.13.3 Use vibrators to blend and meld new layer with previously placed layer.
Care must be taken to assure adequate. vibra-tion.
s i
TORM fJn 11?? (N JUfJI */4
9 3,
J.A. JONES CONSTRUCTION COMPANY PAGE 5 0F 13 PROCEDURE NO.
J CONSTRUCTION WORK PROCEDURE W-WP-7 l
TITLE OF PROCEDURE:
Issue Date:
CONCRETE PLACING, CURING, FINISHING AND REPAIRS 11-24-75 PROJECT TITLE:
Rev. No. & Date:
WATERFORD SES UNIT NO. 3 CONTRACT NO. W3-NY 20 7-18-78 7.13.4 Insure vibrator penetrates the layer hing placed and also the layer below while it is still plast!: t o provide good bond between the two layers and prevent the formation of cold joints.
R-5' 7.13.4.1 Sho"uld the placement of concrete to be curtailed
~
for any reason or if the placing gets cut of se-quence, the minimum thickness requirements for successive borizontal layers in Par. 7.11 no longer apply.
Keep the entire. exposed surface
.not topped out, covered with fresh horizontal layers of concrete as thick as the supply will allow and keep vibrated.
~
R-5 7.13.4.2 If the possibility of a' cold joint exists, test the surface with a blunt end rod.
If the rod can be inserted into the concrete only 2 or 3 inches, test the concrete by the method described in Par.
3.4 above., By 'this method, i f-it is detennined that a cold joint exists, stop work inrnediately in area of. cold joint.
R-5 7..I'3.4.'3 ' If' after work stoppage in placement, concrete is so green that I.t can readily 'be dug out with a hand pick, then no treatment shall be required, provided any laitance is removed, the surface roughened, loose material removed and the surfaces are kept moi st ; the concrete shali be placed against the surfaces a'nd thoroughly and systematically vibrated over the concrete area adjacent to the older con-crete.
R-5 7.13.4.4 in placements, when' the concrete is not green, as described in the preceeding paragraph, the surface shall b'e roughened and cleaned of any laitance and loose material, and coated with Sika-Hi-Mod Epoxy or approved equal and the fresh concrete thoroughly vibrated beside the affected area.
In all cases where epoxy i.s used, the manufacturer's Instructions particularly as regards time limits, shall be
- followed, in all cases, surfaces shall be kept moist after cleanir.g until concrete is placed.
ront.steo ::;'.> oi.; urn. t4
JI. JONES CONSTRUCTION CO.MPANY
. PAG'E 6 0F 13 PROCEDURE NO.
l CONSTRUCTION WORK PROCEDURE V-WP-7 I
Issue Date:
TITLE OF PROCEDURE:
CONCRETE PLACING, CURING, FINISHING AND REPAIRS 11-24-75 PROJECT TITLE:
Rev. No. & Date:
WATERFORD SES UNIT NO. 3 CONTRACT NO. W3-NY-4 20 7-18-78 1
7.13.5
. Care must be taken to minimize contact between vibrator and reinforcing steel.
Do not allow vibrator to contact rein-forcing steel extending out of concrete that has reached a stage of initial set, within five feet of the concrete.
Do not allow contact with forms of finished surfaces.
7.13.6 Obtain Engineer approval before using any form' attached v i b ra tors.
~
7.13.7 Obtain Engineer approval prior to using any surface vibrators.
J.13.8 All areas of stone pockets and mortar pondage is unacceptable.
These areas shall be removed and replaced as directed by the Engineer.
7.14 Install horizontal and vertica.i construction joints as shown and de-talled en the approved construction drawings. ~
~
l t-1 7.15 Remove wash water ln manner to prevent it frcrn running down and stain-Ing exposed faces.
Should staining, occur, it,shall be removed.
7.16 in multiple ' lift pla' cement, allow each placement to set 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or
'onger if required by Engineer before placing next lift.
The interval l
-may be shortened by the Engineer for certain locations.
8.0 CURING 8.1 Cure concrete by using water applied continuo' sly to all exposed u
concrete.
1 I R-13 8.2 Assure ample water Supply for continuous fine-mist spraying or sprinkling.
t, R-19 8.3 Certification for water, if required, will be^ the responsibility of the Engineer and should meet requirements in Paragraph,3.1 of this
-p rocedu re.
8.4 If water during cannot be used, obtain Engineer approval of alternate method.
Other methods are covering with mulch, curing compounds and ponding as outlined in Reference 4.1.
l 1
l l
FORM PJO 1122 Cc Arar 74
(,,
2:
J.A. JONES CONSTRUCTICW CCMPANY
- PAGE 7 0F 13 PROCEDURE NO.
CONSTRECTIONWORKPROCEDURE
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~
W-WP-7 TITLE OF PROCEDURE:
Issue Date:
CONCRETE PLACING, CURING, FINISHING AND REPAIRS 11-24-75 PROJECT TITLE:
Rev. No. & Date:
WATERFORD SES UNIT NO. 3 CONTRACT NO. W3-NY-4 20 7-18-78
- - l 8.5 The concrete shall be kept above 50 degrees F in a moist condition for at least the first seven days after placing, except as follows:
8.5.1 High-early concreth shall be cured for at least the first three days other period may be used if approved by Engineer.
852 Concrete containing po.:.olon shall be for not less than 14' days, t-13 8.5.3 For curing during " hot" and." cold" weather conditions refer to Section 13.
8.6 All equipment required for curing shall be~ on hand', checked out and ready for use prior to placing concrete.
8.7 Fresh concrete shall be pro Scted by leaving forms in place as required.
Assure against disturbing by shock, vibration and premature stressing t.ntil the concrete has attained sufficient strength to sustain the load.
~
8.8 instruct each worker in the importance of not disturbing green concrete during its setting period. Worker with duties on freshly placed con-crete slabs shall wear wooden " slats" approximately 8 x 18 inches.
1 l
9.0 REPA IR
' Unsatisfactory concrete shall be cut out and replaced with new concrete as
,soon as practicable af ter removal of forms.
9.1 Provide. anchors, keys or dovetail slots by grinding and chipping to hold new material securely in place.
9.2 Method of repair, matching of color, cur,ing and Engineer approval shall
- be 9e'rforrned per. Reference -4.1.
t-13 9.3 The method of repair for all defective areas in concrete more than one cubic ' yard after stripping of forms, shall be detailed step-by-step on Concrete Pour Plan, Appendix C, and accompanied with a sketch, if required, to completely cover the method of repair and curing to meet the specification requirements.
10.0 FINISHING FORMED SURFACES 10.1 No finishing is required for formed
- surfaces against which backfill or concrete is to be placed, except repair of defective areas and filling of holcs left by form tics and rods.
e FORM NO 1122 06 JUNL 74
1 J.A. JONES CONSTi1UCTI'ON COMPANY
- PAdE80F13 PROCEDURE NO.
CONSTRUCTION WORK PROCEDURE W-WP-7 l Issue Date:
TITt.E OF PROCEDURE:
CONCRETE PLACING, CURING, FINISHING AND REPAIRS 11-24-75 i
Rev. No. & Date:
PROJECT TITLE:
WATERFORD SES UNIT NO. 3 CONTRACT NO. W3-NY-4 20 7-18-78 10.2 Surfaces below grade which will receive waterproofing shall be free of Irregularities which would int.erfere with proper application of the waterproofing material.
10.3 Surfaces which will be, exposed when structure is in service will re-ceive no special finish.
Repair -damaged or defective concrete, remove fins h' in height, and abrupt irregularities, fill holes left by form ties and rods.
11.0 FINISHING UNFORMED SURFACES 11.1 Surfaces exposed to the weather whl'ch 'the approved con'struction draw-Ings do not specify a horizontal surface or slope required shall be as follows:
l'1.1.1 Tops of narrow surfaces, such as stair treads, walls, cu'rbs
. and parapets shall be sloped approximately 3/8"'per foot of width.
\\
11.1.2 Broad surfaces, such as walks, roads, parking areas and plat-forms shall be sloped appro'ximately M' per foot of width.
]
11.2 Screed and level' ail surfaces to be covered by backfill or concrete,
~
subfloors to be covered with concrete topping, terrazzo or quarry tile and similar surfaces.
Surface Irregularities shall not exceed I
t' higher or lower f rom the specified surfaces.
I 11.3 Surfaces that will not be cover'ed by backfill, concrete or tile topping shall be consolidated, screeded and floated.
Perform floating by hand or machine. Assure surface is free from screed marks or other imper-fections and that surface is uniform in texture.
Tool joints and edges as shown on the approved construction drawings.
11.4 Surfaces subjected to moderate or high velocities or water shall be screed to correct shape req'uired by approved construction drawings, then floated with wood floats to secure a firm, uniform texture without raising excess fine material to the surface. When surface has hardened sufficiently, it shall be brought.to a uniform smoothness by using a steel trowel.
Steel tr~.<el with.a firm pressure to flatten the sandy ense, uniform surface free from trowel marks.
texture and leavo e,
'n -..
N4 b
J.A. JONES CONSTRUCTION COMPANY
.PAGE 9 0F 13 PROCEDURE NO.
CONSTRUCTION WORK PROCEDURE V-WP-7 TITLE Of PROCEDURE:
Issue Date:
L CONCRETE Pt. ACING, C URING, FINISHING AND REPAIRS 11-24-75 PROJECT TITLE.
Pev. No. & Date:
WATERFORD SES UNIT NO. 3 CONTRACT NO. W3-NY-4 20 7-18-78 11.5 All concrete shall be protected against damage until fliial a'cceptance by the Engineer.
1-1 11.6 Use special care in the firiishing 'of floor areas of offices, shops, assembly rooms and other areas where appearance is important.
Special floor finishes shall be in accordance with Reference 4.1.
12,0 FORMS All forms shall be built true to slopes, lines and dimensions. The~y shall be properly tied and braced to maintain correct position and shape until removed.
12.1 Form design and materials shall be subject to the-Engineer's review.
12.2 Form oils shall be approved.by the Engineer and applied per Ref. 4.1.
12.3 Chamfers and fillets shall be Installed per the approve'd cor.struction
~
draw-ing and Ref. 4.1.
12.4 Forms shall remain in place for time specified in Ref. 4.i.
1-G 12.5-Forms for placement dhich do not. provide adequate space for personnel-access due to size or congestion of resteel, blockouts or embeds shall l
be erected to allow leaving out panels which will provide access for vibration and inspection.
Sufficient light shall be provided inside forms to allow construction forces to see what they are.doing and also allow inspection to observe the work and assure adequate consolidation of the concrete and filling of all voids.
1-6 13.0 ADVERSE VEATHER CONDITIONS t-12
- 13.1 Ra in Pr,ocedure I r F,'
Based on the forecast received from the weather forecasting service t
l received each day, precautions shall be taken per the following procedure.
t-12 13.1.1 Wa lls and 'La rge Equipment Foundations.
t-16 When the rain forecast is greater than 20%, a suitable support t-17 system shall be installed and polyethylene available at the placement for imediate cov'ering in case of rain prior to starting placement.
When the rain forecast is greater than 60%, the polyethylene covering shall be installed prior to starting the placement, or the placement may be.ldelayed.
As directed by Ebcsco Services, Inc., Letter //F-18123, cated July 21, 1977.
FOftM NO 1122 OG JUNC '74
e_.'
s
' J.A. JONES CONSTRUCTION COMPANY
. PAGF 10 0F 13 PROCEDURE NO.
CONSTRUCTION WORK PROCEDURE t.'
W-WP-7 TITLE OF PROCEDURE:
Issue Date:
F CONCRETE PL4CING, CURING, FINISHING AND REPAIRS 11-24-75 Rev. No. & Date:
PROJECT TITLE:
WATERFORD SES UNIT NO. 3 CONTRACT NO. V3-NY-4 20 7-18-78 l
lt-12 13.1.2 Columns, Small Surface Areas and Equipment Foundations.
t-16
..When the rain forecast' is greater than 20%, a suitable support
~
t-l 'y
- system shall be installed prior to starting the p: -.ement and
. polyethylene shall be available at the placement for immediate muse as covering in case of rain.
t-12 13.1.3' Floor and Roof Slabs and other Large Surface Area P,lacements VWhen.the forecast is for rain during the scheduled placement time, prefabricated rain sheds with polyeth'ylene curtains
-17 sattached shall be within the reach of a suitable crane for
.immediate covering of the placement. Rolled polyethylene Shall be available at the placement for surface covering any
.~ area which the surface finish has. been completed.
-18 1/ hen the ' rain forecast is greater. than 50%, the prefabricated crain sheds with polyethylene curtains shall be installed to l
, ' cover the starting area of the placement. The sheds shall be
.anoved as the placement proceeds.
The surface of any finished
.. area shall be covered with rolled polyethylene prior to moving shed during rain.,
13.1.4 in case rain occurs during any placement 'and the quality of the concrete cannot be controlled due to the intrusion of rain agater, the concrete placement shall be discontinued and the
~
surface prepared in accordance with Reference 4.1.
13.1.5 Concrete placed during rain shall be placed ~in steps in accor-dance with approved pour, plan, pushing the collected water
-ahead, of placement until water can be removed by vacuum or
(
. pump. Any concrete shcwing segregation or rock pockets shall be removed.
[
t-11 13.2 Cold Weathe'r Procedure H 3. 2.1 When cold weather conditions,'as defined in Par. 3.3, are in effect, no cencrete shall be placed until provisions have been anade to maintain the ambient temperature around the placement at a minimum of 45 degrees F during placement and unti.1 green cutting is complete and curing compound has been applied.or
. other approved means of curing has been started, and concrete surface is protected to maintain a surface temperature of
" minimum $0 degrees F.
)
s FORM fiO 1122 DC JUNE '74
JI. JONES CONST,RUCTION COMPANY
- PAGE 11 0F 13 PROCEDURE NO.
CONSTRUCTION WORK PROCEDURE W-WP-7 TITLE OF PROCEDURE:
Issue Date:
CONCRETE PLACING, CURING, FINISHING AND REPAIRS 11-24-75 PROJECT TITLE:
Rev. No. & Date:
WATERFORD SES UNIT NO. 3 CONTRACT NO 'W3-NY-4 20 7-18-78 13.2.2 The concrete shall be protected to maintain a concrete surface temperature of a minimum of 50 degrees F for the first seven (7) days after plac'ement and at a minimum of 45 degrees F for an additional three (3) days. The surface may be protected by any fire resistant non-staining insulating material.
Forming material may be used for the insulating material. The chart, Appendix E, shall be used to determine the concrete surface temperature of various thickness and at different ainblent temperatures. The. chart may be projected and interpolated as required.
if the stripping of forms and bulkheads are prior to the required ten (10) day period and the differential tem-perature between the concrete surface and. ambient temperature is more than 25 degrees F, the stripped area shall be protected in a reasonable period of time. This time is not to exceed
.four (4) hours.
13.2.3 At any time during the required ter$ (I ) day period the heat
.prdduced by hydration cannot be entrapped by the insulating material to maintain the required concrete surface temperature then the ambient temperature must be raised by applying heat as required.
Core shall be taken when applying heat not to cause
" hot spots"'on.the concrete.
Heat shall be diffused by using circulating blowers, baffels, etc. as required.
-14 13.3 Hot Weather Procedur.e
}-
13.3.1 " Hot weather conditions shall be considered to be in effect whenever the dry bulb temperature is above 85 degrees F and is expected to go higher".
(LOU-1564.472 8.1) 13.3.2 S LABS Mass
- concrete slabs will be, cured.with water. ' Placing will be completed as soon as possi61e and within the limits of
.the specification.
-15 13.3.3 WALLS Mass concrete walls abon the slab will.be cured with water ponded on top of the wails. Wall. forms will be left in place for the normal curing period. However, if the necessary arises to strip the walls before the normal curing period, they will be cured with wet burlap. Vertical bulkheads in walls, when stripped prior to normal cure time,. will be cured with wet burlap. The heights of lifts in hot weather will be.
_ controlled, as necessary, to avoid any initial o,r premature set.
Form shebolts should be loosened to allow _ curing water to run down the inside of the forms.
FOnM NO 1122 OG JUlJE '74
J.A.JON S CONSTRUCTION COMPANY
- PAGE 12 0F 13 PROCEDURE NO.
CONSTRUCTION WGP.K PROCEDURE W-WP-7
~
issue Date:
TITLE OF PROCEDURE:
CONCRETE PLACING, CURING, FINISHING AND REPA' IRS 11-24-75 PROJECT TITLE:
Rev. No. & Date:
WATERFORD SES UNIT N0. 3 CONTRACT NO. W3-NY-4 20 7_;g_78 13.3.4 Walls, slabs and foundations below existing slabs will be cured with curing compound.
g.15 14.0 DOCUMENTATION All Engineer approvals shall 'be obtained and become a part of the final hent record package and be turned oveir to the Engineer a,f ter each pour,is completed.
R-20 14.1 All work relating to each pour shall be completed, checked and
. approved prior to placement of concrete. The J. A. Jones " Coo-crete Pre-Placement Checklist Record', Appendix A, shall be completed for each pour. The J. A. Jones " Concrete Pre-Placement 1-Check 11st Record' shall be prepared by the Area Engineer or his
- i. Des,lgnee giving the pour number, building location and
.: 4ctua1 pour date. As each item of work is completed, the Field Superintendent shall sign off by the work activity in-
...cluding the date, time and drawing including the revision the
-work was performed by.
The Jones' Field Engineer shall check each work item and sign off by the work activity including the date, time, drawing and revision used to make the check.
If
-errors are found, the Jones' Field Engineer shall not sign of f
-until they have been corrected and checked.
The Jones' quality Verification inspector shall verify.that the work has been completed and checked.
He then shall sign off including the date, time, drawing and revision used for the verification.
All applicable blocks shall be completed. All other blocks shall be marked N/A. When all work, ched ing and verification
_ has been completed, the Area Superintendix and the Area Quality
'-~,
d Verification Supervisor shall sign off a..
Jate in the space
.'p rov i ded.
'14.2 'When the pour has been completed, the actual pour date shall be placed in spece provided and J. A. Jones' " Concrete Pre-Placement Checklist Record' shall become a part of the final document record package.
J TOnu Q lin UG JUNL 74
Q
. %- s
/
JI. JONES CONSTi1VCTION. COMPANY MGE 13 0F 13 PROCEDURE NO.
W-WP-7 H
CONSTRUCTICH WORK PROCEDURE lssue Dam TITLE OF PHOCEDURE:
l l
CONCRETE PLACING, CURING, FINISHING AND REPA TRS 11-24-75 Rev. No. & Date:
' PROJECT TITLE:
WATERFORD SES UNIT NO. 3 CONTRACT NO. W3-NY-4 20 7-16-78 14.3 After the Area Superintendent and quality Verification Super-visor has signed of f the J. A. Jones " Concrete Pre-Placement Chedklist Record' verifying that Jones is ready to place concrete, the J. A. Jones quality Verification Supe.rvisor sh'all be authorized to sign off the Ehasco " Concrete Pre-Pla'ceh.1ent. Checkl.ist Record", Form QCIP-6-1, Appendix B, in
. contractor
- column Ind.icating J. 4.' Jones is rhady to place
~
concret'e,
..,.s.
~..... -
,14.4 Af ter all required s'ignatures have been s'ecured and,the pour' Is
.a'pproved for, concret.e placement, J. A.. Jones. sha * : be provided
,a copy,of the Ebasco." Concrete Pre-Pf 5cernent Che'cklist Record'
~
and it shall* become.a.part, of the fina.1. document record. package which will be turned over 'to the En_gineer af ter.the placement.
n
.,...c'
' * *. ~ ~
15.0 APPENDIX
,,'Cdncr'ete Pre-Placement Checklist R'ecord" 15.1',." Appendix
~
s
.-15.2 - Appendix B,'" Concrete PrehP,la' cement Checkilst Record", Ebasco's
~
- /
Form QC.lP-6-1
.. ~, -
A pp..:..endix C; " Con, crete Pour ' Plan"
~
.15.3 15.4 Appendix D,."VI,bratin'g' Schedule" t
15.5 Appendix E, "Concret'e Surface Temperatuie Chart",
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-4,'
REVISION 20 -
"Y
[
7-I8-78 V-WP-7 Appendix A o
BUILDlHG J. A. J0NES CONSTRUCTitG COMPANY P.%:: NO.
iMTERFORD UNIT NO. 3 E:. EV.
ACTUAL POUR LATE
(
CONCRETE PRE PLACfMENT CHECMll5T RECORD
- )
t ~ t N'
C0iPLETED A fl 0 iN$PECTCD J. A, J0ffES SUPERVl$10N J
A. J0NE$ Ef4GINEER QUALITY VERiflCATION RDlARK$
Name D3 Time Per Dwe & Rev Name
, OAj Time Per Dwe's Rev Name Date Time Per DW & Rev I
- 1. CO?lCRETE l
- e. Sandblast b Greencut
- c. Treatment I
- 7. FO'Ot$
~
a._ Dieension I
- b. Line & Gr4.Je
- c. Clean
)
- d. Tiobt
.e.
Oraced I. Cent ing q.
Chr fer Strips
.e
- h. Key W3ys
- 1. Sleck Outs J. bhalers &
St renc%cks 1
L
( <}
- k. Waterstop
, l
- l. Relesse Aatnt I
- 3. EE It40& C l*;G
!i
- 4. Par O m titles I
b: Soaclan i
- t. Elevation
- d. fr 6 cid rtapping 4
E!'!I O S y
J.
Cisan t i t y
.b. Line & Gra.fe
- c. Elevation d.
Identification Sr., G t t;E ru t.
n.
Cleanliness b.
Instrumentation i 't c, W'sther Protection e
. s I
l APPROVED AREA SUPERINTENDDIT DATI APPR'0VED Q. V. SUPERVISOR DATE
P-
- 4 q.
g-
.u WATERFOR'J STEAM ELECTRIC STATION
~
1980 - 1165 MW INSTALIATION - UNIT NO. 3 CONCPITE lf!EPLACE!ENT Ci!ECKLIST RECORD Location:
Elc,vation:
to Placement No. _ _
Decalled
Description:
CCHTRACTOR INSPECTOR 7g Time Date Int.
Time Date Int.
Sendblast/Crer.ncut/ Foundation Treatment Fer=s (Line and Grade)
Blockouts, Kevs, Waterstop, etc.
Rtinforcint Steel
. Anchor Bolts, Embedded.eteel Electrical Machanical Final Clean-ue Remarks:
.--' af Approved for Placing Time Date >
Contractor's Representative Approved for Placing,
Time Date
-18 Ebasco's Engineering s
(See Reverse Side for Instructions)
QCIP-6-1 (11-29-75)
Appendix B
APPENDIX C
~ ' '[7
~
[,..,.,,,*..'
JONES CONSTRUCTION COMPANY' ;
~ i"#
WATERFORD SCS U TIT NO. 3,
CONCREIE POUR ?IAN I
POURh:0.
ELEY.
TO EST. CUBIC YAEDS IDCATION DATE PREPAPID PLACING PROCEDURE:
TOTAL C.Y.
BATCH LOAD RAIE OF DELIVIKY PLACING EQUIPMENT:
STANDBY:
J I
VIERAIORS:
STANDBY:
EOPPERS, TREMIES:
FINISH REQUIRED:
CURING PROCEDURI:
af c
PANPOWER:
STANDBY:
l
(
Field Engineer Arca Superintendent
.1 Quality Assurance t
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___.__--_._.__,__,_._.,,m-
lo-
..,,:,'... e..
J
- .*. i n ?
APPEND 4X 0
/
J. A. JONES CONSTRUCTION COMPANY
- f..
WATERFORD SES UNIT NO. 3 JOB # 75-317 VIBRATl NG SCHEDULE
. RATINGS OF VIBRATORS BY CUBIC YARDS PER HOUR AS SPECIFIED BY MANUFACTURER.
RATINGS IN C.Y./ HOUR ACCORDING TO TIME VlBRATORS IN USE-TYPE VIRRATOR 1004
/5%
- 507, 2 5,;,
E l 3/4" Electric 18.0 13.5
-9.0 4.5 1.7/8" Air 20.0 15.0 10.0 5.0 2 1/2" Ai r 40.0 30.0 20.0 10.0 2 3/8" Electric 35.0 26.3 17.5 6.3
. 3 1/2" Ai r 40.0
.30.0 20.0 10.'o Jf
..,%.,3 j
?.~, f.
.,. j NOTE:
Required number and type of vibrators to be detensined by field
-depending on peur rate and percentage of time used.
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WQC-106-1
~
CONCRETE INSPECTION REPORT DATE PIACDG2rr No.
BLDC.
ELEV.
INSPECTOR (S)
SIGNAIVRE(3),
PRE-PLACBENT EOUTPMDC INSPECTIONAcce.rf PJTECT. N/A i
ACT1v n i CONCRETE EquirMENT e rAN FUMPS/cuutES - MORTAR TIGHT SLOPES m CEUTES-3ETWEEN 1 TO 3 AND 1 TO 2, VERI. TO HOR 2.
FREE FALL-RESTRILir.u TO 5 :::.1 VIERATORS - IN POUR.APEA 9ACR-UP EOUI?MER - AVAILABLE RAIN PRO ~ECTION - AVAILABLE l
CONCRETE PIACEENT INSPECTICN REPORT ACCEPT REJ ECT N/A ACTIvui USE RE7EPif DISCEARGE SIDE
~
FOR~
VERIICAL FREE FALL COTdENT!
l LIFTS CONSCLIDATION FIERATORS - 6,000 R.P.M.'S
~ ~ ' '
CONCRETE FINISH CURING LOG FDAM5 f)p1 y TTPE OF CORE 3rAtP/ED n n v s.
CURING DATE' TIME CURING-TDe'.
AMBIET TEMP.
ACCE?rABLE
_ ~ INSPECTOR r
w G
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o UNITED STATES
['
(
NUCLEAR REGULATORY COMMISSION
,e, E WASHINGTON, D. C. 20555 a
'%*****l May 30, 1979 Sheldon J. Wolfe, Esq., Chairman Dr. Harry Foreman, Director Atomic Safety and Licensing Board Box 395, Mayo U.S. Nuclear Regulatory Commission University of Minnesota Washington, DC 20555 Minneapolis, MN 55455 Dr. Walter H. Jordan 881 West Outer Drive Oak Ridge, TN 37830
'I In the Matter of Louisiana Power & Light Company (Waterford Steam Electric Station, Unit 3)
Docket No. 50-382 Centlemen:
At the April 26, 1979 Special Prehearing Conference, this Board requested the NRC Staff to advise it whether the NRC had investigated the matter reported in the April 3,1979 New Orleans " States Item" regarding defects in concrete work at Wcterford, Unit 3 (Tr. 106).
The NRC's Office of Inspection and Enforcement has investigated this matter as indicated in the enclosed memorandum dat9d April 4,1979 and concluded that the concerns are baseless.
Since ely, f
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Hen J.' NcCurren Counsel for NRC Staff
Enclosure:
As stated
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- :,ocket No. 50-382
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MEBORANDUM FOR: File OA h;9 THRU:
W. C.'Seidle, Chief. RC&ES Branch FROM:
R. E. Hall, Chief Engineering Support Section 7
SUBJECT:
NEWSPAPER ARTICLE REGARDING WATERFORD, UNIT 3 DN 50-382 Pursuant to your request, I contacted the author of the enclosed news-paper article regarding the " allegation" contained in the third colu::m.
Mr. Jim Amoss (504 586-3560) is a staff writer for the New Orleans States Item, the New Orleans afternoon paper. After identifying myself to him, he indicated that he had no further infomation than that pre-sented in the article.. The three concrete workers he talked to were working on the Intake Structure, a nonsafety related structurei but did say their connants also were applicable to prior work on the plant proper. He did not know if they were J. A. Jones or Bob Bros. workers.
Only J. A. Jones did safety related work at Waterford, Unit 3.
I tried to impress upon him how important it is to obtain sufficient specifics to pennit pursuit of all allegations; and that if he does i
get allegations, we would follow to completion any he relayed to us.
L His noral obligation to help assure the safety of the Waterford, Unit 3 facility was stressed, as were our statutory obligations. He was given the RIV telephone number should further items be brought to his attention. The haterford, Unit 3 NCR process' was also explained to i
him.
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File 382 April 4.1979 Based on the vagueness of the allegation and the reported ecployees relationship to previous safety related work activities, it is not-considered practical to pursue this matter further.
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u R. E. Hall, Chief Engineering Support Section
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Enclosure:
Hews article - flew Orleans States Item. April 3.1979 i
cc:
W. A. Crossman R. C. Stewart 4
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s UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION Before the Atomic Safety and Licensing Board In the Matter of
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LOUISIANA POWER & LIGHT COMPANY
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Docket No. 50-382
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(Waterford Steam Electric
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Station, Unit 3)
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ORDER Louisiana Power & Light Company
(" Applicant") has moved pursuant to 10 C.F.R.
S 2.749 for summary disposition of Joint Intervenors' Contention 22, which alleges:
22.
Applicant has failed to discover, acknowledge, report or remedy defects in safety related concrete construction.
Having considered the papers filed in support of Applicant's motion, including the affidavit of Applicant's Quality Assurance Manager, Thomas F.
Gerrets, and the papers filed in opposition to the motion by Joint Intervenors, the Board concludes that there is no genuine issue as to any fact material to Contention 22 and that Applicant i
I is entitled to a decision as a matter of law.
Accordingly, Applicant's motion is granted, and Joint Intervenors' Contention 22 l
l is hereby dismissed with prejudice.
FOR THE ATOMIC SAFETY AND LICENSING BOARD t
Sheldon J. Wolfe, Esq.
Chairman DATED:
e UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION Before the Atomic Safety and Licensing Board In the Matter of
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LOUISIANA POWER & LIGHT COMPANY
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Docket No. 50-382
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(Waterford Steam Electric
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Station, Unit 3)
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CERTIFICATE OF SERVICE I hereby certify that true copies of " Applicant's Motion For Summary Disposition Of Joint Intervenors' Contention 22 4
(Safety-Related Concrete),"
Brief in Support of Applicant's Motion For Summary Disposition Of Joint Intervenors' Contention 22 (Safety-Related Concrete)," " Applicant's Statement Of Material Facts Relating To Joint Intervenors' Contention 22 (Safety-Related Concrete)," and " Affidavit of Thomas F. Gerrets" with exhibits, were served this 21st day of August, 1981, by Jnited States mail, postage prepaid, upon those persons on the attached Service List.
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\\ James B'.
Hamlin u
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O UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION Before the Atomic Safety and Licensing Board In the Matter of
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LOUISIANA POWER & LIGHT COMPANY
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Docket No. 50-382
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(Waterford Steam Electric
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Station, Unit 3)
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SERVICE LIST Sheldon J. Wolfe, Esquire Lyman L. Jones, Jr.,
Esquire Chairman, Atomic Safety and Gillespie & Jones Licensing 3oard Suite 201 U.S. Nuclear Regulatory 1420 Veterans Memorial Boulevard Commission Metairie, Louisiana 70005 Washington, D.C.
20555 Stephen M.
Irvi :g, Esquire Dr. Harry Forenan Louisiana Consumers League, Inc.
Director, Center for 535 No. 6th Street Population Studies Baton Rouge, Louisiana 70802 Box 395, Mayo University of Minnesota Luke B.
Fontana Minneapolis, Minnesota 55455 824 Esplanade Avenue Nsw Orleans, Louisiana 70116 Dr. Walter H. Jordan 881 West Outer Drive Atomic Safety and Licensing Cak Ridge, Tennessee 37830 Board Panel U.S. Nuclear Regulatory Sherwin E. Turk, Esquire Commission Office of the Executive Wcshington, D.C.
20555 Legal Director U.S. Nuclear Regulatory Atomic Safety and Licensing Commission Appesi Board Panel Washington, D.C.
20555 U.S. Nuclear Regulatory Commission Docketing and Service Section (3)
Washington, D.C.
20555 Office of the Secretary U.S. Nuclear Regulatory Commission Washington, D.C.
20555
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