ML20127B972
| ML20127B972 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 11/29/1975 |
| From: | Howard F EBASCO SERVICES, INC. |
| To: | |
| Shared Package | |
| ML17198A241 | List:
|
| References | |
| FOIA-84-455 QCIP-6, NUDOCS 8506220104 | |
| Download: ML20127B972 (12) | |
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,,. EMSCO SERVICT.S INCORPonATED D'
. WATERFORD STEAM ELECTRIC STATION - UNIT NO 3 PROCEDURE FOR: Concrete .Preplacement Inspection PROC. NO. OC TP -6 l
" ISSUE
SUMMARY
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m ISSUE /DATE PREPARED APPROVED -
RDIARKS A/1-25-74 J F Gregory .
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"k "B" Draf t Update of QC 4.0-4 8/22/75 ,
, y, S B/ 9 75 C. Satte #iel' J. O. Booth
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3 m "C" DRAFT F. Howard,
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Renumbered for=s and revised h 10-28-75 form " Concrete Preplacement M
8 C/11-29-75 f24r F. Howard Jo W J. O. Booth Checklist Record".
Revised for= " Concrete Preplace ment Inspection Checklist" 8
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8506220104 850222 FREEt>OM OF ~ INFORM A fl0N '
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PDR FOIA PDR ACT REQUEST GARDE 04-455 ,
-p FORM ASP-III-1-3 (10-13-75) -
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,,' . < . b11ASCOSERVICESINCORPORATED .
NO. QCIP-6 ISSUE: C . WATERFORD STEMI ELECTRIC STATION - UNIT NO 3 PAGE: 1 0F 7
, 1.0 PURPOSE 1.1 This procedure is intended to be instructions for those Quality Control inspection functions which are required before placement of concrete to ensure that a quality product is obtained. , .
e 2.0 SCOPE 2.1 This procedure covers the inspection and check-off of na the condition of the excavation, existing concrete surfaces j against which concrete will be placed3 forms, placing of reinforcing steel,and placing of embedded items prior to final clearance for concrete placement.
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ma' C' 2.2 The degree of inspection by Ebasco is of a surveillance j nature and is not intended to be a total inspection.
Contractors providing safety-related work shall perform 6
o inspection and documentation of that work.
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3.0 REFERENCES
5 E 3.1 Ebasco Specifications LOU 1564.472 - Concete Masonry..
g- 3.2 Ebasco Specifications LOU 1564.473 - Concrete Reinforcing o Steel, Furnishing, Fabrication and Delivery.-
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3.3 Ebasco QCIP-4 e Control of Concrete Materials and Mixes
- 3.4 Ebasco QCIP Receiving Inspection. Storage and Testing of Concrete Reinforcing Steel g
5 3.5 Ebasco QCIP Inspection of Concrete Re'inforcing Steel Q ,
Mechanical Splices (Cadwelds)
E g 4.0 DEFINITIONS S
g C 4.1 none ,
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O, 5.0 RESPONSIBILITY l 5.1 The Quality contrcl Civil Supervisor shall be responsible
, for implemanting the requirements of this procedure.
l 5.1.1 He shall assign Civil Inspectors to monitor field activities of the Contractor who has a QA/QC -
, program.
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4 . l. bASCO SERVICES INCORPORATED . No. QCIP-6 ISSUE: C WATERFORD STEAM ELECTRIC STATION - UNIT NO 3 PAGE: 2 0F 7 5.1.2 He shall assign Civil Inspectors to perform inspection of the work of Contractors who do not have a QA/<QC program.
5.1.3 He shall be responsible for reviewing test reports for acceptance!
5.1.4 He shall'be-responsible for assuring that the inspection results are properly recorded, na 5.1.5 He shall ensure that there are no incomplete -
g discrepancy or nonconformance reports pertaining to the area being prepared for placement of concrete.
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n/ 5.2 The Quality Control Civil Engineer shall .be responsible to provide technical assistance to the Quality Control Civil I> Supervisor.
E o 5.3 The Quality Control Civil Inspector reports to the Quality h
u Control Civil Supervisor and is responsible for the inspection
.of civil items of this procedure.
E g 5.3.1 The Quality Control Civil Inspector shall coordinate 3, with the Field Engineer and with inspectors of other gp disciplines whereas the work is of a specialized nature.
- g. 5.4 The Quality Control Mechanical Inspector shall be responsible g for the inspection of mechanical items o'f this procedure. '
f, 5.5 The Quality Control Welding Inspec' tor shall be responsible for a the inspection of mechanical splices in reinforcing steel and 8 for the inspection of welds on embedded pipe.
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5.6 The Quality Control Electrical Inspector shall be responsible for the inspection of electrical items of this procedure.
H g 5.7 The Field Engineer shall be responsible for checking line and o grade.
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E C, 6.0 PROCEDURE
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6.1 Excavation and Foundation
. ~6.1.1 Dimensional _ Location of Excavation - The Field Engineer shall verify that location of the excavation has been checked.
6.1.2 Elevation of Principal Base Area - The Field Engineer shall verify that the subgrade elevation, drainage slopes, and surface shapes have been checked. . ..
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. ! .,' . bEASCO SET.VICb5 INCCRN1:ATCD _. No. QCIF-6 ISSUE: C . WATEEFORD STTRI EI.EC~RIC . STATION - UNIT N3 3 PACT.: .3 or 7 I
6.1.3 Condition of Soil Ease Preparation - The inspector ;
shall ensure that the surface =aterial co= prised of soil, sand, crushed rock, clanshell,'e:c., is in c
accordance with appli'able drawing and specification requirements for type of =aterial and thickness of layers and is acce'ptible by the Site Soils Engineer.
. 6.1.3.1 Compaction - The inspector shall ensure that in-place density and moisture tests have been accepted by the Site Soils w Engineer to assure required ce=paction A requirements specified in the drawings and 5 specifications. -
E g 6.1.4 Pile Group 1:sta11ation - The Field Engineer shall
,j verify that the locations and cut off elevations
> of the pile group are in accordance with the design I drawings.
13 o 6.1.4.1 Number of Piles - The inspector shall verify hv -
that all piles have been ins:alled in accordance with the drawing requirements.
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- 6.2 Concrete Surfaces k
g 6.2.1 Underlying Concrete Surfaces - The inspecter shall ensure g that concrete surfaces upon which additional concrete vill g be placed are approv%stely. level and have u=1for= straight
.z edges at joint lines.
6.2.2 Surface Preparation - The inspector shall ensure that concrete surfaces have been scarified to expose aggrega:e 8 for approximately 1/4 inch with all laitance, glazed m- mortar, dirt and unsound concrete removed.
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6.2.3 ~ Vertical Construction Joints - The inspector shall ensure E that formed vertical construction joints with keyways ,
e z have been cleaned and laitance removed. ~
o E 6.2.4 We :ist of Concrete Surfaces - The inspector shall ensure
% that existing concrete surfaces have been kept ve: for a E period of two to four hours prior to placing new concrete and that water has been removed frcz depressions.
6.3 Forms .
6.3.1 For= Alignment - The Field Engineer shall verifye form >
alignment is in accordance with the applicable drauings and specifications.
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.. . l . EBASCO' SERVICES INCORPORATED . NO. QCIF-6 ISSUE: C 4 WATERFORD STE/d ELECTRIC STATION - UNIT NO 3 Pact: 4 0F 7 6.3.2 Form Installation - The inspector shall ensure that the form material and method of construction are satisfactory.
6.3.2.1 Bracing and Rigidity - The Field Engineer shall evaluate the integrity of the formwork installation to ensure position and shape during concrete
- . placement.
6.3.2.2 Form Material - Form faces for surfaces that will remain exposed shall be made of metal, plywood, or sized and surfaced lumber or other g approved material.
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6.3.2.3 Tie Rods - Appropriate provisions shall be made g for removing ends at a depth of approximately w
5 one inch from concrete surface. Snap-type form ties with waterstop shall be installed where h specified in the design drawings and specifications, h 6.3.2.4 Tie Wires - Tie wires shall not be exposed in g -concrete surfaces or joints where water may travel, unless approved.
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S 6.3.2.5 Form 011 - Form surfaces shall be clean and oil y treatment made before placement of any w! reinforcement steel adjacent to the forms. Excess y oil on forms and oil on embedments shall be removed.
N g 6.3.2.6 , Chamfers and Fillets - Moldings shall be provided.,
H to produce . chamfers or fillets on all exterior g corners and angles in the exposed structure and 3' on interior corners when specified in the l 8 drawings or by the Engineer.
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6.3.2.7 Vertical Cons'truction Joint Chamfers - On concrete surfaces wh1ch will remain exposed after erection
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g of the structure, the construction joint adges
, shall be trued with a shaped edging strip that j g will provide a slight chamfer at the joint edges. j H i M 6.3.2.8 Form Joints - Joints in-forms shall be horizontal !
or vertical unless otherwise specified and shall be !
h smooth, tight and unyielding. Forms placed against !
existing cone. rete shall be fitted tight without j
gaps and braced to preclud'e bulging and mismatched t
surfaces.
l 6.3.2.9 Rouse of Forms - Used forms shall be repaired to provide smcoth and mortar-tight faces. Faces shall be cleaned and reoiled before the succeeding placement.
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. .. . 1 . EllASCO SERVICES INCORPORATED , NO. QCIP-6 ISSUE: C 4 . WATERFORD STEN 4 ELECTRIC . STATION - UNIT E0 3 PACE: 5 OF 7 i
. 6.3.3 Blockouts - The Field Engineer sha11' verify that all blockouts have been checked for location and elevation.
6.3.3.1 Blockout Dimensions - The inspector shall ensure that blockouts are dimensionally true
. to the drawing requirements.
6.3.4 Preplacement Cleaning of' Forms - The inspector shall ensure that all dirt, wood chips, trash, water, etc.
has been removed and the cleanout opening closures have been emplaced prior to placement of concrete.
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g 6.4 REINFORCEMENT na 6.4.1 Installed Reinforcing Steel. - The inspector shall ensure that the installed reinforcing steel is in h conformance with the specifications and drawings g for grade, size, spacing and location. Chairs or o supports fabricated by welding together extra l g' reinforcing material or structural steel is u ,
acceptable. .
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E! 6.4.2 Tie Wires - The inspector shall ensure that the !
$ reinforcing steel is securely tied with wire to ms! oreclude movement and shiftina durina olacement
, T of concrete.
b3 g' Caution: Th's., inspector shall ensure that no M
welding or tack welding was performed g on reinforcing steel shown on design i drawings as' permanent items.
8 u,. 6.4.3 Minimum Concrete Coverage - The inspector shall ensure g' that, unless otherwise specified in the drawings and H : and specifications, the reinforcing steel within the r
$ forms will permit a minimum two inch overall concrete
,3 coverage with the exlusion of bars that will extend g into adjacent placements.
e-e h 6.4.4 Overlap Splices - The inspector shall verify that the g overlap splice lengths and their locations are in i accordance with the drawing requirements.
6.4.5 Mechanical Splices - The inspector shall ensure that
, splicing of bars are made only at locations shown on
! the drawings. Mechanical splices (Cadweld) will be inspected in accordance with QCI?-9,and the inspector
-shall ensure that all mechanical splices have been accepted prior to placement of concrete.
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,. l . 'EEASCO SERhlCES IhCORPolf TED . No. QCIP-6 ISSUE: C WATERFORD STEM! ELECTRIC STATION - UNIT NO 3 op 7 4 .
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, 6.5_ EMBEDDED ITEMS,
- a. The inspector shall ensure that anchor bolts, drains, pipe sleeves, piping, condult, wiring, flashing, manhole cover l frames, sumps, instruments and all other embedded items )
i- are supported and firmly braced or tied before concrete is placed. Reinforcing steel shall be shifted or bent to clear embedded items. Preparation of contact surfaces depends on whether or not bond with concrete is required in accordance with drawings and specifications.
w b. The Field Engineer shall verify that the location and g elevation setting of all embedments have been checked.
E 6.5.1 Floor Draining Piping - Shall be installed complete
$ with all connections made and drains set to grade, e
n/ slope and elevation requirements as specified in the i
g- applicable drawings.
D 6.5.2 Pressure Piping - Shall be installed complete with o all welded and mechanical connections made in h'
u conformance with applicable codes, specifications and drawing requirements.
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! g; 6.5.3 Electrical Conduit - Shs11 comply with the size.s -
3, and location requirements specified in the drawings, w
- g. 6.5.4 Ground wire - Shall be installed in place as specified
> ** in the drawings.
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6.5.5 Anchor Bolts - Shall be emplaced accurately to the
! . drawina requirements for location, elevation,and aliennent. Anchor bolt threads shall be suitably O. protected to preclude damage during placement of
- ' g *, concrete.
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, : 6.5.6 Embedded Plates - Shall be emplaced as per plan and
"* flat to the placement surface plane.
O U 6.5.7 Pioe Sleeves - Shall be installed with ends of sleeves N set relative to concrete surfaces as specified in k applicable drawings.
. 6.5.8 Penetration Sleeves - Shall be accuratelv located for elevation and aliennent. Open ends shall be enclosed
. with sturdy olywood covers. or ecuivalent, to preclude entry of concrete residue and trash.
l 6.5.9 Expansion and Contraction Joints - Shall be installed ,
as specified on the drawings or in the specifications.
6.5.10 Waterstop - Shall be ins'talled in accordance with drawing requirements. . --
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, . . EBASCO SERVICES INCORPOKATED . No.QCIPk ISSUE: C . WATERFORD STEAM ELECTRIC STATION - UNIT NO 3 PAGC: 7 0F 7 6
i 6.6 Documentation (1 6.6.1 Quality Control Documentation - A document titled Concrete Preplacenent Checklist Record, Form No.
QCIP-6-1, shall be provided by the Quality Control Civil Supervisor. ,This card shall be maintained near the placement to provide a constant status check for concrete placement preparations and is a Quality Control document; it shall be signed by the Quality Control Civil Supervisor when he is satisfied that concrete placement may proceed.
W But, if placement is not made within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, the f Quality Control Civil Supervisor must again satisfy himself that the Quality Control features for that
-h placement have been maintained and must again sign sg the card. .
m l (1 6.6.2 A Concrete Preplacement Inspection Checklist Form No. QCIP-6-2, shall be prepared by the QC E Inspector. Acceptance of applicable items shall be 3" indicated by initials and dates. Items not applicable E shall be denoted by marks in the N/A column. Items
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which are applicable but which were not inspected shall be 6 identified by notation "Not inspected" in the. Remarks column E (1 '6.6.3 The Inspector shall report inspection discrepancies in
- i accordance with ASP-III-ll to the Quality Control
$; Civil Supervisor.
4 5 7.0 ATTACMENTS '
5 E (1 7.1 Forn No. QCIP-6-1, Concrete Preplacement Checklist Record
$- (1 7.2 Form No. QCIP-6-2, Pages 1 of 2 and 2 of 2, Concrete g Preplacement Inspection Checklist W-n: -
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Placement No.
.. WATERFORD STEAM ELECTRIC STATION 1980 - 1165 W INSTALLATION - UNIT NO. 3
- CONCRETE PREPLACEMENT INSFECTION CllECKLIST ITEM DESCRIPTION l
LOCATION ELEVATION TO l
DRAWING NUMBER REV. SPECIFICATION NO. REV. l NOMENCLATURE INT. DATE N/A RDIARKS 6.1 EXCAVATION AND FOUNDATION
.1 Dimensional Location of Excavation
.2 Elevation of Principal Base Area
.3 Condition of Soil Base Preparation i
.4 Pile Group Installation 4
.4.1 Number of Piles 6.2 CONCRETE SURFACES *
.1 Underlying Concrete Surfaces l
t 2 Surface Preparation
.3 Vertical Construction Joints *
.4 Wetting of Concrete Surfaces 6.3 FORMS
! .1 Form Alignment -
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.2 Form Installation
.2.1 Bracing and Rigidity
.2.2 Form Material
.2.3 Tie Rods
.2.4 Tie Wires
.2.5 Form Oil ,
.2.6 Chamfers and Fillets *
.2.7 vertical Const. Joint Chamfers
.2.8 Form Joints .
.2.9 Reuse of Forms Form $lo. QCIP-6-2, Page 1 of 2 (11-21-75) .
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I CONCRETE PREPLACDICIT ZUSPECTION CHECKLIST l 1 o j
, 1 NOMENCLATURE INT. DATE N/A ROIARKS I
6.3.3 Blockouts l
. 1 Blockout Dimensions
- 6.3.4 Preplacement Cleaning of Forms 6.4 REINFORCDID;T
.1 Installed Reinforcing Steel
.2 Tie Wires
.3 Minimum Concrete Coverage
.4 Overlap Splices *
.5 Mechanical Splices 6.5 EMBEDDED ITD'S .
.1 Floor Drain Piping
.2 Pressure Piping a Location b Welding '
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.3 Electrical Conduit
.4 Ground Wire
.5 Anchor Bolts
.6 Embedded Plates
.7 Pipe Sleeves
.8 Penetration Sleeves i:
, .9 Expansion and Contraction Joints .
- .10 Waterstop i - -
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l Fern No. QCIP-6-2. Page 2 of 2 (11-21-75)
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o WATERFORD STEAM ELECTRIC STATION 1980 - 1165 tra' INSTALLATION - UNIT NO. 3 CONCTITE PREPLACEMENT CHECKLIST RECORD 1
Location:
Elevation: to Placement No.
Detailed
Description:
CONTRACTOR INSPECTOR Time Date Int. Time Date Int.
Sandblast /Greeneut/ Foundation Treatment Forms (Line and Grade) .
Blockouts. Keys, Waterstop, etc.
Reinforcing Steel -
Anchor Bolts, E= bedded Steel l Electrical
!ischanicel l
Final Clean-up Remarks:
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Approved for Placing Time Date
- Contractor's Representative.
l' Approved for Placing Time Date l Ebasco's Q.C. Representative
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(See Reverse Sid'e for Instructions)~ ~ ~ " [~
l QCIP-6-1 (11-29-75) .
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. location - Description a$ ro location (Enilding, Structure, Arca etc.)
I.levation - Indicate elevation at start and elevation at finish grade Placement No. - Self T.xplanatory I)etailed Description - Give detailed description. Use any information that would best describe the placement.
Item (Contractor) - This space is provided for the Contractor's Construction Representative to initial, time and date. This signifies that construction is co=plete and that this portion is ready for final inspection.
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. Item (Inspector) - This space is provided for the centractor's QC Inspector to initial, time and date. Lis signifies that this portion has i
been inspected and found to be acceptable. If Contractor does
. mot have a QA/QC prograr, this inspection vill be performed by
. 'Zbasco's QC, Remarks - Enter any remarks pertinent to the placement :
Upproved for Placing - Must have the recuired signatures as indicated prior to
-placement of concrete 4*neral Note - Each space must be completed. If not app; w. e, insert W/A. If no remarks, insert none. .,
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