ML20127C011
| ML20127C011 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 01/21/1976 |
| From: | Howard F EBASCO SERVICES, INC. |
| To: | |
| Shared Package | |
| ML17198A241 | List:
|
| References | |
| FOIA-84-455 QCIP-6, NUDOCS 8506220118 | |
| Download: ML20127C011 (10) | |
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<.. ' . r.. EBASCO SERVICES INCORPORATED
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. WATERFORD STEAM ELECTRIC STATION - UNIT NO 3 PROCEDURE FOR: Concrete Preplacement Inspection PROC. NO. OCTP -6 M ISSUE
SUMMARY
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- m ISSUE /DATE PREPARED APPROVED -
RH4 ARKS N
A/1-25-74 J F Gregory .
4.ukdMk4 "B" Draft
& u^r < dd C Satte field Update of QC 4.0-4 o 8/22/75 x
S B/9 75 h
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Q m "C" DRAFT F. Howard, d[i] [f_ .
[' Ransnber orms and revised h 10-28-75 rg f j- f'o n ."Coser e Preplacement w - chiffst'Racord".
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C/11-29-75 bhF. Howard
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[M*r> / ffnfetin Torde1Itd"theintegrityof" ecklist" 1-14-76 F. Howard l ." d
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$ D/1-21-76 F. How d J. O. Booth ed " evaluate" to " inspect'
. in Par. 6.3.2.1.
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_N 8506220118 850222 D #
FREEDOM OF INFORMATt0N ACT REQUEST
-p . Sq-+Cf FORM ASP-III-1-3 (10-13-75) -
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1 EUASCO SERVICES INCORI'01"*"
D ko. QCIP-6 l ISSUE: WATERFORD STEMt ELECTRIC STATION - UNIT NO 3 PACE: 1 0F 7
, 1.0 PURPOSE 1.'1"This' procedure is intended to be instructions for those l
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Quality Control inspection., functions which are required before placement of concrete to ensure that a quality l
> product is obtained. . .
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I t 2.0 SCOPE
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2.1 This procedure covers the inspection and check-off of na the condition of the excavation, existing concrete surfaces l
3 l against which concrete will be placed, forms, placing of reinforcing ' steel,and placing of embedded itens prior to l final clearance for concrete placement.' ,
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ne' 2.2 The degree of inspection by Ebasco is of a surveillance
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Contractors providing safety-related work shall perform E C'. inspection and documentation of that work. ,
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3.0 REFERENCES
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E 3.1 D asco Specifications LOU 1564.472 - Concete Masonry.
] 3.2 Dasco Specific'ations LOU 1564.473 - Concrete Rainforcing gi / Steel. Furnishing, Fabrication and Delivery.' <
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k 3.3 Dasco QCIP 4 s Control of Concrete Material and Mixes -
3.4 Dasco QCIP Receiving Inspection, Storage and Testing
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sof Concrete Rainforcing Steel 3 i 6 3.5 D asco QCIP Inspection of Concrete Rainforcing Steel ;
l Q Mechanical Splices (Cadwalds) l l g D 3.6..ACI Manual of Concrete Inspection f.
f 4.0 DEFINITIONS g' O
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5.0 RESPONSIBILITY i.
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5.1 The Quality control civil Supervisor shall be responsible :
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for}implementingthe.requirementsofthisprocedure. j j
5.1.1 HeshallassignCiN1Inspectorstomonitorfield j
activities of the Contractor who has a QA/QC <
.' program. .
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EBASCO SERVICES INCORPORATEb . NO. QCIP-6 '
ISSUE: WATERFORD STEMI ELECTRIC STATION - UNIT NO 3 PAGE: . 2 0F 7 4 .
1 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.
to 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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,g 5.2 The Quality Control Civil Engineer s' hall.be responsible to .
provide technical assistance to the Quality Control Civil i I> Supervisor. I m !
o 5.3 The Quality control Civil Inspector reports to the Quality hu Control Civil Supervisor and is responsible for the. inspection
. of civil items of this procedure.
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$ 5.3.1 The Quality Control Civil Inspector shall coordinate.
- m, with the Field Engineer and with inspectors of other g: disciplines whereas the work is of a specialized nature.
d g 5.A The Quality Control Mechanical Inspector shall be responsible g for the inspection ofr mechanical items of this procedure.
. 5.5 The Quality Control Welding Inspector shall be responsible for 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 Qtiality Control Electrical Inspector shall be responsible for the inspection of electrical items of this procedure.
s y 5.7 The Field Engineer shall be responsible for checking line and o grade.
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S- 6.0 PROCEDURE
. . 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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-6.1.3 Condition of Soil Base Preparation - The inspector l shall. ensure that the surface material comprised of l soil, sand, crushed rock, clamshell,'etc.,is in i j- e = accordance with appli' cable drawing and specification i f,' requirements for type of materiak and thickness of j layers and is acce'ptible by , the <
Site Soils Engineer. l
. / 6.1.3.1 Compaction - The inspector shall ensure that in-place density,,and moisture tests have beert accepted by the Site Soils u Engineer to assure required compaction requirements specified in the drawings and g specifications. ~ ,
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g 6.1.4 Pile Group Installation - The Field Engineer shall m
- verify that the locations and cut off elevstions g of the pile group are in acce.rdance with the design
- drawing.s.,
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- 6.1.4.1 Kumber of Piles - The inspector shall verify :
h that all piles have been installed in accordance u .
}withthedrawingrequirements. , '; -
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l 6.2 Concrete Surfaces >
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Mi 6.2.1 Underlying Concrete Surfaces - The inspector shall ensure h% '
(Ant concrete surfaces, upon which additional ccncrete will be placed are:approximately level ami have uniform straight 1 ~ edges at joint lines.
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- 6. :.2 Surface Preparation - The inspector shall ensure that y
concrece-surfaces have been scarified to expose aggregate O for approximately 1/4 inch with all laitance, glazed ,
- g, i ~ 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 1 vr have been cleaned and laitance removed. A 9*
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g, 6.2.4 Wetting of Concrete Nrfaces - The inspector shall ensure that existing 3oncrete surfaces have been kept wet for a g
' !E priod ofj two' to four hours prior to placing new concrete ,
, t ard that water has been removed fros depressions.
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h 6.3 Forms ,
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, , 6. 3.1' FormAlignment-TheFieldEngineershbilserifyform
- ! alignment is in accordance with the applicable drawings
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EBASCO SERVICES INCORP0 HATED . NO. QCIP-6 l ISSUE: WATERFORD STEAM ELECTRIC STATION - UNIT NO 3 PAGE: 4 0F 7 4 .
6.3.2 Form Installation - The inspector shall ensure that the form material and method of construction are satisfactory.
D 6.3.2.1 Bracing and Rigidity - The Field Engineer shall e inspect the formwork installation co ensure l
position and shape during concrete placement.
6.3.2.2 Form Material - Form faces for surfaces that will remain exposed shal'. be made of metal, plywood, or sized and surfaced lumber or other
" approved material.
H g 6.3.2.3 Tie Rods - Appropriate provisions shall be made ,
a for removing ends at a depth of approximately '
" one inch from concrete surface. Snap-type form i ties with waterstop shall be installed where specified in the design drawings and specifications.
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6.3.2.4 Tie Wires - Tie wires shall not be exposed in i
. concrete surfaces or joints whem water may [
u travel, unless approved. j m
S 6.3.2.5 Form Oil - Form surfaces shall be clean and oil y treatment made before placement of any m! reinforcement steel adjacent to the forms. Excess oil on forms and oil on embedments shall be removed.
6.3.2.6 , Chamfers and Fillets - Moldings shall be provided, 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 8 drawings or by the Engineer.
k- 6.3.2.7 Vertical Construction' Joint Chamfers - On concrete H surfaces which will remain exposed after erection g of the structure, the construction joint edges shall be trued with a shaped edging strip that g
will provide a slight chamfer at the joint edges.
.M 6.3.2.8 Form Joints - Joints in forms shall be horizontal
( or. vertical unless otherwise specified and shall be smooth, tight and unyielding. Forms placed against j
- existing concrete shall be fitted tight without gaps and braced to preclude bulging and mismatched surfaces.
6.3.2.9 Reuse of Forms - Used forms.shall be repaired to provide smooth and mortar-tight faces. Faces shall be cleaned and reoiled before the succeeding placement.
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, i. "D . EBASCO SERVICES INCOR1'01 ATED . NO. QCIP-6 !
ISSUE: . WATERFORD STEN 4 ELECTRIC STATION - UNIT NO 3 PACE: 5 0F 7 i 4
' ' ~ 6.3. T Block' outs - The Field Engineer shall 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.
g 6.4 REINFORCEMENT s.a "I 6.4.1 Installed Reinforcing Steel.- The inspector shall 5 ensure that the. installed reinforcing steel is in I conformance with the specifications and drawings g for grade, size, spacing and location. Chairs or o supports fabricated by welding together extra reinforcing material or structural steel is
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o acceptable.
- n S 6.4.2 Tie Wirc.s - The inspector shall ensure that the
$- reinforcina steel is securely tied with wire to io! oreclude movement and shifting during placement of concrete.
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h Caution: The, inspector shall ensure that no welding or tack welding was performed
], on reinforcing steel shown on design 5 drawings as permanent items.
8 m- 6.4.3 Minimum Concrete Coverage - The inspector shall ensure E'
H that, unless otherwise specified in the drawings and and specifications, the reinforcing steel within the i 5 forms will permit a minimum two inch overall concrete
- coverage with the exlusion of bars that will extend m.
@ into adjacent placements.
E i 4 6.4.4 overlap Splices - The inspector shall verify that the h overlap splice lengths and their locations are in 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 QCIP-9,and the inspector shall ensure that all mechanical splices have been accepted prior to placement of concrete.
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D l . EBASCO SERVICES INCORPORATED . NO. QCIP-6 ,
. ISSUE: . WATERFORD STE#1 ELECTRIC STATION - UNIT NO 3 PACE: .6 0F 7
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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 frames, suicps, instruments and all other embedded items are supported and firmly braced or tied before concrete is D placed. Preparation of contact surfaces depends on whether
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or not bond with concrete is required in accordance with drawings and specifications.
no b. The Field Engineer shall verify that the location and
, g elevation setting of all embadments have been checked.
E 6.5.1 Floor Draining Piping - Shall be installed complete !
$ with all connections made and. drains set to grade, se slope and elevation requirements as specified in the d'*"*"*
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l; E 6.5.2 Pressure Piping - Shall be installed complete with .
- g. all welded and mechanical connections made in g conformance with applicable codes, specifications u . and drawing requirements.
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M 6.5.3 Electrical Conduit - Shall comply with the sizes Si -
and location requirements specified in the drawings..
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} h. 6.5.4 Ground wire - Shall be installed in place as specified
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w 6.5.5 Anchor Bolts - Shall be emolaced accurately to the-
, drawina requirements for location, elevation,and aliennent.- Anchor bolt threads shall be suitably
{ O. ' protected to preclude damage during placement of 3l m-concrete.
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, 6.5.6 Embedded Plates - Shall be emplaced as per plan and H flat to the olacement surface plane.
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f ( 6.5.7 Pios Sleeves - Shall be installed with ends of sleeves set relative to concrete surfaces as specified in i
g applicable drawinas.
. .- 6.5.8 Penetration Sleeves - Shall be accuratelv located for elevation and aliennent. Open ends shall be enclosed
. with sturdy olywood covers. or eauivalent, to preclude entry of concrete residue and trash.
6.5.9 Expansion and Contraction Joints - Shall be installed !
., as specified on the drawings or in the specifications. )
l 6.5.10 Waterstop - Shall be installed in accordance with ,
dt!. wing require;nents. .
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!. ISSUE: . WATERFORD STEAM ELECTRIC STATION - UNIT NO 3 PAGC 7 OF 7 i
i 6.6 Documentation ,
6.6.1 Quality Control Documentation - A document titled ;
Concrete Preplacement Checklist Record, Form No.
QCIP-6-1, shall be provided by the Quality Control Civil Supervisor. This card shall be maintained near the pIacement to provide a constant status .i 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.
m 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 Quality Control Civil Supervisor must again satisfy l himself that the Quality Control features for that l
placement have been maintained and must again sign so; the card.
m g 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 indicated by initials and dates. Items not applicable u .
shall be denoted by marks in the N/A column. Items which are applicable but which were not inspected shall be E identified by notation "Not inspected" in the. Remarks column.
4 E 6.6.3 The Inspector shall report inspection discrepancias in accordance with ASP-III-11 to the Quality Control Ni Civil Supervisor.
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. 7.1 Form No. QCIP-6-1, Concrete Preplacement Checklist Record .
7.2 Form No. QCIP-6-2, Pages 1 of 2 and 2 of 2, Concrete
.Preplacemenc Inspection Checklist
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WATERTORD STE.01 ELECTRIC STATICN 1980 - 1165 .%' INSTALLATION - UNIT NO. 3 CONCPITE PREPLACE!!ENT CHECKLIST RECORD Location: ;
- Elevation
- to Placement No. _
i Datailed
Description:
CCNTRACTCR INSPECTOR IE '
Time Date Int. Ti=e Date Int.
Sandblast /Creeneut/Toendation Treatment l
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For=s (Line and Grade)
Blockouts, Keys, 'Jarerstee. etc. -
Reinforcing Steel -
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Anchor Bolts, E= bedded Steel I
Electrical ,
Hechanien1 Final Clean-up Remarks:
Approved for Placing Time Date j Contractor's Representative.
l Approved for Placing Time Date Ebasco's Q.C. Representative (See Reverse Side for Instructions) ,
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( QCIP-6-1 (11-29-75) l I .
.,., Placement No.
, WATERFORD STI'A!! ELCCIC STATION l'JSO - 1165 :-EJ INST /.LLATIO:i - UNIT NO. 3 CCNCRETE PRT.PLACF21C;T l';SPECTIO:1 Cl!CCKLIST
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ITDI DESCRIPTION LOCATION ELEVAT10:2 TO DRAUING NCSER REV. SPECIFICATION no. REV. .
N0hTNCLATL72 - ACCEPTD N/A RD! ARKS !
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6.1 EXCAVATION AND FCUNDATION l
.1 Dimensional Location of Excavation l
.2 Elevation of Principal Base Area
.3 Condition of Soil Base Preparation
.4 Pile Croup Installation
.4.1 Nucher of Piles l l 6.2 CONCHCT2 SU22 ACES
.1 Underlying Concrete Surfaces
.2 Surface Preparation '
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.3 Vertical Ccestruction Joints
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.4 Wocting of Concrete Surfaces f
6.3 FORMS
.1 Form Align =ent i I
.2 Form Installation
.2.1 Bracing and Rigidity
.2.2 Forn Material
.2.3 Tic Rods
.2.4 Tic Wires ,
.2.5 Forn Oil
.2.6 Chamfers and Tillets l
.2.7 Vertical Const. Joint Cha=fers l
.2.8 Form Joints
.2.9 Rcuse of For=s
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