ML20137H577
| ML20137H577 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 12/13/1982 |
| From: | Williams H TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | |
| Shared Package | |
| ML17198A292 | List:
|
| References | |
| FOIA-85-59 QI-QP-11.0-6, NUDOCS 8512020425 | |
| Download: ML20137H577 (6) | |
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O TEXAS UT L2 TIES GENERATING Co.
y ggg AEVISICN g g PAGE CPSES l QI-QP-11.0-6l-6 1 of 6
- DEC 13 1982 l
PREPARED BY:
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/3/4/n INSPECTION OF GROUTING g
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1.0 REFERENCES
1-A 2323-55-9, " Concrete" 1-B CP-QP-18.0, " Inspection Report"
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1-C CP-QP-16.0, "Nonconformances" 2.0 GENERAL 2.1 PURPOSE O
.V This inspection outlines the methods and criteria used to verify that the placement of grout conforms to Reference 1-A.
2.2 SCOPE l
This instruction applies to the grouting of base plates, bearing
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plates, loose lintels, equipment bases, anchor bolt pockets and other items noted on the design drawings except those which are i
j pressure grouted using a commercial epoxy grout.
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Dry packing' of base plates shall be ori a monitoring basis as l
directed by the QC Supervisor or his designee.
l 3.0 INSTRUCTION
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3.1 INSPECTION CRITERIA C 328 3.1.1 Preplacement Inspection
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The following attributes shall be verified to the extent possible, j
prior to grout placement:
a.
Base and bearing plates are set to proper grade, leveled supported and aligned.
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CPSES QI-QP-11.0-6 6
QtC 1 o 1982 2 of 6 s
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Wedges and shims are cut off flush with plates.
c.
Oil, grease, dirt, loose concrete and laitance removed from concrete surface to receive grout, d.
Oil, grease, rust and mill scale removed from underside of item teing set in grout.
e.
Concrete surfaces kept wet for six hours minimum prior to placement of general purpose grout. Where commercial grout is used, pre-wetting or a bonding agent shall be applied as per the manufacturer's written instructions, f.
Grout card sign-off completed by crafts and, engineers, g.
Fonns securely anchored and of sufficient height, core bore are correct size and location.
h.
Where necessary, vent holes cut with approval from the engineer.
i.
Area to be grouted is vibration free.
J.
Correct method of grouting selected for tha pa' ticular appli-r cation.
k.
Temperature of general purpose grout and surfaces to receive grout is 50 to 90 degrees F.
Where commercial grout is
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used, temperature shall meet manufacturer's written instruc-tions.
3.1.2 Placement Inspection The placement of grout shall be witnessed and inspected for the following attributes:
a.
The proportion of materials, temperature of water and mixing time are in accordance with Reference 1-A or approved grout manufactuer's instructions, b.
Grout tamped, rodded, strapped or spaded for proper consoli-dation.
c.
Vibration from nearby equipment avoided.
,d.
Grout placed continuously and contact with bottom of base i
plate maintained.
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e.
' Test sample taken by TUGC0 Lab.
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INSTRUCTION ISSUE REVISION PAGE DATE TEXAS UTIUTIES GENERATING CO.
CPSES i
i DEC 13 Iq 3 of 6 l
QI-QP-11.0-6 6
3.1.3 Post-Placement Inspection The QC Inspector shall verify the following post-placement require-ments:
a.
Curing of non-shrink grout shall be in accordance with the manufacturer's instructions, b.
All purpose grout shall be fully wet cured for at least seven days and maintained at a temperature of 50 to 90 degrees F.
c.
In extreme hot or cold weather conditions Engineering may specify special instructions for curing.
d.
Grout protected from mechanical damage.
e.
Temperature around grout placement is not allowed to change more then 5* in one (1) hour or 50' in 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
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i 3.2 DOCUMENTATION Inspections of dry packing shall be docume'nted on an Inspection Report per Attachment 1.
Preplacement and post-placement inspections shall be documented on an Inspection Report per Attachment 2.
Curing inspections shall be documented on an Inspection Report per Attachment 3.
3.3 NONCONFORMANCES Nonconforming conditions shall be reported in accordance with Reference 1-C.
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- TEXAS UT1UTIES GENERATING CO.
l CPSES l
QI-QP-11.0-6 6
DEC 1 a 1982 4 of 6 i
l ATTACHMENT 1 COM AN CHE F{AM $7DM E6ECTRIC $7A7s0N w r?
y INSPECTION REPORT au sv5 Teas /5TRwcr m[ M 5. Gena rcae artis 0(SCAhrtese gappenrcr60m NQ.
V itor of Dev Packine e
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ag,",yyng 3 catt INSPECTION ATTRIBUTES 7- !
1 l Area to receive grout is clean and free of oil, dirt, l
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O I ae* *< a caiat aad mill s tele. Pere. 3.1.1 1
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l Weldcrete properly applied, Para. 3.1.1 l
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IWirtueeit in acce* dance with Para. 3.1.2 h
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l Grout is thoroughly tamped and care is taken to l
l l thereuchly fill sDece without voids or cavities and contact is acainst entire underside area of plate, l
Paca. 3_1 7 s
5.
Curing compound is properly aoolied, Para. 3.1.3 l
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INSTRUCTION ISSUE REVISION PAGE NUMBER DATE TEXAS UTILITIES GENERATING CO.
CPSES DEC 1 b 1982 5 of 6 QI-QP-11.0-6 6
ATTACHMENT 2 1
C::MANCnE MM STum Ei.ICTRIC STATION j
w ar INSPECTION REPORT
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(Grout card adequately signed of f, Para. 3.1.1 l
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lArea to receive arout is clean and free of loose concrete I
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limit 4aace. oil. crease and diet. Pare. 3.1.1 i
3 IFom are strono secure and water tight. Para. 3.1.1 l
Ir, So-e holes are cor eet tire and location. Par'a.$.1.1 a
z 5.
l Proper tools and materials are available at point of s.
Iolateet. Para. 3.1.1 6.
IUederside of ecutoment is clean and free of grease, dirt, Iail. and ethee coatinos. Para. 3.1.1 PLACEMENT 1.
Grout proportions, mixture and temperature are in accordance with the manufacturer's instructions, Pare 3.1.2 7.
Creut seured continuous 1v and stracoed and redded for maar racenlidatinn. bara 3.13 3.
Vibration from nearby eouisment avoided. Para. 3.1.2 l
d.
Test sample taken by lab. Para. 3.1.2 I i
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mesa ms tases,spres,tTcJ Bag Grout Temp:
W3ter Temp:
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INSTRUCTION ISSUE f
i DAM TEXAS UUUDES GENERATING CO.
CPSES DEC 13 1982 01-0 P-ll.0-6 6
6 of 6 L
ATTACHMENT 3 CouANCnl PEA".
$1 Eau EulCTRsC sia7CN s rrt er INSPECTION REPORT
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no 2323-55-9 s
.I 01-0P-11.0-6. Rev.
8 ESPE.
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PicTion 3,E fion I
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7tm att INSPECT 10ps ATTRISUTES
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l Curing of nonshriek grovt shall be in accordance with I
l leaauf actueer's instructions. Para. 3.1. 3 I
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2.
! Grout protected froinmechanical damage by location and I
i lbarrier. Para. 3.1.3 I
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l All purpose grovt shall be set cured for at least seven j
l days. Pa ra. 3.1. 3 l
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4 l Temperature around grovt not allowed to change more than 5' in one (1) hour or 50' in 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. Para. 3.1.3 I
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REVISICN g
PAGE ExAs urtmES GENERAENG CO.
NU S CPSES QI-QP-11.0-5 3
- DEC 13 1982 1 of 7 PREPAREDBY:[
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l 1.0 REFERNECES 1-A Specification 2323-55-9, " Concrete" i
1-B 35-1195-CCP-12
" Concrete Finishing, Finishing and Preparation of Construction Joints" l
FOR @' 0RMT10N DLY PURPOSE AND SCOPE g
To describe the method for QC inspection of repa i rs to concrete surface defects and defecti.ve concrete to ensure compliance with Reference 1-A. {
2.2 DEFINITIONS C 32j l
2.2.1 Concrete Surface Defects L
i Surface defects shall be defined as minor air pockets, tie holes, honeycombing, sand str.eaking and, where subsequent coatings are to be applied, from fins and protrusions.
2.2.2 Defective Concrete i
i Surface defects shall be considered defective when, during i
i removal to sound concrete, reinforcing steel is exposed.
j 3.0 INSTRUCTION l
3.1 VISUAL CHECK OF CONCRETE SURFACES a.
Immediately upon fom removal, the QC Inspector shall visually inspect the concrete surface for defects as defined in Paragrpah 2.2.
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INSTRUCTION ISSUE RNSION PAGE DATE TEXAS UTILITIES GENERATING CO.
CPSES 1
QI-QP-11.0-5 3
DEC 131982 2 of 7 b.
If surface defects are noted, the QC Inspector shall verbally notify B&R Construction to repair the defect in accordance with existing procedures.
c.
If defective concrete is noted upon removal, or rebar is exposed after chipping to sound concrete for surface repairs, it shall be documented by the QC Inspector on the Defective Concrete Report (Figure
- 1) or a Nonconformance Report.
The NCR will be issued when requiring engineering evaluation prior to doing any chipping to the defective area.
3.2 INVESTIGATION OF DEFECTIVE CONCRETE a.
The QC Inspector shall submit the Defective Concrete Report (Figure 1) to the Civil Inspection Supervisor /
Designee for review and investigation of the defect.
b.
If the defect is of a unique nature, it will be so h'
noted by the Civil Inspection Supervisor / Designee in the dispos.ition portion of Figure 1.
The cognizant QC Inspector will then issue a.Nonconformance Report.
c.
If the defect is routine in nature, the Civil Inspection Supervisor / Designee will denote in the disposition portion of Figure 1, the applicable sections of Reference 1-B to be used for the repair work.
3.3 DEFECTIVE CONCRETE REPAIR PROCEDURE For repairs indicated to be unique in nature on the Defective Concrete Report (Figure 1), B&R Construction will establish a
repair procedure (disposition) in response to the Nonconformance Report and submit to the TUSI Resident Manager for review and approval.
3.4 INSPECTION 3.4.1 Defective Concrete Repairs The Civil Inspection Supervisor / Designee shall review the approved defective concrete repair procedure and direct the cognizant QC Inspector to prepare a checklist on the Inspection Report (Figure 2), to ensure compliance with the approved procedure.
The following inspection items
, f (V7 will be verified:
TUGCO CA
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-lNSTRUCTION ISSUE REVISION PAGE
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l' TEXAS UTILITIES GENERATING CO.
CPSES l
QI-QP-11.0-5 3
DEC 13 1982 3 of 7 a.
Reference to approved repair procedure b.
Date of repair, location and name of inspector c.
Preparation of affected area i
1.
Chipped to sound concrete 2.
No feather edging 3.
Area clear of debris, oil, grease and dirt d.
Inspection of bonding material, proportioning and mixing e.
Proper tools and material, form securely anchored and water tight i
l f.
Grout preparations mix time and temperature are in (O) accordance with manufacturer's instructions 9
Dry pack mixture is in accordance with Reference 1-A b.
Vibration from nearby equipment avoided 1.
Test sample taken by TUGC0 Lab j.
Curing Curing for grout shall ' be as per manufacturer's instructions.
Dry pack shall be protected by use of an approved curing compound.
Temperatures around the repair area are not allowed to change more than 5' in one hour or 50' in 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
3.4.2 Surface Defect Repairs An in-process monitor of routine surface defect reapirs j
will be co3 ducted by all Civil QC Inspectors to ensure that I
only tpecified materials, surface preparation, placing g
techniques ar.d curing methods are being used.
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- TEXAS t.,TILITIES GENERATING CO.
CPSES QI-QP-11.0-5 3
DEC 13 1982 4 of 7 3.5 DOCUMENTATION 3.5.1 Defective Concrete Repairs a.
The QC Inspector shall verify the satisfactory perfonnance of the checklist items on the Inspection Report (Figure 2) and submit it to the Civil Inspection Supervisor / Designee.
D.
The QC Inspector shall verify satisfactory completion of the repairs by signing the " Verification" portion of the Nonconfonnance Report.
3.5.2 Surface Defect Repairs The Civil QC Coordinator shall verify a continuing in-process monitor of routine surface defect repairs in his area by submitting an Inspection Report to the Civil Inspection Supervisor / Designee when so directed.
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INSTRUCTION Ibb REVISION PAGE O!
NUMBER DATE i TEXAS UTI' lTIES GENERATING CO.
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Ql-QP-ll.0-5 FlGURE I DEFECTIVE CONCRETE REPORT 1
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' PROJECT: CPSES JOB NO. 35-1195 UNIT:
PACE OF STRUCTURE:
2 POUR NO:
DATE OF POUR:
1.
TYPE OF DEFECT:
A.
RIBAR EXPOSED DURING PREPARATION FOR SURFACE DEFECT REPAIR O
B.
REBAR EXPOSED UPON FORM REMOVAL 0
l C.
LINEAR FRACTURE WITH EXTENT UNKNOWN O
i 2.
IhCATION OF DEFECT:
A.
MAT O
B.
ELEVATED SLAB BOTTOM O TOP O
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WALL O
D.
CURB D
C E.
BEAM BOTTOM O SIDE F.
COLUMN O
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BroCx00'
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OmER O
3.
EXTENT OF DEFECT:
i A.
SIZE: LENGTH WIDTH DEPTH 1
3.
NUMBER OF REBAR EXPOSED s
4.
DESCRIPTION:
DATE QC ENGINEER / INSPECTOR j
l 5.
DISPOSITION:
A.
MON-ROUTINE REPAIR; DOCUMENT WITH N.C.R.
O B.
ROUTINE REPAIR IN ACCORDANCE WITH SECTIONS O
OF CCP-12
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DATE CIVIL INSPECTION SUPERVISOR poem me.1
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DEC 1 o 198 QI-QP-11.0- 5 3
g of 7 FIGURE 2 0::M AN CHE Man S TE And ELECTRIC STATION se m w
INSPECTION REPORT l=a aftas StaCJh7 Ten Grout kepair Qt a00'ermCar.on 4 gsv &TEu / 5TNuCT6mg cg s.Gmar.on nefective Areas t
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SPEC.4 gNEw-2373-55-9 si e 01-0P-11.0-5. Rev.
C P*MSPECTICN C I"RsMC'lon C P*t 'astattario" OP'5'^u.*a' O Fmal rvst
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INSPECTION ATTRieuTES oarg E
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lConstruction procedures aooroved at work area I
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l$veface Preparation. Para. 3.4.1 l
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l'1 CMooed to sound concrete l
l) No feathered edges
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13% Area clean ef debris. oil. grease and dirt l
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l Area to receive grout treated with Welderete as lbendino acent. Dara. 3.4.1 l
1 4.
loroner tools an materials at site. Para. 3.4.1 l
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IForms strono secure and water tight, Para. 3.4.1 I
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IGrout oreoarations mixtime and temperature are in l l l
Inecordance with manufacturer's ins tructions, Para. 3.4.11 l i l
! ev cack mixture is in accordance with Ref.1-A. Para.3.4.1! ll l
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5 vibration from nearty ecutoment avoided. Para. 3.4.1 l l l 1
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I Test samole taken by lab, Para. 3.4.1 l l!
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Bag Grout:
Mix Water:
Area:
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INSTRUCTION ISSUE l
O TEXAS UT!UTIES GENERATING CO.
REVISION PAGE NUMBER DATE 6
CPSES j
01-Q P-11.0- 5 3
DEC 1 a ISE 7 of 7 i FIGURE 3 i
Coas AN CnE M.h S TEAas ELECTRsc $ TATION I
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s[8 sNSPECTION ATTRt0UTES
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l Dry oack shall be erotected form Oremature drying by use l
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IGrout shall be cured as per manufacturer's instructions, j
lpara. 3.4.1 I
I 3.
Greut protected from mechanical damage by location and I
i l barrier, Para. 3.4.1 1
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4 l Temneenture around amut not allowed to change more than l
3 ICO O
in nne haue nr M in ?4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. Para. 3.4.1 l
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