ML20137H159

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Rev 2 to Procedure QI-QP-11.0-3, Concrete or Mortar Placement Insp
ML20137H159
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 07/02/1982
From: Williams H
TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
Shared Package
ML17198A292 List: ... further results
References
FOIA-85-59 QI-QP-11.0-3, NUDOCS 8512020332
Download: ML20137H159 (6)
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I INSTRUCTION ISSUE I

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REVISICN DATE l

TEXAS UT1UTIES GENERATING CC. i NUMBER m

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CPSES l

!QI-QP-11.0-3 i

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1 of 6 JUL 2 1982!

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CONCRETE OR MORTAR CATE' PLACEMENT INSPECTION

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1.0 REFERENCES

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1-A Specification 2323-S5-9, " Concrete" 1-B CEI-29, " Removable Concrete Blocks" ll ulSTBRICALFILE ll 2.1 PURPOSE AND SCOPE

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To delineate the methods used by QC Inspectors to assure that lI concrete, mortar and concrete block placement activities are accomplished in accordance with Reference 1-A and 1-B.

3.0 INSTRUCTION i

3.1 PRE-POUR PLANNING i

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The QC Inspector will verify that the pre-planning provisions of Regulatory Guide 1.55 are being complied with.

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specifically means a demonstrated awareness that items such as cleanliness, availability 'of personnel and placing j

equipment, placing sequence and alternate construction joint locations have been provided for.

On containment wall and dome placements, or those considered complex by the Civil Inspection Supervisor, the planning shall I

be in written form.

3.2 INSPECTION REQUIREMENTS I

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3.2.1 Prior to Placement j

Imediately prior to placement, the QC Inspector shall verify the following items:

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o-r INSTRUCTION ISSUE REVISION PAGE NUMBER DATE TEXAS UTILITIES GENERATING CO.

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QI-QP-11.0-3 2

JR 2 1992 2 of 6 a.

Pour card shall consist of a unique " Pour Number" for each concrete placement and signed by the craft and engineers, b.

Fonnwork for stability, line and grade, tightness of joints and cleanliness.

c.

The fabrication tolerance of concrete blocks is 1/8";

however, the overall depth of blocks in an opening shall not exceed the "As-Built" depth of the opening.

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Dimensions of seismic air gap are in compliance with drawings, and gap is protected from intrusion of foreign objects.

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e.

Proper installation of expanded metal construction joints.

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Construction joints clean and thoroughly wetted with no standing water.

g.

Adequacy of placing personnel and equipment.

3.2.2 During Placement l

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During placement, the QC Inspector shall verify the following items:

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a.

Placing sequence conforms to the pre-pour plan.

b.

Placement rated ensures ' proper integration with preceding lift.

c.

Placemement lifts do not exceed 18".

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d.

Placement technique causes minimum segregation.

e.

Vibrators not used to convey concrete or mortor more than three feet.

f.

Vibrators penetrated approximately four inches into l

preceeding lift.

g.

Vibrators operate at minimum 8000' I.P.M. (Document on l

inspection report).

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h.

Record four placement temperature measurements on inspection report.

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INSTRUCTION ISSUE REVISION PAGE N

DATE TEXAS UTILITIES GENERATING CO.

CPSES QI-QP-11.0-3 2

3 of 6 M 2 1032 l s

1.

Trucks discharged before 45 minutes if ambient temoerature above 85'F., or 90' minutes if approved by Engi-r.

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Placement does not contact aluminum.

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Placememnt placed to proper grade.

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Application of required finish.

3.3 REMOVABLE CONCRETE BLOCK INSTALLATION The concrete blocks shall be installed in accordance with

" Typical Wall Concrete Block Arrangement" unless otherwise noted on Gibbs & Hill drawings. The concrete blocks shall be staggered to meet shielding requirements per the applicable Gibbs & Hill drawings.

Prior to concrete block installation all concrete blocks shall be numbered as per Attachment 2 using a Permanent (p !

Nuclear Marker (Marsh AEC) to maintain exact location and d

orientation of blocks for future removal.

Rebar (main wall reinforcement) may' be cut only for the

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installation of 1/2" O thru bolts as shown on applicable i

l Gibbs & Hill drawings.

l 3.4 DOCUMENTATION OF INSPECTION l

Verify inspection to provisions of this instruction on the Inspection Report (Attachment 1)01sor/ designee and upon completion submit to the Civil Inspection Super for review, processing and filing in accordance with CPSES requirements for "QA Records".

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INSTRUCTION ISSUE REVISION PAGE

_T NUMBER DATE TEXAS UTILITIES GENERATING CO.

CPSES JUL o 1992 OI-0P-11.0-3 2

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ATTACHMENT 1 c:M AN C.wt P(AN STEAM E' ECTRIC S TATION 2

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I FOR!tdORK: STABILITY, LINE AND GP.ADE, TIGHTNESS OF l l l 3

l IJ0!NTS AND C(EANLINESS. J0!NTS GROUT T!GHT. PARA. 3.2.1 l I l

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! PROPER INSTALLATION OF EXPANCED METAL CONSTRUCTION i lI l

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1 ABE00ACY Or ptAC!NG PE950NNEL AND E00!PMENT. PARA. 3.2.11 l

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ICONCRETE BLOCKS FABRICATION TCLERANCE !$ ! 1/8" DUR!NG 1 I

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IPLACEMENT RATE ENSURES PROPER INTEGRAT!CN WITH PRECEDING ' I I

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't f rT AND ptactNC sE0eENEE CONroRws TO TwE 80EP0UR PL AN ' 8 I I

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IPARA 177 I

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ICONCRETE LIFT 5 00 NOT EXCEED 18" PARA.

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V!BRATORS NOT USED TO CONVEY CONCRETE MORE THAN 3 FEET i !

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'V! BOAT 0DS PENETSATE APP 9071uATElv 4 INCHE! fMT0 #RE-rra?Na ttrT_ PADA 177 Peruse 80s.1

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INSTRUCTION ISSUE E#

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DATE TEXAS UTILITIES GENERATING CO.

CPSES j

j QI-QP-11.0- 3 2

JUL 2 1992 5 of 6 i

h ATTACHMENT 1 (CONT.)

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l cowAncME PEAx sitAu ELECTaic staticN INSPECTION REPORT i

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