ML20137G920

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Rev 1 to Procedure QI-QP-11.0-3, Concrete or Mortar Placement Insp
ML20137G920
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 07/05/1979
From:
TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
Shared Package
ML17198A292 List: ... further results
References
FOIA-85-59 QI-QP-11.0-3, NUDOCS 8512020280
Download: ML20137G920 (4)


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E TEXAS LITILITIES GENERATING CO.

REVISION PAGE 1

'CPSES QI-QP-11.0-3 1

7-5-79 i of 4 CONCRETE OR MORTAR PREPARED BY: w/ [@

v yppy PLACEMENT INSPECTION IfATI M k~

k$h9 APPROVED BY.

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1.0 REFERENCES

1-A Specification 2323-SS-9, " Concrete" 3

2.0 GENERAL 2.1 PURPOSE AND SC' OPE s

To delineate the methods used by QC Inspectors to assure that l

concrete or mortar placement activities are ccom d

accordance with Reference 1-A.

(O gg 3.0 INSTRUCTION 3.1 PRE-POUR PLANNING f

The QC Inspector will verify that the pre-planning provisions of Regulatory Guide 1.55 are being complied with. Th'is specifi-cally means a demonstrated awareness that items such as cleanli-ness, availability of personnel and placing equipment, placing sequence and alternate construction ' joint locations have been provided for.

On containment wall'and dome placements, or those considered 2

complex by the Civil Inspection Supervisor, the planning shall be in written form.

3.2 INSP5CTION REQUIREMENTS 3.2.1 Prior to Placement Immediately prior to placemant, the QC Inspector shall verify the following items:

a.

Pou: card sign-off by Crafts and Engineers.

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ISSUE TEXAS UIILITIES GENA._JG CO.

NINBER REVISIke.

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CPSES QI-QP-11.0-3 1

7-5-79 2 of 4 b.

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

Dimensions of seismic air gap are in compliance with drawings, c.

and gap is protected from intrusion of foreign objsets, d.

Proper installation of expanded metal ccnstruction joints.

e.

Construction joints clean and thoroughly wetted with no standing water.

f.

Adequacy of placing personnel and equipment.

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

Placing sequence conforms to the pre-pour plan.

a.

b.

Placement rate ensures proper integration with preceding Elift.

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c.

Placement lifts do not exceed 18".

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Placement technique causes minimum segregation.

e.

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

f.

Vibrators penetrate apporximately four inches into preced ing lift.

g.

Vibrators operate at minimum 8000 I.P.M. (Document on in-spection report).

h.

Record four placement temperature measurements on inspection j

report.

i. Trucks discharged before 45 minutes if ambient temperture above 85 F., or 90 minutes if approved by Engineer.
j. Placement does not contact aluminum.

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Placement,placed to' proper grade.

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-Application of required finish.

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REVISyh.

INSIRUCTION ISSUE rumen PAGE CPSES 6

QI-QP-11.0-3 1

7-5-79 3 of 4 3.3 DOCUMENTATION OF INSPECTION Verify inspection to provisions of this instruction on the Inspection Report (Figure 1) and upon completion submit to the Civil Inspection Supervisor / designee for review, processing and filing in accordance with CPSES requirements for "QA Records".

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ISSUE g,gg DM PAGE CPSES oI-QP-11.0-3 1

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