ML20137H927

Rev 3 to Procedure QI-QP-11.0-12, Insp of Pressure Grouted Base Plates & Equipment Bases

ML20137H927
Person / Time
Site:	Comanche Peak
Issue date:	10/20/1981
From:	Hartshorn W TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
Shared Package
ML17198A292	List: IR 05000445/1975010 IR 05000445/1975013 IR 05000445/1977001 IR 05000445/1977006 IR 05000445/1978001 ML20136E534 ML20136F607 ML20136F614 ML20136F654 ML20136F657 ML20137F490 ML20137F614 ML20137F642 ML20137F839 ML20137F884 ML20137F989 ML20137G027 ML20137G052 ML20137G077 ML20137G179 ML20137G337 ML20137G361 ML20137G411 ML20137G433 ML20137G469 ML20137G492 ML20137G650 ML20137G666 ML20137G734 ML20137G823 ML20137G863 ML20137G901 ML20137G920 ML20137G975 ML20137H013 ML20137H032 ML20137H104 ML20137H117 ML20137H144 ML20137H159 ML20137H181 ML20137H212 ML20137H233 ML20137H245 ML20137H256 ML20137H275 ML20137H635 ML20137H666 ML20137H746 ML20137H761 ... further results
References
FOIA-85-59 QI-QP-11.0-12, NUDOCS 8512020512
Download: ML20137H927 (3)

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TEXAS UTILITIES GENERATING CO.

N REVISICN g g PAGE 7-V cPsES QI-QP-11.0-12 3

~OCT 2 0 198'.

1 of 3 l 1W N

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' PREPARED SY: v INSPECTION OF PRESSURE Cm '

, APPROVED BY:

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GROUTED BASE PLATES AND EQUIPMENT BASES

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Av /d 2d/S/

DATE l

APPROVED B_

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N DATE i

1.0 REFERENCES

1-A CEI-25, " Grouting Pipe Support Wall and Ceiling Plates" 1-B CEI-27, " Grouting of Equipment Base Plates with Cei) cote 6584li:

I Grout"

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ac.c FOR INFORMy'l0N10NLY SE"Ea^'

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2.1 PURPOSE W*

O' This instruction provides the QC Inspector with the criteria to

'v be used when inspecting Epoxy Adhesive Pressure Grout on supports, base plates and equipment foundations with the use of Ceilcote 558-N epoxy grout.

t 2.2 SCOPE h

This instruction is to be used when inspecting the pressure grout i

used on ASTE Section III, Subsection NF, Class 5 Supports and l

l gaps fonned between the concrete and the equipment base after grouting per CCP-15 (due to shrinkage)'. The use of this material is limited to gaps not to exceep 1/4" wide.

3.0 INSTRUCTION 3.1 SURFACE PREPARATION Prior to application of the Epoxy Adhesive Grout, as much as possible, verify that the grouting surface and surrounding area is free from oil and other foreign materials and is dry.

l 3.2 FORMING Epoxy grout is applied in a fluid state and adequate forms or

" Dam" must be provided as applicable.

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BS12020512 851106 l

i PDR FOIA i

GARDE 85-57 PDR i

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INSTRUCTION ISSUE 1

REVISION I

PAGE NUMBER DATE TEXAS UTILITIES GENERATING CO.

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CPSES i

OCT 2 0 1981 l 2 of 3 QI-QP-11.0-12' 3

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i 3.3 EQUIPMENT / BASE PLATE PREPARATION Pressure Grout placement holes shall be located as described in to CEI 25 for base plates and in accordance with the I

instructions provided by Engineering on an Operational Traveler

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for equipment bases.

Hole size shall be 1/4" or as specified by Engineering.

I Placement holes shall not be within 1" of a concrete anchor.

Repair of grout holes is not required.

I 3.a MIXING i

The mixing of the epoxy resin and resin converter shall be as per the manufacturer's instructions and Reference 1-A for hanger base plates, Reference 1-B for equipment bases.

Constituents provided in field unit kits are specific quantities and are not to be deviated from.

When the temperature of the field unit kits exceed 90', the contents of the sailed containers must be cooled to about 70*

F.

Below 70* F, mixing becomes difficult.

Best handling properties are achieved at 75'F 2 5'F, but are not mandatory.

Properly mixed grout will be unifonn tan in color with no dry areas.

Pot life may vary depending on temperature.

At 70*F, pot life will be approximately 30 minutes.

Mixed grout will be considered unacceptable when the first signs of gelling occur.

3.5 PLACEMENT j

QC shall verify that construction has placed dial indicators on equipment base plates to monitor base.novement during pressure grouting and that the readings are recorded in the operational travelers.

Where possible, pressure grouting shall proceed in all directions from the centennost opening.

As soon as grout is emitted from an adjacent hole and the grout is free of bubbles, injection may begin at that opening.

This step wise procedure shall be continued until the grout is forced (bubble free) from all sides of the base plate or holes adjacent to the edge.

NOTE:

On equipment when isolated pockets are being grouted.

-- the above paragraph may not be applicable.

Dv TUGCO OA

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l INSTRUCTION REWSION ISSUE 3

PAGE TEXAS UTILITIES GENERATING CO. l NUMBER i

DATE 1

j CPSES 01-0P-11.0-12 3

! 0CT 2 0 190' 3 of 3

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i 3.6 DOCUMENTATION I

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Equipment base plates grouting shall be documented on an i

Operation Traveler and a Grout Placement Ca rd.

Hanger base plates grouting shall be documented on a Grout Placement Card.

i 3.7 SAFEiY Safety precautions shall be observed as identified in Reference i

1-A or 1-B.

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