ML20137H915
| ML20137H915 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 10/27/1981 |
| From: | TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | |
| Shared Package | |
| ML17198A292 | List:
|
| References | |
| FOIA-85-59 QI-QP-11.0-12, NUDOCS 8512020510 | |
| Download: ML20137H915 (4) | |
Text
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i TEXAS UTILITIES GENERATING CO. l INSTRUCTION ISSUE i
I j
NUMBER
. REVISICN
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PAGE CATE tV)
CPSES i
QI-QP-11.0-12 4
I#4 l0079719g; l
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I ED Bn L
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I INSPECTION OF PRESSURE i
GROUTED 8ASE PLATES AND i
EQUIPMENT BASES APPROVED BY:
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l DATE APPROVED BY:
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DATE
1.0 REFERENCES
1-A CEI-25, " Grouting Pipe Support Wall and Ceiling Plates" 1-B CEI-27, " Grouting of Equipment Base Plates with Ceilcote 658-N Grout" I
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2.0 GENERAL
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I 2.1 PURPOSE L~L L. C de, L J ULa j.
l This instruction provides the QC Inspector with the criteria to i
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be used when inspecting Epoxy Adhesive Pressure Grout on supports.
l base plates and equipment foundations with the use of Ceilcote 658-N epoxy grout.
i, 2.2 SCOPE This instruction is to be used when inspecting the pressure grout used on ASME Section III, Subsection NF, Class 5 Supports and gaps formed between the concrete and the equipment base after grouting per CCP-16 (due to shrinkage). The use of this material is limited to gaps not to exceed 1/4" ' wide.
3.0 INSTRUCTION ON DE,y 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.
3.2 FORMING Epoxy grout is applied in a fluid state and adequate forms or
" Dam" must be provided as applicable.
PQ e512020510 851106
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INSTRUCTION ISSUE REVISION PAGE d
TEXAS UTILITIES GENERATING CO.
i QI-QP-11.0-12 4
OCT 2 7 1981 2 of 4 3.3 EQUIPMENT / BASE PLATE PREPARATION Pressure Grout placement holes shall be located as described in Attachment 1 to CEI 5 for base prat'es and in' accordance with the instructions provided by Engineering on an Operational Traveler for equipment bases.
Hole size shall be 1/4", or as specified by Engineering and does not require repair after grout placement.
t QC shall verify that placement holes are not within 1" of a concrete anchor and that the void under the base plate does not exceed 1/4" by use of a feeler gauge.
Gaps exceeding 1/4" shall be brcught to the attention of the Engineer for resolution prior to grout placement.
3.4 MIXING The mixing of the epoxy resin and resin converter shall be as per the manufacturier'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 sealed containers must be cooled to about 70* F.
Below 70*
F, mixing becomes difficult.
Best handling properties are achieved at 75*F t 5'F, but are not manda tory.
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 QC shall verify that construction has placed dial indicators on equipment base plates to monitor base movement 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 p
emitted from an adjacent hole and the grout is free of (V
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, p
een i
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INSTRUCTION ISSUE q
REVISION PAGE h
TEXAS UTILITIES GENERATING CO.
DATE CPSES QI-QP-ll.0-12 4
'3CT 2 ? 1981 3 of 4 i
- NOTE:
On equipment when isolated pockets are being
- grouted, the above paragraph may not be applicable.
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3.6 DOCUMENTATION Equipment base plate grouting shall be documented on an Operation
- Traveler, a
Grout Placement Ca rd, and an Inspection Report (See Figure 1).
Hanger base plate grouting shall be documented on a Grout Placement Card and the IR.
3.7 SAFETY Safety pr shall be observed as identified in Reference,ecautions 1-A or 1-8.
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t INSTRUCTION ISSUE REWS m PAGE NUMBER DATE TEXAS UTILITIES GENERATING CO.
p CPSES
't) 01-0P-ll.0-12 4
OCT 2 7 1981 4 of a i
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FIGURE 1 COM ANCHE PEAK STEAM ELECTRIC STATION 94rr ce INSPECTION REPORT an i
IfDs oCsCALPriom CRot'! 0F PLFE SPT. {GW4AT4"
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4 BASEFLATE & PERM. PLANT EOPT.
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9U C4 QQC. & Alv & Cnahr.E NO.
d_^*"E OR 6tas equip. soDaT. ka.
Wh.MO, lRD.
QI-QP-11.0-12. Rev.
232FMS-100 91 e
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E aar'ea 01"se' set:to'n soces ins wisnenon eication m
m REsutts O==sacerio= co aterro, att an ucaste irt=3 sarisractoar
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se PRI INSPECTION ATTRIBUTES 3
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I Card adequatelv signed off.
2.
l Surf ace to receive grout is clean. dry and f ree of oil l and dust or dirt.
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3.
l Das erevided elent elate edne as reeufrW.
4.
l Holes drilled in proper location.
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l Cailcote 658-N of approved equal used.
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l Mixed according to Manuf acturer's instructions.
7.
Temperature meets Manufacturer's sp.c m cations for placement.
8.
Cap does.not exceed I" wiae.
t FLACEMENT: l 1.
l Dia; indicators are placed to monitor base movement l
during pressure groutine and readinre are recorded I
on Travelers.
2.
Grout pour is cured per Manufacturer's instructions.
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nasanus epees,snes.treJ RETERDCE: CEI-25. Rev.
CEI-27,.new.
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8 cc insmcron es TUGCO OA penn pe.,,
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