ML20137H746
| ML20137H746 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 06/17/1983 |
| From: | Williams H TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | |
| Shared Package | |
| ML17198A292 | List:
|
| References | |
| FOIA-85-59 QI-QP-11.0-12, NUDOCS 8512020466 | |
| Download: ML20137H746 (4) | |
Text
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6 1 INSTRUCTION ISSUE
(-)
TEXAS UT1UTIES GENERATING CO. ;
NUMBER REVISION DATE PAGE i
,QI-QP-11.0-12 10 1 of 4
'JUN1 M33' i
4 PREPARED BY: [ p/d /< [I d[4/#5' INSPECTION OF PRESSURE CATE~
l GROUTED BASE PLATES ANDl
- I/4 +
EQUIPMENT BASES
! APPROVED BY: /[
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DAT-I
///
P hg APPROVED BY:
/ / //
[j DATE
1.0 REFERENCES
I 1-A CEI-25, " Grouting Pipe Support Wall and Ceiling Plates" 1-B CEI-27, " Grouting of Equipment Base Plates with Ceilcote 658-N l
Grout" 3
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I 2.1 PURPOSE f)
This instruction provides the QC Inspector with the criteria l
V to be used when inspecting Epoxy Pressure Grout on supports, base plates and equipment foundations with the use of Ceilcote 658-N epoxy grout.
0 2.2 SCOPE 1
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This instruction is to be used when inspecting the pressure grout used on ASME Section III, Subsection NF, Class 5' Supports, cable tray, conduit supports and gaps formed I
between the concrete and the egyipment base after grouting t
per CCP-16 (due to shrinkage).
The use of this material is limited to gaps not to exceed 1/2 inch wide.
i 3.0 INSTRUCTION 3.1 FORMING Epoxy grout is applied in a fluid state -and adequate forms or
" Dam" must be provided as applicable.
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8512O20466 051106 n'
- V GARDEB S-59 I
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- INSTRUCTION ISSUE REVISION PAGE f TEXAS UTILITIES GENERATING CO.
'QI-Q P-11. 0-12 I 10 2 of 4 l
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JUN 17 1983 i
l 3.2 EQUIPMENT / BASE PLATE PREPARATION i
Pressure Grout placement holes shall be located as described in Attachment 1 to CEI-25 for base plates and in accordance j
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.
i QC snall verify that placement holes are not within 1" of a i
l concrete anchor and that the void under the base plate does I
not exceed 1/16".
Gaps exceeding 1/2" shall be brought to the attention of the Engineer for resolution prior to grout placement.
i 3.3 MIXING The mixing of the epoxy resin and resin converter shall be l
i as per the manufacturer's instructions and Reference 1-A for i
hanger base plates, Reference 1-B for equipment bases.
Constituents provided in field unit kits are specific I
i j
quantities and are not to be deviated from.
When the temperature of the field unit kits exceed 90*, the contents i
of the sealed containers must be cooled to about 70* F.
i Below 70*
F, mixing becomes difficult.
Best handling i
properties are achieved at 75*F i 5*F, but are not mandatory.
Properly mixed grout will be uniform 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 i
grout will be considered unacceptable when the first signs l
of gelling occur.
3.4 PLACEMENT Ceilcote 658-N Grout shall not be placed unless the surface i
temperature of the area to be grouted is at or above 50*F.
One surface temperature will be taken for each area that the base plates are being grouted in.
Infrequent dips in temperature to 40*F is permissible during placement and/or
{
cure; however, the elapsed time the temperature is below i
50*F shall be added to the cure time. The surrounding area I
of (the base plate to be grouted) shall be inspected to i (O be free of moisture.
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I TUGCO OA w_
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l ISSUE INSTRUCTION REVISION PAGE
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NUMBER DATE i
TEXAS UTILITIES GENERATING CO.
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QI-QP-11.0-12 10 3 of 4 i
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QC shall verify that construction has placed dial indicators l
on equipment base plates to monitor base movement during j
pressure grouting and that the readings are recorded in the 1
operational travelers.
i i
I Where possible, pressure grouting shall proceed in all directions from the centermost 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 j
(bubble free) from all sides of the base plate or holes adjacent to the edge, l
NOTE:
On equipment when isolated pockets are being i
- grouted, the above paragraph may not be applicable.
I 3.5 DOCLNENTATION Equipment base plate grouting shall be documented on an Inspection Report and Operation Traveler.
Hanger base i
plate grouting shall be documented on the IR.
I l
3.6 SAFETY t
Safety precautforts shall be observed as identified in i
Reference 1-A or 1-B.
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INSTRUCTION ISSUE RWISION PAGE t
NUMBER DATE
,; TEXAS UTIUTIES GENERATING CO.
CPSES l
QI-QP-11.0-12 e 10 JlJN 17 1983 4 of 4 ATTACHMENT 1 OOM AN CaE PEAx STEAM LGM4C S TA T.CN
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9.e er INSPECTION REPCRT jaa ot* Dt5ca'*C" GROUT OF P IPE SPT.)'*""* *
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'O ITEas utL QC PRESSURE INSPECTION ATTRIBUTES g 04Tc gagyg
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- onaams t owes.sares, em REFERE%E: CEl-25. Rev. _
(.D CEl-27. Rev. _
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