ML20137H773
| ML20137H773 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 02/16/1983 |
| From: | Williams H TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | |
| Shared Package | |
| ML17198A292 | List:
|
| References | |
| FOIA-85-59 QI-QP-11.0-12, NUDOCS 8512020471 | |
| Download: ML20137H773 (4) | |
Text
-
(
REVISICN O
PAGE
'EXAS UTIUTIES GENEPATING CO.
Ny CPSES QI-QP-11.0-12 8
1 of 4
- FEB 1 d 1983' D BY
<M /.
L g
g INSPECTION OF PRESSURE fe [/ r D;, ;
GROUTED BASE PLATES AND !
[
d EQUIPMENT BASES
- ApcROVED BY
r v (
/k APPROVED BY.
DATE i
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 Ceilcote 658-N Grout" HISTORICAL FILE r'
This instruction provides the QC Inspector with the criteria (a ]
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.
2.2 SCOPE I
This instruction is to be used when inspecting the pressure grout used on ASME Section III, Subsection NF, Class 5 -
i Supports, cable tray, conduit supports and gaps formed t
between the concrete and the equipment base after grouting l
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 i
l 3.1 FORMING l
Epoxy grout is applied in a fluid state and adequate forms or
" Cam" must be provided as applicable.
i l
(V/'l 8512020471 851106 PDR FOIA PDR G ARDE8 5-59 I
TUGC0 cA
,,,,,,m 7
l l
l INSTRUCTION ISSUE REVISION PAGE
['i TEXAS UTI:.lTIES GENERATING CO.
DATE V
)l-QP-11.0-12 8-FEB Id icS3 I
3.2 EQUIPMENT / BASE PLATE PREPARATION Pressure Grout placement holes shall be located as described in Attachment 1 to CEI-25 for base plates 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 af ter grout placement.
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 1/16". Caps exceeding 1/2" shall be brought to the attention of the Engineer for resolution prior to grout placement.
3.3 MIXING The mixing of the epoxy resin and resin converter shall be i
i as per the manufacturer's instructions and Reference 1-A for hanger base pl a tes, 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 dif ficul t.
Best handling properties are achieved at 75'F 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.
3.4 PLACEMENT Ceilcote 658-N Grout shall not be placed unless the surface 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 50'F shall be added to the cure time. The surrounding area of (the base plate to be grouted) shall be inspected to
(
be free of moisture.
j "co o^
,m
(
l I
i INSTRUCTION ISSUE SLON PAGE NUMBER DATE
.(U,_)
l TEXAS UTILITIES GENERATING CO.
CPSES QI-QP-11.0-12 8
FEB 16 1983 i
l 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 centermost opening. As soon as grout is emitted from an adjacent hole and the grout is free of l
bubbles, injection may begin at that opening.
This step wise prccedure 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.
3.5 CURE OF GROUT pd When a system has been grouted and is being placed into operation prior to the full seven days of cure, the hangers that have been grouted will be monitored for surface temperature and cure time as stated below.
Surface Temp. 'F Hours of Cure l
50 - 69 72 70 - 89 18 90 - 110 16 l
Below 50*F little or no cure takes place, therefore, grouted areas are to be maintained above 50*F for proper cure.
j Full cure of grout shall be seven days at or above 50*F.
3.6 DOCUMENTATION Equipment base plate grouting shall be documented on an Operation Traveler.
Hanger base plate grouting shall be documented on the IR.
3.7 SAFETY i
Safety precautions shall be observed as identified in l
Reference 1-A or 1-8.
l(O O
1 Perm No.1
- 7. _ 1.
6 l
l SION GE l
INSTRUCTION ISSUE NUMBER DATE (O'j i TEXAS UTILITIES GENERATING CO.
l CPSES I
FEB1J1963l QI-QP-11.0-12 8
4 of 4 l
i l
ATTACHMENT 1 COM AN CHE PEAK STEAM ELEC TRIC S T ATION l
s-t r '
er j
INSPECTlON REPORT j=o
'0E"M' car.a= no.
sesitu / sinwcrwu ocasnarics irEm oEscaiPrio" GROUT OF P!PE SPT.
3l.
4 22erpfArc e, prow pfANT rnDT_ ?
sM.CNG j%w gNEF G C COC & A(v & CMah6( NQ WE AsvaE Cil TE5T EQueP soENT, 'v0 l
2123.MS.100 el el 01-0P.11.0 12. Rev.
y 2nEOU*c' C P*pcg,ta,rica O ra,5,'s^f,'cp,T C Fi,a,g,c,e, O PyCpt{T T
2
?ics th5 P 8tEsubT s b sNSP(CT1oM Co4P([r(D &LL APOUCaaLE ITEMS satisFACro4T
- C ""
OisPEcrea cou terco. uasarisricrear irt=s tistro seto-trEu No e.
og PRESSURE INSPECTION ATTRIBUTES carg siGmarunt GROUT e*
5 e
I I
i 1.
ion = reavided alono olate edce as recuired.
I Ii O
2 l Holes drilled in oroper location.
l l !
l 3.
ICeilcote 658.N or aceroved equal used.
l l l 4
l Mined accordino to Manufacturer's instructions.
l' l
I I
S.
ITemocrature meets Manufacturer's soecifications for
{
l l
l
!claceaeat.
6.
Irar dSer act exceed b" wide.
I I ial indicators are placed to monitor ecutoment base i !
I D
7-Irlate mvement durino pressure croutino and readinos Il l
Ince recorded on Travelers.
I
{
l Surroundino area is free of moisture.
l o
o-l Grout cour is cured when system is olaced int'o operation l
l f
erier to full cure.
l l l
l l l
I I II I
I i ll I
I I
nemaans tones.sPtes,tica
REFERENCE:
CEl-25, Rev.
CE!-27. Rev.
"C"'LC "C""
iD'TE i sicmarups i R. CLOSED C
i 8
oC INsPECroA is
- 5 TUGCO OA Perin No.1
-~
.a-e
...e.g
..,.wa,,,,,
,,