ML20205L041
| ML20205L041 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 02/21/1986 |
| From: | TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | |
| Shared Package | |
| ML20205K766 | List: |
| References | |
| QI-QP-11.0-12, NUDOCS 8704020101 | |
| Download: ML20205L041 (12) | |
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TUGC0 INSTRUCTION (V 'EXAS UTILITIES GENERATING CO.' I Page 1 of 9 QI-QP-11.0-12 Rev. 14
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FEB 281986 DfA # I INSPECTION OF PRESSURE GROUTED bp BASE PLATES AND EQUIPMENT BASES PREPARED BY:
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DATE sm 3.ty y
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1.0 REFERENCES
P CEI-25, " Grouting of Base P.la, Int %ee tipmen n.,...
1-A ces p;Egu
,e S y' ugs with Ceilcote d50--N Epeg C'rhW'"
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1-B 2323 SS-9, " Concrete"
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1-C CP-CPM-6.3, " Preparation, Approval, and Control of Operation l
Travelers" 1-D QI-QP-il.0-15. " Verification of Base Places for Grouting" l
l-E CP-QP-18.0, " Inspection Reports" l
1-F C?-QP-16.0, "Nonconformances" l-G QI-QP-11.2-1, " Installation of Hilti " Drilled-In" Bolts" l
2-CONTR0! LED COPY 2.1 PURPOSE CONTROL co.Ermcm This instruction provides the QC Inspector with the acceptance criteria to be used while perfor=ing Epoxy Pressure Greucing inspections on base plates /nenbers and equipnent bases with the use of Ceilcote 638-N epoxy grout or other approved grout as approved by Engineering in accordance with Reference 1-A & l-3.
2.2 SCOPE This instruction is to be used when inspecting the pressure grouting of ASME Section III, Subsection NF, Class 5 supports; cable tray and conduit supports; other structural supports; and j
gaps forned between the cement grout and the nachanical equipment l
base after grouting per CCP-16 (due to shrinkage).
8704020101 870325 PDR ADOCK 05000445 A
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1 TUCCO INSTRUCTION QI-QP-11.0-12 Rev. 14 Im TEXAS UTILITIES GENERATING CO.
Page 1 of 9
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DEC 22 M INSPECTION OF PRESSURE GROUTED BASE PLATES AND EQUIPMENT BASES PREPARED BY:
See original page 1 for approvals DATE APPROVED BY:
See original page 1 for approvals DATE APPROVED BY:
See original page 1 for approvals DATE
1.0 REFERENCES
1-A CEI-25, " Grouting of Base Plates, Equipment Bases and Shear Lugs with Ceilcote 658-N Epoxy Grout" 1-B 2323 SS-9, " Concrete" 1-C CP-CPM-6.3, " Preparation, Approval _, and' Control of Operation Travelers" 1-D QI-QP-11.0-15, " Verification of Base Plates for Grouting" 1-E CP-QP-18.0, " Inspection Reports" 1-F CP-QP-16.0, " Reporting Construction Deficiencies" l
1-G CP-QP-11.2, " Inspection of Concrete Anchor Bolt Installation" 2.0 GENERAL
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4 2.1 PURPOSE
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This instruction provides the QC Inspector with the acceptance criteria to be used while performing Epoxy Pressure Grouting inspections on base plates / members and equipment bases with the use of Ceilcote 658-N epoxy grout or other approved grout as approved by Engineering in accordance with Reference 1-A & 1-B.
2.2 SCOPE This instruction is to be used when inspecting the pressure grouting of ASME Section III, Subsection NF, Class 5 supports; l, 3V) cable tray and conduit supports; other structural supports; and gaps formed between the cement grout and the mechanical equipment base after grouting per CCP-16 (due to shrinkage).
q QI-QP-11.0-12, Rev. 14, DCN #2 t
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DOCUMENT CHANGE NOTICE No.
1 Page _ l of I
1.
Proc./ Inst. No. bldll 6 12. Rev.
lal Change Proposed By d.[ITEtJ A/2.7'
- 2. ~ The following change / revision is recor.cended, a.
Description of proposed change (s) /$l1/bJbr. bE (E/2.6,esz.a-l-F rc bc:
bl b. kb EklAIlPJh._ PG4f3.9 T@d.h_CI8f 8dOQc-f17 9eGA 3 4 i:tiohd17
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Justification for change (s) [f d_
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List other procedures / instructions affected by cha'nge(s)
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Approval:
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DOCUMENT CHANGE NOTICE No.
1 Page 1
of 1
1 1.
Proc./ inst. No. QI-QP-ll.0- l_2 Rev. 14 Change Proposed ByLarry A. Bast 2.
The fellowing change /ravision is reco== ended.
a.
Description of proposed change (s)
Change the nueber and title of Reference 1-G to "CP-OP-11.2. Inspection of Concrete Anchor Bolt Installation" b.
Justification for change (s)
The existing reference.'0I-OP-11.2-1 is being deleted, and replaced with CP-OP-11.2.
c.
List other procedures / instructions affected by change (s)
Sin a a - av ~a e ahnee addrassed on additional DCNs initiated for eu,
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Approval:
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TUCCO INSTRUCTION
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QI-QP-11.0-12 Rev. 14 C/
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Page 2 of 9
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FEB 2 6 1986 3.0 INSTRUCTION 3.1 INSPECTION CRITERIA 3.1.1 Preolacement Insoection Prior to grout placement, the QC Inspector shall verify the following:
a.
For the individual component that is to be grouted, there is an "unsat" bearing IR generated as a result of inspection in accordance with ' Reference 1-A or 1-D.
When the design document specifies epoxy grouting of a component, an "unsat" bearing IR is not required.
b.
The maximum thickness of epoxy grout for use under base members shall not exceed the following values unless otherwise approved by the Engineer.
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1.
Inside Containment:
1"' chick maximum 1
2.
Outside' Containment:
1" thick maximum Gaps between mechanical equipment bases and the cement grout c.
(due to shrinkage) require specific instructions on an Operation Traveler issued in accordance with Reference 1-C.
d.
Pressure grout placement holes in baseplates/ members shall be located per Attachment #4.
e.
Pressure grout placement holes in equipment bases shall be drilled in accordance with the instructions provided by Engineering on an Operation Traveler.
Hole si:es shall be 1/4" Q or as specified by Engineering and do not require
- repair, for equipment base places or base plates /= embers.
f.
Shim material shall consist of steel shim plates or washers of a si:e necessary to allow proper Hilti bolt corquing without base place defor=ation.
g.
Installation of fittings on shear lugs shall be per Attach =ent #5.
h.
Surf aces to receive grout shall be free of foreign matter, i.e.,
dirt, oil; and shall be dry.
(Base members and equipment bases) 1.
Forms or dams are adequate and of sufficient height to permit placement of grout.
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Page 3 of 9
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TUGC0 INSTRUCTION 1
QI-QP-11.0-12 Rev. 14
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s FEB 261986 j.
For baseplates/ members attached to structural concrete using Hilti expansion anchors, Hilti's required to be to.rqued per Reference 1-G have been torqued.
Reference the torque IR #
on Attachment 1.
3.1.2 Placement During grout placerent the QC Inspector shall verify the following:
a.
Ceilcoce 658-N shall not be placed unless the surface temperature is at or above 50*F.
Infrequent dips in ambient temperature to 40*F are permissible during placement however the 9 apsed time the temperature is below 50*,F shall be 1
added to the cure time.
b.
The entire content of each of the following constituents has (N
been mixed as follows:
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1.
Ceilcote 658-N Grout Liquid (Resin) 2.
Ceilcoce Hardener 3.
Mesh Silica Aggregate NOTE:
Mixes of smaller proportions shall be measured by the TUCCO Lab.
L.
The hardener has been added to the resin component and mixed thoroughly for 2 minutes.
The silica has been added and mixed j
thoroughly with no dry areas remaining.
2.
Potlife of mixed grout shall be discarded when first signs of setting occurs.
As a guideline potlife at 70*F will be a maximum of 30 minutes.
c.
Dial indicators are placed on mechanical equipment bases and l
readings are recorded on the Operatic: Traveler. Acceptance criteria for movement is listed on the Operation Traveler.
3.l.3 Post-? lace ent Insoection a.
QC shall monitor post placement of epoxy grouted installa-
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tions as delineated in Paragraph 3.2 in order to verify that d
item / component has not been placed into service prior to the below listed cure time.
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TUGC0 INSTRUCTION r~'
QI-QP-11.0-12 Rev. 14 TEXAS UTILITIES GENERATING CO.
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Page 4 of 9 DEC 221986
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Surface Temp. 'F Hours of Cure (minimum) 50 - 69 72 70 - 89 18 90 - 110 16 b.
After grout placement, verify that grout fills all visible areas requiring bearing as specified in Reference 1-D.
3.2 INSPECTION FREQUENCY The QC Civil Inspector shall witness all grouting activities outlined in this instruction on all mechanical equipment bases defined in Paragraph,2.2 and on all items requiring a grout card or traveler, in Seismic Cat. 1 Buildings.
3.3 DOCUMENTATION
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Base plate / member and equipment base grouting shall be documented I
on an Inspection Report (Attachment 1, 2 & 3) per Reference 1-E and/or an Operation Traveler per Reference 1-C.
l 3.4 REPORTING CONSTRUCTION DEFICIENCIES All unsatisfactory conditions shall be documented on an Inspection Report per Reference 1-E using Attachments 1, 2, and 3 and/or an CDR per Reference 1-F.
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QI-QP-11.0-12 Rev. 14
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N' FEB 2 61986 C ACHFS T 1
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3ase messer trou: slacement holes are stooeri.r placed. I i' l l
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Thear lue fittines are corree: size and scooeriv sLaced.i ! l l
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l ano surfaces are frar.
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Forms or dans are aceeuate and of sufficient neignt to ! l l
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FEB 261986 ATTACafENT 2
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- I IN!?ECTION REPORT
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IN57E CION A U M EUTE!
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! Ver1*v that ecoxv trouteo areas have not been olaced i
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into ser rice setor to the recuireo cure ti:ne.
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Recore surf ae. temoerature:
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Comolation of 31acement i i I
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Comnietion of curing i l i l
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I verify that trout fills all sisible areas recuiring i i [
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TUGC0 INSTRUCTION 7EXAS UTILITIES GENERATING CO.
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FEB 281985 ATTACHMDIT 4 FLAT PLATE BASEPLATE SHADED AREAS REPRESENTS ALLOWABLE 1/4" VENT AND FILL HOLE LOCATIONS 1" TYP t
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1 SHADED APIAS REPRESENTS ALLOWABLE 1/4" VENT AND FILL HOLE LOCATIONS
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b CONCRETE ANCHOR pI' i
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AREAS OTHER THAN SHOWN WITHOUT
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.GCHOR NOTE: NO HOLES SHALL BE DRILLED IN AREAS OTHER THAN SHOWN W/0 APPROVAL OF THE RESPONSI3LE ENGINEER.
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FEB 2 61985 ATTACHMENT 5 1/!4" GREASE FITTING FURNISHED BY BUILDING DEPT.
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