ML20206P647
| ML20206P647 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 11/05/1985 |
| From: | Kovensky F, Patterson A TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | |
| Shared Package | |
| ML20206P504 | List: |
| References | |
| FOIA-86-380, FOIA-86-A-118 QI-043, QI-43, NUDOCS 8608270272 | |
| Download: ML20206P647 (9) | |
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CONTROL NO. r.. -
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COMANCHE PE K RESPONSE TEAM l
QUALITY INSTRUCTION FOR ISSUE-SPECIFIC ACTION PLAN NO. VII.c PROCEDURE: QI-043 REVISION:
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l DATE OF ISSUE:
11/OS/85 i
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i REINSPECTION OF enMCRF*rr ne wrwrne 1
1 PR EPAR EI) !!Y:
RATE:
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APPROVED BY:MMAMMM Me DATEt_ ///t'//f" 1
ISSUE C093b1$AT(iR 4
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Q1-043 Rev. 1 g
1.0 PURPOSE This instruction provides the methods and accept / reject crfteria for the perforcance of reinspection of concrete placement.
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i 2.0 APPLICABILITY This procedure applies to the performance of an independent reinupection of a sample of concrete construction activities.
.It applies to the ' sample selected from 11 e concrete pours population which is described in the Population I? ascription for Concrete Placement.
3.0 REFERENCES
r 8emo QA/QC-RT-487, dated Septemb'er 7, l'985* to A. Patterson 3.1 from R. H. Brown delinea' tin'g do~ umen'tati'o'n u' sed istdevelopment c
of piocedure, inc'luding specific sources for attributes and exclusions.
3.2 CPP-009, Performance of Reinspection and Documentation Review.
4.0 GENERAL t
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Reinspections are performed and documented in accordance with established CPRT instructions.
This inetructier establishd * *.u actributes and accept / reject criteria for the reinspection of accessible concrete construction attributes.
Reference 3.2 addresses the method to perform and document the reinspection.
5.0 INSPECTION PROCEDURE For each placecent consisting of separate structural < clements (walls, slabs, etc.), a separate checklist shall be included for each of these elecents. Tolerances indicated are i unless noted otherwise.
"ihe following attribut es are to be inspected per Attachment 6.1.
All measurements shall be dorie with a steel tape or wood ruler as required, in increments of 1/8 inch.
-Notatiens made by the inspector per requirements in this procedure for plate numbers, attribute deviations, etc.
should generally be made on the applicable drawing included in the verification package and identified in the remarks column of the checklist.
y When additional space is required for remarks on the checklist, use
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Ql-043 Rev. I
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5.0 INSPECTION PROCEDURE (Cont'd) 1.
Location of:
A.
Walls, columns, piers, pedestals, curbs, pads:
Determine the location of walls and curbs by measuring two opposite terminal points on one face, relative to an adjacent column line.
Dete rmine location of tunnel valls in terms relative to the center lines of tunnel Determine the locettion of c61nmns, piers, pedestals, and pads by measuring two adjacent mid point faces relative to a pair of orthogonal column lines.
For elements in the Containment Building, locations shall be determincd relative to a radial column line
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and the center of the Containment Building or to a defined rectangular grid system.
Verify that, for the points indicated, locations cre within the following tolerance of the locations required by the design drawings:
For columns, piers, pedestals and pads less I
than 24" (any face); 1".
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For columns, piers, pedestals and pads 24" and greater (any face); 2".
Walls and curbs; 2".
E.
Slabs:
Determine the elevation for the top of the slab at any 7
one point.
Mark location on the design drawing and verify that the elevation is within 2" of that shown on the applicable design drawing.
C.
Beams:
Determine the location of the beam as per the instruction for Attribute 1.A, for walls.
When the depth of the beam is the same as the slab thickness,.it shall be so noted on the checklist and beam location cannot be verifi'ed.
Verify that, at the points measured, the elevation of the top of the beam is within 2" of the elevation required by the design drawing. Verify that, at the
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points measured, the beam location is within the following toleranc 3 of the location required by the design drawing:
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vi v4 Rev-1 5.0 INSPECTION PROCEDURE (Cont'd) 1.
Location of: (Cont'd)
For beams f raming into piles and columns; 3/8".
For Beams framing into walls; 1/2".
2.
Size of:
A.
Walls, curbs, slabs:
Measure opposite surfaces through any two openings to determine thickness of the; element.
When only one opening exists, measure through single opening.
Where openings are not available, measure location of opposite surfaces for the element in accordance with Attribute 1 to determine element thickness.
Verify that the thickness of the element is not less than that required by the design drawing by more than the following tolerance:
Thickness less than 24":
-3/8".
Thickness 24" or more:
-1/2".
For elements with one surface inaccessible because it is backfilled or cast against earth, it shall be ::
noten on the checklist and size need not be determined.
B.
Columns, piers, pedestals, pads:
Determine the width of each face of the element by measuring across the face at any convenient elevation.
When this is not possible, determine the location of both adjacent faces according to the instructions for Attribute I; using these locations and applicable building dimensions, determine the width of the
- element, Verify the width of the element is not less than that a
required by the design drawing by more than the following tolerance:
Thickness less than 24":
-3/8".
Thickness 24" or more:
-1/2".
For pads, verify that the thickness is within the following tolerances of that shown on the design drawing:
Design pad height less than 6":
-1/4", + 2".
Design pad height 6" to 12":
-1/2", + 2".
Design pad height over 12":
-3/4", + 2".
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QI-043 Rev. 1 5.0 INSPECTION PROCEDURE (Cont'd) 2.
Size (Cont'd)
C.
Beats:
Determine the depth of the element according to Attribute 2.A.
Determine the width of the element according to Attribute 2.B.
For beams whose depth is the same as the depth of the slab, element width cannot be determined. This shall be so noted on the checklist.
Verify that the. depth and width of the element are not less than that required by the design drawing by more that the following tolerance:
Required dimension less than 24":
-3/8".
Required dimension 24" or more:
-1/2".
3.
Surface Inspection
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A.
Walls, curbs, columns, piers, pedestals, pads:
Inspect all accessible surfaces for honeycombing and voids.
(Inee.cassible curfaces atc chose casc agsinst earth, backfilled, or coated.)
If any formwork must be removed to perform'the surface inspection, note this information in the Remarks column.
Verify that honeycombing and voids which are visible do not expose any reinforcing steel, or exceeds the rebar concrete cover in the design drawines.
An observation of foreign material in the pour which could constitute a void in the concrete matrix exposing the reinforcing steel or exceeding the rebar concrete cover, shall be considered a deviation to this attribute.
B.
Slabs, Beams:
Inspect the underside of slabs and exposed faces of beams for honeycombing and voids per Attribute 3. A. In addition, verify that there are no unauthorized cold joints.
4.
Cored Roles:
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Inspect the entire accessible surface to identify cored holes.
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QI.043 I
Rev. 1
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5.0 INSPECTION PROCEDURE (Cont'd) 4.
Cored lloles:(Cont'd)
For each identified cored hole, verify that the Sole is approved per design drawings (including DCA's).
The location of the hole shall be within 2" in any direction of the specified locaticn.
5.
Cracks For beams and slabs, if in the insnector's judgement questionable cracks are evident, request an evaluation by the Level III inspector.
Otherwise, accept this attribute.
For any.such questionable cracks, the Level III inspector will, when requested, determine the acceptability of these cracks.
If the Level III believes the crack requires further engineering evaluation, then reject.the attribute, and write a deviation report.
Otherwise, the Level III will accept the attribute.
6.
Patches Verify that major patenes (concrete repairs that have resulted from NCR's) are sound by tapping with a 16 oz. hammer on the
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area of the patch, and comparing the resulting sound with the sound that results when tapping the adjacent concrete.
f ch';r E:lts A.
Verify that anchor bolts cast in concrete, for all equipment components and structures, have been installed as shown on the design drawings.
B.
Verify bolt size by measuring diameter. Verify that the bolt projection is within +!" tolerance of that shown in the design drawings.
C.
Verify that the bolt distance to the edge of the concrete is within 1/4" tolerance of that shown in the design drawings.
8.
Embedded Plates and Structural Shapes Verify that the mark number of all embedded plates / structural shapes match those shown on the design drawing.
If all"of the emb.edded plates / structural shapes mark numbers match those shown on the design drawings, accept the attribute.
If no mark numbers are visible, verify that the plate dimensiona agree with those chown on the design drawings.
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Q: im2 Rev. 1 5.0 INSPECTION PROCEDURE (Cont'd)
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8.
Embedded Plates and Structural Shapes (Cont'd)
Record on the design drawings the status (i.e.:
Mark Number not verifiable, accept, reject) of each inspected embedded plate / structural shape.
If any visible mark numbers (entire.nurber) match those shown on the design drawings, and there are no' incorrect mark
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the attribute is accepted.. Enter'the number of "Not Verifiable" mark numbers'in'the design drawings.
If one or mare mark numbers do not match those shown on the design drawings, the attribute is rejected.
a If an embedded plate) structural shape drawing 'bbt has not been. installed 'in 'theis shbwn on the" design field'/d6notwrite a deviation report and enter the number of such embedments in the design drawings.
j If an embedded plate / structural shape is i stalled 'in the field but not shown'en the' design drawing, mark the attribute
" reject" and write a deviation describing the as-built configuration, location.. mark number (if' visible)' and whether or not an attachment to the embedment has been made.
If an embedded plate / structural shape is located within 8 inches from the edge of concrete provide the ac-built la---'... in th; dceign drawing.
Also take note of any attachment to the embedment.,
If any plate is shown as a single plate on the design drawing, but has been installed in two or more pieces, rej ect the attribute and write a deviation report describing the as-built configuration, location and mark number (if visible).
Record all plate mark numbers on the design drawings.
9.
Cast In Place Insert Verify that all concrete cast in place inserts have been installed in the locations shown in the design drawings in accordance to the tolerances given therein.
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..1 QI-043 Rev. I 1
Page 1 of 2 CauMCuE rout RESPONSE TEAN CHECKLIST POPULATION CESC VERITICATION PKG NO.
< ONCRETE PLACDtENT QUALITT INSTRUCTION PACE 1 CF 1 d1-043 h REINSFECTION h UNIT I EQUIPMENT turk /IAC NO.
DOCUMENTATION REV11M
{ UNIT 2 h CONMON.
VE11f1 CAT 10N ACCIPT RfJECT DATE Location A.
Valls. Colus.ns.
Fiers. Fedestals.
Curbs, Pada
_B.
Stabs C.
Eeams
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2 Stre A.
Valls. Curbs.
l Slabs e
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B.
Columns. Pie rs.
Pedestals C.
Beses 3.
Surface Inspection A.
Valls Curbs.
Columns. Piers.
Pedestals. Pads B.
Slabs. hease d'
T P!tEFAR G ST:
APPEQVED ST:
_ DISCIPLINE ENCR._
IN5FEut.D BY: ^
DATE LEAD DISCIPLINE ENCE.
DATE AryROVED ST:
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- DATE LEAD INSPECTOR DATE CPPdM7. lA. Revis ton 0 0
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QI-043 Rev. 1 Page 2 of 2 I
COMANCHE PEAR SESPONSE TEAM
' CHECKLIST POFLU TION DESC VERIFICATION FKG NO CONCRETE PIACDtENT FACE - 0F -
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VERIFICATION ATTRIBUTE ACCEPT.
REJECT DATE RDiARKS 4
Cored holes s.
Crache A.
Patclics 7
Anchor Bolts A.
B.
C.
8.
Embedded Plates and Sttuctural Sha pes 9.
Cast in Place Inserts
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CFr n07 ts, Revision 0
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