ML20140F173

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Rev 3 to Procedure QI-QP-11.4-24, Reinsp of Protective Coatings on Concrete Substrates for Which Documentation Is Missing or Discrepant
ML20140F173
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 06/29/1982
From:
TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
Shared Package
ML20140F059 List:
References
FOIA-84-487 QI-QP-11.4-24, NUDOCS 8507080185
Download: ML20140F173 (5)
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; fEXAS UnunEs GENERADNG CC. gq ,. REVIS!CN f PAGE

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CPSES ,

j QI-QP-11.4-24 ; 3 M 2 9 GSp 1 of 5 I

i PREPARED BY: 7 /.d =

l REINSPECTION OF

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ON EE U IES APPROVEDBY:/ Ne

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I i FOR.WHICH DOCUMENTATION : .'

g IS MISSING OR DISCREPANT ,

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1.0 REFERENCES

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1-A Nonconfomance Report Numbers C-81-01613 aito C-81-01823 1-8 CP-QP-18.0, " Inspection Reports" '

1-C CCP-40, " Protective Coating of Concrete Surfaces" l

.I 1-0 QI-QP-11.4-10, " Inspection of Concrete Substrate Surface  !

', Preparation and Coatings Application and Repair" {

2.0 k k8 F6u GENERAL W $9't L -

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2.1 PURPOSE AND SCOPE gh [

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This instruction shall describe methods to be utilized by '

3 I Quality control in the measurement of dry film thickness A (DFT) and adhesion to concrete substrates of existing 2  ; concrete coating applications described in Reference 1-A .

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using the Mark II Tooke Gage and the Elcometer 106 Adhesion Tester respectively. The above tests are destructive in I nature which will necessitate a repair of the coating system '

at each test' location.

3.0 INSTRUCTION l

For all coated concrete surfaces for which documentation is missing or discrepant, the inspection activities discussed in Paragraphs 3.1 through 3.2 shall be perfomed as  !

indicated therein.

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i 8507080185 850311 PDR FOIA l HUGES4-487 PDR ,

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l INSTRUCTION REVISION ISSUE PAGE DAW f TEXAS UTILITIES GENERATING CO.

O CPSES a QI-QP-11.4-24 3 JUN 2 9 :582 2 of 5 s

i 3.1 TOOKE TEST (SCRATCH TEST)

'; The scratch test of the REACTIC 1201 finish coat shall be performed using a Mark II Tooke Inspection Gage equipped

with a 2x tip. Five separate readings spaced randomly over each finish coated area of 100 square feet or less shall be

'taken.

NOTE:

Tooke tests are not required to be performed on areas of concrate which have not been finish ,

coatad with REACTIC 1201.

Acceptance Criteria The acceptable range for dry film thickness .of the REACTIC 1201 finish ccat is 3 mils minimum and 16 mils maximum.

In the event that any reading (s) is found to be outside of the acceptable finish coat thickness range, additional

( readings ,shall be taken to determine the extent of the i unacceptable area. Results of additional testing shall be documented in the " Remarks" section of Attachment 1.

} 3.2 ADHESION (PATCH TEST)

The QC Inspector shall perfonn an Adhesion (Patch) Test on

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y each 500 square feet or less of concrete surfaces which have j been previously coated .with surfacer only (NUTEC 11 or 115)

-; o_r with surfacer and finish coat (REACTIC 1201). A f calibrated Elcometer 106 Adhesion Tester shall be used to I verify that the minimum acceptable tensile strength of g adhesion of the coating to the concrete substrate has been obtained. For test areas of 300 square feet or less, each

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test shall consist of three (3) dollies randomly spaced and

tested to fatiure. For test areas greater than 300 square.
feet but less than or equal to 500 square feet, each test 4- shall consist of one (1) dolly tested to failure for each

. 100 square feet or fraction thereof.

7 EXAMPLES: 1. For test area of 450 square feet, test d

5 dollies to failure.

_, , 2. For test area of 350 square feet, test 4 dollies to failure.

  • 3. For test area of 100 square feet, test +

j i I 3 dollies to failure.

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INS CT ON I REVISION PAGE

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. CPSES

., QI-QP-11.4-24 3 JUN 2 9 1982 g 3 of 5 e

4 Acceptance Criteria:

The minimum acceptable strength per dolly shall be 200 psi.

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If a dolly should fall the minimum strength criteria, the i following additional adhesion testing shall be performed:

Four (4) additional dollies shall be adhesion tested at approximately one foot from the failing dolly and spaced radially at approximately 90 degree intervals. If any of -

the additional' dollies should fail the minimum strength criteria, the test results shall be promptly reported to Civil Engineering for evaluation and resolution. Test results on the additional dollies shall be documented in the 5

" Remarks" section of the IR.

NOTE 1: In the case in which all of the additional dollies pass the minimum strength criteria, test failures on any of the original three (3) dollies shall

( nevertheless be documented as " unsatisfactory" on i the IR.

j 3.3 REPAIRS y ..

, Repairs of each coated area which has been destructively tested per Sections 3.1 and 3.2 shall be performed in accordance with Reference 1-C and inspected in accordance

{ with Reference 1-0. ,

.' 3.4 DOCUMENTATION Results of all inspectiors described = in Sections 3.1 through 3.2 shall be' documented on an Inspection Report, Attachment 1, in accordance with Ref :rence 1-8. .

3.5 MAPPING For each IR generated in accordance with Section 3.4, a sketch

' shall be attached to indicate the location and size of the applicable coated concrete area (See Note 1). The individual sketches from each IR shall be used to prepare composite maps which shall cover in scope a spect fic room, compartment.

l quadrant, or cavity within the R'eactor Containment Buildings.

The IR number shall be transferred to the applicable area on i

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the composite map in order to _ provide traceabili.ty to the IR.

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INSTRUCTION NUMBER REVISION ISS.U.E. PAGE k i TEXAS UTILITIES GENERATING CO. DA'"

CPSES \ *

"j QI-QP-11.'4-24 3 JUil 2 9 1932 4 of 5 d

3 The composite maps shall be maintained'by the QC Supervisor, or his designee, until all surfaces applicable to this instruction within a given area have been reinspected and

. mapped. Each completed composite map shall be transmitted to the Permanent Plant Records Vault, a

NOTE 1: The following parameters (as necessary) should be

, considered for descriptions of test areas on the .

sketch.

a. Bottom and Top Elevations (vertical and diagonal surfaces) or Elevation of Surface (horizontal surfaces),
b. Dimensions in relation to Azimuths, column lines, reactor centerline or other components of known location.

(- c. Whether concrete substrate is wall, ceiling, floor, beam or column.

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d. Quadrant, compartmen t, cavity or room in
which inspection area is located.

j e. Unit number.

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f. Relation of surface to Cardinal Directions (i.e. North, South, etc.).

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.i . INSTRUCTION I REViplON NUMBER E PAGE

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' lQI-QP-il.4 24 3 JWl 0 9 G82 5 of 5  ;

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\1 ATTACHMENT 1 M

. COM AN CHE PEAK STEAM ELECTRIC S TAT 1CN n.cr- -e a

,s 4TTu Se 5CM587;0*s INSPECTION REPORT l* .

g aEIEM RF6CA M4 No. istsTEu s sT4wCTw2C CKs44AT4m PROTECTIVE COATING g ,l nr.a m., .ea,u. =a im. iw a c ow a es, a :. 44 no y l mum,as a im yQl.QP.il.424.Rev. , ,

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1 1 Perform Tooie test oer Para. 3.1 to determine tatekness i i l l l in mils of f tntsn coat. toccument one set of reasings l : l t i for eaca ICO souare feet or less.) l l l l ,

( l ACCORD: l !l l l 1 l 1 1 2l 3 4 l 1 l 1 I l I utn. en i I III i l Mas. CFT I I I i i l l

,,~ l Avg. CFT l l l i i i i{ ( l l l' l i I ?. I Ctecle Individual uracceptante readings. l { l l l Il l

' 4 2. I per*orm Acheston Test cor Pars. 3.2. (Occuaent Enree [ l 6 1

k. I readings for eacn 300 ss. f t. or less. Occ'oent J are 6 I i i i addittenal reading for esta 100 sq. f t or fraction l ! l l l triereof in excess of M sq. f t.1 l l l l r

l CCLLY #1: l l l l

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