ML20140F161
| ML20140F161 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 07/05/1983 |
| From: | Williams H TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | |
| Shared Package | |
| ML20140F059 | List: |
| References | |
| FOIA-84-487 QI-QP-11.4-24, NUDOCS 8507080173 | |
| Download: ML20140F161 (5) | |
Text
{{#Wiki_filter:.. ~..... C (. l REVISION l ISSUE l INSTRUCEON PAGE {EXAS UTtuTIES GENERATING CO. NUMBER y l CATE CPSES JUL 0 5 553l; 1 of 5 QI-QP-11.4-24 5 i b[ 7 Er PREPARED BY: REINSPECTION OF DATE // M )', ' A 7/r// 7, PROTECTIVE COATINGS ON CONCRETE SUBSTRATES APPROVED BY: FOR WHICH DOCLNENTATION CA E IS MISSING OR DISCREPANT ,/ ' (([J d APPROVED BY: ,/ p OATE ~
- 0R 50RMAE01 DLY
1.0 REFERENCES
l 1-A Nonconformance Report Numbers C-81-01613 and C-81-01823 1-B CP-QP-18.0, " Inspection Re' ports" 1-C CCP-40, " Protective Coating of Concrete Surfaces" l-0 QI-QP-11.4-10, " Inspection of Concrete Substrate Surface Preparation and Coatings Application and Repair" (' l-E CP-QP-15.0, " Tagging System" f.E HlSTO EThk8 2.0 GENERAL 2 2.1 PURPOSE AND SCOPE This instruction shall describe methods to be utilized by Quality control in the measurement of dry film thickness (DFT) and adhesion to concrete substrates of existing concrete coating applications described in Reference 1-A I using the Mark II Tooke Gage and the Elcometer 105 Adhesion Tester respectively. The above tests are destructive in nature which will necessitate a repair of the coating system at each test location. 3.0 INSTRUCTION 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 performed as indicated therein.
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(- ~ - ~ ' =~ e = f (Y INSTRUCTION REVISION ISSUE PAGE TEXAS UTILmES GENERATING CO. - !f CPSES QI-QP-11.4-24 5 JUL 0 51983 2 of 5 . f- .t' 3d ';9, 3.1 TOOKE TEST (SCRATCH TEST)
- lJ The scratch test of the REACTIC 1201 finish coat shall be j
performed.using a Mark II -Tooke Inspection Gage equipped l' wi th a 2x. tip. Five separate readings spaced randomly over each finish coated area of 100 square feet or less shall be '[] taken. NOTE: Tooka tests are not required to be performed on areas of concrete which have not been finish f coated with REACTIC 1201. 1 j Acceptance Criteria ~' ~ The acceptable range for dry film thickness of the REACTIC 1201 finish coat 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 each 500 square feet or less of concrete surfaces which have been previously coated with surfacer only (NUTEC 11 or 115) 4 or with surfacer and finish coat (REACTIC 1201). A f calibrated Elcometer 106 Adhesion Tester shall be used to verify that the minimum acceptable tensile strength of adhesion of the coating to the concrete substrate has been obtained. For test areas of 300 square feet or less, each test shall consist of three (3) dollies randomly spaced and tested to failure. For test areas greater than 300 square feet but less than or equal to 500 square feet, each test shall consist of. one (1) dolly tested to failure for each 100 square feet or fraction thereof. EXAMPLES: 1. For test area of 450 square feet, test 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 3 dollies to failure. %g, TUGCO oA
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'. !c. t I f INSTRUCTION ISSUE REVISION PAGE TEXAS UTILITIES GENERATING CO. QI-QP-11.4 24 5 3 of 5 t 7 JUL 0 5 1963 '. 'J i h
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Acceptance Criteria: ,} The minimum acceptable strength per dolly shall be 200 psi. yyj If a dolly should fall the minimum strength criteria, the (~ following additional testing shall be performed: . ~, : Four (4) additional dollies shall be adhesion tested at , 3 approximately one foot from the failing dolly and spaced radially at approximately 90 degree intervals. If any of
- I the additional dollies fail the minimum strength criteria,
'I additional dollies shall be placed and tested *as indicated 5 }8 above, until area of loss of adhesion is isolated; this area (s) shall be ' removed to the substrate, and new coatings J} applied in accordance with Reference 1-C. $d NOTE 1: In the case in which all of the additional dollies ll pass the minimum strength criteria, test failures f on any of tne original three (3) dollies shall nevertheless be documented as " unsatisfactory" on .j ( the IR. 1 } 3.3 STATUS INDICATORS [! During bacifit activities when items are unsatisfactory and could inadvertently be recoated with the unsatis factory condition remaining, a reject tag shall be used in accordance 7' wi th Reference 1-E. A reject tag shall be placed on the J 'j area referencing the unsatisfactory Inspection Report number 2 and applicable NCR number. -) .Li 3.4 REPAIRS t l Repairs of each coated area which has been destructively 1 tested per Sections 3.1 and 3.2 shall be perfonned in a accordance with Reference 1-C and inspected in accordince I with Reference 1-0. I 3.5 COCUMENTATION q 3 1 Results of all inspections described in Sections 3.1 through 3.2 shall be documented on an Inspection Report, Attachment 1 1, in accordance with Reference 1-B. I Fom,eo. g --e.,, . ~ ~ - -.-rv
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~ c.':. - r e D. INSTRUCTION ISSUE RNSION PAGE t NUMBER DATE TEXAS UTILITIES GENERATING CO. QI-QP-11.4-24 5 JUL05 1932 l' al- .1 ~ M 3.6 MAPPING A For each IR generated in accordance witn Section 3.4, a sketch 1-shall be-attached to indicate the location and size of the h applicable coated concrete area (See Note 1). The individual sketches from each IR shall be used to prepare composite maps J.3 which shall cover in scope a specific room, compartment, H quadrant, or cavity within the Reactor Containment Buildings. The;IR number shall be transferred to the applicable area on .~ ~ the composite map in order to provide traceability to the IR. .1 -i The composite maps shall be maintained by the QC Supervisor, .l 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 Pemanent Plant Records Vault. g 1 3 NOTE 1: The following parameters (as necessary) should be e considered for descriptions of test areas on the ~ j. sketch. k a. Bottom and Top Elevations (vertical and 'i diagonal surfaces) or Elevation of Surface ] (horizontal surfaces). n
- 4 b.
Dimensions in relation to Azimuths, column -l - lines, reactor centerline or other components a of known location. -;] c. Whether concrete substrate is wall, ceiling, floor, beam or column. { d. Quadrant, compartment, cavity or room in j which inspection area is located. 4. j e. Unit number. j f. Relation of surface to Cardinal Directions .I (i.e. North, South, etc. ). 1 k i 1 I .i TUGCO OA
e r.o L.. g/' I INSTRUCTION I E REVISION PAGE NUMBER g i ,1 TEXAS UTILITIES GENERATING CO. h (' CPSES QI-QP-11 4 24 5 JUL 0 5 ES3 5 of 5 4 1 I ATTACHfENT 1 -l l ll' CCM AN CHE PEAx STEAM ELECTRIC STATICN wm er j INSPECTION REPCRT gm PROTECTIVE CCATING ).ct.h r.r. CAT.c= ac. [rsT[m / sTawcnas acs. cur.c= artw otscmate srte.ac, arv. inu. c4 ;cc. e esv. a cum mo. w a.=E cm.ua tw. ics.u. e yQI.QP-ll.4-24.Rev. O 7,gityT, O 7,*,,,,,,,, &,,c3,,,,, Ol" T. &,trcirpora e 4M8P. A1:4A.T s j O -ecnaa co ae.rrco..u. mei.a ircus 34rwiercar '"*'55'o" O iasac:tica co=urco. u seriv eroav irrus ustro scu. so tfru ao* oC INSPECTICN ATTRlgyTE$ 3 caTE siem&Tunt 2 .z - E o ( I O SURFACER ONLY OFINISH COAT I i i t l l l l l 1. I PeM'orm Tccke test per Pars. 3.1 to detemine tnickfiess l 11 1 l in mils of finish coat. (Document one set of reactngs j l l 2 l for each ICO square feet or less.) l l l l REC no: I. I i l '( l 1 1 2l 3 4 5 l l l l
- j I mn. cFT l
l ll I ! Max. cFT l l l 6 i j i Avg. DFT l L l 1l l l l i l' i l Circle individual unacceptable readings, i ll l l l l }
- 2. l Perfom Adhesion Test per Para. 3.2.
(Cocument three j jl l
- i 'I i readings for each 300 so. f t. or less. Document one l l l
lS f I addtttonal reading for each 100 sq. f t. or fraction l l l '-{ l thereof in excess of 300 sq. ft.A g gl l l OCLLY #1: i ll l I DCLLY 82: l l l l l DOLLY f3: I i l l
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c0LLY 84: i Ii l I cou.r es: yi l 1 I 'l l l =e==s o.a.s c:s, em l.R. CLO3C C ( I'*"# oC +4 W ;rQn 1 'o i '[g TUGCC CA Agent No.1 ' ~. S
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