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| document type = TECHNICAL SPECIFICATIONS & TEST REPORTS, TEST/INSPECTION/OPERATING PROCEDURES | | document type = TECHNICAL SPECIFICATIONS & TEST REPORTS, TEST/INSPECTION/OPERATING PROCEDURES | ||
| page count = 32 | | page count = 32 | ||
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Latest revision as of 23:34, 12 December 2021
| ML20138M839 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak, 05000000 |
| Issue date: | 07/11/1984 |
| From: | Bielfeldt L, Dunham F TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | |
| Shared Package | |
| ML20138M609 | List:
|
| References | |
| FOIA-85-59 QI-QP-11.4-27, NUDOCS 8511040446 | |
| Download: ML20138M839 (32) | |
Text
- - -
y ' ' .C' NU BER r REVISION f ,' PAGE TEXAS UTILITIES GENEMATING CO. '
- CMU '.
QI-QP-11.4-27 f 6 JUL 11198'4 1 of 32 l PREPARED BY: Y M ' / 7-/d-[ :
i I
MTE INSPECTION OF CONCRETE i N
- SUBSTRATE SURFACE ! APPROVED BY
- ( 6pis;r o I'/6Y ! e g7g '
+ APPLICATION AND REPAIR APPROVED 8Y: //j,,// k y-pe.pg
" \ /; ' /) DATE
1.0 REFERENCES
1-A Gibbs and Hill Specification 2323-AS-31, " Protective Coatings" 1-B QI-QP-11.4-28, " Protective Coatings Inspection Travelers" i 1-C CP-QP-16.0, "Nonconfonnances" 2.0 **mt !
l COU10!.!.ED COPY
! 2.1 PURPOSE AND SCOPE C0h'IROLIlo. R ;r g A This instruction shall describe the methods used by @allty U Control personnel while perfoming inspections of appitca-tion of coatings on a concrete substrate inside the Reactor l
Containment Building, Unit 1.
3.0 INSTRUCTIONS Visual inspection of surfaces as addressed by this instruction,shall be made at approximtaly an am's length .
from the surface being inspected. The area of inspection shall be adequately lighted during the ppction activity.
- Adequate 11 hting is defined as the mi mum Itght produced by a two (2 0-cell battery flashlightF .'tT Visual aids fabricated on site and ap roved by @ality Assurance and Engineering may be used b Inspectors as an aid in the perfonnance of their inspections.
For definitions reference Attachant 6.
If a conflict arises between the requirenents of triis l arocedure and the requirements of the site specification, i Ref. 1-A, the requirenants of the site specification shall l prevail.
0511040446 851016 PDH FOIA CARDE85-59 PDH ,
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..g INSTRUCTION ISS M PAGE REVISION
- TEXAS UTILITIES GENERATING CO.
,O OI-QP-11 4-27 6 JUL 111984 2 of 32 3.1 SURFACE PREPARATION Under nonnal conditions, the concrete surface shall be allowed to cure a minimum of 28 days prior to application of rotective coatings. However, if the coatings are to be ,
app'ied to pour backs, grouting, or patching to which NUTEC 10 has been applied as a curing conpound, coating application may be perfonned after a minimum of 6 days has elapsed from .
NUTEC 10 application time. Repaired abandoned Hilti bolt holes, tie holes, unacceptable spalled concrete, grout under base plates dich have 3 square feet or less of exposed grouted surface to be coated, may be coated if Nutec 101's applied as a curing canpound and the Nutec 10 has cured in accordance with Section 3.1.1.7. Abandoned Hilti Bolt holes and tie holes may be coated af ter initial setting of the patch if no curing membrane is used. If other curing methods are ut1 Tired for cosmetic patches or grout under base plates as stated above, coating shall not proceed until 7 days cure has elapsed. .
. O 322 ^=aiicatioa or "utsc to curiaa ca aou"d (if aaac=6'a) 3.1.1.1 The QC Inspector shall verify that the areen concrete has been cleaned.
P "J.1.1.2 The QC Inspector shall verify the coating applicator is qualified per Section 3.3.5.
3.1.1.3 The QC Inspector shall verify that NUTEC 10 is not applied under inclement conditions and that the surface temperatures are above 50*F. Anbient conditions shall be verified per .
Section 3.3.1. Areas of visible moisture or standing water are unacceptable (Reference Attachment 6).
3.1.1.4 NUTEC 10 shall be mixed per Paragraph 3.2. The NUTEC 10 has a pot 11fe of (1) one hour at 75'F. If the NUTEC 10 gives the appearance of crawling and does not penetrate the concrete, the material shall be renoved fran the concrete by solvent and a clean cloth. All the expired material, shall be discarded. .
3.1.1.5 Pot life above is the reconmended time and should be utilized as a guideline for coating time, actual pot Ilfe is detennined by the applicability of the coating. This -
applies to thinned and unthinned coatings.
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INSTRUCTION IIOUE PAGE !
REVISION ^
TEXAS UTILITIES GENERATING CO.
CPSES QI-QP-11.4-27 6 jy{,111934 3 of 32 Nutec 10 may be applied by spray, brush, or roller. If spray l 3.1.1.6
" " ~ '
application is used, the QC Inspector shall verify that the InlTEC 10 air supply shall be in accordance with Section 3.3.3. '
-- - ht;1.7 Cure times for Nutec 10 is as follows: ,
_ . ~ . . ...
70*F - 09'F -- 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> 90*F and above 18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br />
( '.. ,
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3.1.2 Preblast cleanina Goerations .
t Prior to surface preoaration, the QC inspector shall ,
visually examine the surface to be water blasted for heavy deposits of oil and grease. Any heavy oil or grease deposits shall be removed.
l
' The QC inspector shall also verify that any detrimental surface irregularities such as projections, fins or ridges l !
' , . ', are reoved. t NOTE: The problast visual inspection is required '
only den surface preparation is by one of l
the following methods:
- a. Idater b asting
- b. lister blasting with sand injection
' c. Dry sandblast'ng
- d. Bush hamering 3.1.3 MethMs of Surface Pranaration .
) dater blasting, water blasting with sand injection, acid ,
etching, sand blasting, and power tooling are all acceptable l methods of surface preparation. If fulTEC 10 curing membrane j has been applied and gives a " glossy" appearance, the, t NUTEC 10 shall be abreded to reove the glossy appearance, j i
If choical cleaning is performed on the concrete substrate, i the QC Inspector shall verify that the surface is flushed :
clean with water.
)
3.1.4 post Surface Prenaration onorations ;
After surface preparation, the QC inspector shall visually [
examine the surface to verify the followingt ;
The surface shall be free of construction dust, f a)
Iaitance, and loose deposits, and all adjacent areas !
cleaned to avoid contarination. j t
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TEXAS UTILITIES GENERATING CO.
cesEs 4 of 32 QI-QP-11.4-27 6 yi g b) All holes greater than 1/2 inch in depth or greater than 2" diameter and cracks greater than 1/32 width are repaired prior to surfacer application.
c) All sharp projections removed, d) Martings (ink, pencil, chalk, felt tip marker, etc.) .
solvent wiped. .
. e) Marting paint removed.
f) Objects protruding from surface are ground or cut smooth until object is flush.
g) All loosely adhering embedded objects are removed, h) Embedded steel objects less than 4 square inches shall be power tool roughened and solvent wiped.
- 1) Metal objects larger than 4 square inches re primed.
j) Surface is free of grease, oil, and nonapproved curing membranes.
3.2 MIXING OPERATIONS 3.2.1 Materials A QC inspector shall verify on Attachment 5 that the shcif life has not expired.
3.2.2 Mixina/Thinnina An inspector shall witness all mixing / thinning operations Per Attachment 7. Induction times for finish mixes are shown in Attachment 2.
3.3 $URFACER APPLICATION .
The coating systen will consist of a surf acer Nutec 115, touch-up with Nutec 11 surfacer as required and a finish coat of Nutec 1201. In areas where the concrete surface to be coated exhibits only minor amounts of " bug holes" and surface imperfections, Nutec 11 and Nutec 1201 may be used without the use of Nutec 115 as primary surfacer.
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. .j INS ~RUCTION ISSUE PAGE REVISIOP. ^
TEXAS UTILITIES GENERATING CO.
j cesEs j QI-QP-11.4-27 6 jyt,111094 5 of 32 9
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Q 3.3.1 Ambient Conditions l The inspector shall sanitor the ambient conditions being
.. recorded on the Environmental L.og (Attachment 4) at the
-: " paint distribution point" inside Reactor Unit I. A l calibrated non-mercury filled thermometer or a l
calibrated taperatu re reconter dry (bulb Bristol 4069 TH or '
equivalent) shall be used for air taperature detemination.
, i A calibrated non-mercury filled wet bulb thennometer or a
! calibrated humidity recorder (Bristol 4069 TH or equivalent) shall be used to detennin,e relative humidity. The dew point shall be detennined by the difference in dry and wet bulb taperature using the U.S. Department of Commerce Weather Bureau Psychrometric Tables W.8. No. 235. When dry bulb readings are greater than 100*F, the dew point and relative '
! humidity should be detennined using the 100'F reading (note in Remarts section). The surface temperature shall be
! detennined by placing a calibrated Range 0-250'F themometer or equivalent in contact with the surface to be coated. The j
thermometer probe shall remain in contact with the surface untti the taperature reading stabilizes.
~
Mintam and maximum values of surface and ambient i ., temperatures shall be 50'F and 100'F respectively.
! Infrequent dips in temperature to 40'F is pennissible during
- application and/or cures however, the elapsed time the
> temperature is below 50'F shall be added to the cure time.
l l Application of the coating shall not begin unless the I ! Surface temperature is 5'F above the dew point.
i l
Humidity may vary as high as 1005 however, free standing water shall be removed. Coating application over a damp surface is pennissible. Under no conditions shall NUTEC 115
- or Nutec 11 be applied to a surface containing free standing water. (Reference Attachment 6).
3.3.1.1 Documentation of Environmental Conditions
- a. The Inspector assigned to the " paint distribution point" in the Redctor Building shall, as a minimum, take a complete set of read'ngs (air taperature relative humidity, dew point and surface temperaturef on each floor elevation at least three (3) times each ,
shift (preferably, the beginning, mid point, and just t
prior to the end of each shift). More readings may be j taken when necessary (i.e., noticeable change in air
' taperature, request by field inspector to take readings in a specific area, etc.).
4
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- t INSTRUCTION '80UE PAGE
, REVISION i TEXAS UTILITIES GENERATING CO.
8 cesEs a QI-QP-11.4-27 6 JUL 111984 6 of 32 l t I
- b. The Inspector at the " paint distribution point" shall document these readings on Attachment 4 as follows:
- 1. The Inspector shall fill in the applicable information as delineated on the fo rm, excmt Ar f the " Report ho. ". ("se Report No. will be dilled in by the Paper Flow -
- Group when they assign numbe rs, prior to transmitting to the QA vault.)
- 2. Upon cepletion of the shif t the inspector shall turn all of the Environnental Log $heets for that shift into the lead inspector (s).
- c. The lead inspector (s) shall review the log sheets for empleteness and correctness, sign and da te the "QC Review" block, obtain copies for QC reference and I transmit the originals to the Paper Flow Group.
- d. If at any tine the inspector detemines readings which do not emply with the parmeters set forth in this
< procedure, he shall proceed in the following manner l
- 1. Immediately take an additional set of readings in the immediate area of the first set of unacceptable readings and record the on the Enviromental Log.
- 2. If the additional set of readings are acceptable, take a third set of readings for referee purposes and record them. If the referee set of readings are acceptable, then the area in cuestion
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'f ISSUE j PROCEDURE NUMBER REVISION DATE PAGE TEXAS UTILITIES GENERATING CO. 22 of 32 CPSES QI.q p.11,4-27 6 JUL 111984 i.
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ATTACHMENT 2 SHELF AND POT LIFE REFERENCE SHEET _
Material Shelf Life Nutec 11 Base & Curing Agent 12 months Nutec 115 Base & Curing Agent 12 months Nutec 1201 Base & Curing Agent 12 months Thinners and Sand Filler Unlimited
~~
POT LIFE NUTEC 11 AND NUTEC 11S t.0.
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NUTEC 1201 24 ::
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- 41 5 no :
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4 -E 7 ....i....i....ti...i.,,,1.,,,1,,,,I .. I,,,,1.,i,ti.. li...I S0* 6c* To* Bo* 90* I00*
T&MPl5ES#um *F INDUCTION TIMES FOR NUTEC 1201 l Teno. (*F) 50-59 45 min.
60-69 30 min. 1 70-79 20 min. )
80-90 10 min.90-100 None ,
TUGCO CA l
PROCEDURE ISSUE PAGE REVISION DATE NUMBER -
TEXAS UTILITIES GENERATING CO. 23 of 32 QI.gp.11,4-27 CPSES 6 JUL 111994 ATTACHMENT 3 PART I Allowed Points of Discontinuity Table Total Allowable Number of Points of Discontinuity Surface Area (so. ft.)
1 Up to 10 -
2 10-50 5
50-100 10 100-500 15 500-1000 25 1000-5000 No gross discontinuities are acceptable.
PART Dry Film Thickness Detemination Usino Wet Film Thickness
- ~ ~ - - Readings and the Percentaos (f.) Volume Solids Percent volume solids for unthinned concrete coatings are as foilows:
NUTEC 11 - 781 NUTEC 115 - 885 NUTEC 1201 - 54%
EXAMPLE: 11 mils WFT X 54% = 5.94 mils DFT For thinned mixes:
Volume of unthinned coating X 5 Volume Solids = Volume of unthinned coating + Volume thinner i
% Volume Solids (unthinned) t.
NOTE: In above equation, volume must be expressed in the same unit of measure, d
TUGCC CA
INSTRUCTION ISSUE PAGE RWISION DATE
. NUMBER TEXAS UTILITIES GENERATING CO.
CPSES JUL 111984 6 24 e 32 QI-QP-11.4-27 ATTACHMENT 4 ne. ort no.
Sheet of sheet _
Sheet Number ENVIRO M ENTAL LOG SHEET MATE f's Elevation 81dg.
Date Shift Unit TIME DRY BULB WET BULB SURFACE TEMP. HUMIDITY DEW POINT INSPECTOR STEEL CONCRETE 4
I QC REVIEW signature gate
/
i TUGCC CA
INSTRUCTION ISSUE PAGE l REVISION DATE NUMBER
. TEXAS UTILITIES GENERATING CO.
CPSES QI-QP-ll.4-27 6- JUL 111984 25 of 32 4 ATTACHMENT 5 4
W PA!NT MII SLIP Report No.
Oldg.
s DATE POT LIFE SHIFT TIME MIX NUOMER ELDATION I MTERIAL GAL. M!IED
! $NELF LIFE ACCEPATELE: TES NO MTE f
- S 6
- OATE & TIME MIIED BASE CUR!leGAGENT' FILLER THIMMEk ACCEPTED SY DATE POT LIFE SHIFT TIME MII NUMBER ' ELDATION MTERIAL GAL. ft!IED SHELF LIFE ACCEPTABLE: TES NO MSTE d'5 .
OATE & TIME MIIED IASE CURING AGO T FILLER THINNER ACCEPTED BY l
OATE POT LIFE SHIFT .T!ME MII NuMcER ELDATION MTERIAL GAL. M!IED SHELF LIFE ACCEPTABLE: YES NO MTE f'$
DATE & TIME MIIED BASE CURING AGENT FILLER THINNER 4
ACCEPTED SY QC REVIEW & ACCEPTAMCE
. sIgneture oa te
- b Meme Na,1 l
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o , t.: i PROCEDURE ISSUE PAGE REVISION DATE NUM8ER i i
- TEXAS UTILITIES GENERATING CO. as of 32
- - CPSES QI-QP-11.4-27 s JUL 111"84 h
r ATTAONENT 6 DEFINITIONS
! Color and Gloss Nonunifonnity: A milky haze or mist in the finish '
of a recently applied coating.
Contaminant: A foreign substance, inadvertently added to a coating or found on the substrate that adversely affects the application, i
adhesion, curing and/or subsequent perfonnance of the applied coating.-
' Dry Spray: A dry powdery primer or finish coat readily reoved by light sanding with either sandpaper or a wire screen. A minor
- amount of adherent dry spray is acceptable on the final finish coat.
Feathering: An area that is roughened and tapered to obtain a smooth and continuous surface with an existing damaged coating.
Fisheves: Small openings (" fish eyes") in wet film ekposing old -
' surface or previous coat.
Free Standing Water: May be identified by:
- a. Reduced viscosity of the surfacer during application, and excessive sagging from . bug holes.
'. b. Wet rings around bug holes.
- c. Visible signs of surface water.
- d. Running hand over the surface resulting in moisture on the i
hand.
- e. Product instability resulting in white streaks.
- f. Failure of the surfacer to adhere to the substrate during the 4
' sqeegeeing or troweling process.
Full Hidino: The coating provides sufficient coverage so that the precocing coat is not readily visible with an unaided eye.
i Holiday: A pinhole, skip, discontinuity or void in coating film.
i Laitance: A fine, ditish accumulation on concrete surfaces. It con-sists mainly of cement particles that were carried Theby water resulting rising to the surface of freshly placed concrete.
{
i concrete surface is unsuitable for proper adhesion or bond of 6 subsequent fillers or protective coatings.
j Monitor: Confonnance verification by physically observing a task being I
perfonned on a periodic or random basis.
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-l V TEXAS UTILITIES GENERATING CO.
q[.qp.11,4-27 27 of 32 CPSES 6 JUL111984 j
1o j =
3 Muderacking: Irregular cracking as in a. dried mud puddle.
A moderste Orance Peel: Dents in the surface resembling orange skin.
amount is acceptable.
.i
- Over Soray: A deflected spray mist that settles on dry or partially dry coated surfaces.
Pinholes: Minor discontinuities in coating which expose primer or
~
substrate.
Verify: Confinn or make certain.
Visual _:
To examine with an unaided eye (correctional eye glasses or contact lens are acceptable).
e 4
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.! ' ISSUE PAGE PROCEDURE REVISION 3 NUMBER DATE M'
TEXAS UTILITIES GENERATING CO.
QI.qP-11.4 27 28 of 32 j) CPSES 6 Jul.111984 l
4 4
ATTAOMENT 7 PREPARATION OF COATING MA1ERIALS t Surfacer Coat The sarfacer NUTEC 115, is packaged in a three ccaponent The 4
.i kit consisting of a base, curing agent, and filler.
base and curing agent shall be thoroughly mixed first. If
'} necessary, box tne mixture to assure that all the base and a
- cure has been used. The filler shall then be slowly added ,
under constant agitation and mixed until a smooth blend is achieved. The patching material, NUTEC 11, is prepared the same way. Partial mixes for NUTEC 115 shall be in accordance >
with Attachment 7A. No provision is given for partial mixes of NUTEC 11.
r
.l Finish Coat t
The finish coat, NUTEC 1201, is a two camponent epoxy i topcoat consisting of a base and cure. These shall be thoroughly mixed under constant agitation until a homogenous
~j i blend is achieved. Partial mixes of NUTEC 1201 shall be in accordance with Attachment 78. Minimum induction times a
shall be as per Attachment 2. '
fi SEALER / CURING COMPOUND
' The sealer / curing campound, NUTEC 10, is normally a two camponent material consisting of a base and a curing a third agent.
component d If applying to surfaces below 60* F,
) accelerator may be used. Slowly mix by power agitation or
.i by hand the entire volume of the cure caponent with the 4
i entire volume of the base component. If an accelerator is used, add the prenessured portion to the base-cure mixture
]
s and agitate slowly. Avoid rapid agitation which may result in air entrapment. Thinning may be performed by adding from j '
10-40% by volume #0L-56 solvent. Do not vary mixing proportions.
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' TEXA8 UTluTIES GENERATING CO. ~
CPSES 29 of 32 l QI-QP-11.4 27 6 JUL 111994 3
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' ATTACHMENT 7A d
TABLE FOR PARTIAL MIXING OF NUTEC 11s "
I awf98 ~7Ts l
8488 Cust FILLEA es. Ibs. es. sts. es.
lbs. es. Its.
10.8 0 6.3 3 0 0 f I.d O est. . 1 Ot.
12.6 6 0 0 3.2 O sel. . 2 Ot. I 5.1 0 3 9 o' o 4.a
- # es t . d- -2 On- 1 15.7 1 .
10.2 9.3 12 0 0 6.4 1 Gal. . 0 Qt. 2 1 15.5 15 0 0 8 I Gal. . I Ot. 3 4.8 1 15.4 2 $.9 18 0 0 9.8 I tel. . 2 Ot. 3 4 9.9 2 12.2 21 0 0 11.2 1 est. . 3 Ot.
3.6 24 0 0 12.8 ,
2 sol. . 0 Ot. 1~ 4.8 3 19.0 3 2.9 27 0 0 14.4
! 8e1. . 1 Ot. I 18,2 30 0 0 16 2 Gal. . 2 Ot. 6 9.8 3 4.2 4 S.S 33 0 1 1.6
! est. . 3 St. 7 14.7 4 11.8 34 0 1 3.2 l 3 Gal. . 0 Ot. 1 9.3 5 2.2 39 0 1 4.8 3 Gal. . 1 Ot. 8 r
3.8 5 8.1 42 0 I s.4 3 Osl. . 2 Ot. 9 3 sal. . 3 04. 9 14 5 14.8 48 0 I l3 i
_ 4GIsl. .~ 0 Ot. 10 9 8 S.1 de 0 I l1.6 3.9 6 11.4 $1 0 1 11.2 4 sal. . I 48. 11 14.1 7 1.8 14 0 1 12.0 4 est. . 2 Ot. 11 5.0 7 8.1 97 0 1 14.4 ,
4 est. . 1 Ot. 12 i 14.4 to 0 2 0 1 Gal. . 0 Ot. 13 3.2 7 l
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INSTRUCTION REVISION ISSUE pggg
- NUM8ER DATE
- . TEXAS UTluTIES GENERATING CO. ~
- CPSES QI-QP-il .4-27 6 JUL111984 30 of 32 ATTACHMENT 7B TABLE FOR PARTIAL MIXES OF NUTEC #1201 I Maxinum Base Cure Permissible ,
Thinner
- Gal. Qts. Ibs.oz. Ibs.az. qts. oz.
0 1 2 96 0 5.4 0 9.6 0 2 5 3.2 0 12.8 0 19.2 0 3 5 14.4 1 3.2 0 28.8 1 0 10 8 1 8 1 G.4 1 1 13 1.6 1 14.4 1 16 i -
1 2 15 11.2 2 4.8 1 i'5. 6 1 3 18 4.8 2 11.2 2 3.2
- 12.8 2 0 20 14.4 3 1.6 2 2 1 23 3 3 0 2 22.4 2 2 26 3.2 3 14.4 3 0 2 3 23 12.8 4 3.2 3 9.6 3 0 31 6.4 4 9.6 3 19.2 3 1 34 0 5 0 3 28.8 3 2 36 9.6 5 6.4 4 6.4 i
3 3 39 3.2 5 12.8 4 16 l
4 0 41 12.8 6 3.2 4 25.6 4 1 44 8 6 8 5 3.2 4 2 47 0 6 14.4 5 12.0 4 3 49 11.2 7 14.0 5 l22.4 11.2 ,6 l0 1
5 0 52 4.8 7 l
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3 INSTRUCTION REVISION PAGE ;
,i NUMSER 0 j
' . ,I ' TEXAS UTILITIES GENERATING CO.
cPsES JUL 111984 33 of 3,
- . Ql-QP-ll.4-27 6 ATTACHMENT 8 l
4 1
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INSTRUCMON ISSUE PAGE
- RWISION DATE NUM8ER TaxAs unurias a NaRAVNG CO. '
CPSa3 QI-QP-11.4-27 6 JUL 111984 32 of 32
' ATTACHMENT 8 (Continued)
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L . ;
- o i
t
' t. ,
i .
i lb l a
- m.x ,
ammi sea ,
i 4
-.-en-, -, ,w-g-_,,,.,--w-- _ , _ , , , , , , . , _ . . _ , - _ , . . - , , _ . - . . - _ . , . , , , - . - - -_
- , . . , . _ - _ . , . , , . - - - - , - . _ - - . - , - - - _ , - , - - - . . -