ML20138N861
| ML20138N861 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak, 05000000 |
| Issue date: | 01/26/1978 |
| From: | Gary Arnold IMPERIAL PROFESSIONAL COATINGS |
| To: | |
| Shared Package | |
| ML20138M609 | List:
|
| References | |
| FOIA-85-59 205-1-78-G, NUDOCS 8511060081 | |
| Download: ML20138N861 (17) | |
Text
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205-1-78-G
- TITI.E COMPATIBILITY OF RES X with NUTEC #115 SURFACER FOR Comanche Peak Steam Electric Station CUSTO5tER TEXAS UTILITIES Submitted by: cerald E. Arnold Approved: g bv Date: January 26, 1978 SOUTHERN ISIPERIAL COATINGS CORPORATION. INC.
P. O. Box 29077
- New Orleans. Louisiana 70139 Phone: (504) 214-1433
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Page 1.
w SUM:4ARY - Extensive testing was conducted to determine if Imperial's NUTEC filS surfacer is compatible with Burke's RES X concrete curing compound. Based on results of E1cometer adhesion and Design Basis Accident testing, it was concluded that the RES X is a dissipating membrane only if exposed to the ultraviolet rays of sunlight or to heat. Without these agents, the RES X remains on the conrete indefi-nitely. On porous wall surfaces the RES X penetrates easily leaving no appreciable surface film to interfere with the chemical adhesion of the NUTEC 411S to the concrete. The floors, especially steel trowelled finishes, however, pose a problem because of the lack of porosity and the build up of a RES X flim on the surface. This film is incompatible with the NUTEC filS and must be removed by physical means, specifically a high pressure water blast, sand . blasting, or a combination of the two methods. ,
"* INTRODUCTION _ - Testing of Burke's RES X was performed at the request of Brown & Root in connection with the Texas Utilitie..' Comanche Peak Nuclear Power Plant. RES X is a dissipating concrete curing membrane consisting of a solution of resinous solids and petroleum solvents.
We RES X film, aacording to literature, disintegrates by oxidation.
ary for this reaction to occur.
Heat and ultraviolet rays are read rates are necesg/
200ft. gallon for rough surfaces and Reconsnanded 200 - 300 ft. sg/ gallon for smooth and steel trowel finishes.The pur-pose of this test was to determine if NUTEC #ilS is compatible with RES X.
MET!!OD -
- 4) E1cometer adhesion (cinder blocks) l RIS X was applied to two 35" x 7" 2" high density cinder I blocks at a spread rate of 200 f t.,g/ gallon.The RES X was i cured in the laboratory at 70 - 80 r. and 45-65% R.H.
NUTEC 011S was applied to one block af ter 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> and to the second block after 30 days. No surface preparation was performed between coats. Both specimens were topcoated with REACTIC 01201. Three high strength aluminum dollies were applied to each specimen and removed with an E1cometer adhesion tester following sufficient cure of the coating system. Tests were conducted in accordance with Imperial Test Method 03. For comparative purposes, 2 control speci-mens were coated with the I. perial system only.
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Page 2.
- 1. Application and curing Data +
PRODUCT SAICH $ Date Applied "F./% R.H. DFT (inches)
(24 leur intercoat time - MS X/NUTEC 0115)
MS X 10/31/77 - 1:50 p.m. 84 70 200 f t.2jg,g, NUTBC 6115 L5150/2671/ 11/1/77 - 1:00 p.m. 80 75 .020 = .025 La148 NUTEC #11 L3150/2671/ 11/4/77 - 8:00 a.m. 70 72 .005 .001 2149 MAcTIC 3070/2568 11/7/77 - 9:30 a.m. 71 69 .006 .009
- 1201 Dollies applied 11/9/77 Dollies removed 11/14/77 (32 day intercoat time - MS ,X/NUTEC ells)
MS X 10/31/77 - 1:50 p.m. 84 70 200 ft. /gni.
NtfrEC #11s $386/3388/ 12/2/77 - 9:00 a.m. 70 64 .020 .25 M148 MACTIC 3070/2568 12/8/77 - 5:00 p.m. 67 71 .003 + .005 01201 Dollies applied 12/13/77 Dollies removed 12/16/77 1
- 2. Panel designation Panel # System us X/NUTEC ells intercoat time 3448 11S/11/1201 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> 3464 M3 X/118/11/1201 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> 3449 118/1201 32 days 3465 M3 X/113/1201 32 days N -
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b) . E1cometer adhesion (concrete coupons) '
MS X was applied to four 2" x 4" x 2" concrete coupons m prepared i accordance with sechtel CP954, at a spread rate t of 100 f t.g/ gallon. The p X coated coupons wre cured in
- the laboratory at 70 - to F. and 45-65% R.M. No coupons were coated with NU15C 9115 af ter 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />. The remaining specimens were surfaced after 50 days, following a 3000 pai water blast which was achieved using a Graco sulldog (30
- 1) '
and a .043" tip. All concrete blocks were topcoated with
- REACTIC 41201. One high strength aluminum dolly was applied
- to each specimen by means of an epoxy resin-type adhesive and removed with an E1cometer adhesion tester following sufficient cure of the coating system and adhesive. Tests were performed as directed by Imperial Test .%thod 03. .
Control specimens were also coated with the Imperial system only. The. concrete substrates were allowed to stand for 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> arwi 50 days as were the RES X coated specimens.-
- 1. Application and Curing Data ,
PPODUCT BATCH e Date_ Applied F./%R.M. DFT (inches)
(48 hour5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> intercoat time - PES X/NUTEC Slls RES X 11/17/77 - 1:00 p.m. 78 65 100ft.2j ,3, NUTEC tilS L3150/2671/ 11.19.77 - 11:00 a.m. 72 70 .018 .024 LB148 REACTIC 2467/2491 11/26/77 - 10:00 a.m. 74 58 .005 .007 01201 I
Dollies applied 12/1/77 Dollies removed 12/3/77 (50 day intercoat time - RZ3 X/NUTEC 4113)
RES X 11/17/77 1:00 p.m. 78 65 100ft.2j ,L, NUTTC $118 3227/3228/ 1/9/78 11:00 a.m. 78 67 .018 .022 3229 PEACTIC 2467/2568 1/12/78 10:00 a.m. 58 66 .004 .006
- 1201 Collies applied 1/13/78 Dollies rensved 1/16/78 I I i
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3493 638 48 heere IIene (118/1201)
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.' 3494 647 48 heure llena j; (11s/1201) l 3495 801 50 days 3000 pet water f (11s/1201)
, 3494 861 50 days 3000 pet water I (118/1201 !
i 3825 602 44 heure alone i
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3824 See 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> O<' ',
(RBS X/118/1201)
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l 3527 793 50 daye 3000 pet water !
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r l e) Elseester adhesien (senerete coupone) l rete eeupons were coated with Ras X at Four 2*rate x 4"ofa 2Sgit.
2" esq/ gallon. The specimene were stored in f
- spread ,
q darknees at 70-00 F. and 45-454 R.N. for 120 daye prior to the appliestion of the nest aset. Wtr!BC ells was applied to each eeupon following a 100 pei sempressed air blast. One high strength aluminum delly was applied to seeh specimen directly to the ella surfaeor by means of an epoey resin-type adhesive. Se seesive was allowed to eure for 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />. Se deities were -
removed with an Eisenster adhesion tester and the force required I to remove the dellies and the mode of failure were recorded.
l The Bloometer adhesten testing wee performed on the smooth i l surface of the senerete coupone. -
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- 1. Application and curing Data .
PRODUCT BATCH 4 Date Applied F./% R.H. DFT (inches)
- pas x 8/8/77 8:00 a.m. 81 87 250ft.2jg,g, NUTEC #113 3384/3388/ 12/10/77 9:00 a.m. 58 38 .020 .025
', Ls149
- 2. Panel Designation Lab. Panel # Concrete $ RES X/011S Intercoat time 3283 163 120 days 3284 171 120 days 3285 172 120 days 3284 188 120 days d) Design Basis ' Accident concrete coupons previously used in adhesion tests (see b) 2.)
were submitted to Coastal Science Associates for an autoclave screen test designed to simulate Loss of Coolant Accident temperature and pressure condjtions. The maximum temperature and pressure obtained was 307 F. and 57 peig respectively.
All specisnens were inspected within one hour of their removal from the autoclave for signs of visual damage and then " sounded" by tapping with a solid instrument to determine if any disbond-ing had occurred at the substrate.
- 1. Application and Curing Data 8ee b) 1.
- 2. Panel designation Lab. Panel # System RES X/115 Intercoat Data submittod time for testing 3493 #112/1201 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> 12/12/77 3525 RES X/113/1201 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> 12/12/77 3495 4115/1201 l 50 days 1/16/78 3527 RES X/115/1201 50 days 1/16/78 1
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1
'< RESUI.TS -
1 a) E1 coaster adhesion (cinder blocks)
J Panal S System Intercoat Force Required Failure
- l time to remove dolly mode 9 .
'., 3444 115/11/1201 24 hrs a) 250 psi 100% concreta (Control) b) 200 psi -
1004 concrete c) 300 psi 100% concrete 3464 RES X/113/ 24 hrs a) 50 psi 95% 115/ con-11/1201
- crete.
54 concrete
~
b) 100 psi 904 11S/ con-crete.
104 concrete c) 250 psi 100% concrete 3449 11S/1201 32 days a) 450 psi 100% concrete (Control) b) 600 psi 100% concrete c) 200 psi 100% concrete 3465 115/1201 32 days a) 50 psi 90% lis/ con-crete.
~~
los concrete
~
- b')"l'00 psi 904 US[ cot-crete.
10% concrete c) 100 psi 904 113/ con-crete.
10% concrete DISCUSSION - Cinder blocks used were of high density concrete. Although the susTe is rough, the porosity is low and the RES X accumulates on the surface as a film. This adhesion test denenstrates that PES X cured under laboratory conditions without heat or ultraviolet rays has deteriorated very little, if any, thus resulting in poor adhesion of the NUTEC filS to the substrate. Excellent adhesion was obtained with the control specimens.
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- Page 7.
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(V) b) E1cometer Adhesion (concrete coupons) ,
9 Er
- 1 i Panel # System Intercoat Surface Force required to Failure Mode I
- time Preparation Remove dolly
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Y 3493 11S/1201 48 hrs Noner 450 psi
- 100% concrete e
3494 11S/1201 48 hrs None 800 psL* 100% concrete d
h _
3523 PES X/115/ 48 hru None 500 psi
- 50% concrete
- i. 1201 504 113/ concrete 5
1 3526 RES X/11S/ 48 hrs None 500 psi
- 90s concrete 1201 104 11S/ concrete 3495 113/1201 50 days 3000 psi 450 psi" 100% concrete water 4
3496 11S/1201 50 days 3000 psi 300 psi ** 100% concrete water t
4 3527 RES X/11S/ 50 days 3000 psi 700 psi'* 100% concrete 1201 watee
. t 9 )-
3528 RES X/11S/ 50 days 3000 psi 450 psi ** ,80s concrete 1201 water 204 11S/ concrete
,-
- Adhesion tests perfomed on simulated wall surface.
" Adhesion tests performed on simulated floor surface.
DISCUSSION - Specimens 3493, 3494, 3525, and 3526 represent adhesion tests on simulated wall surfaces. Even though the RES X had cured only 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> penetration into the porous concrete was sufficient to allow the NUTEC 11S to bond to the substrate. The values obtained (500 psi for both specimens) indicates good adhesion of the ils to the concrete, however, the mode of i failure (some disbonding between the ils and the concrete) reveals a
!} decrease in the bonding that is not normally observed with the NUTEC 113 I. surfacer. Note that in all control specimens failure occurred 100% in the
- concrete.
Specimens 3495, 3496, 3527, and 3528 represent adhesion tests on simulated floor surfaces. The surface tested is smooth and porosity is low. The RES X was allowed to stand for 50 days prior to the application of the NUR C 113. Because the test coupons were stored in the laboratory under controlled conditions, any appreciable dissipation of the RCS X film was unlikely. The improvement in adhesion is due to the 3000 psi water blast used to remove the RES X film. Both RES X specimens exhibited good adhesion values with the majority of the failure in the concrete. Coupon v3528 demonstrated approximately 20% adhesion loss between the ils and the RES X sealed concrete, indicating the water blast did not remove all of the residue on the surface.
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-1 T.R.0205-1-78-G i Page 8.
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j v' c) E1cometer adhesion (concrete coupons) 4
.0 7 Panel # System Intercoat Time Force required to Failure !bde 4 remove dolly w
il 3283 RES X/115 120 days 700 poi ---
100% concrete
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3284 RES X/113 120 days. 350 psi 100% concreta 3285 RES X/113 120 days 200 psi 1004 11S/
,, concrete 3286 RES X/113 120 days 400 psi 100% 11S/
concrete l
DISCUSSION - The results here are inconsistent, two specimens exhibiting
- excellent adhesion and the remaining two demonstrating poor bonding between I
the NUTEC 11S and the RES X sealed concrete. Specimens 3283 and 3284 were originally designated for other testing. The concrete coupons had previously
$t (18 months) been treated with a 14 Silane solution which may have promoted l
adhesion.
l .
Coupons 3285 and 3286 may better represent the potential problems on steel trowelled floors. The adhesica tests were performed on the smooth surface of each coupon. The smoothness of the concrete is a result of the method l in which the coupons are prepared. In this case, the surface tested was very smooth and glossy thus simulating a steel trgwelled finish. The RES X was cured for 120 days in the laboratory at 70-80 F. and 45-65% relative humidity, with no exposure to sunlight (ultraviolet rays) . Prior to the application of NUTEC 11S only a 100 psi compressed air blast was used to remove any dust or other contaminants which may have accumulated over the four month period. The E1cometer testing indicates very poor adhesion of the ils to the RES X sealed concrete. Therefore, it can be concluded that i
the RES X film will not disintegrate without heat or ultraviolet light.
f d) Design Basis Accident Panel # System Intercoat Time Results 3493 115/1201 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> No defects .
3525 RES X/11S/1201 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />
- Two " diameter areas of delamination - coat-ing intact.
, s 3495 11S/1201 50 days No defects 3527 PES X/115/1201 50 days No defects.
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T.R.9205-1-73-G
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- Me tested coating system was intact and no defects were visually discovered. .
However, upon " sounding" the specimen two areas of apparent delamination or d dishonding were noted. 21s finding was confirmed by removing the coating
] in the questionable areas with a sharp instrument to determines the degree 4
g; of dishonding.
1e DISCUSSION - This test demonstrates that if proper surface prieparation e ,.M.res are used to remove the RES X,. the adhesion of the N0'IEC 115 surfacer to ther concretar is assured.
i More importantly, specimen 3525 indicates that if the RES X film does not dissipate with time or is not removed by some physical means, an adhesion problem is inevitable.
_ CONCLUSIONS - Burke's RES X is a dissipating concrete curing membrane consisting of a solution of resinous (hydrocarbons) solids and petroleum solvents. As an intact film the RES X is a poor base for r;ubsequent coatings. 21s fact is substantiated by the results of this testing and is readily admitted to by the RES X manufacturer.
Se dissipation rate of.the RES X curing membrane depends upon oxidation
, resulting from heat and- ultraviolet rays. The length of time which the NES X is exposed is irrelevant the accumulative and quaatitative amount of sunlight and heat is important. Without exposure to the ultraviolet rays
.c of sunlight or heat, the RES X remains on the concrete ns a surface film and can only be removed by physical means.
Se major concern, therefore, is how effective the sur' ace preparation is in removing any remaining surface film. Whether or not a 7 day, 30 day, or 120 day dissipation period is allowed, is unimportant.. Based on laboratory tests, high pressure water (3000 psi) is sufficient t's remove the 'RES X and providing anadequate base for adhesion of the NUTEC Ils surfacer. The only time limitation that should be imposed is the 28 day cure i.sriod established by AC1 301.
The- main factor controlling build up of a surfacs film is the porosity of the concrete. Throughout the adhesion and DBA testin'g , simulated wall surfaces coated with RES X posed no compatibility problems because of the degree of porosity. Re RES.X penetrates well into formed wall surfaces, leaving no surface film to interfere with the adhesion of the NOTEC llS surfacer.
Despite this finding, high pressure water is rectanunended as a safeguard.
We simulated floor surfaces, especially very smooth surfaces with very little porosity, pose a definite problem. Because of the low porosity, penetration is impeded and a surface film is effeected. Without the natural breakdown of the film or prcper physical ~ preparation (e.g. waterblasting, sandblasting) to remove the film, poor adhesion of subsequent coating will occur.
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34 4-CN T.R.#205-1-78-G
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- Based on the results of the RES X testing program and discussions with Mr. Al Brownlee with Conspec Marketing and Manufacturing Company, the 4 following recounnendations are made. RES X should be applied to concrete O . __ -- - surfaces in accordance with the manufacturer's recoannendationn. Care O should be taken to avoid an unnecessary build up of RES X on the concreta, especially floor surfaces. D e concrete shall be allowed to cure a
'. minimum of 28 days as directed by AC1301. Prior to application of Imperial's coatings, 4000 psi water blasting, 2500 psi water blasting with sand injection, or sand sweeping shall be used to remove any remaining RES X. Adequate surface preparation shall be made by visually inspecting the concrete surface for " water beads". Beading of the water indicates the presence of the RES X and additional surface preparation will be required until this beading is eliminated.
REFERENCES - LAB. Notebook 56, p.p. 1-17 LAB. Notebook 33, p. 147 f
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COASTAL SCIENCE ASSOCIATES, INC.
- 6900 CANAL BLVD.
NEV ORLEANS, LOUISIANNA 70124
.) TEL. 504-283-7251
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, SUBJECTr DESIGN BASIS ACCIDENT COATINGS TEST REPORT. .
7 DATE: 12/19/77 DBA TEST CONDITIONS: HOUSTON LIGHT AND POWER,, SHORT TO 48 HRS.
SAMPLE NUMBER: 3493 SAMPLE TYPE: CONCRETE COUPON SAMPLE # DESCRIPTION
- =%L ...... ....................................................
3493 SIDE ONEt NO DEFECTS .
SIDE TV0 NO DEFECTS SIDE THREEt NO DEFECTS SIDE FOURt NO DEFECTS i
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i REPORT VRITTEN FOR: SOUTHERN IMPERIAL REPORT # 05712 977 e APPROVED BY . . . .' . n . . . . .N. ........
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" 6999 CANA1. BLVD.
NEW ORLEANS, LOUISIANNA 78124 m TEL. 504-283-7251 3
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, SUBJECTS- DESIGN BASIS ACCIDENT COATINGS TEST REPORT.
c .
f, DATER 12/15/77 -
HOUSTON. LIGHT AND POWER, SHORTENED TO 48 HRS.
DBA TEST CONDITIONSr 3525 SAMPLE TYPE: CONCRETE COUPON SAMPLE NUMBERE St.MPLE # DESCRIPTION 2 >
)
SIDE ONE: DELAMINATION, UPPER LEFT CORNER 3525 ,.
-- SIDE TWO NO VISIBLE DEFECTS, NO DELAMINATION SIDE THREE: NO VISIBLE DEFECTS, NO DELAMINATION SIDE FOUR NO VISIBLE DEFECTS, NO DELAMINATION.
REPORT VRITTEN FOR: SOUTHERN IMPERIAL 5
REPORT ~# 956121577 m d I APPROVED BY./,)). .h.* /. . .'.. .Y'. . . W gC . . . -
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" COASTAL SCIENCE ASSOCI ATES, INC.
6900 CANAL BLVD NEW ORLEANS, LOUISIANA 70124 TEL. 504-283-7251 i
SUBJECT:
DESIGN. BASIS ACCIDENT COATINGS TEST REPORT.
DATE: 1/18/78 DBA TEST CONDITIONS: HOUSTON LIGHT AND POWER, 24 HR. SCREEN TEST HIGHEST TEMPERATURE: CDEG. F) REACHED DURING RUN 307 SAMPLE NUMBER: 3527 SAMPLE TYPE: CONCRETE COUPON
- SAMPLE # DESCRIPTION 3527 SIDE 1
- NO DEFECTS SIDE 2r NO DEFECTS SIDE 3
- NO DEFECTS SIDE 4: NO DEFECTS 1
REPORT URITTEN FOR: SOUTHERN IMPERIAL COATINGS REPORT # 359011778 APPROVED Br... Z. @ J. d< w ...
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COASTA1. SCIENCE ASSOCI ATES, INC.
6903 CANAL BLVD.
NEV ORLEANS, LOUISIANA 70124
'd TEL. 534-283-7251 4
1 DESIGM BASIS ACCIDENT ' COATINGS TEST REPORT.
SUBJECT:
- )
+ DATE: 1/18/78 A
DBA TEST CONDLTICNS: HOUSTON LIGHT AND POVER, 24 HR SCHEFN TEST HIGHEST TEMPERATURE (DEG. F) REACHED DURING RUN 307 SAMPLE NUMBER: 3495 SAMPLE TYPE: CONCRETE COUPON
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$N' SAMSLE # DESCRIPTION 3495 SIDE l a NO DEFECTS e SIDE 2: NO DEFECTS SIDE 3: NO DEFECTS SIDE 4: NO DEFECTS 1
REPORT VRITTEN FOR: SOUTHERN IMPERIAL COATINGS REPORT s 059011778 APPROVED BY.... D ....
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