ML19312F001

Forwards Pittsburgh Testing Lab 800985 & 800986 Repts for Fine & Coarse Aggregates Respectively,In Response to NRC 791213 Request.Repts Give 6-month Results of ASTM C227 Mortar Bar Test Using High & Low Alkali Job Cement

ML19312F001
Person / Time
Site:	River Bend
Issue date:	05/06/1980
From:	Weigand J GULF STATES UTILITIES CO.
To:	Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19312E996	List: ML19312F001
References
RBG-7616, NUDOCS 8006180329
Download: ML19312F001 (5)

Text

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GULF STATES UTILITIES COMPANY Aos? CFFtCE Box 295: . B E a u Y O f. T TExA$ 77'04 AAEA CoCE 7: 3 939+663:

May 6, 1980 RBG - 7616 File No. 09.5 Mr. Karl V. Seyfrit, Director U.S. Nuclear Regulatory Cc==ission, Region IV Office of Inspection & Enforce =ent 611 Ryan Plaza Drive Suite 1000 Arlington, TX 76011

Dear Mr. Seyfrit:

River Bend Station - Unit 1 Docket No. 50 kS8 As requested in your letter of December 13, 1979, enclosed are copies of Pittsburgh Testing Laboratory (PTL) Report nu=bers 800985 and 800986 for fine and coarse aggregates respectively. The four re-ports snow the six month results of the ASTM C227 mortar bar test being performed using low alkali job cement and high alkali cement.

Ths six month results are +0.02 and +0.02 for fine and coarse aggregates respectively for job cement (lov alkali); and +0.03 and +0.02 for fine and coarse aggregates respectively for high alkali cement.

All are well within the acceptance limits of +0.05 for 3 month and +0.10 for 6 month test durations.

At this time we request year evaluation (as per your letter of December 13,1979) of our present alkali testing frequency (one test '

for each 500 tons of cement) in order that we might revert to the originally specified frequency (once for each 1200 tons).

Sincerely yours,

. G. Weigand vice President Operations & Technical Systems )

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REPORT OF POTENTIAL ALKALI REACTIVITY ASTM C227 AND C-289 FOR GULF STATES UTILITIES COMPANY STONE AND WEBSTER ENGINEERING CORP., AGENT P. O. BOX 217 ST. FRANCISVILLE, LA. 70775 PROJECT  : RIVERBEND Material  : Fine Aggregate Cement  : Job Cement Laboratory No.800984 Na20  : 0.16 K0 2  : 0.56 Total Alkalies 9 Na20  : 0.53 C-227 Average Length Change, Percent 14 Day 1 1 Month +0.01 2 Month +0.01

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19.3 C-289 Results (a) Wk k c::2 i

Reduction in Alkalinity, Rc(mm/1) 97.22

., Dissolved Silica, Sc (mm/1) 103.06 (a) According to Appendix X1.1.2 of ASTM C-33 the above Does appear to be potentially reactive - Verbal results to site 10-17-79.

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26 REPORT ATTACHED TO $5'N7I April 14, 1980 REPORT OF POTENTIAL ALKALI REACTIVITY ASTM C227 AND C-289 FOR GULF STATES UTILITIES COMPANY STONE AND WEBSTER ENGINEERING CORP. , AGENT P. O. BOX 217 ST. FRANCISVILLE, LA. 70775 PROJECT  : RIVERBEND daterial  : No. 57 Coarse Aggregate Cement  : Job Cement, Laboratory No.800984 Na20  : 0.16 K0 2  : 0.56 Total Alkalies 9 Na20  : 0.53 C-227 Average Length Change Percent 14 Day +0.01 1 Month +0.01 2 Month +0.01 3 Month +0.02 4 Month .

+0.01 5 Month +0.02 6 Month +0.02 12 Month Due 10/10/80 ,

Mixing water as percent Cement  : 24.6 i C-289 Results (a) l Reduction in Alkalinity, Rc(mm/1) 233.71 Dissolved Silica, Sc(mm/1) 566.67 (a) According to Appendix X1.1.2 or ASTM C-33 the above does appear to be potentially reactive - Verbal results to site 10-17-79.

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REPORT OF POTENTIAL ALKALI REACTIVITY ASTM C227 FOR GULF STATES UTILITIES COMPANY STONE AND WEBSTER ENGINEERING CORP., AGENT P. O. BOX 217 ST. FRANCISVILLE, LA. 70775 PROJECT  : RIVERBEND Material  : Fine Aggregate Cement  : North Hampton Type I H.A.

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04994 REPORT PG-12606 April 21, 1980 ,

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PROJECT  :

Material RIVERBEND

No. 57 Coarse Aggregate Cement  : Northampton Type I H.A.

Na20  : 0.38 K0 2  : 0.77 Total Alkalies 9 Na20  : 0.89 Average Length Change Percent 14 Day

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C Mixing water as percent Cement  : 24.0 S=>

Nuclear Document Control MAY 6 1980

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