ML19322C401

Requests Info Re Prestressed Concrete Primary Containment of Pressure & Tendon Tests.Requests Documentation of Response

ML19322C401
Person / Time
Site:	Crane
Issue date:	03/23/1971
From:	Dopchie H BELGIUM
To:	Beck C US ATOMIC ENERGY COMMISSION (AEC)
References
TASK-TF, TASK-TMR NUDOCS 8001160939
Download: ML19322C401 (1)

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DESCRIPTION lu quc 9t: sdvice ca tha perstrczced c cncrete pr!cary contain-For I'r. Ecck's s i;mtture at oI t.e fettro 'iihsa;e nuclcar pcwr statten Ln tel;bn

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DGPARTEMENT SGCURITG NUCLGAIRE WASHINGTON D.C.

20545 Nuclear Safety 02/018.

U.S.A.

PDDR' ORIGINAL

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Dear Doctor Beck,

I should be very much obliged if you could provide me wi.th some advise on the prestressed concrete primary;containtaent of the future Tihange nuclear power station.

The Tihange station, to be loca ted in the Meuse valley in Belgium, should have a net capacity of 870 MW-e, and be powered by a 2,660 MW-t P.W.R.

of the Westinghouse type.

The primary containment structural material should be prestressed 3

concrete, with an internal free volume of about 68,000 m. No special f ea tu re, such as ice-condenser, is provided.

The matter of concern is that the prestressing tendona are intended to be grouted by a cement mortar, and hence be unavailable f or periodical inspection during the life of the station.

Would you be so kind as to indicate if this grouting is generally considered acceptable by the U.S. A.E.C. If the answer is positive, I should appreciate a copy, or a reference, of any specification pertaining to the design, installation and quality insurance of such grouted tendons.

I am most grateful for any indication you would care to provide, and remain Sincerely yours

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