ML19256D134

From kanterella
Jump to navigation Jump to search
Requests Info Re Const & Insp Procedures for Mat Concrete Including Details of Pour Procedures,Quality & Depth of Insps,Quality of Cleanup & Form Placement & Outline of Finalized Repair Program for Concrete Voids
ML19256D134
Person / Time
Site: Crane Constellation icon.png
Issue date: 01/06/1969
From: Dromerick A
US ATOMIC ENERGY COMMISSION (AEC)
To: Engelken R
US ATOMIC ENERGY COMMISSION (AEC)
References
NUDOCS 7910170613
Download: ML19256D134 (1)


Text

P00R BRIGNAl R. H. Engelken, Assistant Director for Inspectica & Enforec=cn:

Division of Cocpliance THRU:

S. Levine, Assistant Director for Reactor Technology, 071.

CTROPOLITXi EDIS0:1 COMFrlY (THREZ !!ILE ISLKiD), DOCCT #50-28)

CO:;CRETZ VOIDS AT TZ' DON GALCRY Division of Compliance Inquiry Menorandum 289/68-A of December 17, 1968, mentions concrete voids near three tendons in the tenden gallery of the containment building, apparently caused by scrap vood and mud bein7 present in the forms at the time of concrete place =ent.

It appears that, taken in therselves, the observed voids.uith the dimensions given, can readily be repaired by some means such as the proposed epoxy cement grout witnout any question arising ns to the integrity of the in-place mat concrete.

However, these voids may indicate that the construction procedures or degree of inspection for the mat may have been inadequate. It would be desirable, therefore, to obtain the followin; informaticn:

l.

Details of pour procedure (number and sequence of pours, height of individual pours, etc.).

2.

Description of inspections carried out prior to, and at time of, pour, and the quality and depth of these inspections.

3.

Infor=ation as to the overall quality of cleanup and form placement.

4.

An outline of the repair program, when finalized.

A. 'J. Drororick, Chief RT-39A Containment & Component Technology 2 ranch DRL: CACTB t EGA Division of Raactor Licansing C. G. Lenk, DRL cc:

J. P. O'Reilly, CO Distribution:

L. Kornblith. Jr., C0 S upp l.

C&CTB Reading F. Nolan, CO DRL Readin:;

ADRT Reading tt.

S. Ecyd. EP1

's.

emcc, l......D. J. Skodolt E jgt.;jg'h3

.....D..R. L. :..C. j&.C..T. 3.. !..D.R..L..:.D

_D_RL..:..A..D..F.C....

m

. g..

G..dfD.d.t44V.S... 84QIp.1lllRIiCh...,.P3CQeY,oUQg,

eVine.,

SURNAM g g... * },,g*yi e

i

..g.;=gy= 97 age 73 eg

......j,

....g, R. C. DeYounc /- i onit > vorm.ac..ns m,t m 3.,_.,,.,, 7910170}}