ML19268B931

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Submits Rept Re Insp of Ring Girder Repair on 730719.No Noncompliance Noted.Records Inspected:Concrete Placement & Strength Tests,Mill Tests & Reinforcing Steel Used in Placement Hoops for Cutout Spirals
ML19268B931
Person / Time
Site: Crane Constellation icon.png
Issue date: 08/31/1973
From: Beratan L
US ATOMIC ENERGY COMMISSION (AEC)
To:
US ATOMIC ENERGY COMMISSION (AEC)
References
NUDOCS 7910171008
Download: ML19268B931 (2)


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. The inspectica coR,octed by the writer on July 19,19N.5as to rettew the tha11ty Assurance records relative to the repir of W. Three

.To j Mlle 4tland, Unit 1 contatroent ring girder. The folloern records e dj were reviewed:

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1. Concrete placement and strength test recert

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Mill test reports and recoWs f the reinforcirs steel uset F..

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.;g to the replacement hoops for the cut out spiralt.

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1. The placement of the concrete was controlled such that the

., 4 concrete was placed la properly prepared and cleaned areas.

%h The areas were inspected to determine that 411 required

. reinforcem.nt was in place. -Laboratory reports of the long G].3

'.*:tusa breaking strength of the concrete was found to equal or J

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The conersta placement records indicated that the epoxy

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Just ahead of the concrete pcur. It remained tacky as

.h required while the lift of concrete was poured.

,,a Strain pses wre installed in the repatred seiction of the

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ring girder to monttw the stress levels. The installed

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pges have been testad and are functioetag.

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Cracks are being sonitored aM none have been fouM which M

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,.' ',.,". ;.,,,!,,.1% is my epiaten that,the ring $(irder has been repaired in an' c *.Wf*$.N%. %'?, f #,e.N.d *.YQ';4 [. k

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