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RE: Concrete Mix Design

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Just as a side note, ACI 318-08 now requires that the production facility strength tests be less than 12 months old.

Thomas Hunt, S.E.

"Richard Hess" <RLHess(--nospam--at)>
07/20/2010 04:33 PM
Please respond to seaint
RE: Concrete Mix Design

From what I have seen, usually it is Xeroxed from something done years before unless the engineer who approves it requires a wet stamp.  It is up to the engineer of record.
Richard Hess
From: fsrahbar(--nospam--at) [mailto:fsrahbar(--nospam--at)]
Tuesday, July 20, 2010 3:49 PM
Concrete Mix Design

In California, could the concrete mix design be signed by just a technician or does it have to be signed by a PE when submitted to the EOR?
Thank you,

Farzin S. Rahbar, SE

Vice President
David C. Weiss Structural Engineer & Associates, Inc.
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