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RE: Increase of f'c over time

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If you're going to have empirical data regarding in situ concrete, what does
it matter? The strength is what it is, and it is not likely, even given a
wonderful correlation of actual to theoretical strength increase, to get any
stronger henceforth, the concrete's age being what it is.

So why do you even need to go down that road? I am confused.

William L. Polhemus, Jr. P.E.
Polhemus Engineering Company
Katy, TX, USA
Phone (281) 492-2251
FAX (281) 492-8203
email bill(--nospam--at)

-----Original Message-----
From: Barclay, George [mailto:GBarclay(--nospam--at)]
Sent: Friday, December 21, 2001 7:48 AM
To: 'seaint(--nospam--at)'
Subject: RE: Increase of f'c over time

During this
demolition, the client will take cores and test them. ...  he would like to
have some kind of backup study showing this increase of strength over a long
period of time does occur.

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