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Re: 1937 VA job- rebar and concrete strength

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CRSI has a free document that shows the various grades and strengths of rebar through the years.  Look for:

Evaluation of Reinforcing Bars in Old Structures (EDR48)

at the following web site:

Thomas Hunt, S.E.

"Andrew Kester, P.E." <akester(--nospam--at)>
05/01/2008 01:24 PM
Please respond to seaint
"seaint" <seaint(--nospam--at)>
"Harold Sprague" <spraguehope(--nospam--at)>
1937 VA job- rebar and concrete strength

I am doing a job in a VA hospital in VT built in 1937. This is the second time I am doing a job there, did one 6 years ago with my old company. They gave me some of their files from when I worked on it the first time. I used f'c=2500psi concrete strength and fy=33000psi rebar strength the first go-round. They have a more involved peer reviewer, a PE, who wants some justification. I am searching on my own right now, I want to guess Nels or Harold or somebody sent me a PDF or something they had in their libary for the rebar values...
Andrew Kester, P.E.
Principal/Project Manager
ADK Structural Engineering, PLLC
1510 E. Colonial Ave., Suite 301
Orlando, FL 32803

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