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RE: 1923 Vintage CA Concrete Building

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Wait a minute, isn't that the ratio of cement, coarse aggregate and
sand?  Or was it cement, sand and coarse aggregate?  Then pour in enough
water for a workable mix?  My ol memory just won't go back that far.

Bob Garner, S.E.

-----Original Message-----
From: David Topete [mailto:davetopete(--nospam--at)yahoo.com] 
Sent: Friday, March 11, 2005 12:54 PM
To: seaint(--nospam--at)seaint.org
Subject: Re: 1923 Vintage CA Concrete Building

Could it be 1 part water, 2 parts cement, 4 parts
aggregate?
David Topete, S.E.
SF, CA
--- Eknrinc(--nospam--at)aol.com wrote:
> I am evaluating a 1923 California reinforced
> concrete building.
>  
> Plans call for 1-2-4 concrete mix, and deformed
> bars.
>  
> Anyone have information regarding design strengths
> used back then?
>  
> TIA
> 


		
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