potential similar-size gap in an expansion joint isn't?
Ralph Hueston Kratz
www.rhkse.com
Sent from my iPhone 3G
On Jun 26, 2009, at 12:16 PM, Stan Caldwell <stancaldwell@gmail.com>
wrote:
> Shrinkage of concrete during curing seems to me to be one of those
> fuzzy areas of structural engineering practice. Perhaps some of you
> can help shave the fuzz.
>
> We have to design a small concrete floodwall on top of an existing
> levee. The wall will be about 300 ft. long, 12 in. thick, and 2 to
> 3 ft. tall. Joint spacing will be based on shrinkage, and joint
> width will be based on thermal expansion (101 dF in Dallas today).
> Back to the shrinkage problem, this is a flood protection wall so we
> do not want any cracks. We are thinking of 20 ft. joint spacing,
> but are having trouble justifying this choice, or any other, based
> on available literature.
>
> Any thoughts?
>
> Stan R. Caldwell, P.E.
> HALFF Associates, Inc.
> Richardson, Texas
>
>
>
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