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Re: Rebar Spacers in PC beams

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In a message dated 1/28/2005 11:39:12 AM Eastern Standard Time, writes:
This is fairly standard.  And yes, it may initiate some cracks, but with
that much steel in the bottom of a small (at least before they put the
slab on) beam, you're going to get significant shrinkage cracking before
any load gets on it. 
Maybe I am missing something,  but what is the connection between the amount of steel and the shrinkage cracking?
Gail Kelley