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RE: Concrete shrinkage (was curing)

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I agree. But I am curious - what method do you use to get the concrete
supplier to provide "a uniform gradation on the coarse aggregates"? 

William C. Sherman, PE 
(Bill Sherman) 
CDM, Denver, CO
Phone: 303-298-1311
Fax: 303-293-8236
email: shermanwc(--nospam--at)

Harold Sprague wrote: 

> Related to this is my tendency to use polycarbonate 
> superplasticizers and a uniform gradation on the coarse 
> aggregates.  This is to minimize cement and minimize water.  
> The less paste in a mix, the better.  The aggregates do not 
> shrink.  Reactive aggregates are another story.

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