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High slump mix design

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Title: RE: Pile Design

f’c=5,000psi

Slump = 9.5”

3/8” pea gravel

 

This is for heavily congested with rebar and architecturally exposed columns and walls. I have already told the architect that 3/8” max aggregate will cause extra shrinkage cracking.

 

Is there a higher potential for honeycombing with a 1” max aggregate and 6” slump?