1) is maximum size of aggregate ristricted to 20 mm for M-
50 grade concrete? If yess or no code the authority?
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Answer Posted / sagar sontakke
No,Aggregate size is indipendent of concrete grade.we can
use still higher size of aggregate.aggregate size is
depending on the minimum cover & spacing of reinforcement
in the structures like beam,retaining wall,column etc.This
is so because aggregate should pass through the two bars.
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