How much Strength of the cube can attain in 7days
comparative 28 days strength?(as per IS code) ( specify the
ref.clause also)
Answer Posted / hemanta ku.das.(tuv-sud)
Sp-24,page no-20 ,give this formula to find out the different grade of concrete for different age
t
Ft = ............... *F28
a+ (b*t)
a=4.7,b=0.833. constant
t=time period,(days)
F28=grade of concrete.
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