Answer / sujit

If you use this sand or any other sand first you go
to sieve anaylisis & check finess mould as per IS
CODE.
Then use % sand as per nominial mix m20 or m25
or design mix

Answer / dushyant bansal

the amount of sandto be used depends on the mix design.

Answer / sajin m

As a thump rule coarse aggregate will be 0.9 m3 and fine aggregate ie sand will be 0.45 m3

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what else we can add rather than admixture in concrete to reduce the cement quantity?

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