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Why we do design mix of concrete when there is nominal
method using the IS-Code available ?
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Answer Posted / neeraj
in nominal mix we consider only cement,agregate & water in
volumetric method and can achieve upto 25mpa crushing
strength .We also get big range in strength of same mix
whereas design mix we accuratetely implement reduction of
water cement ratio by use of plasicisers ,account for
desired temparature & achive strength upto 100mpa or more
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