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M 60 Mix Design Concrete In India

Is code method of concrete mix design procedure 1.Target strength for mean strength the target mean compressive strength at 28 days k a statistical value , usually taken as 1.65 s standard deviation for each grade of concrete table 8 of i.S.456 -2000.

Is 10262 2009 Concrete Mix Design Indian

Under step3,u have mentioned in the table that the standard deviation for design mix of the grades of concrete from m30 to m55 as 6,whereas the is-4562000 has specified the standard deviation 5 only for the above grades of concrete.Please verify and correct the same.

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