Answer / piyush singh

Water / Cement Ratio is to be selected from the is 10262 as per the Design Mix,

Also we can calculate the water cement ratio by Thumb rule

a) 28% wt of cement + 5% wt of aggregate

as for hydration of Cement 28% water is required by weight and 5 % extra is added to compensate for wetting of coarse aggregate

Answer / abiraj07

EXP:
 50Kg cement x 0.50 =27.5 litrs

Answer / toto1704

Thumb rule:
Water required = 28% wt. of cement + 4% wt. of aggregate
Water required = 30% wt. of cement + 5% wt. of aggregate

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