Answer / om prakash

water cement ratio .40 to .45

Answer / dharmendra barot

.15*.15..15*2500=8.43 kg
For M20 grade  1:1.5:3
Water cement ratio is  0.45
Cement required  4.86 kg

4.86*0.45=2.2 ltr

Answer / amit

max w/c ratio for mild weather=0.55 & for moderate=0.50
cement quantity for 150mm cube is=(0.15x0.15x0.15x1/5.5)=0.00061kg...since grade of M20=1:1.5:3

Answer / karthik

Cement - 0.02916kg

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