Answer / karthik rajendren

If its handmix,it contains cement - 6.40 bags,Sand 0.6
cum,Agg -0.90 cum + 160 Ltr Water
If its design mix add plasticizers in ratio of 0.3Kg/Bags
of cement to the above.

Answer / deepak katyal

Nominal Mix- M20
As per IS 456-2000
Weight of Aggregate per Cement bag-250kg
Cement- 50KG
Fine aggregate- 83.3 KG
Coarse Aggregate- 166.6 KG
Proportion-
Cement-1
Fine aggregate-1.67
Coarse aggregate- 3.34
Total Proportion- 1+1.67+3.34=6
Cement- 1.54/6*1440/50=7.39 Bags
FA- 1.54*1.67/6= 0.42 Cum
CA- 1.54*3.34/6= 0.85 Cum
Water- 30 liters per cement bag
= 30*7.39= 221 liters

Trapezoidal footing length = 2m , B=1.7m D=0.5m and d- 0.15m. Can anybody help and calculate quantity of concrete by explaining all formulas involved.

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