HOW TO MIX M20 GRADE CONCRETE BY HAND? USING BOND.

Answer Posted / mdzaki uddin

1.6/5.5=.29*1440+417.6/50=8.35 bags of cement (1.6 is factor,5.5is ratio example m20 1+1.5+3=5.5,1440 =cement volume
sand=o.29*1.5=0.435 cum then 0.435*35.32=15.36 cuft,
course aggegate=0.29*3=0.87cum then 0.87*35.32=30.72cuft



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