Answer Posted / sandy

suppose u have to do 1 cum b/w

now 1:5 c.m. and using fine sand (jamuna sand)

1+5=6

1/6 x 1440 x .292 = 70.07 kg
5/6 x 1525 x .292 = 371.08 kg

cement density 1440/cum
fine sand density 1525/cum

total volume for 1 cum b/w .292cum


so simple

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