Answer Posted / ashok sakhare

M20 ratio is 1:1.5:3

(i)Total motor wet = 1+1.5+3= 5.5
(a) Volume of aggregate = 35.5*1.57= 0.856m3 Dry motor/ Cum
(b) volume of sand =1.5/5.5*1.57= 0.3
428m3/ Cum ( Dry motor)
(c) volume of cement =1/5.5*1.57 =( Dry cement) 0.285m3*1440=399 kg.
399/50kg= 7.99bags/Cum

(note: 1.57 for 1m3 Dry motor)

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