Question

The quantity of coarse aggregate required for RCC (1:3:6) for 20 cubic metres of work is ________

(a) 18.24 m^3

(b) 15.23 m^3

(c) 24.87 m^3

(d) 32.45 m^3

The question was posed to me in my homework.

The query is from Labour and Rate Analysis in portion Rate Analysis, Estimation and Costing of Construction & Building Materials

Answer 1

The correct choice is (a) 18.24 m^3

Easy explanation: The ratio 1:3:6 is for cement, sand and coarse aggregate. Therefore, the quantity of coarse aggregate required for RCC (1:3:6) for 20 cubic metres of work is [6/(1+3+6)] x 1.52 x 20 m^3 i.e. 18.24 m^3.