Question

Calculate the quantity of metal required for a 3.70  m wide Macadam road for one kilometre length for one layer of 8 cm compacted thickness.

(a) 444 cu m

(b) 565 cu m

(c) 454 cu m

(d) 765 cu m

I got this question in my homework.

My query is from Estimate of Metalled Roads in section Road Estimating, Sanitary and Water Supply Work of Civil Engineering Drawing

Answer 1

Correct choice is (a) 444 cu m

For explanation: Quantity of metal (loose) = 1000 m*3.70m*12 cm = 1000*3.70*.12=444 cu m

Volume of loose metal gets reduced 1/3 on compaction.