Question

Asphalt mastic has sand and asphalt in the ratio ________

(a) 1:4

(b) 1:3

(c) 1:2

(d) 2:1

Answer 1

Right option is (d) 2:1

For explanation: Asphalt mastic has sand and asphalt in the ratio 2:1. It is mixed hot and then laid in continuous sheets. The thickness of asphalt mastic for ordinary construction is generally 2.5 cm.