Highway Engineering - Engineering

Q1:

To prevent movement of moisture from subgrade to road pavement at the same level as that of water-table, thickness of a cut off layer of coarse sand, is

A 15 cm

B 20 cm

C 30 cm

D 45 cm

E none of these.

ANS:A - 15 cm

Coarse Sand : 15cm.
Fine sand : 76cm.