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
Options
A. 15 cm
B. 20 cm
C. 30 cm
D. 45 cm
E. none of these.
Correct Answer
15 cm
More questions
1. The increased cohesiveness of concrete, makes it
Options
A. less liable to segregation
B. more liable to segregation
C. more liable to bleeding
D. more liable for surface scaling in frosty weather