Correct option is D
In reinforced and plain concrete footings, the thickness at the edge shall be not less than150 mm for footings on soils.
In reinforced and plain concrete footings, the thickness at the edge shall be not less than150 mm for footings on soils.
The minimum density (g/cc) of corrugated and semi-corrugated asbestos cement sheets considered acceptable for construction purposes by the Indian standard is: