While compacting the concrete by a mechanical vibrator, the slump should not exceed

Volume of coarse aggregate required to make 100m³ of 1:2:4 concrete is

The test conducted by Vicat's apparatus is for

When the concrete mix is too wet, it caused

After casting, an ordinary cement concrete on drying

Transport of concrete by pumps, is done for a distance of

Low heat cement is used in

The cement becomes useless if its absorbed moisture content exceeds