Under normal conditions using an ordinary cement, the period of removal of the form work, is:

For finding compressive strength of concrete, the minimum number of cubes required is

The phenomenon by virtue of which the cement does not undergo large change in volume when treated with water, is known a…

The bulking of aggregate is due to

The cement becomes useless if it absorbed moisture more than

Higher workability of concrete is required if the structure is

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

For continuous transportation of concrete, the method used is