The maturity method is a _______ approach to predict the early age strength gain of concrete.

Maximum size of aggregates are used to produce 100MPa compressive strength is ______

High strength concrete is defined purely on the basis ______

HPC is not used in high span bridges.

Gel/Space ratio = x = Volume of gel / Space available = 0.657 C / 0.319 C+ Wo. Here Wo stands for?

What is the approximate quantity of water in M5?

Use of HSC in column _______

Concrete having 28- days’ compressive strength in the range of 60 to 100 MPa.