What is the range of water in M15?

Ultra-High Performance Concrete (UHPC), also known as __

Range of modulus of elasticity for UHPC _______

What could be the possible answer among the following for compressive strength of high strength concrete?

What is the percentage of steel fibre by weight in UHPC?

Water cement ratio is __

It ______ the quantity and _______ cost of sampling and testing.

Concrete having 28-days compressive strength in the range of 100 to 150 MPa.