For the following questions answer them individually
What is the ratio of components in grade M20 concrete?
A. 1:3:6
B. 1:1.5:3
C. 1:1:2
D. 1:2:4
Which of the following statements is true?
A. Workability reduces with time.
B. Workability does not reduce with time.
C. Workability remains constant with time.
Modulus of elasticity of concrete, E is calculated using:
A) $$E=5000\sqrt{fck}$$
B) $$E=500\sqrt{fck}$$
C) $$E=50\sqrt{fck}$$
D) $$E=5\sqrt{fck}$$
