Structural Design Specifications - Engineering

Q1:

To achieve uniform colour and consistency of the concrete by using ordinary Portland cement, the mixing time may be

A
to 1 minute

B
1 to minutes

C
to 2 minutes

D
2 to minutes

E none of these.

ANS:C -

to 2 minutes

Clause 10.3.1 of IS 456 states minimum 2min.