Question

Workability of concrete is influenced most by its

• A. Water-cement ratio
• B. Aggregate-cement ratio
• C. Cement content
• D. Water content

Answer 1

The correct option is A Water-cement ratio

Workability of concrete is influenced by all given factors but it is most influenced by its water cement ratio.

The compressive strength of hardened concrete is inversely proportional to the water cement ratio, provided that the mix is of workable consistency, this is so-called Abram's law.
A reduction in the water cement ratio generally results in an increased quality of concrete in terms of density, strength impermeability reduced shrinkage & creep etc.