Question

The main advantage of adding pozzolanas in cement is

• A. longer life
• B. reduced cost and permeability of concrete
• C. slower setting time
• D. faster setting time

Answer 1

The correct option is B reduced cost and permeability of concrete

Portland pozzolana cement is finer than ordinary portland cement and due to pozzolanic action,it improves the pore size distribution and also reduces micro cracks in transition zone and permeability reduces.