Question

What happens if zone 4 sand is used in concrete preparation?

Answer 1

This is 29% when FM changes from 2.0 to 3.0. That means we can get large advantage by using concrete having Coarse Sand. A well adjusted grading (all-inaggregate) of concrete mix is also suitable for pumped concrete produced through RMC Plant. This is achieved by using a sand having FM of around 2.5.