IS 1199:1959 is for ________

According to IRC:15-2011, Minimum cement content for 4.5 N/mm2 characteristic flexural strength for PPC shall _____

IS code for Specification for Portland slag cement?

This cement content should ____ the cement content required based on durability criteria.

What is the approx. mix proportion for M15?

IS 1489(Part 2):1991 is for ________

According to IRC:15-2011 ___% Fly ash is required to be replaced with the total cementitious materials.

What is the approx. mix proportion for M25?