A detailed experimental programme was prepared to determine the slump value and air
content of fresh concrete mixes. The properties of hardened concrete such as compressive
strength and porosity at the ages of 3, 7, 28, and 90 days and oxygen permeability at the
age of 28 days were investigated. A total of 13 different concrete mixes were prepared
and the details of all the mixes are given in Table-1.