EFFECT OF SIZE OF COARSE AGGREGATE ON PROPERTIES OF PERVIOUS CONCRETE

Pervious concrete is one of the most promising sustainable materials now a days. Pervious concrete is a zero slump, open graded material consisting of hydraulic cement, coarse aggregates, admixtures and water. It is sometimes referred to as nofines concrete. It is a special type of concrete having a high void content and is becoming popular due to its potential to reduce the runoff to the drainage systems. In this paper, the behavior of pervious concrete with different sizes of coarse aggregate is studied. Various mix proportions were prepared by using different sizes of coarse aggregates. The properties like permeability, porosity, density, strength and durability of pervious concrete are studied. The water cement ratio (0.31) and aggregate cement ratio are kept constant. The study is conducted experimentally for 7, 28 & 56 days. The mix proportion of coarse aggregate and its effect on properties of pervious concrete are studied and corresponding graphs are hence obtained.