LIFE CYCLE ASSESSMENT OF PERVIOUS CONCRETE AND COMPARISON WITH CONVENTIONAL CONCRETE

Abstract: Pervious concrete is a type of concrete with high permeability. It is used for concrete flatworks application that allow the water to percolate through it, thereby reducing the runoff from a site and allowing ground water recharge. The high porosity is attained by a highly interconnected void content. Typically pervious concrete has water to cementisious material ratio of 0.28 to 0.4. The mixture is composed of cementisious materials, coarse aggregates and water with no fine aggregates. Introducing of a small amount of fine aggregates will basically reduce the void content and increase the strength. Generally porous concrete is used in parking areas, areas with less traffic, residential areas. It is an important application for ground water recharge. The present project works on the study and comparison of mechanical properties, permeability and durability properties of different grades of pervious concrete (M15,M20, M25).

Keywords: Portland cement, Traffic congestion fuel economy, greenhouse gases.