Date of Publication :7th October 2016

Abstract: Pervious concrete is one of the most effective pavement materials to address a number of important environmental issues, such as recharging groundwater and reducing storm water runoff. The amount of general purpose Portland cement has been reduced by introducing fly ash as a cementations agent in pervious concrete samples. The properties of various pervious concrete samples including density, porosity, compressive strength, water permeability and drying shrinkage have been measured. There are two types of porous pavement: porous asphalt and pervious concrete. porous asphalt pavements consisits of an open graded coarse aggregate, bonded together by asphalt cement ,with sufficient inter connected to make it highly to water. Pervious concrete consists of specially formulated mixtures of Portland and cement, uniform, open graded coarse aggregate and water. Pervious concrete has enough void space to allow rapid percolation of liquids thorough the pavement .pervious concrete is traditionally used in parking areas, areas with high traffic, walk ways in the parks and gardens, residential streets, pedestrians walkway and green houses, basket ball courts and volley ball courts etc. Pervious concrete is an important application for the sustainable construction and is one of many low impact development techniques used builders to protect water quality.

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