Storm Water Management by Porous Concrete

Civil Engineering

Storm water is water that originates during precipitation event and snow/ice melts. Traditionally surface runoff considered as undesired water which needed to be drain off as soon as possible from urban as well as rural areas. Present drainage system involves construction of drains but this system only transfer the flood from one place to another. Porous concrete is relatively a new technique which provides an alternative solution for managing storm water in a more effective manner. Due to rapid flow rate of water through porous concrete rainfall can be captured and percolate into ground and thus discharging ground water. Porous pavement technology creates more efficient land use by eliminating the need for retention ponds, swales and other storm water management devices. Pervious surface treatment retain the water subsurface as it gradually infiltrates into the soil, holding the storm water in multiple air voids also assisting in water quality through degradation of hydrocarbon in carbon dioxide and water. This project examines the use of different material for making porous concrete, their effect on characteristics of porous concrete and suitability for managing storm water. Cost estimation of various samples determines the most economical solution which can be used for porous pavement. This analysis also helps us to better understand the use of porous concrete for rain water harvesting.

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