Enhancing the mechanical properties of pervious recycled aggregate concrete using silicafumes

Abstract

The growth of construction industry in India is increasing enormously over the last few years. This demands a huge quantity of construction materials across the globe which indirectly has a serious impact on the environment that includes aggregate scarcity, inadequate ground water recharge due to impermeable paved surfaces, dust and noise pollution. The use of recycled concrete aggregate in construction industry will mitigate the impact to some extent and also the construction of permeable surface helps in ground water recharge. In this study, the effect of recycled concrete aggregate on mechanical properties of pervious concrete is studied. In addition, the strength of pervious concrete composed of recycled concrete aggregate is enhanced by the addition of silicafumes from 8% to 16% in increments of 2%. The effect of silica fume on permeability and flexural strength is also studied.