EXPERIMENTAL STUDY ON MECHANICAL PROPERTIES OF POLYPROPYLENE FIBER REINFORCED PERVIOUS CONCRETE

Pervious concrete is a concrete composite material consisting of coarse aggregate, cement and water. Because of the absence of fine aggregate in the mixture, the aggregates are bonded together at its points of contact by cement paste, resulting in a high percentage of interconnected voids that, when functioning correctly, permit the rapid percolation of water through the concrete. In this work, polypropylene monofilament and fibrillated fibres are selected as raw materials in three varying percentage. 0.2% of fiber is added by the total volume of concrete and a new method for determining the permeability of pervious concrete that provides better design methodology is used. The experimental test values of permeability are discussed and validated using Avizo software. The mix design is done for the water to binder ratio of 0.30. Coarse aggregate of 10 mm and 4.75 mm are selected in order to reduce the void content as per the ACI 522R-06 codal provision. The addition of polypropylene fibers shows enhancement in mechanical properties of the pervious concrete as expected