EVALUATION OF STRENGTH AND INFILTRATION CHARACTERISTICS OF POROUS CONCRETE MADE USING RECYCLED CONCRETE AGGREGATE

Abstract: Porous concrete for low-impact development has long been studied the improvement of urban stormwater management. However, porous made using Recycled Concrete Aggregate (RCA) is still lacking, particularly concerning its strength and infiltration rates. Therefore, this paper aimed to design RCA with optimum rate without compromising strength. To fulfill aim, a laboratory study evaluating characteristics mix presented. From mixed 1: 0.4: 3.6 (Portland Pozzolana Cement (PPC): natural sand: coarse aggregate), Natural Coarse (NCA) partially replaced by in interval 0%, 15%, 30%, 45% find The 10 mm aggregate used as it was recorded highest compressive after curing 28 days. With increase addition RCA, decreases whereas increases. comparative strength, 30% replacement NCA ratio 1:0.4:1.08:2.52 (cement: fine aggregate: RCA: NCA) found give most satisfactory result 9737 mm/hr 8.67 MPa respectively. water quality test conducted evaluate whether detention system can reduce pollutants from surface run-off. pH acidity parameters are considered check stormwater. Stormwater infiltrating through prototype becomes basic nature.