Comparative Study of Blended Concrete and Plastic Waste Concrete with Normal M20 Grade Concrete

The cement industry is the major contributor of CO2 emission, which could be curtailed by the use of supplementary cementitious materials. Fly ash, one of the supplementary cementitious materials, exhibits high pozzolanic characteristics when properly produced under controlled conditions. In this paper, three concrete mixtures were considered to identify the effect of fly ash (produced under controlled conditions) on performance characteristics of the concrete. Fly ash was added as partial replacement of ordinary portland cement for 20%. The properties investigated include compressive strength of blended concrete. Based on the results, it was found that fly ash addition up to 20% in partial replacement of ordinary portland cement lead to increased compressive strength of concrete compared with that of reference mixtures. This paper reports an experimental study on recycled plastic concrete (RPC) that uses recycled acrylonitrile-butadiene-styrene/polycarbonate copolymer (ABS/PC) plastic particles to replace 5%, 10%, 15% (in volume) of fine aggregate sand. The results showed that the compressive strength of RPC was higher than that of normal concrete by 12.47% and increased with the plastic content. The impact resistance performance of RPC materials was superior to that of normal concrete.