Effect of Fly Ash And HDPE On Concrete Strength

Abstract

Rapid development in construction industry needs innovative elements to ensure concrete emphasize application of green construction. These present study covered the use of recycled plastics as replacement of coarse aggregates in concrete and fly ash as a replacement of cement. The main aim of the study is to investigate the change in mechanical properties of concrete with the addition of plastics and fly ash in concrete. Along with the compressive strength, water absorption of the resultant concrete is also studied. It is found that the use of plastic aggregates and fly ash results in the strength of the concrete. The compressive of concrete reduces with the introduction of plastics. Average compressive strength at 28 days showed for M2 (contained 10% plastic HDPE) is 25.64 N/mm² while M3 (15% plastic HDPE) is 23.37 N/mm² and M4 is 22.45 N/mm² (10% plastic HDPE). Test results show that, inclusion of fly ash generally contributes the improvement of concrete properties.