UTILIZATION OF RICE HUSK ASH ON PERVIOUS CONCRETE AS A PARTIAL REPLACEMENT OF CEMENT

Rice Husk Ash (RHA) is an agricultural waste product which is produced in large quantities globally every year and difficulty involved in its disposal, RHA becoming an environmental hazard in rice producing countries. India alone produces around 120 million tons of rice paddy per year, giving around 6 million tons of rice husk ash per year. RHA can be used in concrete to improve its strength and other durability factors. So we can use RHA as a partial replacement of cement in pervious concrete. In this research (OPC) cement has been replaced by RHA accordingly in the range of 10%,20%and30%byweightofcementforconstant 0.40 water cement ratio. The compressive strength test and water absorption test was carried out for 7, 28 days. So the main aim of the investigation to study the behaviour of PERVIOUS CONCRETE while replaces the RHA with different proportions in concrete. The test results were obtained from the research which are compared with the control mix (CM).