Solid waste materials are one of the most significant environmental problems all over the world. Therefore in-order to avoid environmental pollution it is important to reuse these scrap tires. There for in this study experimental works have been done to evaluate the influence of adding tire rubber powder in concrete in terms of compressive strength and workability. The rubber powder were used to replace 0%, 1%,5%,15% and 25% of the total minerals of cement volume in concrete. Results revealed that the average compressive strength at age 28 days was decreased up to 10.9%, 13.31 %, 25.1%, 32.2%, 48.3% by adding rubber powder 1%, 5%, 15% and 25% respectively. So that adding rubber powder has significant effect of reducing the compressive strength. The slump test for sample without rubber is 90 mm, it was also observed that the slump is reduced by increasing the amount of rubber to the concrete, so that adding rubber 25% of cement gives slump of 73 mm. According to this study it was not recommended to use rubber powder as cementation material in concrete because it observed that adding more rubber results in decreasing the compressive strength of concrete and these phenomena is not preferable.

Keywords : Rubber powder, environmental pollution, compressive strength, concrete.