Comparison of Strength between Control Concrete and Rice Husk Ash Cement Concrete on Addition of Polypropylene Fiber

The present day world is witnessing construction in very challenging and difficult circumstances, where a great emphasis is on sustainability. Rice husk ash and polypropylene fiber, by-products of rice mill and textile industry simultaneously, can enhance behavior of concrete significantly .In this experimental work the objective was to study the effect of rice husk and polypropylene on compressive and split tensile strength of M20 concrete. Rice husk ash and polypropylene have been mixed with concrete in combination in different proportions. Rice husk has been used in 2.5%, 5% &10% by weight of cement. Polypropylene fiber content varies from 0%, 0.25%, 0.5% &0.75% by weight of concrete. We can see the maximum strength value by plotting the test result of cube for compressive strength test and cylinder for split tensile strength test for 7days and 28 days. At 10% rice husk and 0.5% polypropylene 7 days peak compressive strength has been achieved which is 22.6% higher than controlled concrete. At 5% rice husk and 0.5% polypropylene fiber 7 days peak split tensile strength has been achieved which is 53.57% higher than controlled concrete. At 10% rice husk ash and 0.5% polypropylene fiber 28 days peak compressive strength has been achieved which is 54.61% higher than controlled concrete. At 5% rice husk and 0.5% polypropylene fiber 28 days peak split tensile strength has been achieved which is 31.34% higher than controlled concrete.