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  • Author or Editor: Muhammad Sohaib x
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This research work is related to the study of effects on properties of concrete having rice husk ash as cementitious supplementary materials. Total four mixes of concrete were done with varying percentages of rice husk as 6%, 12% and 18%. The tensile, flexural and compressive strengths that contain rice husk ash were determined by testing cubes, cylinders and beams. There was a replacement of 6%, 12% and 18% of rice husk ash in all mixes except the control mix. The concrete's flexural strength with rice husk ash increases at the beginning and at the later age (i.e., 28 days) similar to control mix; however, variation in compressive and splitting tensile strength is negligible. The optimum results are achieved with 6% replacement of cement with rice husk ash. Therefore, it was inferred that rice husk ash could be used as partial replacement of cement in concrete to produce economic concrete.

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