Use of Rice Straw Ash as Cement Replacement Material in Concrete

Civil Engineering

The impact of employing Rice straw ash as a partial substitute material for cement in concrete mining is presented in this research. Rice straw ash is the residue left over after open burning Rice straw. The appropriateness of Rice straw ash obtained from uncontrolled burning of Rice straw as a partial replacement for cement in concrete is investigated in this study. The compressive strength and workability of concrete blended Rice straw ash cement are examined and investigated by substituting cement by 15%, 20%, 25%, and 30% by weight to OPC. Slump tests were performed on new concrete, and compressive strength tests were performed on hardened concrete. Several cubes were evaluated after 7 and 28 days. The results demonstrate that Rice straw ash is a decent replacement material. The slump value dropped as Rice straw ash increased. The compressive strength decreased as RSA increased.

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