“Effect of Sugarcane Husk Ash and Rice Husk AshontheMechanicalProperties of Sustainable Concrete AAC Block”

Abstract

This paper presents a comprehensive review of research conducted on the utilization of sugarcane husk ash(SCHA)andricehusk ash (RHA) as supplementary cementations materials in the development of sustainable concrete and autoclavedaeratedconcrete(AAC) blocks. Both SCHA and RHA are rich in amorphous silica and possess pozzolanic characteristics that can partiallyreplacecement,leading to lower carbon emissions and improved resource utilization. The review summarizes their chemical composition, physicalproperties, optimal replacement levels, and effects on the mechanical and durability performance of concrete and AACblocks. Resultsfrom previous studies indicate that partial replacement (5–15%) of cement with these ashes can enhance strength anddurabilitywhilereducing density and improving thermal insulation. This paper concludes that the integration of agricultural by-products suchasSCHAand RHA in AAC block production is a viable approach for promoting sustainable construction and reducing environmental impacts.