Rice Husk Ash in Concrete

This study conducted an extensive literature review on rice husk ash (RHA), with a focus its particle properties and their effects the fresh, mechanical, durability of concrete when used as partial cement replacement. The pozzolanic property RHA is determined by amorphous silica content, specific surface area, fineness, which can be improved using controlled combustion grinding for use in concrete. microstructures are typically irregular shape, porous structures surface, non-uniform dispersion, discrete throughout. Because has finer size than cement, blended performs well terms fresh (workability, consistency, setting time). Due to involvement reactions, mechanical (compressive, tensile, flexural strength) RHA-containing increase increasing content up certain optimum level. Furthermore, (water absorption, chloride resistance, corrosion sulphate resistance). potential replace 10% 20% without compromising performance due high properties. replacement thus provide additional environmental benefits, such resource conservation agricultural waste management, while also contributing circular economy construction industry.