Mechanical Behavior of Fine RHA Concrete

摘要: This research was aimed to investigate the effect of high fineness rice husk ash (FineRHA) on mechanical behavior fine RHA concrete as compared ordinary Portland cement (OPC). The properties be investigated included slump, unit weight, compressive strength, modulus elasticity and temperature hydration. replacements were varied from 0%, 20% 40% by weight binder. ratios volume paste minimum voids content total aggregates (g) 1.2, 1.4 1.6. water binder 0.5, 0.6 0.7. results indicated that has a highly pozzolanic reactivity can used supplementary cementitious material in concrete. Slump lower than OPC concrete, but higher RHA044 (RHA with average diameter 44 mm) For same mixture, decreased when increased. It also found strength after 28 days at w/b equal 0.5 especially for replacement 20%. slightly hydration every mixtures.