The innovation of low cost self compacting concrete using waste ash

Abstract

This research presents a study of the compressive strength, porosity, chloride penetration, resistance to carbonation and corrosion of self-compacting concrete containing fly ash, ground rice husk-bark ash and ground bottom ash. Portland cement (CT) is partially replaced with pozzolans 0-40% by weight of the cementitious materials. Fly ash, ground rice husk-bark ash and ground bottom ash have a high potential to be used as a good cementitious material. The results show that the compressive strength and low porosity of self-compacting concrete improves substantially with partial replacement of Portland cement with fly ash. Self-compacting concrete mix cement containing 20-40% of pozzolans can be used to make cementitious materials. The use of fly ash, ground rice husk-bark ash and ground bottom ash produces concrete mix with good strength and resistance to chloride and corrosion.