The experimental results of treating red sludge by geopolymer technology

Abstract

Red sludge is a waste product generated in the production process of alumina from bauxite ore. In this report, the author outlines some treatment methods recently applied to the re-use of red mud for the construction industry and proposes a treatment process of red mud by using of geopolymer. The initial experimental results indicated the feasibility of treating red mud and fly ash combined with an alkali-activated solution to form geopolymer cement which is used to manufacture concrete and unburned building materials.