GEOPOLYMER BINDER FROM INDUSTRIAL WASTES: A REVIEW

This paper summarizes the review of literature on geopolymer binders as alternative to ordinary portland cement. The major factors affecting geopolymerizati on are identified as type and nature of raw materials, alkaline activators and curing conditions. Raw materials rich in reactive silica and alumina are commonly used. Alkali concentration is a significant factor in controlling the leaching of alumina and silica from raw material. Silicate activation increases the dissolution of raw materials and give s rise to favourable mechanical properties.