@Article{, title={Thermally Activated Bentonite As a Supplementary Cementitious Material – A Review}, author={Waleed A. Abbas and Qais J. Frayyeh b, and Amer A. Al-Hammood a*,}, journal={Engineering and Technology Journal مجلة الهندسة والتكنولوجيا}, volume={39}, number={2 part (A) Engineering}, pages={206-213}, year={2021}, abstract={Bentonite is a mixture of clay and non-clay minerals. Montmorillonite claymineral is a dominant mineral in bentonite. Silica and alumina bond in thecrystal structure of montmorillonite. Therefore, they cannot contribute tothe pozzolanic reaction. Heat treatment of bentonite leads to thedestruction of the crystal structure of montmorillonite and convertingsilica and alumina to reactive phases. Thermally activated bentonite (TAB)is a relatively low reactive pozzolan when used as partial replacement ofPortland cement modifies both fresh and hardened properties of cementpaste, mortar, and concrete. The most desired effects of TAB are: improvesegregation resistance, reduce the rate of strength gain, and enhanceconcrete durability against sulfates, chlorides, and acids, in addition toeconomic and ecological beneficiations. This paper provides informationrelated to heat treatment of bentonite clays and montmorillonite minerals,and their effects on the paste, mortar, and concrete when used as a partialreplacement of Portland cement

} }