A geopolymer is a cement-free binder produced with the help of industrial waste products and alkaline reagents. This paper presents fresh-state and strength properties of geopolymer pastes by incorporating supplementary cementitious materials (SCMs) and powdered based activators with ambient curing. The performance of geopolymer pastes will be presented based on flow characteristics, initial/final setting time, heat of hydration and compressive strength compared to their Portland cement counterparts. The influence of SCMs types/dosages, activator types/dosages/combinations will be described to characterize optimized combination of SCMs and activators for the production of geopolymer based blended composites.    

Keywords:  supplementary cementitious materials, geopolymer, activators, pastes