A Review on the Recent Development of Ambient Cured Geopolymer Composites

Abstract

Geopolymer composite is synthesized with aggregates and industrial by-products materials those are thriving in alumina and silica, energized using a powerful alkali solution. Geopolymer composites required high temperature curing for achieving higher strength which restricted the use in cast-in-situ work. This literature provides a condensed explanation on the recent development of the ambient cured Geopolymer composites. It has been observed that geopolymer composites contributed better physical properties viz. workability and mechanical parameters viz. compressive, split tensile and flexural strength along with the superior durability properties like sulfate and acid resistance, resistance to freezing and thawing, shrinkage, corrosion and water absorptions etc. compared to the cement composites in the ambient cured condition and also reduces the greenhouse gas production. In general, production of high strength geopolymer composites in the ambient cured condition requires concentration of sodium hydroxide 10–12 Molarity, alkali to binder ratio 0.35–0.5 and the ratio between sodium silicate and sodium hydroxides 1.5–2.5.