Rice Husk Based Geopolymer As Environment Friendly Material - A Review

In the globe, concrete is supremely adaptable, enduring and reliable material. Concrete is the utmost extensively used material later water in the earth. But concrete is not environment-friendly payable to huge carbon impression of cement. To grow a viable imminent, it is stimulated to limit the use of this construction material that can disturb the environment. For reduction, the consumption of cement in concrete, used of Geopolymer is the preeminent approach. Geopolymer consider as green material because they can be manufactured from or natural resources and their chemistry is globally friendly without the emission of toxic residue of CO ₂ . The use of Pozzolanic material identical Fly ash, Rice Husk Ash (RHA), (GGBS) Ground Granulated Blast-Furnace Slag, etc, and polymeric binder with no use of OPC is called Geopolymer. In Geopolymer composite, the utmost research exertion has been concentrated on fly ash-based binders. On the other hand, Rice Husk Ash (RHA) devours the impending to be used as source material in Geopolymer composite. Rice husk ash (RHA) is acquired from the ignition of rice husk at a temperature lesser than 700ºC. RHA is a pozzolanic substantial contain near about 85–90% of silicon dioxide (SiO ₂ ). The specific surface of RHA is between 40-100m ² /g. In the present paper concisely review the drudgery conceded by the numerous researchers on durability, strength, chemical composition, microstructure, etc of Geopolymer composite.