Open AccessA Review on Ambient Cured Geopolymer Concrete-Sustainable Concrete for the Future
Author(s) -
A V Nithin,
Mini Soman,
Shubham Raj
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/936/1/012037
Subject(s) - geopolymer , curing (chemistry) , aluminosilicate , durability , materials science , fly ash , geopolymer cement , cement , compressive strength , composite material , compatibility (geochemistry) , chemistry , biochemistry , catalysis
The cement industry is one of the major contributors to global warming due to the release of greenhouse gases. An alternative low emission binding agent is needed to reduce the environmental impact caused by cement production. Geopolymer binder is an ideal material to substitute cement binder. Geopolymer Concrete (GPC) is formed by the polymerisation of aluminates and silicates formed by the reaction of solid aluminosilicates with alkali activators. The source materials studied were waste by-products from industries. This paper reviews the strength and durability characteristics of Geopolymer Concrete under ambient curing conditions. The comparison and study of the morphology of different aluminosilicate source materials through X-ray diffraction (XRD) pattern and Scanning electron microscopy (SEM) analysis under different curing temperatures and the study on the chemical composition and its effect on alkali activators and aggregates helped to understand the nature and type of source materials and activators most desirable to develop GPC in ambient conditions. GPC formed in ambient curing conditions have considerable strength and durability characteristics and can be adopted as a sustainable replacement for conventional concrete.