Abstract
Geopolymer concrete is prepared by reacting silicate as well as aluminate consisting materials with a caustic activator. More often, waste materials such as GGBS, fly ash, slag from metal and iron production are used. Recent investigations adding new materials like Alccofine, which improves the properties of geopolymer concrete even at ambient temperature condition. This research paper presents a details literature survey on the durability properties of geopolymer concrete. Various research literatures are previewed on durability of geopolymer concrete with the addition of different supplementary cementious materials as their necessity is increasing due to insistent constituents. Past studies from the literature reviews suggested that replacement of cement with chemical and mineral admixtures enhanced the properties of strength and durability of concrete. The micro structures, Morphological structures by SEM, lower shrinkage, higher mechanical strengths, superior durability with environmental sustainability are observed. XRD studies shown enhanced polymerisation reaction which is responsible for development of strength. Elevated temperatures and Surface deterioration are controlled in GPC than OPC. Geopolymer concrete provides better resistance for specimens to chemical attack and also water absorption, sorptivity, porosity have good influence to the durability properties in ambient curing conditions compared to conventional concrete.
Highlights
Concrete is the reliable, durable and versatile material used for construction
For reducing the emission of carbon dioxide, the alternative binding systems with waste materials like flyash, GGBS, BRHA, slag, nano silica, Etc are used to prepare concrete by eliminating cement is called as “Geopolymer concrete”, which is manufactured by stimulating source materials like alumino silicates in a highly alkaline solution[1,2]
Out of all the supplementary cementious materials the flyash, GGBS are widely used for replacement as they enhance the engineerin1g properties and other materials are used for Reuse or Reutilization of resources
Summary
Concrete requires huge quantities of Portland cement and it is highly used material in the world, next to the water. For reducing the emission of carbon dioxide, the alternative binding systems with waste materials like flyash, GGBS, BRHA, slag, nano silica, Etc are used to prepare concrete by eliminating cement is called as “Geopolymer concrete”, which is manufactured by stimulating source materials like alumino silicates in a highly alkaline solution[1,2]. The name geopolymer was firstly coined by a French Professor Davidovits in 1978 representing wide range of thermally activated natural materials such as Meta kaolin or byproducts of Industries such as flyash, slag adding a source of silicon (Si) and Aluminium (Al) which dissolves in alkaline solution and polymerises into molecular chains to produce the binder. GGBS is the industrial waste and the BRHA is agrowaste, by keeping the GGBS as a base material and replacing BRHA at
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