Incorporating Palm Oil Fuel Ash with Slag in Geopolymer Technology: a Review

Abstract

Geopolymer technology has showed the ability of producing new kind of binders which can be used in producing binder like cement to produce geopolymer concrete. The term geopolymer is referring to inorganic polymers materials. The geopolymer technology is describing a chemical reaction after dissolution between alumina-silicate materials with alkali solution to produce three dimensional alumina silicate structures. The production of a new binder to produce mortar and concrete without using ordinary Portland cement is the best contribution of such new revolutionary technology. Different kinds of materials were investigated to produce the geopolymer binder, such as fly ash, metakaolin and slag. However, still some new materials need to be investigated such as the palm oil fuel ash, a by-product material from the palm oil industry. This review paper showing the ability of using the palm oil fuel ash and the slag together to produce new kind of binder in the geopolymer technology; moreover, there are other parameters and properties needs to be investigated in this technology.
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