Abstract
Abstract Geopolymer concrete, which utilizes aluminosilicate precursor materials such as metakaolin, volcanic ash, industrial solid waste including fly ash and ground granulated blast furnace slag as a binder, is an eco-friendly alternative to Portland cement concrete. Although geopolymer concrete does not use cement, it still has shortcomings in terms of environmental friendliness because the aggregates (fine and coarse) used to prepare geopolymer concrete are natural resources and their excessive use in concrete manufacturing leads to natural resource depletion. In view of this, several researchers have tried to replace natural aggregates with various waste materials, which not only conserves natural resources but also helps in waste management. In the present study, the potential of steel slag and coal mine rock waste as a substitute for coarse and fine aggregates in geopolymer concrete to make it truly green is experimentally evaluated. The use of steel slag and coal mine rock waste as coarse and fine aggregates in geopolymer concrete was observed to significantly improve its strength and durability properties compared to fly ash based geopolymer concrete.
Published Version
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