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This experimental work studied the mix design, mechanical properties and durability properties for G40 and G60 Quaternary Blended Geopolymer Concrete. Quaternary means fourth in sequence; hence Geopolymer Concrete is composed of four binder materials: fly ash, ground granulated blast furnace slag (GGBS), rice husk ash, and Metakaolin. For the Binary mixed geopolymer mix, the ratio of flyash to ground granulated blast furnace slag was 70:30 for G40 grades and 60:40 for G60 rates. For the Ternary geopolymer mixture, Flyash: Ground granulated blast furnace slag: Metakaolinratio was taken as 50:30:20 and 40:40:20 for G40 and G60 grades, respectively. For quaternary blended geopolymer mix, Fly ash: Ground granulated blast furnace slag: Metakaolin: Ricehuskash ratio was taken as 30:30:20:20 and 20:40:20:20 for G40 and G60 grades, respectively. As an alkaline solution, sodium with silicate and …