Abstract
Production of cement results in emission of an equivalent amount of carbon dioxide which is a greenhouse gas into atmosphere causing global warming. Fly ash and ground granulated blast furnace slag (GGBS) possesses cementitious material properties and hence can be used as alternate material for cement to overcome the environmental problems. During power generation in thermal plants large quantity of fly ash is produced as a waste product, disposal of which is problem and similarly GGBS is produced in steel plants. River sand access is also becoming more costly and limited due to illegal dredging therefore manufactured sand is used as an alternate for river sand. Hence in this study an attempt is made to study the compressive strength and flexural strength of geo-polymer concrete made of M sand subjected to heat curing at 60 °C and 70 °C with different ratios of the activator solutions, molarities of alkaline solution exposed to elevated temperature. Sodium Hydroxide and Sodium Silicate solutions were used as alkali activators in different mix proportions. Geopolymer is commonly known as inorganic aluminohydroxide polymer which is synthesized predominantly from silicon and aluminum particles in fly ash and GGBS.
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