An Experimental Investigation on GGBSand Flyash Based Geopolymer Concrete with Replacement of Sand by Quarry Dust

Extensive research is currently going on to evaluate geo-polymer in civil engineering application. The project\ud aims at making ecofriendly concrete and increasing the strength of the concrete. Cement, the second most\ud consumed product in the world, 5% – 8% of world’s man made greenhouse gas emission are from the cement\ud industry itself. It is well known that cement production depletes significant amount of natural resources and\ud release of large volume of carbon dioxide. On the other hand, coal burning power plants produce huge quantities\ud of fly ash. Most of the fly ash is considered as waste, dumped in landfills and GGBS exhibits cementitious as\ud well as pozzolanic characteristics so it is quite right in choosing of fly ash and GGBS for concrete mix. Due to\ud over exploitation of river sand for the construction, resulting in river bed erosion. So government frames more\ud restrictions in exploiting them. In order to overcome this issue we use to replace river sand by quarry dust.\ud Alkaline liquids are used as the binding materials, alkaline liquids used in this study for the polymerization are\ud the solution of Sodium Hydroxide and Sodium Silicate, molarity of Sodium Hydroxide 10 M is taken to prepare\ud different mixes. And the strength is calculated for each of the mix. Curing is done by placing specimens at room\ud temperature. The specimen are tested at the age of 7, 14 and 28 days, the test includes compressive strength,\ud split tensile strength and flexure strength. The test results shows that GGBS and Fly ash-based geopolymer\ud concrete has excellent compressive strength and is suitable for structural applications