A study on effect of fly ash and GGBS on the mechanical properties of geopolymer concrete

Abstract

In this day and age concrete is second most consumable product in the world. The production of cement is emitting carbon to the atmosphere and it increases greenhouse gases. Geopolymer Concrete is a special kind of concrete that is manufactured by use of industrial waste like coal-based fly ash and GGBS which are considered alternative to Ordinary Portland cement concrete. This project work focuses mainly on the effect of fly ash and GGBS on the mechanical properties of geopolymer concrete, by utilizing Fly Ash and GGBS as it reduces the terrible effect on environmental. Geopolymer concrete is good alternative to cement concrete which reduce the emission and cost of production. Using different trial bases 5 different percentage of FA and GGBS is mixed with sodium based alkaline activators such sodium silicate and sodium hydroxide. The tests are carried out for compression and split tensile test, on the concrete specimen. Specimens were casted and cured for 7,14 & 28 days. In our project ambient temperature is preferred, so GPC was done at ambient temperature without keeping it in water unlike conventional concrete