Fly Ash Based Geopolymer Mortar- Strength Performance

Abstract

On one hand, going through the roof exigency of cementitious material and on the other hand, catastrophic impacts on environments through a titanic quantity of a primary Green House Gas emissions of CO2 from Ordinary Portland Cement production has altogether twisted the arm of construction and infrastructure industries to come forward with novel, durable, sustainable, eco-friendly and of course, economically affordable alternatives for present binding and construction materials. Geopolymer binders produced through the process of Geopolymerization – a synthesis of Silica and Alumina rich pozzolanic precursor material, such as Fly Ash, with alkali solution as activator, have emerged out as brilliant promising alternative to conventional cement. The goal of this study is performance evaluations of Fly Ash based Geopolymer mortar whereby the cement is replaced entirely, i.e., 100% , with Fly Ash. This study examined the influence of a variety of mix composition parameters and process parameter on the compressive strength of Geopolymer mortar. The mix composition parameters taken into account are Sodium Hydroxide concentration and aggregate to binder ratio, whereas process parameter includes curing temperature.