Studies on Low Calcium Flyash-GGBS based Geopolymer Concrete with Slag Sand

Abstract

Geopolymer is one of the most suitable alternative binder materials to ordinary Portland cement. We get Geopolymer mostly from the aluminosilicate which is a source material in some of the materials like silica fume, flyash , kaolin and Ground Granulate Blast Slag (GGBS). Hence geopolymer is normally recognized as Low-Emission alternative binder for concrete. According to most of the recent articles on geopolymer concrete the curing that took up in the research was heat curing for setting and hardening of flyash geopolymer mixtures. But heat curing of geopolymer concrete requires special arrangements which is energy consuming and requires skilled man power so may not be feasible to apply in most of the cast-in-situ conditions. This paper mainly focused on the curing of geopolymer concrete in normal temperature i.e.; curing tank temperature without any additional heat during the entire curing process. While doing the project we are going to replace fine aggregates with slag sand. The effects of the adding of superplasticizer and replacing of slag sand with fine aggregates were determined from experimental results