Studies on Geopolymer-Based Earthen Compacts

Abstract

The paper presents the investigations on use of geopolymer as a binder in the manufacturing of stabilised earth and clay compacts. Alkali with different molar concentrations was used to stabilise earthen compacts using natural soil and pure clay minerals along with ground granulated blast-furnace slag (GGBS) and fly ash. The results show that compacts using natural soil and pure clays result in lower compressive strength. The strength drastically increases with the addition of GGBS and fly ash. The optimum mix ratios generated can be exploited for the manufacture of geopolymer bricks.