INFLUENCE OF INDUSTRIAL WASTE BINDERS ON STRENGTH AND DURABILITY OF GEOPOLYMER CONCRETE

Abstract

This research investigates the influence of industrial waste binders on the strength and durability properties of M40- grade geopolymer concrete, utilizing fly ash and ground granulated blast furnace slag (GGBS) as primary binders. The study involves an experimental analysis with varying fly ash content levels of 0%, 25%, 50%, and 75%, assessing performance across multiple curing ages of 7, 14, 28, and 56 days. An alkaline activator solution composed of 8M sodium hydroxide (NaOH) and sodium silicate (Na₂SiO₃) is used at a solution-to-binder ratio of 0.38. Workability is examined through slump tests for each binder variation, while compressive strength and durability are evaluated based on acid resistance tests. This comprehensive experimental approach aims to provide insights into the optimal binder composition for enhanced strength and durability, contributing to sustainable concrete technology by utilizing industrial waste products.