MECHANICAL PROPERTIES OF GREEN TERNARY- BLENDED - GEOPOLYMERS BINDER

Many industrial-wastes/clays, such as fly ash (FA), ground granulated blast-furnace slag (GGBS), brick kiln dust (BDK), are employed in developing geopolymeric materials used in the constructionsector. Accordingly, this work aims to find a green approach to benefit from the synergistic impacts of the precursors in developing ternary-blended geopolymers (GGBFS/FA/BKD) having multifunctional engineering applications. Five mixes were prepared: the control specimen and the others contained different portions from GGBS, FA, and BKD. All mixes were cured in high humidity for up to 28-days. The various combinations of fly ash, ggbs and brick kiln dust considered are 80%, 20%, & 0% 70%, 20% & 10% 60%, 20% & 20% 50%, 20% & 30% respectively. The ratio of binder to sand and Na₂SiO₃/NaOH is taken as 1:2 and 2.5 respectively. It was concluded that the compression strength,flexural strength, and density decreases when the quantity of brick kiln dust increases.