COMPRESSIVE STRENGTH AND FLEXURAL STRENGTH OF ALKALI-ACTIVATED SLAG CONCRETE DESIGNED BY TAGUCHI METHOD

Alkali Activated Slag (AAS) concrete is a combination of blast furnace slag and alkaline solution that is used as a binder. In this paper, Taguchi method was used to design of AAS mixtures. By considering four affecting factors including concentration of sodium hydroxide (NaOH) solution, sodium hydroxide to sodium silicate ratio, alkaline solution to slag ratio, and aggregate content, the optimal mixture design that provides the maximum compressive strength and flexural strength was identified. To verify the results, the optimal mixture was produced and tested. The mixture resulted in more compressive strength and flexural strength than other mixes.