IRJET- An Experimental Study on Influence of Metakaolin and Quarry Dust in Concrte Properties by Partial Replacement of Cement and Fine Aggregate

This study investigated the effects of partially replacing cement and fine aggregate with metakaolin and quarry dust in concrete. Concrete mixtures were produced by replacing cement at 0%, 5%, 10%, 15%, and 20% with metakaolin, and replacing fine aggregate at the same percentages with quarry dust. Compressive strength, split tensile strength, and flexural strength were tested at 3, 14, and 28 days. Results showed that strength generally increased up to 15% replacement, with the highest strengths obtained at 15% replacement of cement with metakaolin and fine aggregate with quarry dust. At 15% replacement, compressive strength increased 26.34%, split tensile strength increased 73.84%, and flexural strength