Published Paper Details:

Abstract Concrete is considered to be the most widely used and versatile material of construction all over the world. One of the important ingredients of conventional concrete is natural sand or river sand, which is on the verge of exhausting due to abundant usage. In this content Metakaolin was a pozzolanic material used in wide range in replacement of cement. Metakaolin is dehydroxylated aluminum silicate, due to its pozzolanic activity the strength properties and durability properties of concrete increases and reduction in Porosity and Permeability also. In this present investigation partial replacement of cement with metakaolin at 0%, 5%, 10%, 15% and replacing natural sand with 50% ROBO sand. The mechanical properties of concrete i.e. compressive strength, split tensile strength and flexural strength are studied of concrete made with replacement of MK-RS and results are compared with conventional concrete. In this work totally six mixes are prepared with M20and M25 grade concrete mix and average of three specimens were tested for 7 days, 14 days and 28 days for each mix.