Now a day’s construction industry is focusing on various wastes from other industries to use them as substitutes for construction materials which will reduce their initial cost and impact on the environment. Use of industrial waste materials in concrete is a substitute for the shortage of natural resources. Waste disposal from steel manufacturing industries and power plants are increasing day by day and creating a lot of environmental pollution due to lack of utilizing them. There is a lot of wastes from industries like fly ash, GGBS, and slag-based compounds which can be used as replacement materials for aggregates. The present experimental investigation examines the possibility of replacing coarse aggregate with ferrochrome slag waste obtained from steel manufacturing industries and cement with fly ash obtained from power plants in concrete mix design for many construction practices. The experiments were conducted on the concrete mix in which natural coarse aggregate is replaced with ferrochrome slag to achieve optimal replacement of ferrochrome slag and the effect of fly ash along with the optimal ferrochrome slag on the mechanical properties of concrete.

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In civil engineering construction concrete plays a major role. The ingredients in concrete are cement, fine aggregates, coarse aggregates and water. Due to the scarcity of river sand which is used as fine aggregate in concrete, is being replaced by the products of metamorphic rocks such as quartz sand. It occurs in most igneous and practically all metamorphic and sedimentary rocks. It is highly resistant to both mechanical and chemical weathering. The primary aim of this project is to compare the strength properties of M25 grade concrete by partial replacement of fine aggregate with quartz sand. In order to find the strength of concrete, destructive tests (compressive strength and split tensile strength) and non-destructive test (rebound hammer test) are conducted.

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