It is an evident fact that, the rate of depletion of natural resources like sand is moving to higher grounds every year. In order to curb the later effects, an investigation is led by replacing a portion of sand by GBFS in the entire mixture. GBFS (Granulated Blast Furnace Slag) is a waste byproduct obtained from mining and other industries, whose disposal has led to various Environmental Nuisances. In this investigation the trial mixes by replacing sand by GBFS for 0%, 25%, 50%, 75% & 100% are

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... used. The aim of the investigation is to study the strengthening properties of concrete and various attributes involved in it. In our investigation the absolute number of 30 cubes, prisms and cylinders are prepared for deciding the compressive, flexural and split strengths separately. At 7and 28 days relieving period. In view of the test outcome it was seen that the quality properties of solid increments with expanding the level of GBFS sand The optimum replacement proportion is obtained between 50-75%. The compressive strength, flexural strength and split tensile strength is increased about 3.43%, 17.11% and 10.58% respectively when compared to conventional concrete at 28 days curing period. Even at 100% replacement level of GBFS sand also we will get a good structural grade concrete. Hence utilizing GBFS sand in the concrete is economical as well as environmental friendly option for producing a greener concrete.