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Abstract
This paper present the Experimental investigation carried out to evaluate the effects of concrete by replacing the normal coarse aggregate by steel slag on properties of concrete. Concrete is used more than any other material in the world so the use of concrete is unavoidable at the same time scarcity of aggregate is also increased nowadays. The industrial waste has been encouraged in construction industries because it contributes to reduce the usage of natural resources for many years by product such as fly ash, silica fume and steel slag were considered as waste materials. They have been successfully used in the construction industry for the partial and full substitution in concrete. In this study concrete of M30 grades were considered for a W/C ratio of 0.45 respectively for the replacement of coarse aggregate 50% 60%,and 70% by steel slag. This study revealed that there is aim provident in compressive strength 5 to 10% for all the grades of concrete. There is 4 to 8% increase in split tensile strength in all grades of concrete. The Flexural strength of concrete is increase about 2 to 6% for all the grades steel slag can be use up to 60%replacement in all grades of concrete. Full replacement by steel slag decreases the strength considerably.