Abstract

Abstract: Concrete is a combination of fine and coarse aggregates & cement with water. It is a material that is widely used for construction building and other civil engineering structures. The basic objective of this study was to identify alternative source of good quality coarse aggregate. Ferrochrome slag is by product from the production of ferrochrome, an essential component in stainless steel industry. An amount of 1.1 to 1.6 ton of slag is produced for each ton of ferrochrome. Ferro chrome slag is produced in process of calcinations at 1700 degree centigrade in liquid state, at certain temperature conditions and then hardened in solid form which is a waste material. The wastematerial can be used as partial replacement of coarse aggregates in concrete. In thispresent project work M20 grade of concrete is used and compressive strength test are carried out for 0%, 25%, 50%, 75%, 100%replacement of Ferro chrome slag as apartial replacement of coarse aggregate in concrete. For strength parameters the compressive test is carried out on cubes specimens at the age of 7 ,14& 28 days of standard curing and fresh concrete slump is carried to knowthe workability of concrete. From the results maximum compressive strength is obtained as 31.03 N/mm2 for 7 days of curing at the replacement of 25% of ferrochrome slag and 36.05 N/mm2 for 14 daysof curing for replacement of 50% ferrochrome slag. At 25% replacement for 7 days of curing compressive strength is increased by 19.08% and at 50% of replacement for 14 days of curing compressive strength is increased by 30.06% , at 25 % replacement for 28 days curing compressive strength is increased by 32% and 50% of replacement for 28 days of curing compressive strength is increased by 36% as compared to conventional concrete .