An Utilization of Copper Slag in Highway Construction

Because of our roaring foundation improvement many waste materials are created. Customary materials like fly debris, plastic waste, marble chips and so on are utilized in interstate development. Copper slag which is created during the purifying system of copper contains materials like iron, alumina, calcium oxide, silica, and so on For each tone of metal creation around 2.2 tone of slag is produced. Absolute age of copper slag is around 24.6 million tone all through the world. Removal of these enormous amounts of slag creates ecological issues. The use of such waste materials in street development is of critical significance. During past many years endeavors have been made by a few examiners all around the world to investigate the conceivable use of copper slag. This paper discusses the physical, chemical and geotechnical properties of copper slag. Copper slag has also been mixed with black cotton soil in different proportions and the different geotechnical properties have been investigated. Copper slag and black cotton soil used in sub grade layer of the flexible pavement. Improvement of bearing capacity of Black Cotton Soil on addition of copper slag. On the basis of this research study copper slag can be recommended as an effective stabilizing agent for the improvement of soils for highway embankments and sub grade layers in flexible pavement. 5%,10%, 15%, 20%,25%and,30% of copper slag mixed with black cotton soils were characterized by the following tests are Liquid limits, Plastic limits Specific gravity, swell index, CBR test, unconfined compressive test and direct shear test. By utilizing this mix we can avoid the problems of swelling and shrinkage of expansive soil. This can prove to be an economically viable and alternative solution for road construction