Utilisation of Steel Slag in Roads of Marathwada Region

MIDC Jana is declared as steel zone in Marathwada region of Maharashtra. There are about 38 steel rolling mills and 10 Billet/Ingot mills, producing 60,000 tonnes Billets/Ingots every day, wasting 20 percent (i.e.12000 tones) of steel slag. This slag is crushed; steel is again extracted from the slag, which is held in pores in the slag. About 18 Percent steel slag of it has been wasted (1 percent finer slag and 1 percent steel). After studying the properties of steel slag by geotechnical engineering point of view, the engineering properties of slag are too similar as compared to the natural aggregates. Properties like gradation, impact value, crushing value, abrasion value of aggregate are within limits of the MoRTH. Also the CBR value is found more than that of the natural aggregate. By utilizing this slag in roads, the waste material will be used and slag won't cause any harmful impact on the environment.