This by-product is generated in the steel production during the scrap melting process in the arc electric furnace. It has an important function in terms of process control and steel quality. It is mainly composed of calcium oxides, iron, silicon, magnesium, manganese, aluminium, phosphorus and sulphur.
After the recovery process (cooling, metallic separation, grinding and sieving), it is used as an aggregate for asphalt mixes, sub-bases for roads, sewers, industrial areas fills, raw materials in cement factories and precast concrete products.