| Blast Furnace Slag, is produced as a result of the reduction of iron oxide to iron. It consists of silicates, the alumina silicate of lime, a minor percentage of ferric and managanese oxide and sulphur. Chemical Analysis | Calcium Oxide | 36 - 40% | | Silica | 36 - 39% | | Alumina | 14 - 16 % | | Magnesium Oxide | 9% max | | Maganese Oxide | 1.3% max | | Titanium Oxide | 0.881% max | | Iron Oxide | 0.5% max | | Sulphur | 1.5% max | | | | Boulder Slag | | Boulder Slag, is produced by Pakistan Steel by using a semi direct method in which slag formed from the Blast Furnaces is processed at a slag granulation plant via a wet quenching process. Chemical Analysis | Calcium Oxide | 36 - 40% | | Silica | 36 - 39% | | Alumina | 14 - 16 % | | Magnesium Oxide | 9% max | | Maganese Oxide | 1.3% max | | Titanium Oxide | 0.881% max | | Iron Oxide | 0.5% max | | Sulphur | 1.5% max | | | |
