Description
Blast-furnace slag, a by-product of iron and steel industry, is mixed with cement for use as a cement alternative additives. It is an eco-friendly product, which enables reduced energy use and CO2 emissions in its production process by around 40% as compared to producing concrete from cement only, in addition to saving natural resources such as cement raw materials and limestone. Iron and steel manufacturers produce high-quality iron and steel with blast furnaces and a certain volume of blast-furnace slag as by product is generated in the process. BFS is used to make durable concrete structures in combination with ordinary Portland cement and/or other pozzolanic materials.
Over 15 years ago, Peakward started to export blast-furnace slag in international construction market. We have now expanded our operation to more than ten countries. Our slag is used mainly for producing Slag cement and ready-mix concrete. We can supply GGBFS & GBFS from various countries including Japan, China, Vietnam, Korea, India etc. The BF Slag supplied by us have almost 90%-96% Glass content and soft to grind. GBFS is supplied in bulk while GGBFS is supplied both in big bags and in bulk .
Our recent Shipment from China:
Test report of China Origin GBF Slag:
Test report of Indonesia Origin GBF Slag:
Test report of Vietnam Origin GBF Slag:
Standard Specification:
Granulated Blast Furnace Slag
Calcium Oxide | CaO | % | 38 – 45 |
Silicon Dioxide | SiO2 | % | 30 – 36 |
Aluminium Oxide | Al2O3 | % | 12 – 18 |
Magnesium Oxide | MgO | % | 4 – 9 |
Manganese Oxide | MnO | % | 1.5 max |
Ferrous Oxide | FeO | % | 1.5 max |
Titanium Oxide | TiO2 | % | 2.0 max |
Sulfur | S | % | 1.3 max |
Basicity | ï¼CaO+MgO+Al2O3)/SiO‚ | % | 1.75 min |
Glass Content | % | 95 min | |
Moisture | % | 10 max | |
Size -5mm | % | 95 min |
Typical Test Report
Granulated Blast Furnace Slag
Chemical Analysis
Calcium Oxide | CaO | % | 39.5 |
Silicon Dioxide | SiO2 | % | 34.7 |
Aluminium Oxide | Al2O3 | % | 12.35 |
Magnesium Oxide | MgO | % | 9.04 |
Manganese Oxide | MnO | % | 0.29 |
Loss On Ignition | LOI | % | 0.26 |
Titanium Oxide | TiO2 | % | 0.7 |
Chloride | Cl | % | 0.006 |
Sulfur | S | % | 0.63 |
Alkalies | Na2O | % | |
Basicity | (CaO+MgO+Al2O3)/SiO₂ | % | 1.75 |
Glass Content | % | 90 | |
Moisture | % | 7 | |
Size -10mm | % | 99.3 |