Ground Granulated Blast Furnace Slag
Slag is a by-product from steel plants obtained from blast furnaces, during the separation of iron from iron ore. The process involves cooling the slag through high-pressure water jets, which enables the formation of granular particles. The granulated slag is further processed by drying and then grinding in a vertical roller mill or rotating ball mill or roller press to a very fine powder called GGBS.
According to the EPD data, what sets GGBS apart from other building materials is that its global warming potential is at 60.21 kg CO2 equivalent, which is among the lowest in the industry.
Applications of GGBS
- Commercial & Site based Captive RMC units for manufacturing of Concrete of Cast in Situ or Precast nature
- Roads, Bridges Tunnels, Retaining walls, and Other infrastructure works.
- Dams, Canals, Concrete Pipes, Precast Tunnel Linings
- Manufacturing of Cement Based Products such as Grouts, Plaster, Mortars AAC Blocks
- High Rise Residential and Commercial Construction with conventional and modern formwork. For all structural and non-structural concrete applications Nuclear Structures Construction Metro Mono Rails and all Railway Based applications
- Green product
- Proportion flexibility
- Incomparable long-term strength
- Longer life
- Less heat of hydration & reduced thermal cracks
- Resistant to chemical attack
- Improve workability
- Reduced heat of hydration
- High compressive and flexural strength
- Reduced permeability
- Resistance to alkali-silica reaction (ASR)
- Better particle packing
- Excellent resistance to sulfate attack
- Resistance to chloride attack
- Lighter in color
- Reduced life cycle cost
- Fire resistance
- Resistance to erosion
PHYSICAL COMPOSITION FOR GGBS BY JSW
| GOI% | -0.35 |
| CaO% | 37.63 |
| SiO2% | 34.81 |
| Al2O3% | 17.92 |
| Fe2O3% | 0.66 |
| MgO% | 7.80 |
| MnO % | 0.21 |
| CL % | 0.004 |
| IR % | 0.19 |
| SO3% | 0.20 |
| Sulphide Sulphur % | 0.51 |
CHEMICAL COMPOSITION FOR GGBS BY JSW
| Fineness (M²/kg) | 386 |
| Specific Gravity | 2.9 |
| Residue by wet basis on 45 (%) | 4.60% |
| 7 days Slag Activity Index | 71.32% |
| 28 days Slag Activity Index | 91.82% |
| Glass Content | 96.85% |
- JSW GGBS is an ISO 14001-2015 (Environmental Management System)
- ISO 9001-2015 (Quality Management System) certified company
- CII Green Products and Services Council Certified Company
