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Ground Granulated Blast Furnace Slag (GBFS) is by-product of the cast iron production process in the Blast Furnace with forced cooling by high pressure water, GBFS has the best properties to be mineral admixture of cement and concrete
Application of S95:
- Used as an additive for cement production
- Used as an additive for concrete and mortar
- Used as a cement for reinforcing the ground

Oxide | FeO | SiO2 | Al2O3 | CaO | MgO | Na2O | K2O | TiO2 |
% | 0,32 | 35,88 | 12,99 | 38,13 | 7,99 | 0,23 | 0,78 | 0,76 |
ITERMS | Our PRODUCT GGBFS - S95 | VIETNAM STANDARD 11586:2016 | ||
1. Specific Gravity, g/cm3 | 2,8 | ≥ 2,8 | ||
2. Fineness (Blaine), cm2/g | 4500 | ≥ 4000 | ||
3. Strength activity index, % | ||||
7d | 83 | ≥ 75 | ||
28d | 96 | ≥ 95 | ||
4. Rate of mobility, % | 92 | ≥ 90 | ||
5. The moisture content, % | 0,8 | ≤ 1,0 | ||
6. Magnesium oxide content (MgO), % | 8,0 | ≤ 10,0 | ||
7. Sulfate Ion in Slag Reported as SO3, % | 1,0 | ≤ 4,0 | ||
8. Chloride Content (Cl-), % | 0,001 | ≤ 0,02 | ||
9. Loss on ignition, % | 1,0 | ≤ 3,0 | ||


We are one of the biggest GBFS Groups in Vietnam, which has two manufacturers, the first has got the stable operation with a capacity of 0.75 million tons of Granulated Blast Furnace Slag (GBFS) per year. The second is being construction and erection.






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