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GBFS / GGBFS

What is GBFS/GGBFS ?

Product GBFS/GGBFS
Standards ASTM C989, EN 15167, BS 6699
Packing 1.4 Ton Jumbo Bags, 25/40/50 kg bags as per client requirement
Monthly capacity 7000 tons GGBFS, 20000 tons GBFS
Shipping mode Containerized or Bulk

Granulated Blast Furnace Slag or GBFS is the residue of combustion in the furnace of the steel refining process. It is obtained by quenching molten iron slag from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder.

GGBFS or Ground Granulated Blast Furnace Slag is formed when GBFS is further processed or ground using conventional cement clinker grinding technology.

Uses and Benefits of GBFS/GGBFS

Uses :

  • GGBFS or GBFS is the most used raw material in cement industry to make slag cement.
  • Lightweight fill
  • Raw material for the manufacture of glass
  • GBFS can be used as a substitute for sand in building materials
  • GGBFS can be used as a replacement for Portland cement

Benefits :

  • Reduced chloride permeability
  • Improved resistance to sulphate attack
  • Reduced heat of hydration in mass concrete
  • Better workability
  • Environmental friendly
  • Improved compressive and flexural strength
  • Reduced alkali-silica reaction
  • Less bleeding
  • Long slump retention
  • Better reflectance
  • Greater durability and thermal resistance
  • Brighter color and reduced electricity

Test report of GGBFS

Sr No Parameters Unit Result Obtained Protocol
1 Loss on Ignition % 1.6 EN 196-2:1987
2 Insoluable Residue % 0.85 EN 196-2:1987
3 Magnesia(Mgo) % 6.52 EN 196-2:1987
4 Sulphate Content as Sulphite % 0.15 EN 196-2:1987
5 Chloride(Cl) % 0.0102 EN 196-2:1987
6 Insoluable Residue % 92 EN 196-2:1987
7 Magnese Oxide % 0.039 EN 196-2:1987
8 (Cao+Mgo)/Sio2 % 1.22 EN 196-2:1987
9 Chemical Modulus (Cao/SiO2) % 0.96 EN 196-2:1987
10 Finesss by air permelability % 380 IS 4031-Part 2
11 Iron oxide as Fe2O3 % 1.83 BS 6699-1992
12 Sodium Chloride % 0.655 IS 4032-1985
13 Free Lime as Cao % 0.77 IS 4032-1985
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