GGBFS : BS EN 15167-1

Ground-granulated blast-furnace slag (GGBS) is obtained by quenching molten iron slag (a by-product of iron and steel-making) from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder. One of the most sustainable construction materials available, slag decreases greenhouse gas emissions and the use of virgin materials. The replacement of Portland cement with GGBS leads to a significant reduction of carbon dioxide gas emission. GGBS is therefore an environmentally friendly construction material which can be used to replace as much as 80% of Portland cement when used in concrete


  • Production of Portland blast furnace slag cement
  • Admixture of raw concrete
  • Tunnels and roads construction
  • Construction of dams and shore
  • Agriculture
  • Sewage treatment plants
  • As a cementitious replacement
  • Protection of environment
  • And other applications.


Constituent Unit Specifications
CaO % 30-50
SiO2 % 28-40
Al2O3 % 8-24
MgO % 1-18
Colour nearly white in appearance


  • Bulk in vessels
  • In 1-2MT Sling bags
  • 5 MT Jumbo bags