Portland Slag Cement

Ground granulated blast furnace slag (GGBFS) is added up to 65% with 4% gypsum and 31% clinker and inter-grinded to obtain Portland Slag Cement. This cement conforms to IS 455/1989 but having strength of 23, 33, and 43 mega-pascal for 3 day, 7day and 28 day although the statutory requirement is 16, 22, and 33 mega-pascal respectively. High strength is achieved by the high quality of clinker, good quality of slagand the technique of grinding.

 

Uses of PSC

»» Buildings, walls, roads and bridges

»» Dams, power houses, tunnels, spillways and mass concreting

»» Airports, runaways

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