The main feature of slag cement comes from blast furnace slag as a special additive, accompanied by linker and gypsum. The slag functionality is as same as the cement. It causes low speed setting with a final product as same as cement.
Slag cement achieves its resistance with delay , therefore gives it a high level of durability. Slag addition could reduce the concrete damaging in high chloride or sulphurous grounds or in contact with salty soil and waters.