Studies on the grinding process of steel and iron slag cement with high steel slag content;

Early hydration characteristics and paste structure of complex binding material containing high-volume steel slag were studied by the determination of hydration heat evolution, type of hydration products as well as micromorphology of hardened paste using calorimetry, X-ray diffraction, pressure porosimeter, and envirnoment scanning electron microscope.

It has far-reaching meaning on a strategy of sustainable development for the cement industry to activate the potential hydraulicity and to produce high-slag cement (HSC).

Test results show that the freeze thaw durability and strength of GGBS concrete are greatly affected by the strength grade,curing regime and GGBS replacement level.