Applications of cement. Cements may be used alone (, "neat," as grouting materials), but the normal use is in mortar and concrete in which the cement is mixed with inert material known as aggregate. Mortar is cement mixed with sand or crushed stone that must be less than approximately 5 mm (3 / .
GIC Environment > Waste to Raw Materials We employ the following recycled or industrial waste material as a substitute for our raw materials in the cement manufacturing ... Slag contributes 2% by weight in every tonne of our raw material used. ... Crushed rock fine limestone (CRFL).