What are the main raw materials of cement?

The raw materials for firing cement clinker are: calcareous raw materials (such as limestone), siliceous raw materials (such as sandstone and silica), aluminum raw materials (such as fly ash and bauxite) and iron raw materials (such as iron ore, sulfuric acid slag and copper slag).

Raw materials for manufacturing cement include clinker, gypsum and mixed materials (such as slag, fly ash, slag, desulfurization gypsum, industrial waste residue, etc.). ).

Extended data cement: powder hydraulic inorganic cementing material. Mud can be hardened in air after being mixed with water, and the hardening effect is better in water, and materials such as sand and stone can be firmly bonded together.

Cement is divided into:

(1) Portland cement, commonly known as Portland cement abroad;

(2) Aluminate cement;

(3) sulphoaluminate cement;

(4) iron aluminate cement;

(5) Fluoroaluminate cement;

(6) Phosphate cement

(7) Cement with active substances such as volcanic ash or potential hydraulic materials as the main component.

References:

Baidu encyclopedia-cement