Cement based on alite, belite and calcium aluminate chloride - with calcium silicate chloride and calcium alumino-ferrite chloride

摘要

Cement based on alite, belite and calcium aluminate chloride is improved by addition of a highly basic calcium silicate chloride, calcium orthosilicate chloride, and calcium aluminoferrite chloride. The material contains (in pts. wt.) alite 1-50, belite 1-45, calcium aluminate chloride 30-1, highly basic calcium silicate chloride 75-5, calcium orthosilicate chloride 55-5, and calcium aluminoferrite chloride 2-22. This cement can be used in large reinforced cement constructions and in hydraucli installations. The cement has high strength, water-impermeability and resistance to attack by external agents. The setting begins after 7-95 mins. and ends after 14-250 min; it can be regulated easily. The cement has a high early strength, due to the presence of calcium aluminate chloride. The firing of the clinker is carried out at a relatively low temp. (1000-1400 degrees C). The grinding properties are improved.