Patent ID: 7998267

Claim:
A belite-calcium sulphoaluminate-ferrite (BCSAF) cement composition comprising: a BCSAF clinker which clinker includes the following mineralogical composition, based on the total weight of the clinker: 5 to 30% of a calcium aluminoferrite phase having the general formula C 2 A x F (1−x) , wherein X is from 0.2 to 0.8; 10 to 35% of a calcium sulphoaluminate phase; 40 to 75% of belite (C 2 S); from 0.01 to 10% in total of one or more minor phases selected from calcium sulphates, alkali metal sulphates, perovskite, calcium aluminates, gehlenite, free lime and periclase and/or a vitreous phase; an alkanolamine, and a water-soluble calcium salt.