| 摘要 |
The invention provides a belite-calcium sulphoaluminate-ferrite (BCSAF) cement composition comprising:
a BCSAF clinker which clinker has the following mineralogical composition, based on the total weight of the clinker:
5 to 25%, preferably 10 to 20%, 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;
15 to 35% of a calcium sulphoaluminate phase;
40 to 75% ofbelite (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;
a water-soluble calcium salt;
and an alkanolamine. |
