| abstract |
The present invention relates to an ultra-fast setting cement composition containing at least amorphous calcium aluminate including by weight, as compared to amorphous calcium aluminate total weight:n (a) from 35 to 55% of calcium oxide CaO (C), (b) from 19 to 55% of alumina Al 2 O 3 (A),n nthe C/A molar ratio being higher than or equal to 1.5,n (c) from 0 to 10% of silica SiO 2 ,n nwith the amorphous calcium aluminate including (d) from 5 to 16% of iron oxide Fe 2 O 3 . Also disclosed is a method to produce the cement composition, as well as to uses thereof. |