FIELD: chemistry.
SUBSTANCE: invention relates to a cement composition based on belite, sulphoaluminate and calcium ferrite (BSCAF), BCSAF-containing clinker, having the following mineral composition relative to the total mass of the clinker: 5-30%, preferably 10-20%, of a phase based on calcium alumoferrite with general formula C2AxF(1-x), where X varies from 0.2 to 0.8; 10-35% of a phase based on calcium sulphoaluminate; 40-75% belite (C2S); 0.01-10% of one or more auxiliary phases, overall, selected from calcium sulphates, alkali metal sulphates, perovskite, calcium aluminates, gehlenite, free lime and periclase and/or a vitreous phase and alkanolamine, where the alkanolamine has said structural formula and is in amount of 0.01-1 wt %. The invention also relates to a method of producing a cement composition, which involves mixing BCSAF clinker with alkanolamine or adding alkanolamine to ground BCSAF clinker. The invention also relates to a suspension, cement mortar or concrete containing BCSAF and said cement composition. The invention is developed in subclaims.
EFFECT: high strength of BCSAF cement at later stages of hardening, including after 90 days.
10 cl, 3 ex, 3 tbl
