METHOD OF MAKING BELITIC CEMENT WITH HIGH REACTIVITY AND LOW RELATIONSHIP OF CALCIUM / SILICATE

摘要

The invention relates to a method for producing a binder, comprising the steps of: a) obtaining from a raw material a starting material that has a Ca / Si molar ratio of from 1.5 to 2.5, in the calculation of which those components that behave inertly during hydrothermal treatment in autoclaves, b) mixing of raw materials, c) hydrothermal treatment of the mixture of starting materials obtained in step b) in autoclaves at temperatures from 100 to 300 ° C and residence time from 0.1 to 24 hours, and the ratio of water / solid is from 0.1 to 100, d) intermediate annealing the product obtained in step c) at 350-495 ° C, and the heating rate is 10-6000 ° C / min and the residence time is 0.01-600 min, and during mixing in step b) and / or in the following stages add 0.1-30 wt.% additional elements and / or oxides. In addition, the present invention relates to a binder obtained in this way, as well as its use.