主权项 |
1. Method for the production of a binder, comprising the following steps:
a) providing a starting material made from raw materials that has a Ca/Si molar ratio of 1.5 to 2.5, in the determination of which the components that act in an inert manner during the hydrothermal treatment in the autoclave remain unconsidered, b) mixing the raw materials, c) hydrothermal treatment of the starting material mixture produced in step b) in the autoclave at a temperature of 100 to 300° C. and a retention time of 0.1 to 24 h, wherein the water/solids proportion is 0.1 to 100, d) annealing the intermediate product obtained in step c) at 350 to 495° C., wherein the heating rate is 10-6000° C./min and the retention time is 0.01-600 minutes, wherein, during the mixing b) and/or in the following steps, 0.1 to 30% b.w. of additional elements and/or oxides are added. |