| 摘要 |
The invention relates to a process for producing a binding agent, comprising the steps: a) providing a starting material made of raw materials, which has a molar Ca/Si ratio of 1.5 to 2.5, during the determination of which constituents which behave inertly during the hydrothermal treatment in autoclaves are disregarded, b) mixing the raw materials, c) hydrothermally treating the starting material mixture produced in step b) in the autoclave at a temperature of 100 to 300° C followed by residence time of 0.1 to 24 hours, wherein the water/solids ratio 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 residence time is 0.01-600 min, wherein, during the mixing b) and/or in the following steps, 0.1 to 30% by weight of additional elements and/or oxides are added. The invention further relates to a binding agent obtained in this way and to the use thereof. |
