借助于X-射线衍射分析、激光粒度分析、宏观力学性能测试等手段,对煤矸石进行了系统的机械-热力复合活化研究,研究结果表明:采用机械-热力复合活化,煤矸石中的活性来源矿物高岭石转变为偏高岭石的温度明显低于纯高岭石的转变温度。机械-热力复合活化的煅烧温度、粉磨时间参数对掺煤矸石水泥早期强度的影响不大,但对后期强度有较大影响。在保持细度相同的情况下,对于煤矸石的热力活化存在最佳活化温度;在相同的热力活化制度条件下,对于煤矸石的机械活化存在最佳机械粉磨时间。在相同的热力活化制度、相同的粉磨时间条件下,采用“先混后磨”的粉磨方式优于“先磨后混”。 By means of X-ray diffraction analysis, laser particle size analysis, macroscopic mechanical properties testing and other means, the coal gangue was systematically investigated by mechanical-thermal compound activation. The results show that: by mechanical - thermal complex activation, active sources in coal gangue The temperature at which mineral kaolinite is converted to metakaolin is significantly lower than the transition temperature of pure kaolinite. Mechanical - thermal composite activation calcination temperature, grinding time parameters on the coal gangue cement early strength little effect, but the late strength have a greater impact. Under the condition of the same fineness, there exists the best activation temperature for thermal activation of coal gangue; under the same thermal activation condition, there is the best mechanical grinding time for mechanical activation of coal gangue. In the same heat activation system, the same grinding time conditions, the use of “first mixed after grinding” grinding method is better than “grinding before mixing.”