为探讨研磨时间及水化时间对煤矸石基注浆材料流变特性的影响，通过系统实验，采用旋转黏度仪器对不同煤矸石研磨时间（粒径分布）和水灰比及水化时间条件下的煤矸石-普通硅酸盐复合浆液的流变特性进行测试。分析了不同水胶比条件下煤矸石基复合浆液的流变行为。研究发现，水胶比是影响复合凝胶材料絮凝结构的主要因素，而粒径对浆液絮凝结构的影响相对较小。当水胶比为0.6、0.8和1.0时，复合浆液表现出具有屈服应力的Herschel-Bulkley流变模式；水胶比增至1.5时，浆液的流变行为转变为宾汉姆塑性流体模式；而当水胶比达到2.0时，浆液则表现为牛顿流体模式。进一步研究表明，煤矸石粉末的研磨时间对浆液的屈服应力具有显著影响，且随着研磨时间的延长，屈服应力逐渐增大，这一现象在低水胶比条件下表现得尤为明显。此外，在低水胶比条件下，Hershel-Bulkley流变模式中粒径的变化并未引起稠度系数和流变指数的规律性响应，这表明浆液中絮凝结构的演变并非单纯由粒径调控。通过对不同搅拌时刻（5、10、20、40、60 min）浆液的测试，发现随着水化时间的延长，浆液的剪切应力逐渐增大，并可建立剪切应力随水化时间变化的关系式。

In order to explore the effects of grinding time and hydration time on the rheological properties of coal gangue-based grouting materials, through systematic experiments, the rheological properties of coal gangue-ordinary silicate composite slurry under different conditions of coal gangue grinding time (particle size distribution), water-cement ratio and hydration time were tested by rotating viscosity instrument. The rheological behavior of coal gangue-based composite slurry under different water-glue ratios was analyzed. It is found that the water-glue ratio is the main factor affecting the flocculation structure of composite gel materials, while the particle size has a relatively small effect on the flocculation structure of the slurry. When the water-glue ratio is 0.6, 0.8 and 1.0, the composite slurry exhibits the Hershel-Bulkley rheological mode with yield stress, and when the water-glue ratio increases to 1.5, the rheological behavior of the slurry changes to Bingham plastic fluid mode, and when the water-glue ratio reaches 2.0, the slurry exhibits Newtonian fluid mode. Further studies show that the grinding time of gangue powder significantly affects the yield stress of the slurry, and the yield stress increases with the extension of grinding time, especially under the condition of low water-glue ratio. In addition, the change of particle size in the Hershel-Bulkley rheological mode did not cause a regular response of consistency coefficient and rheological index at low water-to-glue ratio, indicating that the evolution of flocculation structure in the slurry was not solely regulated by particle size. Through the test of slurry at different mixing times (5, 10, 20, 40, 60 min), it is found that the shear stress of the slurry increases with the increase of hydration time, and the relationship between shear stress and hydration time can be established.