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采取热活化、机械活化、化学活化、晶种活化等复合激发措施充分激发煤矸石潜在的火山灰反应活性,进而选取物化性能符合要求且价格低廉的辅助材料(主要是石灰和石膏)进行正交实验,配制了以煤矸石作为主要原材料的注浆材料。并研究了浆材的水化机理及其各种基本物理力学性能指标,通过对其工作性及耐久性进行试验,发现其具有较好的胶凝性质及抗渗性能,符合现时通用的注浆材料检验标准,可以用作隧道侵限加固材料。
The activation of pozzolanic reaction of coal gangue is fully stimulated by the combination of heat activation, mechanical activation, chemical activation and seed activation, and then the auxiliary materials (mainly lime and gypsum) which meet the requirements and have low physical and chemical properties are selected for orthogonal experiment , Prepared with coal gangue as the main raw material grouting material. The hydration mechanism of pulp and its basic physical and mechanical properties were also studied. The workability and durability of the pulp were tested and found to have good gelling property and impermeability, which is in line with the current general grouting Material inspection standards, can be used as a tunnel invasion reinforcement material.