采用无电极电阻率测量仪自动连续监测了分别掺加0、10%、30%、50%、70%粉煤灰的地聚合物浆体凝结硬化全过程中的电阻率变化,分析了粉煤灰基地聚合物浆体随时间发展的物理化学变化规律,探讨了偏高岭土和粉煤灰与碱激发剂之间的反应机理,并将地聚合化反应过程分成:离子释出、离子重构、凝结硬化及稳定4个特征阶段。最后还提出了地聚合化反应过程模型。 Electrodeless resistivity measuring instrument was used to continuously and continuously monitor the resistivity changes during the whole process of coagulation and hardening of geopolymer slurry mixed with 0,10%, 30%, 50% and 70% fly ash respectively. The physical and chemical changes of the polymer matrix of ash base over time were discussed. The reaction mechanism between metakaolin, fly ash and alkali activator was discussed. And the polymerization process was divided into ion release, ion reconstruction, Coagulation and stabilization of the four characteristics of the stage. Finally, the geopolymer reaction process model is also proposed.