根据电阻率曲线和其微分曲线上的特征点将混凝土的水化分为：溶解期、凝结期、硬化前期和硬化的减速期。
The electrical resistivity curve was identified to divide the hydration process into four periods: dissolution, setting, initial hardening, and hardening deceleration.
本发明的优点是能长 期存放不沉淀、不分化、不凝结而保持染料剂有效。
The product can't deposit, differentiate and coagulate for long time, and the method keeps coloring agent effective.
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