测试和分析了不同聚羧酸减水剂掺量下电阻率的发展曲线及其特征，并且建立了最小电阻率出现时间与初凝、终凝时间的关系。研究发现早龄期电阻率与相应龄期抗压强度之间存在线性相关，通过测定电阻率可以有效地预测硬化体的强度。研究结果表明电阻率曲线能很好地反映水泥净浆凝结硬化的变化过程。

The electrical resistivities of the cement pastes with the different polycarboxylate superplasticizer dosages were examined and analyzed. The relationship between the occurring time of minimum resistivity and the initial setting and final setting times was established. The study results show that the relation between the resistivity of cement mortar at early age and the compressive strength of its corresponding age is a linear correlation, that measuring the rsistivity may predict the strength of hardened cement, and that the resistivity curve can reflect the process of hardenability of paste.