中文摘要：

为了研究不同龄期下水泥固化土的交流阻抗特性各参数（｜Z｜、z′、z″、θ和f）之间的关系，实验测量了两种不同水泥（普通硅酸盐水泥和矿渣硅酸盐水泥）固化土的阻抗参数，得到了Nyquist图（阻抗的实部z’与虚部z，，的关系图）和Bode图（阻抗｜Z｜与频率，的关系图和相角θ与频率f的关系图）。结果表明：不同龄期下水泥土的Nyquist图和Randlas情况下的Nyquist图具有较高的相似度，可以近似地采用理想状态的电化学体系的等效电路来表示；水泥类型对水泥土的阻抗一频率图的形状影响不大，阻抗均随着频率的增大而减小，但是矿渣硅酸盐水泥土的阻抗比普通硅酸盐水泥土的阻抗大得多（约为110Ω）；其相角一频率图形状均呈u型，但矿渣硅酸盐水泥土在高龄期（〉14d）高频率（〉10^4Hz）段相角的上升幅度较普通硅酸盐水泥土要大。

英文摘要：

In order to study the relationship among the impedance parameters （｜Z｜、z′、z″、θ and f） of alternating current impedance characteristics of cemented soil, the impedance parameters of the cemented soil made of two different cement （ ordinary Portland cement and slag Portland cement） were measured. The curves of Nyquist （ z′、z″ curve ） and curves of Bode （ ｜Z｜-f curve and O-f curve ） based on the measured data were plotted. The results show that the graph of Nyquist of ce- mented soil at different ages has a high degree of similarity to that under Randlas environment, and it can be represented by the equivalent circuit of electrochemical system in ideal condition. The type of cemented soil has little effect on the shape of Z-f curve, and the impedance decreases with the in- crease of frequency. However, the impedance of slag Portland cemented soil is much larger than that of ordinary Portland cemented soil （about 110 Ω）. The θ-f curves show a U-shape, but the phase angle of the slag Portland cemented soil in later period （ 〉14 d） and high frequency （ ≥10^4 Hz） increases significantly than that of ordinary Portland cement.