普通硅酸盐水泥净浆初凝期水化反应的阻抗谱研究  

Impedance Spectra of the Initial Setting of the Hydration Reaction of Ordinary Portland Cement Paste

作　　者：张武智[1] 赵怀芳 张尚[1] 张惠珍[1] 周兰兰[1] 鹿桂花[1] 李玉强[1] 黄以能[1,2] 

机构地区：[1]伊犁师范学院物理科学与技术学院新疆凝聚态相变与微结构实验室,新疆伊宁835000 [2]南京大学物理学院国家固体微结构重点实验室,江苏南京210093

出　　处：《伊犁师范学院学报（自然科学版）》2012年第2期34-36,共3页Journal of Yili Normal University：Natural Science Edition

基　　金：新疆自治区科技支疆项目(201091112);新疆自治区科技厅自然科学基金(2010211B16);新疆凝聚态相变与微结构实验室开放课题(XJDX0912-2010-009);伊犁师范学院校级课题(2009QN25)

摘　　要：用交流阻抗谱法测定了不同水灰比普通硅酸盐水泥净浆水化反应的阻抗谱,实验结果表明:(1)不同水灰比样品复阻抗实部曲线具有相同的变化趋势,即随着水化反应的进行,复阻抗实部曲线均呈现出减小增大减小增大的变化规律;(2)特征点的出现时间随水灰比的增大依次延后,特征点的时间间隔均随水灰比的增大而变大;(3)在硬化期,低水灰比水泥净浆阻抗谱实部曲线有较大的增长斜率;(4)阻抗谱实部和阻抗谱虚部曲线的变化趋势相反,并且在同一次实验测量中,阻抗谱实部和虚部曲线特征点并不对应同一测量时间.The impedance spectra of different water-cement ratio of ordinary portland cement hydration reaction was obtained in this paper, and the experimental results showed that： （1）The real part of complex impedance of the sample with different water-cement ratio has the same trend of increase, which shows decrease - increase - decrease - increase; （2）The feature points delays successively with the increase of water-cement ratio, and the time interval of the feature points enlarges with the increase of water-cement ratio; （3）The real part of complex impedance of the sample with low water-cement ratio has a much larger increase slope in the hardening period; （4）The variational trend of the real part of impedance spectra is quite opposite from the imaginary part, and the feature point of the real and imaginary part of impedance spectra does not appear at the same time during once measurement.

关 键 词：阻抗谱 水泥 水化 

分 类 号：TQ172.71[化学工程—水泥工业]