摘要
水泥混凝土材料体系的电化学研究最近取得了若干重要进展。本文涉及交流阻抗谱应用于水泥混凝土材料科学的若干理论问题，包括交流阻抗谱各个参数与硬化水泥浆体结构相关的理论关系式，及其在若干水泥水化体系中的验证。表明了在复平面上出现的交流阻抗半圆的位置和大小取决于材料固－液界面特性，即与孔隙率、孔径分布和孔溶液中电解质浓度有关。用交流阻抗谱研究水泥浆体结构可望成为一种快速、非破坏世的测试方法。
An important development in the research on electrochemistry of cement and concrete systems hasbeen made recently.This review deals with the theory of AC impedance spectroscopy applying to cement andconcrete science,which includes the relationchip hetween AC impedance behavior and structural parameters ofporous cementitious systerns and the experimental proof in several hardened cement systems.In general,the occurrence of the semispheres on the real-imaginary plane of ACIS depends on the characteristics of solid-liquid in-terface,i.e. porosity,pore slze distribution and the ionic concentration of pore solution.The AC impedance spec-troscopy technique may be expected to be tixed as a rapid and non-destructive method for determining the structure of cement pastes.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
1994年第2期173-180,共8页
Journal of The Chinese Ceramic Society
关键词
水泥
混凝土
电化学
交流阻抗谱
cement,concrete, electrochemistry, AC impedance,testing method:
