Electrochemical behavior, microstructural analysis, and morphological observations in reinforced mortar subjected to chloride ingress
Electrochemical behavior, microstructural analysis, and morphological observations in reinforced mortar subjected to chloride ingress
复制标题
DOI：
10.1149/1.2431318
复制
发表时间：
2007-01-01
影响因子：
3.9
通讯作者：
Fraaij, A. L. A.
中科院分区：
文献类型：
--
作者：
Koleva, D. A.;van Breugel, K.;Fraaij, A. L. A.
钢筋的行为进行了研究，使用电化学阻抗谱（EIS）和极化电阻（PR）技术在氯化物引起的腐蚀条件下，在普通波特兰水泥砂浆试样浸泡在7%的氯化钠为120天的测试期间，并比较试样浸泡在软化水为同一时期的参考标本。本研究是正在进行的钢筋混凝土结构腐蚀保护电化学方法研究的初始阶段，旨在研究广泛接受的技术（例如EIS和PR）的适用性及其与大块基质结构观察的可能相关性，与水泥相关材料科学和产品层分布，以腐蚀和进一步保护。结果表明，EIS建模的概念和在后者中使用的组件对应的散装基质的结构特性的改变，而电化学行为可以另外支持钢/水泥浆界面的形态观察。(c)2007年电化学学会。
The behavior of steel reinforcement was studied using electrochemical impedance spectroscopy (EIS) and polarization resistance (PR) techniques in conditions of chloride-induced corrosion in ordinary Portland cement-mortar specimens immersed in 7% NaCl for a test period of 120 days and compared to specimens immersed in demineralized water for the same period as reference specimens. This study was an initial phase of ongoing research on electrochemical methods for corrosion protection in reinforced concrete structures and aimed at investigating the applicability of widely accepted techniques as EIS and PR and their possible correlation with structural observations of the bulk matrix, relevant to cement-based materials science and product-layers distribution, to corrosion and further protection. The results indicate that the concept of EIS modeling and the components used in the latter correspond well to alterations in structural properties of the bulk matrix, while the electrochemical behavior can be additionally supported by morphological observations of the steel/cement paste interface. (c) 2007 The Electrochemical Society.