A rapid cyclic voltammetric method for studying cement factors affecting the corrosion of reinforced concrete

被引：41

作者：

Foulkes, FR

McGrath, P

机构：

[1] Univ Toronto, Dept Chem Engn & Appl Chem, Toronto, ON M5S 3E5, Canada

[2] Univ Toronto, Dept Civil Engn, Toronto, ON M5S 1A4, Canada

来源：

CEMENT AND CONCRETE RESEARCH | 1999年 / 29卷 / 06期

基金：

加拿大自然科学与工程研究理事会;

关键词：

pore solution; corrosion; electrochemical properties; chloride; corrosion inhibitors;

D O I：

10.1016/S0008-8846(99)00056-3

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A rapid cyclic voltammetric method for studying the influence of cement factors on the corrosion of embedded iron and steel in hardened cement paste is described. The technique employs a "cement electrode" consisting of an iron or steel wire embedded in a miniature cylinder of hardened cement paste. The rapid cyclic voltammetric method is fast, reproducible, and provides information on the corrosiveness of the pore solution environment surrounding the embedded metal. The usefulness of the method is demonstrated by showing how it can be used to evaluate the threshold chloride content of hardened ordinary portland cement paste at which corrosion begins and by using it to evaluate the relative efficacy of several admixed corrosion inhibitors. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：873 / 883

页数：11

共 42 条

[1] COMPARATIVE-STUDY OF THE PASSIVITY AND THE BREAKDOWN OF PASSIVITY OF POLYCRYSTALLINE IRON IN DIFFERENT ALKALINE-SOLUTIONS [J].