Effects of cathodic prevention on the chloride threshold for steel corrosion in concrete

被引：38

作者：

Bertolini, L. ^{[1
]}

Bolzoni, F. ^{[1
]}

Gastaldi, M. ^{[1
]}

Pastore, T. ^{[2
]}

Pedeferri, P. ^{[1
]}

Redaelli, E. ^{[1
]}

机构：

[1] Politecn Milan, Dipartimento Chim Mat & Ingn Chim G Natta, I-20131 Milan, Italy

[2] Univ Bergamo, Fac Ingn, Dipartimento Progettaz & Tecnol, I-24044 Dalmine, BG, Italy

来源：

ELECTROCHIMICA ACTA | 2009年 / 54卷 / 05期

关键词：

Reinforced concrete; Cathodic prevention; Hydrogen embrittlement; Pitting corrosion; PROTECTION; DIFFUSION;

D O I：

10.1016/j.electacta.2008.09.033

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This paper presents the results of long-term experimental tests aimed at studying the effects of cathodic prevention on the critical chloride threshold for the onset of pitting corrosion on steel bars in concrete. Cathodic prevention is applied when the structure is new and rebars are still passive being in contact with alkaline and chloride-free concrete. The results obtained showed that even very low values of current densities can increase the critical chloride threshold and, therefore, contribute to increase the service life of reinforced concrete structures in chloride-bearing environments. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1452 / 1463

页数：12

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