Predicting degradation of the anode-concrete interface for impressed current cathodic protection in concrete

被引：38

作者：

Zhang, Emma Qingnan ^{[1
]}

Abbas, Zareen ^{[2
]}

Tang, Luping ^{[1
]}

机构：

[1] Chalmers Univ Technol, Dept Architecture & Civil Engn, Gothenburg, Sweden

[2] Univ Gothenburg, Dept Chem & Mol Biol, Gothenburg, Sweden

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2018年 / 185卷

基金：

瑞典研究理事会;

关键词：

Cathodic protection; Degradation; Anode-concrete interface; Calcium leaching; Accelerated method; CALCIUM LEACHING BEHAVIOR; CEMENT PASTES; HYDROXIDE; MODEL;

D O I：

10.1016/j.conbuildmat.2018.07.025

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Impressed current cathodic protection and prevention techniques are efficient methods to stop or prevent corrosion in steel reinforced concrete structures. The inevitable side effect of the current exchange is acidification at the anode-concrete interface. Accelerated test methods can be used to investigate the long-term performance of the system. However, a linear relation will not hold between the accelerated and normal conditions because of the influence of the current density. This paper presents results of an accelerated test. A power-relation conversion model is proposed and an acceleration factor is introduced. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：57 / 68

页数：12

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