A novel in-situ corrosion monitoring electrode for reinforced concrete structures

被引：33

作者：

Subbiah, Karthick ^{[1
,2
]}

Velu, Saraswathy ^{[1
,3
]}

Kwon, Seung-Jun ^{[4
]}

Lee, Han-Seung ^{[1
]}

Rethinam, Natarajan ^{[2
]}

Park, Dong-Jin ^{[1
]}

机构：

[1] Hanyang Univ, Dept Architectural Engn, 1271 Sa 3 Dong, Ansan 426791, South Korea

[2] Alagappa Govt Arts Coll, PG & Res Dept Chem, Karaikkudi 630003, Tamil Nadu, India

[3] Cent Electrochem Res Inst, CSIR, Corros & Mat Protect Div, Karaikkudi 630003, Tamil Nadu, India

[4] Hannam Univ, Dept Civil Engn, Daejeon 306791, South Korea

来源：

ELECTROCHIMICA ACTA | 2018年 / 259卷

基金：

新加坡国家研究基金会;

关键词：

Embeddable electrode; surface mounted electrode; concrete pore solution; corrosion monitoring; electrochemical behavior; ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY; PERFORMANCE-CHARACTERISTICS; ALKALINE-SOLUTIONS; EMBEDDABLE SENSOR; STEEL; BEHAVIOR; PH; FABRICATION; CHLORIDE; SYSTEMS;

D O I：

10.1016/j.electacta.2017.10.088

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this study, an embeddable in-situ corrosion monitoring electrode based on Ce-doped NiFe2O4 was fabricated, and their corrosion performance of the steel rebar was evaluated in the simulated concrete environment under passive and active conditions. The passive and active environment consists of simulated concrete pore solution (SCPS) without and with 3% NaCl. The corrosion performance of embedded steel rebar in concrete was monitored by exposing the concrete specimens under alternate dry and wet condition in 3% NaCl solution. The corrosion behavior of the steel rebar was studied by using open circuit potential, AC-impedance, and potentiodynamic polarization studies. The relative corrosion performance of the embeddable steel rebar was assessed with fabricated corrosion monitoring electrode (FCME) and compared with the surface mounted electrode (SME) by using saturated calomel electrode (SCE). The results revealed that the FCME could use as an in-situ electrode for assessing the corrosion monitoring of the reinforced concrete structures. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：1129 / 1144

页数：16

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