Magnesium alloy anode as a smart corrosivity detector and intelligent sacrificial anode protector for reinforced concrete

被引：42

作者：

Yan, Lei ^{[1
]}

Song, Guang-Ling ^{[1
,2
]}

Zheng, Dajiang ^{[1
]}

机构：

[1] Xiamen Univ, Coll Mat, Ctr Marine Mat Corros & Protect, 422 S Siming Rd, Xiamen 361005, Fujian, Peoples R China

[2] Xiamen Univ, Coll Chem & Chem Engn, Dept Chem, State Key Lab Phys Chem Solid Surfaces, 422 S Siming Rd, Xiamen 361005, Fujian, Peoples R China

来源：

CORROSION SCIENCE | 2019年 / 155卷

基金：

美国国家科学基金会;

关键词：

Magnesium alloy; Sacrificial anode; Cathodic protection; Reinforced concrete; CHLORIDE-INDUCED CORROSION; CATHODIC PROTECTION; DISSOLUTION; BEHAVIOR; STEEL; AL; PERFORMANCE; COATINGS; ZN; PH;

D O I：

10.1016/j.corsci.2019.04.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Corrosivity of simulated concrete pore solution (SCPS) contaminated by chloride was automatically detected and corrosion of steel in SCPS was intelligently prevented by magnesium (Mg) alloy. Results indicated that Mg could act as effective sacrificial anode to cathodically protect steel from corrosion attack once the SCPS was polluted by chlorides. Al alloying could enhance the sensitivity of Mg anode to chloride contamination and further improve its cathodic protection effect, and thus enhanced its intelligence level as corrosivity detector and corrosion protector. The automatic corrosivity detection and intelligent cathodic protection of Mg and AZ91 for steel were also validated in concrete.

引用

页码：13 / 28

页数：16

共 37 条

[1] Studies on the influence of chloride ion and pH on the corrosion and electrochemical behaviour of AZ91D magnesium alloy [J].

Ambat, R ;

Aung, NN ;

Zhou, W .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 2000, 30 (07) :865-874

[2] Corrosion rate monitoring in the laboratory and on-site [J].

Andrade, C ;

Alonso, C .

CONSTRUCTION AND BUILDING MATERIALS, 1996, 10 (05) :315-328

[3]

[Anonymous], [No title captured]

[4] Correlation between electrochemical impedance measurements and corrosion rate of magnesium investigated by real-time hydrogen measurement and optical imaging [J].

Curioni, M. ;

Scenini, F. ;

Monetta, T. ;

Bellucci, F. .

ELECTROCHIMICA ACTA, 2015, 166 :372-384

[5] Performance of sacrificial anodes to protect the splash zone of concrete piles [J].

de Rincón, OT ;

de Romero, MF ;

de Carruyo, AR ;

Sánchez, M ;

Bravo, J .

MATERIALS AND STRUCTURES, 1997, 30 (203) :556-560

[6]

Funahashi M., 1998, 98058 FHWA RD

[7] Concentration monitoring and performance of a migratory corrosion inhibitor in steel-reinforced concrete [J].

Holloway, L ;

Nairn, K ;

Forsyth, M .

CEMENT AND CONCRETE RESEARCH, 2004, 34 (08) :1435-1440

[8]

Jin-A Jeong, 2015, Advanced Materials Research, V1125, P345, DOI 10.4028/www.scientific.net/AMR.1125.345

[9] Cathodic protection revisited: Impact on structural morphology sheds new light on its efficiency [J].

Koleva, D. A. ;

Hu, J. ;

Fraaij, A. L. A. ;

Stroeven, P. ;

Boshkov, N. ;

van Breugel, K. .

CEMENT & CONCRETE COMPOSITES, 2006, 28 (08) :696-706

[10] Microstructural properties of the bulk matrix and the steel/cement paste interface in reinforced concrete, maintained in conditions of corrosion and cathodic protection [J].

Koleva, D. A. ;

Guo, Z. ;

van Breugel, K. ;

de Wit, J. H. W. .

MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION, 2010, 61 (07) :561-567

← 1 2 3 4 →