Inhibition effect and mechanism of polyacrylamide for steel corrosion in simulated concrete pore solution

被引：37

作者：

Zhi, Fangfang ^{[1
]}

Jiang, Linhua ^{[1
]}

Jin, Ming ^{[1
]}

Xu, Peng ^{[1
]}

Xiao, Beibei ^{[2
]}

Jiang, Quanguo ^{[1
]}

Chen, Lei ^{[1
]}

Gu, Yue ^{[1
]}

机构：

[1] Hohai Univ, Coll Mech & Mat, Nanjing 210098, Peoples R China

[2] Jiangsu Univ Sci & Technol, Sch Energy & Power Engn, Zhenjiang, Jiangsu, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2020年 / 259卷

基金：

国家重点研发计划;

关键词：

Polyacrylamide; Steel corrosion; Electrochemical methods; Molecular dynamics; Simulated concrete pore solution; CHLORIDE-INDUCED CORROSION; VISCOSITY-ENHANCING ADMIXTURES; SELF-CONSOLIDATING CONCRETE; MILD-STEEL; REINFORCING STEEL; CARBON-STEEL; RHEOLOGICAL PROPERTIES; MOLECULAR-DYNAMICS; COPPER CORROSION; FLY-ASH;

D O I：

10.1016/j.conbuildmat.2020.120425

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The research examined the effect of polyacrylamide (PAM) on corrosion inhibition performance for steel in the simulated concrete pore solution. Linear polarization resistance, electrochemical impedance spectroscopy, potentiodynamic polarization, X-ray Photoelectron Spectroscopy and molecular dynamics simulations are performed to investigate the inhibitive effect and mechanism of PAM for steel corrosion. Results reveal that PAM improves the inhibition performance of steel corrosion and the inhibition efficiency increases with PAM content increasing. The maximum inhibition efficiency (about 99%) is achieved when the concentration of PAM is 0.15%. The improvement of corrosion inhibitive performance by PAM is due to the generation of adsorption film on steel, and the adsorption of PAM is following the Langmuir adsorption isotherm. In addition, the inhibition mechanism by PAM on steel corrosion is determined using molecular dynamics simulations. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：10

共 81 条

[41] Study on the performance of a new type of water-repellent admixture for cement mortar [J].

Lu, ZY ;

Zhou, XH ;

Zhang, JY .

CEMENT AND CONCRETE RESEARCH, 2004, 34 (11) :2015-2019

[42] 4-aminoazobenzene modified natural glucomannan as a green eco-friendly inhibitor for the mild steel in 0.5 M HCl solution [J].

Luo, Xiaohu ;

Ci, Chenggang ;

Li, Ji ;

Lin, Kaidong ;

Du, Shuo ;

Zhang, Huixia ;

Li, Xiangbo ;

Cheng, Y. Frank ;

Zang, Jiechao ;

Liu, Yali .

CORROSION SCIENCE, 2019, 151 :132-142

[43] Effect of concrete rheological properties on quality of formed surfaces cast with self-consolidating concrete and superworkable concrete [J].

Megid, Wael A. ;

Khayat, Kamal H. .

CEMENT & CONCRETE COMPOSITES, 2018, 93 :75-84

[44] Improving flexural performance of ultra-high-performance concrete by rheology control of suspending mortar [J].

Meng, Weina ;

Khayat, Kamal Henri .

COMPOSITES PART B-ENGINEERING, 2017, 117 :26-34

[45] Corrosion behaviour of a Low Ni austenitic stainless steel in carbonated chloride-polluted alkali-activated fly ash mortar [J].

Monticelli, C. ;

Criado, M. ;

Fajardo, S. ;

Bastidas, J. M. ;

Abbottoni, M. ;

Balbo, A. .

CEMENT AND CONCRETE RESEARCH, 2014, 55 :49-58

[46] Chloride-induced corrosion of steel rebars in simulated pore solutions of alkali-activated concretes [J].

Mundra, Shishir ;

Criado, Maria ;

Bernal, Susan A. ;

Provis, John L. .

CEMENT AND CONCRETE RESEARCH, 2017, 100 :385-397

[47] Influence of cement grouts composition on the rheological behaviour [J].

Nguyen, Viet-Hung ;

Remond, Sebastien ;

Gallias, Jean-Louis .

CEMENT AND CONCRETE RESEARCH, 2011, 41 (03) :292-300

[48] Theoretical evaluation of corrosion inhibition performance of some pyrazine derivatives [J].

Obot, I. B. ;

Gasem, Z. M. .

CORROSION SCIENCE, 2014, 83 :359-366

[49] A study of organic substances as inhibitors for chloride-induced corrosion in concrete [J].

Ormellese, Marco ;

Lazzari, Luciano ;

Goidanich, Sara ;

Fumagalli, Gabriele ;

Brenna, Andrea .

CORROSION SCIENCE, 2009, 51 (12) :2959-2968

[50] A synergistic effect between gluconate and molybdate on corrosion inhibition of recirculating cooling water systems [J].

Ou, Hsin-Hung ;

Quynh Thi Phuong Tran ;

Lin, Po-Hsun .

CORROSION SCIENCE, 2018, 133 :231-239

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