Inhibition resistance and mechanism of migrating corrosion inhibitor on reinforced concrete under coupled carbonation and chloride attack
文献类型：期刊论文
| 作者 | Wang, Hao1; Jiang, Minghui3; Hang, Meiyan1; Yang, Yubin2; Zhou, Xuebin5; Liu, Xiangju4; Xu, Guangfei2 |
| 刊名 | JOURNAL OF BUILDING ENGINEERING
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 76页码:19 |
| 关键词 | Reinforced concrete Carbonation Chloride attack Migrating corrosion inhibitor Inhibition mechanism |
| DOI | 10.1016/j.jobe.2023.107398 |
| 通讯作者 | Jiang, Minghui(15310062855@163.com) |
| 英文摘要 | Corrosion of steel bars in the marine environment is an important reason to reduce the service life of reinforced concrete structures. In this study, an amino alcohol migrating corrosion inhibitor (MCI) was coated on the concrete surface, which was then subjected to a simulated marine atmospheric environment by carbonation and salt spraying. The carbonation depth, chloride concentration of concrete, electrochemical performance of steel bars and mass loss rate of steel bar were determined to evaluate the corrosion inhibition performance of MCI. NELD-BS610 hardened concrete bubble spacing coefficient analyzer and scanning electron microscopy (SEM) were applied to analyze the pore structure parameters in concrete and the corrosion behavior of steel bar, respectively. The test results showed that MCI could alleviate the deterioration of concrete induced by accelerated carbonation and chloride attack, and delay the carbonation effect. After 7 days of accelerated carbonation and 35 days of chloride attack, the carbonation depth and chloride concentration of concrete coated with MCI were 16.07% and 16.93% lower than those of concrete uncoated with MCI, respectively. MCI could migrate to the steel bar surface of steel bar to form a protective film, significantly improving the electrochemical performance of the steel bar, and the inhibition efficiency of MCI was about 66.07 similar to 97.91%. Besides, MCI could also reduce the mass loss rate of steel bars and porosity of concrete induced by carbonation and chloride attack. For the specimens coated with MCI, the mass loss rates of steel bar decreased by 20.31 similar to 39.78%, and pores with sizes of 1.0 similar to 0.2 mu m in concrete reduced by 59.10 similar to 76.38%. The results of this research are purposeful for alleviating the corrosion damage problems of reinforced concrete in marine areas. |
| WOS关键词 | MILD-STEEL ; DURABILITY ; PROTECTION ; BEHAVIOR ; NITRITE ; TIME |
| 资助项目 | National Natural Science Foundation of China[52168033] ; Shandong Provincial Natural Science Foundation[ZR2022QB128] |
| WOS研究方向 | Construction & Building Technology ; Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001048128900001 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/182813]  |
| 专题 | 海洋研究所_海洋腐蚀与防护研究发展中心 |
| 通讯作者 | Jiang, Minghui |
| 作者单位 | 1.Inner Mongolia Univ Sci & Technol, Sch Civil Engn, Baotou 014010, Inner Mongolia, Peoples R China 2.Baotou Iron & Steel Vocat Tech Coll, Dept Architecture & Civil Engn, Baotou 014010, Inner Mongolia, Peoples R China 3.Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 5.Xian Univ Architecture & Technol, Sch Civil Engn, Xian 710055, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Hao,Jiang, Minghui,Hang, Meiyan,et al. Inhibition resistance and mechanism of migrating corrosion inhibitor on reinforced concrete under coupled carbonation and chloride attack[J]. JOURNAL OF BUILDING ENGINEERING,2023,76:19. |
| APA | Wang, Hao.,Jiang, Minghui.,Hang, Meiyan.,Yang, Yubin.,Zhou, Xuebin.,...&Xu, Guangfei.(2023).Inhibition resistance and mechanism of migrating corrosion inhibitor on reinforced concrete under coupled carbonation and chloride attack.JOURNAL OF BUILDING ENGINEERING,76,19. |
| MLA | Wang, Hao,et al."Inhibition resistance and mechanism of migrating corrosion inhibitor on reinforced concrete under coupled carbonation and chloride attack".JOURNAL OF BUILDING ENGINEERING 76(2023):19. |
入库方式： OAI收割
来源：海洋研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。