EVA enhanced cementitious materials based coatings for the improvement of steel reinforcement corrosion protection performance
文献类型：期刊论文
| 作者 | Shang, Huaishuai1; Hou, Guanhao1,2; Sun, Congtao2; Lu, Dongzhu2; Zhao, Xia2 ; Fan, Liang2
|
| 刊名 | JOURNAL OF BUILDING ENGINEERING
 |
| 出版日期 | 2023-09-15 |
| 卷号 | 75页码:20 |
| 关键词 | Cement-based coating EVA Nano-silica Corrosion Steel bar |
| DOI | 10.1016/j.jobe.2023.107080 |
| 通讯作者 | Fan, Liang(fanl@qdio.ac.cn) |
| 英文摘要 | Cement-based coatings with higher content of polymers have been demonstrated to provide en-hanced corrosion protection for steel reinforcement, however, they may reduce the bonding strength between steel bars and concrete. In this research, cementitious materials comprising ce -ment, silica fume, and fly ash with weight proportions ranging from 85% to 100% were used as the primary constituents of the cement-based coatings. EVA powder with weight fractions vary-ing from 0% to 15% and nano-silica with contents up to 1% are added to the coating formulation to promote coating performance. The results of electrochemical tests including linear polariza-tion resistance and electrochemical impedance spectroscopy show that addition of EVA powder, silica fume, and nano-silica can substantially increase and decrease the coating resistance and corrosion current density of the coated steel bar, respectively. When 15% EVA, 1% silica fume and 0.5% nano-silica are added to the coating formulation, the coating can provide the best anti-corrosion performance for the steel bar. The integrated polymer film shown in the SEM image and the undetected chloride ions at the vicinity of the coated steel bar obtained from EDS analysis also demonstrate the excellent protective performance of the cement-based coating against corro-sion. |
| WOS关键词 | FLY-ASH ; SILICA FUME ; MECHANICAL-PROPERTIES ; CONCRETE ; PARTICLES ; HYDRATION ; MORTARS |
| 资助项目 | Major Research Projects of Shandong Natural Science Foundation ; Qingdao Munic- ipal Science and Technology Benefit People Demonstration and Guidance Project ; [ZR2022ZD33] |
| WOS研究方向 | Construction & Building Technology ; Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001058919600001 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/182906]  |
| 专题 | 海洋研究所_海洋腐蚀与防护研究发展中心 |
| 通讯作者 | Fan, Liang |
| 作者单位 | 1.Qingdao Univ Technol, Sch Civil Engn, Qingdao 266033, Shandong, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shang, Huaishuai,Hou, Guanhao,Sun, Congtao,et al. EVA enhanced cementitious materials based coatings for the improvement of steel reinforcement corrosion protection performance[J]. JOURNAL OF BUILDING ENGINEERING,2023,75:20. |
| APA | Shang, Huaishuai,Hou, Guanhao,Sun, Congtao,Lu, Dongzhu,Zhao, Xia,&Fan, Liang.(2023).EVA enhanced cementitious materials based coatings for the improvement of steel reinforcement corrosion protection performance.JOURNAL OF BUILDING ENGINEERING,75,20. |
| MLA | Shang, Huaishuai,et al."EVA enhanced cementitious materials based coatings for the improvement of steel reinforcement corrosion protection performance".JOURNAL OF BUILDING ENGINEERING 75(2023):20. |
入库方式： OAI收割
来源：海洋研究所
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