Ion corrosion behavior of tunnel lining concrete in complex underground salt environment
In this study, the ion corrosion behavior of tunnel lining concrete in complex underground salt corrosion environment was investigated using a self-designed corrosion simulation test device in a complex underground environment. The results indicated the following: the corrosion of flowing water lead...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S223878542300830X |
| _version_ | 1797798817696841728 |
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| author | Jian Yuan Zhaorui Zhang Qiang Fu Yan Wang Ditao Niu |
| author_facet | Jian Yuan Zhaorui Zhang Qiang Fu Yan Wang Ditao Niu |
| author_sort | Jian Yuan |
| collection | DOAJ |
| description | In this study, the ion corrosion behavior of tunnel lining concrete in complex underground salt corrosion environment was investigated using a self-designed corrosion simulation test device in a complex underground environment. The results indicated the following: the corrosion of flowing water leads to the dissolution of lining concrete, and the load promotes the development of cracks in the tensile area of lining concrete and inhibits the development of defects in the compression area, resulting in the transmission speed of chloride and sulfate ions in lining concrete under different corrosion conditions given as follows: concrete in tensile zone under flowing corrosive solution and load > flowing corrosion solution acting alone > static corrosion solution > concrete in compression zone under flowing corrosive solution and load. When the flowing corrosion solution alone and flowing corrosion solution and load act on the concrete in the tensile zone, the pore volume fraction of gel decreases and the macropore volume fraction increases. Under the combined action of static corrosion solution and flowing groundwater and load, the pore volume fraction of gel in the pressurized area increases and the harmless pore volume fraction decreases. |
| first_indexed | 2024-03-13T04:09:35Z |
| format | Article |
| id | doaj.art-a56cfbb7d7184a02bdfee61c8616d87b |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-13T04:09:35Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-a56cfbb7d7184a02bdfee61c8616d87b2023-06-21T06:56:53ZengElsevierJournal of Materials Research and Technology2238-78542023-05-012448754887Ion corrosion behavior of tunnel lining concrete in complex underground salt environmentJian Yuan0Zhaorui Zhang1Qiang Fu2Yan Wang3Ditao Niu4Academy of Combat Support, Rocket Force University of Engineering, Xi'an 710025, PR ChinaSchool of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, PR ChinaSchool of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, PR China; State Key Laboratory of Green Building in Western China, Xi'an University of Architecture and Technology, Xi'an 710055, PR China; Corresponding author.College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi′an 710055, PR ChinaSchool of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, PR China; State Key Laboratory of Green Building in Western China, Xi'an University of Architecture and Technology, Xi'an 710055, PR ChinaIn this study, the ion corrosion behavior of tunnel lining concrete in complex underground salt corrosion environment was investigated using a self-designed corrosion simulation test device in a complex underground environment. The results indicated the following: the corrosion of flowing water leads to the dissolution of lining concrete, and the load promotes the development of cracks in the tensile area of lining concrete and inhibits the development of defects in the compression area, resulting in the transmission speed of chloride and sulfate ions in lining concrete under different corrosion conditions given as follows: concrete in tensile zone under flowing corrosive solution and load > flowing corrosion solution acting alone > static corrosion solution > concrete in compression zone under flowing corrosive solution and load. When the flowing corrosion solution alone and flowing corrosion solution and load act on the concrete in the tensile zone, the pore volume fraction of gel decreases and the macropore volume fraction increases. Under the combined action of static corrosion solution and flowing groundwater and load, the pore volume fraction of gel in the pressurized area increases and the harmless pore volume fraction decreases.http://www.sciencedirect.com/science/article/pii/S223878542300830XTunnel lining concreteFlowing waterLoadingIon corrosionPore structure |
| spellingShingle | Jian Yuan Zhaorui Zhang Qiang Fu Yan Wang Ditao Niu Ion corrosion behavior of tunnel lining concrete in complex underground salt environment Journal of Materials Research and Technology Tunnel lining concrete Flowing water Loading Ion corrosion Pore structure |
| title | Ion corrosion behavior of tunnel lining concrete in complex underground salt environment |
| title_full | Ion corrosion behavior of tunnel lining concrete in complex underground salt environment |
| title_fullStr | Ion corrosion behavior of tunnel lining concrete in complex underground salt environment |
| title_full_unstemmed | Ion corrosion behavior of tunnel lining concrete in complex underground salt environment |
| title_short | Ion corrosion behavior of tunnel lining concrete in complex underground salt environment |
| title_sort | ion corrosion behavior of tunnel lining concrete in complex underground salt environment |
| topic | Tunnel lining concrete Flowing water Loading Ion corrosion Pore structure |
| url | http://www.sciencedirect.com/science/article/pii/S223878542300830X |
| work_keys_str_mv | AT jianyuan ioncorrosionbehavioroftunnelliningconcreteincomplexundergroundsaltenvironment AT zhaoruizhang ioncorrosionbehavioroftunnelliningconcreteincomplexundergroundsaltenvironment AT qiangfu ioncorrosionbehavioroftunnelliningconcreteincomplexundergroundsaltenvironment AT yanwang ioncorrosionbehavioroftunnelliningconcreteincomplexundergroundsaltenvironment AT ditaoniu ioncorrosionbehavioroftunnelliningconcreteincomplexundergroundsaltenvironment |