Permeation Characteristics and Surface Accumulation of Chloride in Different Zones of Concrete along Altitude in Marine Environments
The accumulation characteristics of surface chloride in concrete in different zones are different in the marine environment. A series of laboratory experiments were conducted to investigate the surface chloride and permeation characteristics of concrete in a simulated marine environment. The experim...
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| Format: | Article |
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MDPI AG
2021-06-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/11/7/722 |
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| author | Hong Chang Zhicheng Zhang Zhanguo Ma Yongsheng Ji Xinshuo Huang |
| author_facet | Hong Chang Zhicheng Zhang Zhanguo Ma Yongsheng Ji Xinshuo Huang |
| author_sort | Hong Chang |
| collection | DOAJ |
| description | The accumulation characteristics of surface chloride in concrete in different zones are different in the marine environment. A series of laboratory experiments were conducted to investigate the surface chloride and permeation characteristics of concrete in a simulated marine environment. The experimental results indicated that the surface chloride and chloride profiles of concrete in different zones of marine environment decreased in the following order: tidal zone > splash zone > submerged zone > atmospheric zone. The width of the ascent zone of Cl<sup>−</sup> concentration at tidal and splash zones was far less than that of the influential depth of moisture transport (IDMT), and the range of convection zone was dependent on the IDMT. Cl<sup>−</sup> at splash and tidal zones penetrated into concrete as a bulk liquid by non-saturated permeation driven by a humidity gradient. The change of chloride profiles in concrete along the altitudinal gradient was consistent with that of the cyclic water absorption amount (CWAA). The transport rate of chloride was the highest at the highest point of the tide. |
| first_indexed | 2024-03-10T10:09:14Z |
| format | Article |
| id | doaj.art-e702193e264e485895122003dc4a3315 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T10:09:14Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-e702193e264e485895122003dc4a33152023-11-22T01:22:53ZengMDPI AGCrystals2073-43522021-06-0111772210.3390/cryst11070722Permeation Characteristics and Surface Accumulation of Chloride in Different Zones of Concrete along Altitude in Marine EnvironmentsHong Chang0Zhicheng Zhang1Zhanguo Ma2Yongsheng Ji3Xinshuo Huang4Jiangsu Key Laboratory of Environmental Impact and Structural Safety in Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaJiangsu Key Laboratory of Environmental Impact and Structural Safety in Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaThe accumulation characteristics of surface chloride in concrete in different zones are different in the marine environment. A series of laboratory experiments were conducted to investigate the surface chloride and permeation characteristics of concrete in a simulated marine environment. The experimental results indicated that the surface chloride and chloride profiles of concrete in different zones of marine environment decreased in the following order: tidal zone > splash zone > submerged zone > atmospheric zone. The width of the ascent zone of Cl<sup>−</sup> concentration at tidal and splash zones was far less than that of the influential depth of moisture transport (IDMT), and the range of convection zone was dependent on the IDMT. Cl<sup>−</sup> at splash and tidal zones penetrated into concrete as a bulk liquid by non-saturated permeation driven by a humidity gradient. The change of chloride profiles in concrete along the altitudinal gradient was consistent with that of the cyclic water absorption amount (CWAA). The transport rate of chloride was the highest at the highest point of the tide.https://www.mdpi.com/2073-4352/11/7/722permeation characteristicsmoisture influential depthelevated altitudesurface chlorideconvective zone |
| spellingShingle | Hong Chang Zhicheng Zhang Zhanguo Ma Yongsheng Ji Xinshuo Huang Permeation Characteristics and Surface Accumulation of Chloride in Different Zones of Concrete along Altitude in Marine Environments Crystals permeation characteristics moisture influential depth elevated altitude surface chloride convective zone |
| title | Permeation Characteristics and Surface Accumulation of Chloride in Different Zones of Concrete along Altitude in Marine Environments |
| title_full | Permeation Characteristics and Surface Accumulation of Chloride in Different Zones of Concrete along Altitude in Marine Environments |
| title_fullStr | Permeation Characteristics and Surface Accumulation of Chloride in Different Zones of Concrete along Altitude in Marine Environments |
| title_full_unstemmed | Permeation Characteristics and Surface Accumulation of Chloride in Different Zones of Concrete along Altitude in Marine Environments |
| title_short | Permeation Characteristics and Surface Accumulation of Chloride in Different Zones of Concrete along Altitude in Marine Environments |
| title_sort | permeation characteristics and surface accumulation of chloride in different zones of concrete along altitude in marine environments |
| topic | permeation characteristics moisture influential depth elevated altitude surface chloride convective zone |
| url | https://www.mdpi.com/2073-4352/11/7/722 |
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