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Effect of Freeze–Thaw Cycle Times on Basic Properties and Bond Performance with Steel Reinforcement of Tunnel Lining Concrete in the Tibetan Plateau.

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Title: Effect of Freeze–Thaw Cycle Times on Basic Properties and Bond Performance with Steel Reinforcement of Tunnel Lining Concrete in the Tibetan Plateau.
Authors: Zang, Yamei1,2 (AUTHOR), Zhan, Yulin2 (AUTHOR), Guo, Dongchen3 (AUTHOR), Liang, Shixin3,4 (AUTHOR), Zhao, Qi1 (AUTHOR), Tao, Qinghua2,4 (AUTHOR), Yu, Hongfa3,4 (AUTHOR)
Source: Materials (1996-1944). May2026, Vol. 19 Issue 10, p1952. 21p.
Subjects: Freeze-thaw cycles, Interfacial bonding, Concrete, Tensile tests, Finite element method, Reinforcing bars
Geographic Terms: Tibet (China)
Abstract: To investigate the bond performance between reinforcement and tunnel lining concrete under freeze–thaw cycles in plateau regions, pull-out tests were conducted on secondary-lining-reinforced concrete specimens subjected to different numbers of freeze–thaw cycles. The variations in the fundamental properties of the lining concrete, as well as the bond stress and maximum slip between the reinforcement and the concrete, were examined. The results indicate that, with an increasing number of freeze–thaw cycles, the mass of the lining concrete first increases and then decreases, while the compressive strength and splitting strength gradually decrease. The bond stress between the reinforcement and concrete shows a decreasing trend, whereas the maximum slip exhibits an increasing trend. Furthermore, a finite element model of the reinforced concrete pull-out specimen was established using ABAQUS software to simulate the bond performance under different freeze–thaw cycles. The comparison between experimental and simulated results validates the rationality of the finite element model. This study provides a reference for understanding the bond–slip behavior of tunnel lining reinforced concrete subjected to freeze–thaw environments in cold plateau regions. [ABSTRACT FROM AUTHOR]
Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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Header DbId: egs
DbLabel: Engineering Source
An: 194116788
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PubTypeId: academicJournal
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  Label: Title
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  Data: Effect of Freeze–Thaw Cycle Times on Basic Properties and Bond Performance with Steel Reinforcement of Tunnel Lining Concrete in the Tibetan Plateau.
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  Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. May2026, Vol. 19 Issue 10, p1952. 21p.
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  Data: <searchLink fieldCode="DE" term="%22Freeze-thaw+cycles%22">Freeze-thaw cycles</searchLink><br /><searchLink fieldCode="DE" term="%22Interfacial+bonding%22">Interfacial bonding</searchLink><br /><searchLink fieldCode="DE" term="%22Concrete%22">Concrete</searchLink><br /><searchLink fieldCode="DE" term="%22Tensile+tests%22">Tensile tests</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Reinforcing+bars%22">Reinforcing bars</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Tibet+%28China%29%22">Tibet (China)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: To investigate the bond performance between reinforcement and tunnel lining concrete under freeze–thaw cycles in plateau regions, pull-out tests were conducted on secondary-lining-reinforced concrete specimens subjected to different numbers of freeze–thaw cycles. The variations in the fundamental properties of the lining concrete, as well as the bond stress and maximum slip between the reinforcement and the concrete, were examined. The results indicate that, with an increasing number of freeze–thaw cycles, the mass of the lining concrete first increases and then decreases, while the compressive strength and splitting strength gradually decrease. The bond stress between the reinforcement and concrete shows a decreasing trend, whereas the maximum slip exhibits an increasing trend. Furthermore, a finite element model of the reinforced concrete pull-out specimen was established using ABAQUS software to simulate the bond performance under different freeze–thaw cycles. The comparison between experimental and simulated results validates the rationality of the finite element model. This study provides a reference for understanding the bond–slip behavior of tunnel lining reinforced concrete subjected to freeze–thaw environments in cold plateau regions. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.3390/ma19101952
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 21
        StartPage: 1952
    Subjects:
      – SubjectFull: Freeze-thaw cycles
        Type: general
      – SubjectFull: Interfacial bonding
        Type: general
      – SubjectFull: Concrete
        Type: general
      – SubjectFull: Tensile tests
        Type: general
      – SubjectFull: Finite element method
        Type: general
      – SubjectFull: Reinforcing bars
        Type: general
      – SubjectFull: Tibet (China)
        Type: general
    Titles:
      – TitleFull: Effect of Freeze–Thaw Cycle Times on Basic Properties and Bond Performance with Steel Reinforcement of Tunnel Lining Concrete in the Tibetan Plateau.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Zang, Yamei
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            NameFull: Zhan, Yulin
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            NameFull: Guo, Dongchen
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            NameFull: Liang, Shixin
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            NameFull: Zhao, Qi
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            NameFull: Tao, Qinghua
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            – D: 15
              M: 05
              Text: May2026
              Type: published
              Y: 2026
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              Value: 19961944
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              Value: 19
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              Value: 10
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            – TitleFull: Materials (1996-1944)
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