| タイトル |
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en
Development of pore water pressure during freeze-thaw cycles in weather conditions
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| 作成者 |
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| アクセス権 |
open access |
| 権利情報 |
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| 主題 |
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Other
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Frost damage
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Other
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Masonry
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Other
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Numerical simulation
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Other
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Weather condition
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Other
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Solar radiation
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Other
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Poromechanics
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| 内容注記 |
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Abstract
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To assess the risk of frost damage to building materials, the mechanisms of pressure development in a material due to freezing under weather conditions should be adequately understood. In this study, we have demonstrated the evolution of pore water pressure in a brick wall during cyclic freezing and thawing caused by changes in air temperature and solar radiation. We developed a coupled hygrothermal and mechanical model of brick walls based on the theory of poromechanics. The calculation results showed that the water pressure in a south facing wall increases significantly during the night in a cold region. For a south facing wall, the surface thaws during the day due to solar radiation and freezes again at night, while the interior remains frozen throughout the day. We conclude that such incomplete freeze-thaw cycles in the weather conditions are much more damaging to building materials than a monotonous repetition of complete freezing and thawing.
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| 出版者 |
en
Elsevier B.V.
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| 日付 |
Issued2024-01
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Available2025-10-13
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| 言語 |
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| 資源タイプ |
journal article |
| 出版タイプ |
AM |
| 資源識別子 |
HDL
https://hdl.handle.net/20.500.14094/0100485464
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| 関連 |
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isVersionOf
DOI
https://doi.org/10.1016/j.coldregions.2023.104044
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| 収録誌情報 |
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PISSN
0165-232X
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EISSN
1872-7441
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en
Cold Regions Science and Technology
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巻217
開始ページ104044
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| ファイル |
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| コンテンツ更新日時 |
2025-10-20 |
