Study on air-pipe cooling effect and cooling strategy of mass reinforced concrete wall
Abstract The artificial cooling of mass concrete during reconstruction is essential for preventing structural cracking due to hydration heat. For tanks and other mass post-tensioned prestressed concrete structures, pre-cooled air can be injected into prestressed rebar pipes to facilitate concrete co...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-03-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-87033-4 |
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| author | Fei Yan Zhenyi Luo Yan Geng Xiongyan Li |
| author_facet | Fei Yan Zhenyi Luo Yan Geng Xiongyan Li |
| author_sort | Fei Yan |
| collection | DOAJ |
| description | Abstract The artificial cooling of mass concrete during reconstruction is essential for preventing structural cracking due to hydration heat. For tanks and other mass post-tensioned prestressed concrete structures, pre-cooled air can be injected into prestressed rebar pipes to facilitate concrete cooling. This air-pipe cooling method eliminates the need for special cooling pipes embedded within the concrete. Thermos-fluid–solid coupling finite element (FE) models were used to assess the temperature distribution and cracking risk in mass concrete walls. The heat transfer coefficient at the concrete-pipe-air interface and its influence factors were researched in this paper. Multiple cooling strategies have been proposed, and comparative analyses have been conducted to identify the most effective cooling approach. |
| format | Article |
| id | doaj-art-fd6955bcc8844292b1bfdd09e20cf5aa |
| institution | OA Journals |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-fd6955bcc8844292b1bfdd09e20cf5aa2025-08-20T01:54:22ZengNature PortfolioScientific Reports2045-23222025-03-0115111410.1038/s41598-025-87033-4Study on air-pipe cooling effect and cooling strategy of mass reinforced concrete wallFei Yan0Zhenyi Luo1Yan Geng2Xiongyan Li3School of Civil Engineering, Hunan University of Science and TechnologySchool of Civil Engineering, Hunan University of Science and TechnologyCentral Research Institute of Building and Construction Co., Ltd, MCC GroupCollege of Architecture and Civil Engineering, Beijing University of TechnologyAbstract The artificial cooling of mass concrete during reconstruction is essential for preventing structural cracking due to hydration heat. For tanks and other mass post-tensioned prestressed concrete structures, pre-cooled air can be injected into prestressed rebar pipes to facilitate concrete cooling. This air-pipe cooling method eliminates the need for special cooling pipes embedded within the concrete. Thermos-fluid–solid coupling finite element (FE) models were used to assess the temperature distribution and cracking risk in mass concrete walls. The heat transfer coefficient at the concrete-pipe-air interface and its influence factors were researched in this paper. Multiple cooling strategies have been proposed, and comparative analyses have been conducted to identify the most effective cooling approach.https://doi.org/10.1038/s41598-025-87033-4Mass concreteAir-pipe coolingCooling strategyEarly-age cracking |
| spellingShingle | Fei Yan Zhenyi Luo Yan Geng Xiongyan Li Study on air-pipe cooling effect and cooling strategy of mass reinforced concrete wall Scientific Reports Mass concrete Air-pipe cooling Cooling strategy Early-age cracking |
| title | Study on air-pipe cooling effect and cooling strategy of mass reinforced concrete wall |
| title_full | Study on air-pipe cooling effect and cooling strategy of mass reinforced concrete wall |
| title_fullStr | Study on air-pipe cooling effect and cooling strategy of mass reinforced concrete wall |
| title_full_unstemmed | Study on air-pipe cooling effect and cooling strategy of mass reinforced concrete wall |
| title_short | Study on air-pipe cooling effect and cooling strategy of mass reinforced concrete wall |
| title_sort | study on air pipe cooling effect and cooling strategy of mass reinforced concrete wall |
| topic | Mass concrete Air-pipe cooling Cooling strategy Early-age cracking |
| url | https://doi.org/10.1038/s41598-025-87033-4 |
| work_keys_str_mv | AT feiyan studyonairpipecoolingeffectandcoolingstrategyofmassreinforcedconcretewall AT zhenyiluo studyonairpipecoolingeffectandcoolingstrategyofmassreinforcedconcretewall AT yangeng studyonairpipecoolingeffectandcoolingstrategyofmassreinforcedconcretewall AT xiongyanli studyonairpipecoolingeffectandcoolingstrategyofmassreinforcedconcretewall |