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Numerical Analysis on Freezing Rate and Chloride Transport in Concrete Subjected to Freeze-Thaw Cycles
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Linjie LI1, Qingfeng LIU1, 2
Journal of the Chinese Ceramic Society | 2022, 50(8) : 2245 - 2256
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Journal of the Chinese Ceramic Society | 2022, 50(8): 2245-2256
• Research Articles •
Numerical Analysis on Freezing Rate and Chloride Transport in Concrete Subjected to Freeze-Thaw Cycles
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Linjie LI1, Qingfeng LIU1, 2
Affiliations
  • 1.State Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • 2.Shanghai Key Laboratory for Digital Maintenance of Buildings and Infrastructure, Shanghai 200240, China
  • LI Linjie (1995-), female, Master candidate. E-mail:

About Author:

LI Linjie (1995-), female, Master candidate. E-mail:

Published: 2022-08-20 doi: 10.14062/j.issn.0454-5648.20211102
Outline
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The durability problem of concrete structures is severe in deicing salt and marine areas. The coarsen of pore structure caused by freeze-thaw cycles (FTCs) can promote chloride transport. The pore solution can freeze into ice during the decrease of freezing temperature and consequently block chloride transport. Also, the change of chloride concentration affects the phase transition of pore solution and then chloride transport. This paper proposed a model considering freezing rate of porous solution during FTCs to analyze the effect of icing on the ionic transport. A multi-phase numerical model for coupling the binary actions of freeze-thaw and chloride transport was proposed and also verified via multiple third-party experiments. The results indicate that the freezing rate and chloride concentration increase with the increase of FTCs, and the temperature and duration of FTC both have an impact on the chloride transport. In addition, the increase of solution concentration also accelerates the chloride transport and the concrete structure deterioration although it is conducive to the decrease of pore freezing temperature and freezing rate.

concrete durability  /  freeze-thaw cycles  /  chloride  /  multi-phase numerical model  /  freezing rate
李林洁, 刘清风. 冻融循环下混凝土内部结冰及氯离子传输规律的数值研究. 硅酸盐学报, 2022 , 50 (8) : 2245 -2256 . DOI: 10.14062/j.issn.0454-5648.20211102
Linjie LI, Qingfeng LIU. Numerical Analysis on Freezing Rate and Chloride Transport in Concrete Subjected to Freeze-Thaw Cycles[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (8) : 2245 -2256 . DOI: 10.14062/j.issn.0454-5648.20211102
Year 2022 volume 50 Issue 8
38
4
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Article Info
doi: 10.14062/j.issn.0454-5648.20211102
  • Receive Date:2021-12-16
  • Online Date:2026-10-20
  • Published:2022-08-20
Article Data
Affiliations
History
  • Received:2021-12-16
  • Revised:2022-02-28
Funding
Affiliations
    1.State Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
    2.Shanghai Key Laboratory for Digital Maintenance of Buildings and Infrastructure, Shanghai 200240, China

Corresponding:

LIU Qingfeng (1986-), male, Ph.D., Associate Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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