| Chloride Ion Diffusion Coefficient Model of R.C. Elements under Multiple Factors |
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| 作者姓名： | TENG Hai-wen SHU Zheng-chang HUANG Ying and HUO Da |
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| 作者单位： | College of Architecture and Civil Engineering,Key Lab of Urban Security and Disaster Engineering,MOE, Beijing University of Technology, Beijing 100124,P.R. China;College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124,P.R. China;College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124,P.R. China;College of Architecture and Civil Engineering,Key Lab of Urban Security and Disaster Engineering,MOE, Beijing University of Technology, Beijing 100124,P.R. China |
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| 摘 要： | Based on the analysis of chloride ion-induced erosion mechanism of reinforced concrete and the Fick’s second law, a multi-factor model of the chloride ion erosion is established. In this model, the influences of water-cement ratio, humidity, time, temperature, and chloride ion binding capacity of concrete are taken into consideration, and the mathematic solution to the new model is provided by considering the boundary conditions. The new model is verified by analyzing the long-term exposed experiment data. Compared with the traditional model of Fick's second law, the model can indicate the development trend of the structure eroded by chloride and the chloride ion concentration in different depth, and at the same time, it can predicate the chlorine ion concentration on rebar surface in different corrosion periods and the initiation corrosion time of reinforcement.
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| 关 键 词： | erosion diffusion coefficient multiple factors R.C. elements |
| 收稿时间： | 6/2/2010 12:00:00 AM |
Chloride Ion Diffusion Coefficient Model of R.C. Elements under Multiple Factors |
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| TENG Hai-wen,SHU Zheng-chang,HUANG Ying and HUO Da.Chloride Ion Diffusion Coefficient Model of R.C. Elements under Multiple Factors[J].Storage & Process,2011(1):12-16. |
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| Authors: | TENG Hai-wen SHU Zheng-chang HUANG Ying and HUO Da |
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| Institution: | College of Architecture and Civil Engineering,Key Lab of Urban Security and Disaster Engineering,MOE, Beijing University of Technology, Beijing 100124,P.R. China;College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124,P.R. China;College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124,P.R. China;College of Architecture and Civil Engineering,Key Lab of Urban Security and Disaster Engineering,MOE, Beijing University of Technology, Beijing 100124,P.R. China |
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| Abstract: | |
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| Keywords: | erosion diffusion coefficient multiple factors R C elements |
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