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    Modeling the Diffusion of Chloride Ion in Concrete Using Cellular Automaton

    Source: Journal of Materials in Civil Engineering:;2012:;Volume ( 024 ):;issue: 006
    Author:
    Jian Cao
    ,
    Yuanfeng Wang
    ,
    Keping Li
    ,
    Yishuo Ma
    DOI: 10.1061/(ASCE)MT.1943-5533.0000440
    Publisher: American Society of Civil Engineers
    Abstract: The diffusion of chloride ions is one of the main factors that arouses steel corrosion in concrete. In this paper, a two-dimension cellular automaton (CA) model was developed to simulate the diffusion process of chloride ions in concrete. The evolution rules of the proposed CA model were validated by comparing with the Fick’s second laws (FSL), and the distinctions between the CA model and the FSL were discussed pertaining to calculation methods and substantive characteristics of chloride ion penetration in concrete. Further, an improved CA model is proposed, called the JPCA model, which considers the jump probabilities of chloride ions varying with diffusion times and depths. The numerical simulations demonstrate that the computation results on the basis of the JPCA model are closer to the experimental data than those derived from the FSL. The JPCA model proposed in this paper provides a new way to study concrete suffering from chloride ion penetration.
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      Modeling the Diffusion of Chloride Ion in Concrete Using Cellular Automaton

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    http://yetl.yabesh.ir/yetl1/handle/yetl/66811
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    contributor authorJian Cao
    contributor authorYuanfeng Wang
    contributor authorKeping Li
    contributor authorYishuo Ma
    date accessioned2017-05-08T21:55:48Z
    date available2017-05-08T21:55:48Z
    date copyrightJune 2012
    date issued2012
    identifier other%28asce%29mt%2E1943-5533%2E0000473.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/66811
    description abstractThe diffusion of chloride ions is one of the main factors that arouses steel corrosion in concrete. In this paper, a two-dimension cellular automaton (CA) model was developed to simulate the diffusion process of chloride ions in concrete. The evolution rules of the proposed CA model were validated by comparing with the Fick’s second laws (FSL), and the distinctions between the CA model and the FSL were discussed pertaining to calculation methods and substantive characteristics of chloride ion penetration in concrete. Further, an improved CA model is proposed, called the JPCA model, which considers the jump probabilities of chloride ions varying with diffusion times and depths. The numerical simulations demonstrate that the computation results on the basis of the JPCA model are closer to the experimental data than those derived from the FSL. The JPCA model proposed in this paper provides a new way to study concrete suffering from chloride ion penetration.
    publisherAmerican Society of Civil Engineers
    titleModeling the Diffusion of Chloride Ion in Concrete Using Cellular Automaton
    typeJournal Paper
    journal volume24
    journal issue6
    journal titleJournal of Materials in Civil Engineering
    identifier doi10.1061/(ASCE)MT.1943-5533.0000440
    treeJournal of Materials in Civil Engineering:;2012:;Volume ( 024 ):;issue: 006
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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