Cellular Automata-Based Chloride Ion Diffusion Modelling of Concrete Bridge under Multifactor Coupling Action

Abstract:

In order to accurately simulate the diffusion of chloride ion in the existing concrete bridge and acquire the precise concentration of chloride ion at any time, a Cellular Automata(CA)-based model is proposed. Firstly, the process of chloride ion diffusion is analyzed by the CA method and a nonlinear solution to the Fick’s second law is obtained. Secondly, considering the impact of various factors such as stress states, temporal and spatial variability of diffusion parameters and water-cement ratio on the process of chloride ion diffusion, the model of chloride ion diffusion under multifactor coupling is presented. Finally, a chloride ion penetrating experiment is used to prove the effectiveness and reasonability of this present method. A T-type beam is taken as an illustrative example to analyze the process of chloride ion diffusion.

• Periodical: Advanced Materials Research (Volumes 368-373)
• Pages: 1407-1410
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.368-373.1407
• Online since: October 2011
• Authors: Jin Song Zhu, Li Kun He
• Keywords: Cellular Automata (CA), Chloride Ion Diffusion, Concrete Bridge, Multifactor Coupling

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