The Chloride Ion Penetration Model Coupled with Temperature and Moisture Transfer in marine environment
Considering the complexity of the chloride ion penetration in concrete exposed to marine environment,an integrated chloride penetration model coupled with temperature and moisture transfer is proposed.The governing equations and parameters embody fully the cross-impacts among thermal conduction,moisture transfer and chloride ion penetration.Furthermore,the four exposure conditions are classified based on the different contact with the aggressive marine environment,and then the micro-climate condition on the concrete surface is investigated according to the regional climate characteristics,therefore,a comprehensive analog simulation to the chloride penetration process is proposed.To demonstrate that the proposed numerical model can correctly simulate the chloride diffusion in concrete,the integrated chloride diffusion model is applied in reproducing a real experiment,finally the model gives good agreement with the experimental profiles,and it is proved the tidal zone exposure results in a more severe attack on the reinforcement.
Chloride ion Penetration Temperature-moisture transfer Concrete Bridge
Juan Zhao
College of Urban Construction and Safety Engineering,Shanghai Institute of Technology,No.100,Haiquan Rd.,Fengxian Dist.,Shanghai,China
国际会议
广州
英文
2422-2427
2012-11-16（万方平台首次上网日期，不代表论文的发表时间）