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Computers and Concrete
  Volume 6, Number 5, October 2009 , pages 421-435
DOI: https://doi.org/10.12989/cac.2009.6.5.421
 


Simulation of chloride penetration into concrete structures subjected to both cyclic flexural loads and tidal effects
Tran Van Mien, Boonchai Stitmannaithum and Toyoharu Nawa

 
Abstract
    Chloride induced corrosion is a concern that governs the durability of concrete structures in marine environments, especially in tidal environments. During the service lives of concrete structures, internal cracks in the concrete cover may appear due to imposed loads, accelerating chloride penetration because of the simultaneous action of environmental and service structural loads. This paper investigated the effects of cyclic flexural loads on chloride diffusion characteristics of plain concretes, and proposed a model to predict the chloride penetration into plain concretes subjected to both tidal environments and different cyclic flexural load levels. Further, a new experiment was performed to verify the model. Results of the model using Finite Difference Method (FDM) showed that the durability of concretes in tidal environments was reduced as cyclic flexural load levels, SR, increased, and the modeling results fitted well with the experimental results.
 
Key Words
    chloride penetration; cyclic flexural load; actual concrete structures; model.
 
Address
Tran Van Mien: Department of Civil Engineering, Chulalongkorn University, BKK 10330, Thailand
Boonchai Stitmannaithum: Department of Civil Engineering, Chulalongkorn University, BKK 10330, Thailand
Toyoharu Nawa: Graduate School of Engineering, Hokkaido University, Hokkaido 060-8628, Japan
 

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