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Modeling and probabilistic evaluation of repair strategies in the initiation phase of chloride-induced corrosion of the reinforcement of concrete structures
Van Den Hende, K.; Helderweirt, S.; Botte, W.; Matthys, S.; Lombaert, G.; Caspeele, R. (2024). Modeling and probabilistic evaluation of repair strategies in the initiation phase of chloride-induced corrosion of the reinforcement of concrete structures. Structural Concrete 25(2): 1257-1274. https://dx.doi.org/10.1002/suco.202300784
In: Structural Concrete. Ernst & Sohn: Berlin. ISSN 1464-4177; e-ISSN 1751-7648, meer
Peer reviewed article  
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Author keywords
    concrete repair; probabilistic modeling; chloride-induced corrosion
Auteurs  Top 
  • Van Den Hende, K., meer
  • Helderweirt, S., meer
  • Botte, W., meer
Abstract
    Chloride ingress is a common issue in concrete structures that can result in reinforcement corrosion. In order to extend the lifetime of a structure, several preventive repair methodologies are available, which reduce the ingress of chlorides. In this work, the computational efficiency of the analytical model for a two-material diffusion problem has been improved to model the effect of a mortar overlay or partial cover replacement, and is further implemented to model the influence of a coating. This enables the assessment of each repair method in a probabilistic framework using Latin hypercube samples within an acceptable timeframe. A parameter study executed in both a deterministic and probabilistic framework demonstrated the model efficiency and the importance of the timing and quality of the intervention for successful repair when applying a repair intervention in the initiation phase.
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