A mushy region in concrete corrosion

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In this work a mathematical model already known for the corrosion of sewer pipes is further considered, enriched and an approximate analytical solution is given based on a quasi-steady approximation. Furthermore an extension of this model is constructed allowing the formation of a mushy region, i.e. a region in which the material is only partly corroded throughout the process. This more general model is derived via an averaging process by microscopic considerations and has the form of a macroscopic phase field model. The derived model in its various forms is solved numerically with a finite element method and the results, predicting corrosion within a reasonable range, are presented. © 2010 Elsevier Inc.




Nikolopoulos, C. V. (2010). A mushy region in concrete corrosion. Applied Mathematical Modelling, 34(12), 4012–4030. https://doi.org/10.1016/j.apm.2010.04.005

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