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Estimation of Corrosion Current Density Considering the Uncertainty of the Model Parameters Cover

Estimation of Corrosion Current Density Considering the Uncertainty of the Model Parameters

By: Faustyn Recha  
Open Access
|Mar 2026

Abstract

This article presents problems related to the diagnosis of reinforced concrete structures exposed to reinforcement corrosion. Based on the analysis of inverse problems, the possibility of using the effects of structural deformation to estimate the basic corrosion parameter, i.e., the corrosion current density, is demonstrated. The main goal of the paper was to demonstrate the feasibility of applying the Monte Carlo method, which considers the uncertainty of model parameters, to estimate corrosion current based on structural deformation. This is a new, previously unpublished element of the proposed model. The presented approach provides an auxiliary problem in the corrosion diagnosis of reinforced concrete structures, which includes corrosion processes subject to high uncertainty. The obtained results confirm the validity of the model assumptions and the need to use methods that account for a 5–20% scatter in individual uncertain parameters. The results were verified based on actual results of corrosion current measurements under laboratory conditions performed as part of another research project. The paper concludes with a summary indicating directions for further development of the proposed methodology.

DOI: https://doi.org/10.2478/cee-2026-0028 | Journal eISSN: 2199-6512 | Journal ISSN: 1336-5835
Language: English
Page range: 282 - 293
Submitted on: Jul 30, 2025
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Accepted on: Sep 24, 2025
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Published on: Mar 24, 2026
Published by: University of Žilina
In partnership with: Paradigm Publishing Services
Publication frequency: 2 issues per year

© 2026 Faustyn Recha, published by University of Žilina
This work is licensed under the Creative Commons Attribution 4.0 License.