Deterioration of Concrete by Leaching in Conditions of Long-Term Bending Performance - Simplified Theoretical Approach

Abstract:

Based on the results of previous research it could be stated that the deterioration of concrete elements by leaching process could be described by the simplified diffusion function. However the results of Schneider and Chen showed that the deterioration of concrete elements by leaching could differ significantly if they are subjected to permanent bending performance. Their experimental data pointed out that after a certain time the deterioration course of loaded concrete elements significantly changes and these elements lose their strength faster than the unloaded control specimens.Article outlines the possible theoretical solution of this phenomenon. The developed theoretical models where applied to the experimental results of Schneider and Chen [3], [2]. The main task was to find a simplified engineering solution to the problem of the stress corrosion of the concrete in ammonium nitrate solution.

• Periodical: Key Engineering Materials (Volume 691)
• Pages: 28-39
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.691.28
• Online since: May 2016
• Authors: Peter Paulík
• Keywords: Concrete, Deterioration, Leaching, Long-Term Bending

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