<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Remarkable place of reinforced concrete structures in construction field has been noted in wide number of recent researches. Subsequently, their degradation due to aggressive environment has become the topical problem nowadays. Therefore, the formulation of reliable technique for corroded element strength decrement is of great importance, and could be achieved only with the use of complex experimental and theoretical analysis. In this article an attempt is made to propose the mathematical approach to corrosive process modelling, taking into consideration the specifics of its development. According to thorough literature review on existing studies, main specifics of the process were indicated for further suppositions and assumptions formulation. Accordingly, the complex theoretical investigation with corresponding mathematical computations was conducted and results of analytical modelling were discussed. As the initial data for analytical modelling results of previously conducted experiments were used. Analysis of the obtained results shows rather high correspondence with the real conditions of structural element exploitation, taking into consideration material anisotropy and complexity of the corroded zone spread along the rebar cross-section. Proposed methodology for limit force decrease evaluation in general demonstrates reliable results and could be used for further evaluation of corrosion impacts on reinforced concrete elements bearing capacity.</p></abstract>

Remarkable place of reinforced concrete structures in construction field has been noted in wide number of recent researches. Subsequently, their degradation due to aggressive environment has become the topical problem nowadays. Therefore, the formulation of reliable technique for corroded element strength decrement is of great importance, and could be achieved only with the use of complex experimental and theoretical analysis. In this article an attempt is made to propose the mathematical approach to corrosive process modelling, taking into consideration the specifics of its development. According to thorough literature review on existing studies, main specifics of the process were indicated for further suppositions and assumptions formulation. Accordingly, the complex theoretical investigation with corresponding mathematical computations was conducted and results of analytical modelling were discussed. As the initial data for analytical modelling results of previously conducted experiments were used. Analysis of the obtained results shows rather high correspondence with the real conditions of structural element exploitation, taking into consideration material anisotropy and complexity of the corroded zone spread along the rebar cross-section. Proposed methodology for limit force decrease evaluation in general demonstrates reliable results and could be used for further evaluation of corrosion impacts on reinforced concrete elements bearing capacity.

Non-uniform corrosion of steel rebar and its influence on reinforced concrete elements` reliability

Production Engineering Archives

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Remarkable place of reinforced concrete structures in construction field has been noted in wide number of recent researches. Subsequently, their degradation...

Non-uniform corrosion of steel rebar and its influence on reinforced concrete elements` reliability

Published Online: Jun 25, 2020

Page range: 67 - 72

Received: Mar 17, 2020

Accepted: May 25, 2020

DOI: https://doi.org/10.30657/pea.2020.26.14

Keywords
corrosion, steel rebar, material anisotropy, mathematical modelling

© 2020 Yaroslav Blikharskyy et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Non-uniform corrosion of steel rebar and its influence on reinforced concrete elements` reliability

Published Online: Jun 25, 2020

Page range: 67 - 72

Received: Mar 17, 2020

Accepted: May 25, 2020

DOI: https://doi.org/10.30657/pea.2020.26.14

Keywordscorrosion, steel rebar, material anisotropy, mathematical modelling

© 2020 Yaroslav Blikharskyy et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
corrosion, steel rebar, material anisotropy, mathematical modelling