Research corrosion propagation time of reinforced concrete structures considering load influence
Prediction of propagation time of corrosion is a key element in evaluating the service life of corroded reinforced concrete (RC) structures. Corroded steel products often expand in volume and thus generate tensile stress in the concrete cover. When this tensile stress exceeds the tensile strength of...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2022-06-01
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| Series: | Archives of Civil Engineering |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/123624/PDF/art33.pdf |
| _version_ | 1818489397555757056 |
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| author | Dao Van Dinh Tran Viet Hung |
| author_facet | Dao Van Dinh Tran Viet Hung |
| author_sort | Dao Van Dinh |
| collection | DOAJ |
| description | Prediction of propagation time of corrosion is a key element in evaluating the service life of corroded reinforced concrete (RC) structures. Corroded steel products often expand in volume and thus generate tensile stress in the concrete cover. When this tensile stress exceeds the tensile strength of the concrete, cracking occurs. The tensile stresses in concrete due to corrosion are usually perpendicular to the longitudinal axis of the reinforcement. In the reinforced concrete beams, tensile stresses in concrete due to bending is perpendicular to the longitudinal direction of stirrups. In the reinforced concrete slabs, the tensile stresses in concrete due to bending is also perpendicular to the axis of longitudinal reinforcement subjected to bending in the other direction. In such cases, the tensile stresses in concrete due to corrosion of reinforcement has the same direction as the tensile stress caused by bending. When the load-induced stress in the concrete has the same direction as that of the corrosion-induced stress, cracks will likely appear more quickly and vice versa. The main objective of this paper is to build a predictive model of corrosion propagation time taking into account: (1) the effect of stresses due to load; (2) the change of corrosion current density. The model was implemented on Matlab software. The results show the influence of the load, and other parameters on the corrosion propagation stage, when considering the end of this corrosion propagation stage is cracking of concrete cover. |
| first_indexed | 2024-12-10T17:03:28Z |
| format | Article |
| id | doaj.art-17792b238c84423cb8352f1ec457850f |
| institution | Directory Open Access Journal |
| issn | 2300-3103 |
| language | English |
| last_indexed | 2024-12-10T17:03:28Z |
| publishDate | 2022-06-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Civil Engineering |
| spelling | doaj.art-17792b238c84423cb8352f1ec457850f2022-12-22T01:40:32ZengPolish Academy of SciencesArchives of Civil Engineering2300-31032022-06-01vol. 68No 2563576https://doi.org/10.24425/ace.2022.140659Research corrosion propagation time of reinforced concrete structures considering load influenceDao Van Dinh0https://orcid.org/0000-0002-0236-0953Tran Viet Hung1https://orcid.org/0000-0003-2614-7273Structural Engineering Section – University of Transport and Communications Add: No.3 Cau Giay Street, Lang Thuong ward, Dong Da District, Hanoi, VietnamStructural Engineering Section – University of Transport and Communications Add: No.3 Cau Giay Street, Lang Thuong ward, Dong Da District, Hanoi, VietnamPrediction of propagation time of corrosion is a key element in evaluating the service life of corroded reinforced concrete (RC) structures. Corroded steel products often expand in volume and thus generate tensile stress in the concrete cover. When this tensile stress exceeds the tensile strength of the concrete, cracking occurs. The tensile stresses in concrete due to corrosion are usually perpendicular to the longitudinal axis of the reinforcement. In the reinforced concrete beams, tensile stresses in concrete due to bending is perpendicular to the longitudinal direction of stirrups. In the reinforced concrete slabs, the tensile stresses in concrete due to bending is also perpendicular to the axis of longitudinal reinforcement subjected to bending in the other direction. In such cases, the tensile stresses in concrete due to corrosion of reinforcement has the same direction as the tensile stress caused by bending. When the load-induced stress in the concrete has the same direction as that of the corrosion-induced stress, cracks will likely appear more quickly and vice versa. The main objective of this paper is to build a predictive model of corrosion propagation time taking into account: (1) the effect of stresses due to load; (2) the change of corrosion current density. The model was implemented on Matlab software. The results show the influence of the load, and other parameters on the corrosion propagation stage, when considering the end of this corrosion propagation stage is cracking of concrete cover.https://journals.pan.pl/Content/123624/PDF/art33.pdfcrackedcorrosionloadreinforced concretepropagationstirrups |
| spellingShingle | Dao Van Dinh Tran Viet Hung Research corrosion propagation time of reinforced concrete structures considering load influence Archives of Civil Engineering cracked corrosion load reinforced concrete propagation stirrups |
| title | Research corrosion propagation time of reinforced concrete structures considering load influence |
| title_full | Research corrosion propagation time of reinforced concrete structures considering load influence |
| title_fullStr | Research corrosion propagation time of reinforced concrete structures considering load influence |
| title_full_unstemmed | Research corrosion propagation time of reinforced concrete structures considering load influence |
| title_short | Research corrosion propagation time of reinforced concrete structures considering load influence |
| title_sort | research corrosion propagation time of reinforced concrete structures considering load influence |
| topic | cracked corrosion load reinforced concrete propagation stirrups |
| url | https://journals.pan.pl/Content/123624/PDF/art33.pdf |
| work_keys_str_mv | AT daovandinh researchcorrosionpropagationtimeofreinforcedconcretestructuresconsideringloadinfluence AT tranviethung researchcorrosionpropagationtimeofreinforcedconcretestructuresconsideringloadinfluence |