Corrosion and Strength Behaviors in Prestressed Tendon under Various Tensile Stress and Impressed Current Conditions
Corrosion occurs more rapidly under high tensile stress and this leads to several problems like degradation of serviceability and structural performance in PSC (prestressed concrete) structures. In this paper, impressed current method, so-called ICM, was applied to tendons under tensile loadings of...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/8575816 |
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| author | Bang-Yeon Lee K. T. Koh M. A. Ismail H. S. Ryu S. J. Kwon |
| author_facet | Bang-Yeon Lee K. T. Koh M. A. Ismail H. S. Ryu S. J. Kwon |
| author_sort | Bang-Yeon Lee |
| collection | DOAJ |
| description | Corrosion occurs more rapidly under high tensile stress and this leads to several problems like degradation of serviceability and structural performance in PSC (prestressed concrete) structures. In this paper, impressed current method, so-called ICM, was applied to tendons under tensile loadings of 0.0, 20.0, 40.0, and 60.0% of ultimate load. With induction of 20 volts for 24 hours to tendon under tensile stress, loading was induced to failure and the ultimate load was evaluated with varying corrosion behaviors. The changing mechanical behaviors in the same corrosive conditions were evaluated under different initial prestressing levels. With increasing initial prestressing load, corrosion occurred more rapidly and corrosion amount also increased linearly. The ultimate load accordingly decreased with increasing initial prestressing and corrosion amount. The relationships between prestressing levels and corrosion behaviors were quantitatively obtained through regression analysis. The measured current during applied voltage and the related corrosion amounts were also dealt with in this work. |
| format | Article |
| id | doaj-art-a9a85067a2f74f6ea815a7edc065df84 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-a9a85067a2f74f6ea815a7edc065df842025-02-03T01:10:09ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/85758168575816Corrosion and Strength Behaviors in Prestressed Tendon under Various Tensile Stress and Impressed Current ConditionsBang-Yeon Lee0K. T. Koh1M. A. Ismail2H. S. Ryu3S. J. Kwon4School of Architecture, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of KoreaStructural Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology, 283 Daehwa-dong, Goyangdae-ro, Ilsanseo-gu, Goyang-si, Gyeonggi-do 10233, Republic of KoreaDepartment of Civil and Construction Engineering, Faculty of Engineering and Science, Curtin University Sarawak, CDT 250, 98009 Miri, Sarawak, MalaysiaHanyang Experiment and Consulting Co., 1271 Sa 3-dong, Sangrok-gu, Ansan 15588, Republic of KoreaDepartment of Civil and Environmental Engineering, Hannam University, Daejeon 34430, Republic of KoreaCorrosion occurs more rapidly under high tensile stress and this leads to several problems like degradation of serviceability and structural performance in PSC (prestressed concrete) structures. In this paper, impressed current method, so-called ICM, was applied to tendons under tensile loadings of 0.0, 20.0, 40.0, and 60.0% of ultimate load. With induction of 20 volts for 24 hours to tendon under tensile stress, loading was induced to failure and the ultimate load was evaluated with varying corrosion behaviors. The changing mechanical behaviors in the same corrosive conditions were evaluated under different initial prestressing levels. With increasing initial prestressing load, corrosion occurred more rapidly and corrosion amount also increased linearly. The ultimate load accordingly decreased with increasing initial prestressing and corrosion amount. The relationships between prestressing levels and corrosion behaviors were quantitatively obtained through regression analysis. The measured current during applied voltage and the related corrosion amounts were also dealt with in this work.http://dx.doi.org/10.1155/2017/8575816 |
| spellingShingle | Bang-Yeon Lee K. T. Koh M. A. Ismail H. S. Ryu S. J. Kwon Corrosion and Strength Behaviors in Prestressed Tendon under Various Tensile Stress and Impressed Current Conditions Advances in Materials Science and Engineering |
| title | Corrosion and Strength Behaviors in Prestressed Tendon under Various Tensile Stress and Impressed Current Conditions |
| title_full | Corrosion and Strength Behaviors in Prestressed Tendon under Various Tensile Stress and Impressed Current Conditions |
| title_fullStr | Corrosion and Strength Behaviors in Prestressed Tendon under Various Tensile Stress and Impressed Current Conditions |
| title_full_unstemmed | Corrosion and Strength Behaviors in Prestressed Tendon under Various Tensile Stress and Impressed Current Conditions |
| title_short | Corrosion and Strength Behaviors in Prestressed Tendon under Various Tensile Stress and Impressed Current Conditions |
| title_sort | corrosion and strength behaviors in prestressed tendon under various tensile stress and impressed current conditions |
| url | http://dx.doi.org/10.1155/2017/8575816 |
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