A Study on the Bond Behavior of Corroded Reinforced Concrete Containing Recycled Aggregates
This paper investigated bond-slip characteristics of chloride-induced corroded reinforced concrete incorporating different levels of recycled concrete aggregates (RCA). Pullout tests were adopted to evaluate the bonding and debonding behaviors of the embedded rebar experiencing different corrosion l...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/249301 |
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| author | Haifeng Yang Zhiheng Deng Yinghong Qin Liangsheng Lv |
| author_facet | Haifeng Yang Zhiheng Deng Yinghong Qin Liangsheng Lv |
| author_sort | Haifeng Yang |
| collection | DOAJ |
| description | This paper investigated bond-slip characteristics of chloride-induced corroded reinforced concrete incorporating different levels of recycled concrete aggregates (RCA). Pullout tests were adopted to evaluate the bonding and debonding behaviors of the embedded rebar experiencing different corrosion levels. Both high- and low-strength concrete were considered. Bond-slip curves were recorded to determine the influences of rebar corrosion levels and RCA replacements on the bond strength and debonding energy of the specimens. Test results indicate that increasing rebar corrosion level gradually weakens the antisliding ability of reinforced recycled aggregate concrete (RAC) except for a small level corrosion and the degradation rate of ultimate bond strength increases with a decrease of compressive strength at 0.5% rebar corrosion. The results also demonstrate that the ultimate bond strength of reinforced RAC slightly decreases with an increase of RCA replacement. However, the relative bond strength between uncorroded rebar and RAC is little affected by RCA content, while it decreases with an increase of RCA replacement in high-strength specimens after rebar corrosion. The debonding energy between deformed rebar and RAC is found decreasing with the increment of the rebar corrosion level and increasing with an increase of RAC content. |
| format | Article |
| id | doaj-art-6f065a2f87c84ff9bdf55cbacd5e4e08 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-6f065a2f87c84ff9bdf55cbacd5e4e082025-08-20T03:34:05ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/249301249301A Study on the Bond Behavior of Corroded Reinforced Concrete Containing Recycled AggregatesHaifeng Yang0Zhiheng Deng1Yinghong Qin2Liangsheng Lv3College of Civil Engineering and Architecture, Guangxi University, 100 University Road, Nanning, Guangxi 530004, ChinaCollege of Civil Engineering and Architecture, Guangxi University, 100 University Road, Nanning, Guangxi 530004, ChinaCollege of Civil Engineering and Architecture, Guangxi University, 100 University Road, Nanning, Guangxi 530004, ChinaCollege of Civil Engineering and Architecture, Guangxi University, 100 University Road, Nanning, Guangxi 530004, ChinaThis paper investigated bond-slip characteristics of chloride-induced corroded reinforced concrete incorporating different levels of recycled concrete aggregates (RCA). Pullout tests were adopted to evaluate the bonding and debonding behaviors of the embedded rebar experiencing different corrosion levels. Both high- and low-strength concrete were considered. Bond-slip curves were recorded to determine the influences of rebar corrosion levels and RCA replacements on the bond strength and debonding energy of the specimens. Test results indicate that increasing rebar corrosion level gradually weakens the antisliding ability of reinforced recycled aggregate concrete (RAC) except for a small level corrosion and the degradation rate of ultimate bond strength increases with a decrease of compressive strength at 0.5% rebar corrosion. The results also demonstrate that the ultimate bond strength of reinforced RAC slightly decreases with an increase of RCA replacement. However, the relative bond strength between uncorroded rebar and RAC is little affected by RCA content, while it decreases with an increase of RCA replacement in high-strength specimens after rebar corrosion. The debonding energy between deformed rebar and RAC is found decreasing with the increment of the rebar corrosion level and increasing with an increase of RAC content.http://dx.doi.org/10.1155/2015/249301 |
| spellingShingle | Haifeng Yang Zhiheng Deng Yinghong Qin Liangsheng Lv A Study on the Bond Behavior of Corroded Reinforced Concrete Containing Recycled Aggregates Advances in Materials Science and Engineering |
| title | A Study on the Bond Behavior of Corroded Reinforced Concrete Containing Recycled Aggregates |
| title_full | A Study on the Bond Behavior of Corroded Reinforced Concrete Containing Recycled Aggregates |
| title_fullStr | A Study on the Bond Behavior of Corroded Reinforced Concrete Containing Recycled Aggregates |
| title_full_unstemmed | A Study on the Bond Behavior of Corroded Reinforced Concrete Containing Recycled Aggregates |
| title_short | A Study on the Bond Behavior of Corroded Reinforced Concrete Containing Recycled Aggregates |
| title_sort | study on the bond behavior of corroded reinforced concrete containing recycled aggregates |
| url | http://dx.doi.org/10.1155/2015/249301 |
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