Bond Behavior of Recycled Fiber Recycled Concrete with Reinforcement after Freeze-Thaw Cycles
Freeze-thaw (F-T) damage is the major factor destroying the bond behavior of reinforced concrete in the cold areas of China. The bond behavior between recycled fiber recycled concrete (RFRC) and reinforcement after F-T cycles was investigated in this paper. The pull-out tests were undertaken with th...
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MDPI AG
2021-12-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/11/12/1506 |
| _version_ | 1797505681385848832 |
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| author | Yu Liu Jinghai Zhou Di Wu Tianbei Kang Aixia Liu |
| author_facet | Yu Liu Jinghai Zhou Di Wu Tianbei Kang Aixia Liu |
| author_sort | Yu Liu |
| collection | DOAJ |
| description | Freeze-thaw (F-T) damage is the major factor destroying the bond behavior of reinforced concrete in the cold areas of China. The bond behavior between recycled fiber recycled concrete (RFRC) and reinforcement after F-T cycles was investigated in this paper. The pull-out tests were undertaken with the replacement rate (0, 50%, and 100%) of recycled aggregates (RA) and volume content (0, 0.12%, and 0.24%) of recycled fibers (RFs) as test variables. The results demonstrate that the F-T cycles will reduce the bond strength between RFRC and reinforcement. Bond strength decreases by 69.41% after 150 cycles. Moreover, RF can improve the bond strength between RFRC and reinforcing steel. Bonding strength increases by 11.35% with the addition of 0.12% RF. A simplified two-phase bond-slip model between RFRC and reinforced steel after F-T cycles was eventually established, and it correlated well with the experimental results. This research presents a theoretical basis for the application of RFRC in building structures in cold areas. |
| first_indexed | 2024-03-10T04:21:55Z |
| format | Article |
| id | doaj.art-6b8fb629f8d847cca204e2e7e9fde8ad |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T04:21:55Z |
| publishDate | 2021-12-01 |
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| series | Crystals |
| spelling | doaj.art-6b8fb629f8d847cca204e2e7e9fde8ad2023-11-23T07:48:39ZengMDPI AGCrystals2073-43522021-12-011112150610.3390/cryst11121506Bond Behavior of Recycled Fiber Recycled Concrete with Reinforcement after Freeze-Thaw CyclesYu Liu0Jinghai Zhou1Di Wu2Tianbei Kang3Aixia Liu4School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, ChinaSchool of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, ChinaSchool of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, ChinaSchool of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, ChinaDepartment of Civil Engineering, Shenyang Urban Construction University, Shenyang 110168, ChinaFreeze-thaw (F-T) damage is the major factor destroying the bond behavior of reinforced concrete in the cold areas of China. The bond behavior between recycled fiber recycled concrete (RFRC) and reinforcement after F-T cycles was investigated in this paper. The pull-out tests were undertaken with the replacement rate (0, 50%, and 100%) of recycled aggregates (RA) and volume content (0, 0.12%, and 0.24%) of recycled fibers (RFs) as test variables. The results demonstrate that the F-T cycles will reduce the bond strength between RFRC and reinforcement. Bond strength decreases by 69.41% after 150 cycles. Moreover, RF can improve the bond strength between RFRC and reinforcing steel. Bonding strength increases by 11.35% with the addition of 0.12% RF. A simplified two-phase bond-slip model between RFRC and reinforced steel after F-T cycles was eventually established, and it correlated well with the experimental results. This research presents a theoretical basis for the application of RFRC in building structures in cold areas.https://www.mdpi.com/2073-4352/11/12/1506bond behaviorfreeze-thaw cyclesrecycled fiber recycled concretebond strengthbond-slip |
| spellingShingle | Yu Liu Jinghai Zhou Di Wu Tianbei Kang Aixia Liu Bond Behavior of Recycled Fiber Recycled Concrete with Reinforcement after Freeze-Thaw Cycles Crystals bond behavior freeze-thaw cycles recycled fiber recycled concrete bond strength bond-slip |
| title | Bond Behavior of Recycled Fiber Recycled Concrete with Reinforcement after Freeze-Thaw Cycles |
| title_full | Bond Behavior of Recycled Fiber Recycled Concrete with Reinforcement after Freeze-Thaw Cycles |
| title_fullStr | Bond Behavior of Recycled Fiber Recycled Concrete with Reinforcement after Freeze-Thaw Cycles |
| title_full_unstemmed | Bond Behavior of Recycled Fiber Recycled Concrete with Reinforcement after Freeze-Thaw Cycles |
| title_short | Bond Behavior of Recycled Fiber Recycled Concrete with Reinforcement after Freeze-Thaw Cycles |
| title_sort | bond behavior of recycled fiber recycled concrete with reinforcement after freeze thaw cycles |
| topic | bond behavior freeze-thaw cycles recycled fiber recycled concrete bond strength bond-slip |
| url | https://www.mdpi.com/2073-4352/11/12/1506 |
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