Performance of Cracked Ultra-High-Performance Fiber-Reinforced Concrete Exposed to Dry-Wet Cycles of Chlorides
This paper presents an experimental study on the performance of cracked ultra-high-performance fiber-reinforced concrete (UHPC) exposed to dry-wet cycles of 3.5% NaCl solution under the temperature of 60°C. The results show that the wider the crack, the higher the corrosion degree of steel fibers em...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/4625972 |
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| author | Longlong Niu Shiping Zhang |
| author_facet | Longlong Niu Shiping Zhang |
| author_sort | Longlong Niu |
| collection | DOAJ |
| description | This paper presents an experimental study on the performance of cracked ultra-high-performance fiber-reinforced concrete (UHPC) exposed to dry-wet cycles of 3.5% NaCl solution under the temperature of 60°C. The results show that the wider the crack, the higher the corrosion degree of steel fibers embedded in UHPC, and the deeper the chloride ion diffusion on both sides of the crack. With the increase of dry-wet cycles, the flexural strength of precracked UHPC first decreases and then increases, and the lowest flexural strength was observed in 60 dry-wet cycles. Although self-healing is hard to cease the corrosion of steel fibers, it can relieve the corrosion of steel fibers and improve the flexural strength exposed to 100 dry-wet cycles. |
| format | Article |
| id | doaj-art-2e38908743984e1e820a4e66325e9876 |
| institution | Kabale University |
| issn | 1687-8442 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-2e38908743984e1e820a4e66325e98762025-02-03T05:43:35ZengWileyAdvances in Materials Science and Engineering1687-84422021-01-01202110.1155/2021/4625972Performance of Cracked Ultra-High-Performance Fiber-Reinforced Concrete Exposed to Dry-Wet Cycles of ChloridesLonglong Niu0Shiping Zhang1Department of Architecture Civil EngineeringDepartment of Architecture Civil EngineeringThis paper presents an experimental study on the performance of cracked ultra-high-performance fiber-reinforced concrete (UHPC) exposed to dry-wet cycles of 3.5% NaCl solution under the temperature of 60°C. The results show that the wider the crack, the higher the corrosion degree of steel fibers embedded in UHPC, and the deeper the chloride ion diffusion on both sides of the crack. With the increase of dry-wet cycles, the flexural strength of precracked UHPC first decreases and then increases, and the lowest flexural strength was observed in 60 dry-wet cycles. Although self-healing is hard to cease the corrosion of steel fibers, it can relieve the corrosion of steel fibers and improve the flexural strength exposed to 100 dry-wet cycles.http://dx.doi.org/10.1155/2021/4625972 |
| spellingShingle | Longlong Niu Shiping Zhang Performance of Cracked Ultra-High-Performance Fiber-Reinforced Concrete Exposed to Dry-Wet Cycles of Chlorides Advances in Materials Science and Engineering |
| title | Performance of Cracked Ultra-High-Performance Fiber-Reinforced Concrete Exposed to Dry-Wet Cycles of Chlorides |
| title_full | Performance of Cracked Ultra-High-Performance Fiber-Reinforced Concrete Exposed to Dry-Wet Cycles of Chlorides |
| title_fullStr | Performance of Cracked Ultra-High-Performance Fiber-Reinforced Concrete Exposed to Dry-Wet Cycles of Chlorides |
| title_full_unstemmed | Performance of Cracked Ultra-High-Performance Fiber-Reinforced Concrete Exposed to Dry-Wet Cycles of Chlorides |
| title_short | Performance of Cracked Ultra-High-Performance Fiber-Reinforced Concrete Exposed to Dry-Wet Cycles of Chlorides |
| title_sort | performance of cracked ultra high performance fiber reinforced concrete exposed to dry wet cycles of chlorides |
| url | http://dx.doi.org/10.1155/2021/4625972 |
| work_keys_str_mv | AT longlongniu performanceofcrackedultrahighperformancefiberreinforcedconcreteexposedtodrywetcyclesofchlorides AT shipingzhang performanceofcrackedultrahighperformancefiberreinforcedconcreteexposedtodrywetcyclesofchlorides |