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Mechanical properties of aramid fiber-reinforced composites andperformance on repairing concrete beams damaged by corrosion |
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| รหัสดีโอไอ | |
| Creator | 1. Pitcha Jongvivatsakul 2. Chung Nguyen Thi 3. Ganchai Tanapornraweekit 4. Linh Van Hong Bui |
| Title | Mechanical properties of aramid fiber-reinforced composites andperformance on repairing concrete beams damaged by corrosion |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2020 |
| Journal Title | Songklanakarin Journal of Science and Technology |
| Journal Vol. | 42 |
| Journal No. | 3 |
| Page no. | 637-644 |
| Keyword | aramid fiber, fiber geometry, corrosion, repairing, flexural capacity |
| URL Website | https://rdo.psu.ac.th/sjstweb/index.php |
| ISSN | 0125-3395 |
| Abstract | This study presents an experimental investigation of the mechanical responses of concrete members with partiallyaramid fiber-reinforced concrete (AFRC). The effect of fiber geometry on mechanical properties of AFRC was investigated toprovide a reasonable dimension of the aramid fibers for reinforcing the concrete beams. Additionally, an experiment on theflexural behavior of corroded reinforced concrete (RC) beams repaired by aramid fiber-reinforced mortar or high performancemortar was carried out. The test results indicated that 40 mm is the best fiber length to maximize the tensile strength of AFRC.Furthermore, the twisted fibers can resist a higher load capacity in the post-peak regions than single fibers. Both non-repaired andrepaired RC beams were tested under a four-point bending load. The experimental results demonstrated that the load capacity andthe ductility of a repaired corroded RC beam using aramid fiber-reinforced mortar were restored almost to the same capacity as anon-corroded RC member. The width of cracks in the corroded beam repaired with aramid fibers decreased significantly. |
