Bond Behavior of Cleaned Corroded Lap Spliced Beams Repaired with Carbon Fiber Reinforced Polymer Sheets and Partial Depth Repairs
| Autor: | Rayed Alyousef, T. H. Topper, Hisham Alabduljabbar, Hossein Mohammadhosseini |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
carbon fiber-reinforced polymer Bar (music) General Chemical Engineering 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Slip (materials science) bond stirrups 0201 civil engineering Corrosion Inorganic Chemistry Splice joint 021105 building & construction lcsh:QD901-999 lap splice beam General Materials Science Composite material Carbon fiber reinforced polymer corrosion Bond strength Fibre-reinforced plastic Condensed Matter Physics partial depth repair concrete lcsh:Crystallography Beam (structure) |
| Zdroj: | Crystals, Vol 10, Iss 1014, p 1014 (2020) Crystals Volume 10 Issue 11 |
| ISSN: | 2073-4352 |
| DOI: | 10.3390/cryst10111014 |
| Popis: | The present research investigated the bond behavior of a cleaned corroded reinforcing bar repaired with a partial depth concrete repair and a partial depth concrete repair followed by the application of fiber-reinforced polymer (FRP) sheets. Twelve lap splice beams were cast and tested under static loading. The test variables considered were a partial depth repair with prepackaged self-consolidating concrete (SCC) for six lap splice beams and additional confinement with carbon fiber reinforced polymer (CFRP) sheets for another six beams. The test results for the repaired lap splice beams were compared with those for a monolithic lap splice beam. This research found that the average bond strength increased as the bar mass loss increased for all bonded lengths. The lap splice beams repaired with partial depth were able to repair concrete with similar properties to those of the monolithic concrete. However, they had higher concrete strength than the monolithic beams which showed a higher average bond strength than the monolithic lap splice beams. The beams confined with FRP sheets showed a rise in the bond strength and the equivalent slip by 34&ndash 49%, and 56&ndash 260% as compared to the unconfined beams, respectively. |
| Databáze: | OpenAIRE |
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