Load-Deflection for Epoxy Repaired High Strength Reinforced Concrete Beams
This paper presents an experimental investigation to predict the load-deformation behavior of High Strength reinforced concrete beams that failed in flexure and were repaired by epoxy injection. Four simply supported reinforced concrete beams with dimensions of (120*230*2550mm) were investigated af...
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| Format: | Article |
| Language: | Arabic |
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Mustansiriyah University/College of Engineering
2008-03-01
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| Series: | Journal of Engineering and Sustainable Development |
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| Online Access: | https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1634 |
| Summary: | This paper presents an experimental investigation to predict the load-deformation behavior of High Strength reinforced concrete beams that failed in flexure and were repaired by epoxy injection. Four simply supported reinforced concrete beams with dimensions of (120*230*2550mm) were investigated after repairing with the epoxy resin injection method. Beams B1 and B2 have a tensile steel ratio of 0.0099, while Beams B3 and B4 have a tensile steel ratio of 0.0177. Deflections were measured at first third, second third from the support, and at mid-span for all beams by using dial gauges. The behavior achieved for resin-injected high-strength reinforced concrete beams was similar to that of the original beams. However, the cracks do not re-open after retesting. Instead, new nearby cracks are developed and the repaired beams showed a greater ductility than the original beams.
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| ISSN: | 2520-0917 2520-0925 |