Investigation on Reinforced Concrete Beams with High-Strength FRP Composite
J. Environ. Nanotechnol., Volume 13, No 2 (2024) pp. 208-213
Abstract
This study examines an advanced material called High Strength Fiber Reinforced Polymer Composite (HSFRPC). The flexural characteristics of RC beams with dimensions of 2000 × 100 × 150 mm, strengthened with a HSFRPC overlay were investigated. The control RC beam was tested under four-point bending until failure. Two test RC beams were subjected to a preload of 70% of their ultimate load, while the third one was subjected to a preload of 65% of the ultimate load of the control beam. The preloaded RC beams were reinforced by applying a HSFRPC overlay to the lower surface. The overlay was applied across the whole width of one of 70% preloaded RC beams. The overlay was applied only in the area for the other 70% preloaded and the 65% preloaded RC beam, where the bending moment is constant. Strengthened beams underwent testing using a four point bending load. During the testing process, many factors like load, deflection, cracks and failure patterns were closely monitored. The experimental investigation revealed that beams with HSFRPC overlay showed enhanced load carrying capacity and ductility compared to conventional RC beams.
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Reference
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