Flexural Behavior of Rubber-Filled Reinforced Concrete Beams Strengthening with CFRP Sheets

Although there are many advantages to using rubber produce reinforced concrete substrates, still few applications for rubberized substrates like beams, where the mechanical properties of rubber-infused concrete, such as flexural strength, begin decline. On other hand, strengthening constitutes a sizeable portion structural uses externally carbon fiber polymer (CFRP) sheets when used strengthen beams. For this study's adhered were substitute loss strength. The beams split into two groups, each consisting three first group's mixture was included filler (5) % cement weight in form waste tire with size not more than (0.075) mm. Any group always had beam without any external reinforcement, second one layer, and third layers sheet. results indicate that load at crack increases be equal un-rubberized is strengthened layer sheets, it by (20%) sheets. When or layers, failure rises 23.58 42.75 percent, respectively. deflection 88.11 120.24 while falls 2.97 6.01 (load-deflection) curve, decreases symmetrical loads.