Segregation within structural elements such as beams presents a prevalent issue, negatively affecting their strength and durability and thus compromising the overall integrity of the structure. To counter such weaknesses, especially after concrete surpasses its no-back point, various rehabilitation methods are available. These techniques have garnered significant attention from researchers due to their simplicity, cost-effectiveness, and ability to avoid extensive rebuilding or redesigning of structures. This study aimed to evaluate the effectiveness of grouting material in rehabilitating segregated sections in reinforced concrete beam specimens. For this purpose, a control beam and three segregated beams treated with grouting material were prepared. Results indicated that despite rehabilitation efforts, the grouting material failed to fully restore the segregated beams to their original condition. The ultimate strength of the MB-G-40, EB-G-40, and MB-G-100 specimens decreased by 59.27%, 66.85%, and 67.4%, respectively, even after rehabilitation.