Synergistic fiber hybridization: unlocking superior mechanical performance in cementitious composites

This study investigates the effects of various fibers and their combinations on the mechanical properties of fiber-reinforced cementitious composites (FRCC). Sixteen distinct mix designs were prepared, each incorporating different types and proportions of fibers, Polyvinyl Alcohol (PVA), Polypropylene (PP), Basalt, and Banana fibers, while maintaining a consistent cement-to-sand ratio of 25% to 75%. The objective was to evaluate how these fibers influence the compressive, flexural, and tensile strengths of the FRCC. The results revealed significant variations in mechanical properties based on fiber type and content. Mixes containing PVA and Basalt fibers demonstrated superior compressive strength, flexural strength, and tensile strength compared to those with other fibers. Notably, hybrid fiber combinations, such as PVA and Basalt or PVA and PP, showed enhanced mechanical performance, indicating the synergistic benefits of combining different fiber types. In contrast, Banana fibers alone were less effective in improving mechanical properties but contributed positively when combined with synthetic fibers. The study highlights the potential of fiber hybridization in optimizing the performance of cementitious composites. The strategic use of PVA and Basalt fibers, both individually and in combination, provides a promising approach for developing high-strength for diverse construction applications. These findings offer valuable insights for future research and the development of advanced composite materials with tailored mechanical properties.