Study on the Bonding Behavior of Hybrid Fiber-Reinforced Concrete Using Ramie and Glass Fibers

This study compares the bonding behavior of hybrid fiber-reinforced concrete using glass and ramie fibers to that with conventional concrete. Cementitious composites were applied to both the control concrete and the hybrid fiber-reinforced concrete in this investigation (HFRC). Following that, a comparison of the two forms of concrete—controlled concrete and fiber-reinforced concrete—wase performed. Ramie is a flowering plant in the Urticaceae family with the scientific name Boehmeria nivea. The primary focus of this research work is on composite materials comprised of ramie fibers and glass fibers, which have limited applicability in the building industry. This blend of ramie and glass fibers exhibits synergistic responses from each fiber. In this investigation, six different fiber percentages were used to make six distinct mixes (0.25% glass fiber alone, 0.5% ramie fiber + 0.25% glass fiber, 0.4% ramie fiber + 0.25% glass fiber, 0.3% ramie fiber + 0.25% glass fiber, 0.2% ramie fiber + 0.25% glass fiber, and 0.1% ramie fiber + 0.25% glass fiber). We took ramie fiber that was 10 mm long and glass fiber that were 6 to 8 mm long. The concrete grade M40 was used. Super plasticizer is added by weight of cement to improve the workability of the concrete. When the fiber content of concrete increases to a certain extent, its workability decreases, and its mechanical characteristics improve. Since hybrid fibers were added in concrete, bond stress was carried out with different diameters of bars, then compared that with CC. The OC produces better results when compared to CC.