Study on the Shear Behavior of Hybrid Fiber-Reinforced Concrete Beams

Fiber-reinforced concrete (FRC), increases the stability and integrity of the construction, contains fibrous material. Fiber reinforcement in concrete can enhance a number of technical characteristics of the basic materials, including fracture toughness, deflection under lateral pressure, and durability. Fiber-reinforced concrete (FRC) is a concrete that has been reinforced with a fibrous substance and it has higher structural stability. Hybrid fiber-reinforced concrete is the term used to describe the use of two or more fibers in the concrete (HFRC). Using fibers or other materials as reinforcement is not a new concept. Steel fiber-reinforced concrete has several uses, including floors, marine constructions, solid structure repair and retrofitting, etc. There are three different varieties of steel fibers: corrugated, hooked, and straight, with the hooked end having a higher flexural strength than the others. In this study, composite fibers made of steel and jute is employed in the concrete. Adding natural fibers to concrete is a sustainable way to enhance its mechanical properties and support ecologically friendly construction. This study aims to investigate the mechanical properties and sustainability of HFRC beams reinforced with composite fibers made of steel and jute. The experiment involved subjecting the beams to four-point loading and evaluating their tensile and shear properties. The results showed that the addition of hybrid fibers significantly increased the tensile strength of the concrete and improved its shear behavior. Moreover, load deflection analysis of the HFRC beams was compared to that of conventional beams using ABAQUS, and the results were validated. The study highlights the potential of HFRC as a sustainable and effective alternative to traditional-reinforced concrete in construction.