Abstract:
This thesis details an experimental study that investigates the structural behavior of recycled fiber-reinforced concrete (FRC) beams. As a sustainable and renewable resource, fiber has garnered significant attention as a potential alternative to conventional steel reinforcement in structural elements. The research aims to evaluate the flexural performance and load-carrying capacity of FRC beams through a series of laboratory tests. The experimental program involves the fabrication and testing of multiple beam specimens with varying fiber reinforcement configurations, including different fibertypes, lengths, and orientations. Key parameters investigated include ultimate strength, deflection characteristics, crack propagation, and failure modes. Test results are compared with control beams reinforced with conventional steel bars to assess the feasibility and effectiveness of fiber reinforcement. Notably, using fiber in the reinforcement resulted in a crushing moment near the reinforced section. Furthermore, an analysis of concrete performance has been carried out using ETABS software. Cotton bars material property 2175 psi. Weight density 2-12 mm 70 lb/ft3, 3- 12 mm 115 lb/ft3. Polyester bars weight density 2-12 mm 80 lb/ft3, 3-12 mm 120 lb/ft3. Nylon bars weight density 2-12 mm 80 lb/ft3, 3-12 mm 120 lb/ft3. Mechanical properties, Modulus of elasticity (E):1115.31 lb/ft3, Minimum yield strength (FY) 42 lb/ft3, Minimum tensile strength (Fu) 43 lb/ft3.The findings from this study provide valuable insights into the potential utilization of fiber as an eco-friendly reinforcement material in civil engineering structures. The outcomes contribute to sustainable development by promoting the use of renewable resources in the construction industry, helping engineers and architects design safe and efficient structures that meet project requirements.
