Published Paper Details:

This study investigates how Basalt Fiber Reinforced Self-Compacting Concrete (BFRSCC) performs in exterior beam-column joints subjected to positive quasi-static loading. The research focuses on understanding the behavior of basalt fibers when combined with M30 grade Self-Compacting Rubberized Concrete (SCRC) and 12mm chopped Basalt fiber. The aim is to provide valuable insights for the design and construction industry on the use of BFRSCC in reinforced concrete structures, following the principles of strong column weak beam theory for ensuring structural integrity. Experimental findings consistently show that the initial crack occurs near the bottom of the beam close to the joint and progresses upward during loading cycles, resulting in flexural cracks and beam hinging at the joint interface. Shear failure is identified as the primary mechanism leading to failure. By incorporating smaller proportions of crumb rubber and basalt fiber, the ductility of the specimens is improved in terms of displacement and stiffness. Crumb rubber inclusion enhances crack load and ultimate deflection, while basalt fiber reinforcement enhances crack load, ultimate load, and ultimate deflection. However, careful selection of the fiber content is crucial to balance the load-carrying capacity and stiffness. Challenges in meeting flowability requirements limit the exploration of higher fiber percentages, calling for further research. The study evaluates ductility and reveals significant enhancements with crumb rubber and basalt fiber. The findings contribute to construction practices and provide guidance for engineers, researchers, and practitioners involved in the construction of resilient and durable moment-resisting frame structures. Future research can explore alternative mix designs and examine the behavior of BFRSCC under different loading conditions to expand its practical applications.