Experimental investigation of the behavior of fiber reinforced concretes

Concrete is a brittle material with low tensile strength and tensile deformation parameters. Due to these weak characteristics of concrete, there is a need for improvement. In this regard, to enhance the weak aspects of concrete, various high-performance fibers made from different materials are added to concrete. By incorporating these fibers, the aim is to improve the mecanical and physical properties of concrete that are otherwise weak. In this study, the fiber ratios used in the concrete mixtures were based on those found in literature studies. By keeping the cement amounts constant, the effects of concrete samples with fibers obtained from waste fibers used in proportions of 0.5%, 1%, 1.5%, and 2% on the mechanical and physical properties of the concrete were investigated. In this research, ultrasonic measurement tests, water absorption tests, compressive strength tests, Sem analysis tests and thermal conductivity coefficient tests were conducted. Standard cube specimens not only did not adversely affect the mechanical properties of concrete but also positively contributed to some properties. Keywords: Concrete, Fibers, Waste fibers, Fiber-reinforced concrete