Concreto têxtil e concreto armado reforçado com fibras: revisão bibliográfica e exemplo numérico

Abstract

Fiber reinforced concrete combines the properties of high-strength fibers with conventional concrete, enhancing its tensile strength, ductility, and crack resistance. This approach has been extensively employed in various structural applications, enriching the durability and load-bearing capacity of constructions. Another innovation is textile concrete, which utilizes a mesh of textile fibers—often glass or carbon—incorporated into the concrete matrix during molding, imparting robust mechanical properties and design flexibility. The purpose of this study is to provide an overview of the use of these techniques in structure construction, addressing their history, structural characteristics, fiber reinforcement techniques, advantages, and challenges.The methodology used involved a literature review of the presented subject, and, in the end, a numerical example of dimensioning was presented, exclusively involving reinforcement for flexural reinforcement, using a program created in Smath Solver©. The code developed for this program is found in Appendix A - Program Code for Calculation. The obtained results demonstrate that reinforcing structures with fibers, whether through textile concrete or fiber-reinforced concrete, play a significant role in civil engineering. By employing composite materials, it is possible to enhance tensile strength and load-bearing capacity, extending the lifespan and efficiency of existing constructions. As civil engineering progresses, the use of textile concrete and fiber-reinforced concrete will play a crucial role in improving structures for greater strength and durability.