Benefícios da fibra de polipropileno em estruturas de concreto

Abstract

The research was conducted in a housing development in the RMR, with the aim of using polypropylene fiber as a reinforcement solution for the concrete structure, represented by a radier slab. The study compared the economic and mechanical properties of this solution with traditional reinforced concrete. The work highlights that, despite its advantages, conventional concrete has limitations, such as low tensile strength, which requires the addition of steel to compensate for this deficiency. Compression and tensile strength tests, conducted at the EvoluçãoEngenharia and Tecomat laboratories, demonstrated that polypropylene fiber enhances concrete properties, such as impact resistance, toughness, and crack control. Moreover, it is more economical compared to steel. The comparative economic analysis revealed a significant reduction in material costs, especially due to the decreased use of steel. The results conclude that polypropylene fiber reinforced concrete (PFRC) is a viable alternative to reinforced concrete, offering benefits in terms of improved mechanical properties, cost reduction, and sustainability potential. The use of this technology contributes to more efficient and economical construction, with an emphasis on sustainability and reduced environmental impact. Therefore, PFRC emerges as a promising solution for the construction industry, offering an excellent cost-benefit ratio and an advancement in more ecological practices.