Comportamiento mecánico de hormigones reforzados con fibras de carrizo y paja

This research focuses on evaluating the potential of reed and paramo straw fibers as natural reinforcements in concrete mixtures to assess their impact on the mechanical properties of the concrete. The study begins with the mechanical characterization of reed and paramo straw fibers, determining parameters such as tensile strength, length, and diameter. These fibers are then treated with paraffin, and different fiber percentages (2%, 3%, and 4%) and different lengths (2 cm, 5 cm, and 8 cm) are incorporated into conventional concrete mixtures. With the best results, a combination of these fibers is made, and their compressive strength is determined after 7 days. The best strength values are then evaluated to prepare new specimens for tensile, flexural, and compression testing, but this time at 7, 14, and 28 days. It is also verified that none of the proposed dosages exceeds the reference values . However, it is shown that the dosages with straw fibers exhibit slightly better compression behavior than those with reed fiber inclusion. In the case of the tensile and flexural strength of the concrete, the reed added at 2% presents the best results, perhaps associated with the better tensile properties presented by said fiber, even reaching values close to 70% of the standard sample. The weight of the concrete mass is also noteworthy, as a decrease is observed with increasing fiber content; however, in none of the analyzed combinations, it decreases by more than 5% compared to the reference sample.

• 1. Verfasser: Yugcha Toapanta, Cristian Paul (author)
• Format: bachelorThesis
• Sprache: spa
• Veröffentlicht: 2025
• Schlagworte: Hormigón patrón; Fibras de paja; Fibras de carrizo; Tracción
• Online Zugang: http://dspace.unach.edu.ec/handle/51000/15621