Structural design of flexible pavement with rubber addition in the city of Trujillo

Resumen

The research aimed to determine the influence of recycled rubber on the structural design of the flexible pavement of Av. América Sur during the year 2025, contributing to safer and more sustainable urban mobility (SDG 11). The study was basic in type, with a quantitative approach and a non-experimental design. The population was composed of the entire avenue, and the sample corresponded to a 400-meter section selected for convenience. The observation technique was applied using a guide based on the PCI and Marshall methods, which made it possible to evaluate the pavement condition and the performance of the mixtures with recycled rubber. The results showed that the pavement was in very poor condition, with a PCI of 19.33 and severe failures such as alligator cracking. Using the AASHTO 93 method, a structural thickness of 61 cm was determined. In the laboratory, the mixtures with rubber exhibited better mechanical performance, with Mix 3 standing out with 36.37 kg/cm2 of strength and 0.65% absorption, confirming the positive influence of rubber. In conclusion, the incorporation of recycled rubber proved to be viable and is projected as a sustainable alternative to improve the durability and performance of urban roads.