Evaluación del comportamiento de las propiedades mecánicas del asfalto utilizando fibra de caña de azúcar con asfalto reciclado

Abstract

The growth of road infrastructure in Ecuador in recent years has, over time, shown evident deterioration, which has driven the search for reliable and sustainable alternatives to improve the performance of asphalt pavement. Based on this context, and seeking to make use of waste materials resulting from paved roads and agroindustrial industries, an alternative is presented that takes advantage of these residual materials while simultaneously reducing environmental impact. In this research, the study was carried out in three stages, the first being the selection and sourcing of the materials to be used. In the second phase, the materials and aggregates were subjected to various characterization tests; finally, the Rice test and Marshall method were applied, through which flow properties, stability, and asphalt-filled voids are determined. Pretreated sugarcane fibers were added for optimal application in different proportions, starting from traditional asphalt mixtures with AC-20 asphalt proportions at percentages of 5.5%, 6.0%, and 6.5%. Likewise, using the same proportions of AC-20 asphalt and adding Reclaimed Asphalt Pavement (RAP) and sugarcane fiber, modified asphalt mixtures were produced at 0.2% fiber and 10% RAP, 0.3% fiber and 20% RAP, and 0.4% fiber and 30% RAP. Finally, in the third phase, these were analyzed through a comparison of the results obtained from the traditional asphalt mixtures against the modified asphalt mixtures