Análisis comparativo de la mezcla asfáltica modificada con la adición de polímeros termoplásticos, caucho de llanta reciclado y pavimento asfáltico tradicional para el mantenimiento vial en fallas piel de cocodrilo

Abstract

This research work was carried out with the objective of analyzing and comparing the mechanical properties of modified asphalt mixes with the addition of: thermoplastic polymers and recycled tire rubber compared to traditional asphalt. Asphalt briquettes were made: modified and conventional using the Marshall Method, then the behavior of an asphalt mixture was analyzed by modifying it with the addition of the following thermoplastic polymer percentages of 5, 10, 15 and 20 percent by weight; and rubber, 2, 3, 4 and 5 percent were used, where 36 samples were manufactured, of which 12 correspond to conventional asphalt mixes and 24 to modified mixes; By using these materials, the optimum percentage of recycled polymers that can be added to asphalt mixtures was achieved, largely fulfilling and improving the design requirements established by the standards so that they can be used in the paving process. It was determined that the hot mix asphalt modified with tire rubber did improve some of the mechanical properties, since it presented resistant and durable characteristics, obtaining an optimal percentage of addition of 5.7 percent of rubber and an optimal percentage of addition of 6.6 percent thermoplastic polymer.