Análisis del diseño de una mezcla asfáltica en caliente adicionada con grano caucho reciclado (GCR) y RAP (reclaimed asphalt pavement)

Abstract

Hot mix asphalt has become a preferred option for road paving due to its durability and wear resistance. However, as environmental awareness increases and efforts seek to reduce the consumption of natural resources, new alternatives emerge that promote sustainability and the reuse of materials. The research focuses on the design of a hot mix asphalt using rubber grain (recycled rubber from out-of-use tires) and RAP (Recycled Asphalt Pavement). The main objective is to evaluate the design of a hot asphalt mix made with asphalt added with Rubber Grain (GCR) and RAP (Reclaimed Asphalt Pavement) with different granulometry by the MARSHALL method.

The methodology used focuses on a design for hot mix asphalt with rubber grain and RAP under an experimental investigation, allowing laboratory tests and analyzes to evaluate the properties and performance of the mixture. (Garnica P; Delgado H, et al, 2004). It is an applied research of a quantitative nature.

The results show that the modified asphalt mixture meets established criteria in several key aspects and, in many cases, exceeds those standards, indicating a high-quality product with significant improvements in strength, durability, and fatigue and work resistance. In general, we see that the modified asphalt mixture meets the parameters of the INVE-748 standard above.