Nowadays, the deterioration of the roads is one of the biggest inconveniences in Bogotá. In recent years, studies have demonstrated an environmental problem that has to do with the asphalt materials that are discarded. One of the causes of the abrasion of the surface course is the increase in the number of equivalent axes, as pavements were designed for a certain number of vehicles, however, this number has now increased reducing the useful life of the material. In addition to climate change - which is the agent that most influences the deterioration of pavements - there is also a loss of biodiversity, a decrease in the thickness of the ozone layer, and an increase in CO2 emissions, which also contributes to environmental deterioration. For this reason, the different methods for asphalt recycling that are available worldwide and the optimal way to perform its rehabilitation are investigated, after analyzing the behavior, implementation, feasibility, and costs of all the methods.
In this way, it was concluded that in the case of Bogotá, the implementation of the RAP through the entities in charge of the road network - such as the Road Maintenance Unit and the Urban Development Institute - was carried out without a technical review, that is, by means of experimental works and with high percentages of this material, entailing for the surface course of the sections that were intervened with this method to show abrasion in a short time.
