Estudio de la Asfaltita y aplicaciones en mezclas asfálticas tibias y semitibias
A. E. Sanabria-Torres, Maria Camila Arenas Ariza, J.V. Acevedo-Pérez · Avances Investigación en Ingeniería · 2021
The use of natural asphalt represents an innovative alternative for the creation of asphalt mixtures; Currently, Colombian regulations present applications of this type of asphalt as both in base and in granular sub-bases, and in asphalt mixtures, but the application that has been given for the design of asphalt mixtures has not been able to exploit all the benefits of the material since it is often used in an inappropriate way. The purpose of this research article is to expose the main characteristics of natural asphalt and the possible alternatives that could be studied when including it in the manufacture of a warm (WMA) or half warm (HWMA) asphalt mix; It also includes the natural asphalt deposits found in the world and in Colombia. The environmental benefits of the implementation of this type of mixtures are exposed, stating that the use of these technologies helps to reduce greenhouse gas emissions and combustion gases. In addition, it contributes to the reduction of the depletion of finite resources due to the fact that this type of asphalt mixtures are manufactured and compacted at lower temperatures, as well as the consumption of manufactured asphalt, products of petroleum distillation is reduced.