Publicación:

Mezclas asfálticas no convencionales para procesos de pavimentación en frio y caliente

Resumen

The use of asphalt modified with natural and synthetic fiber residues in hot and cold paving processes has been increasing in recent decades. Asphalt emulsions have simplified the asphalt process as they are applied cold, allowing considerable energy savings in asphalt preparation and in the on-site paving process. In addition, the application of hot asphalt is limited by adverse weather conditions such as rain, high humidity, among others. However, asphalt emulsions do not present these problems since, being in an aqueous medium, water does not intervene in the construction process in which they are applied. This paper presents a literature review based on a documentary research on hot and cold paving processes in which unconventional asphalt mixtures are applied. The contents of the qualitative systematic analysis were compiled in chapters that deal with generalities about the production of asphalt, modifying agents, hot and cold asphalt emulsions, unconventional asphalt mixtures, paving processes and established standards for the use of asphalt emulsions. As a differentiating element, information on the addition of unconventional materials in asphalt emulsions and their application in sustainable paving processes was incorporated into this work. Finally, the compilation obtained is synthesized in summary tables, in order to provide information that allows the reader to know the advances that have been generated in recent years from the limitations announced in the current paving processes.