Volumetrics properties of hot mix asphalt with “MAPIA” natural asphalt and recycled rubber crumb as mineral filler Propiedades volumétricas de mezclas asfálticas en caliente con asfalto natural “MAPIA” y grano de caucho reciclado como llenante mineral

Abstract

Road infrastructure is one of the most important entities in the economic development of a region, since it allows the transfer of goods and services from one territory to another, however, this sector generates great effects on the environment, represented in emissions, energy consumption and pollution. For this reason, currently some sustainable alternatives have been implemented that allow the construction / maintenance of roads in an environmentally friendly way, one of them is the use of Natural Asphalt "MAPIA" for road maintenance, however as the composite material with little asphalt content and quite granular, its applications have only been in the area of ​​low-traffic roads. In this order of ideas, the present study consisted of adding “MAPIA” to an MDC-19 together with “GCR” (Recycled rubber grain) in order to evaluate the volumetric properties based on Colombian regulations. Two percentages of Mapia 4 and 6% were selected and mixture design was carried out by the Marshall method, finally favorable values ​​were obtained in terms of stability and flow, which could mean its favorable use in roads with high traffic.