Pathological manifestations in asphalt paving: case study at TO-050, on the road ring stretch in Porto Nacional/TO

Abstract

Highways play a significant role in Brazil, as they are the main transport instrument used, concentrating more than 60% of the country's transport. Despite the high importance of highways, the lack of quality infrastructure compromises the efficiency of transport, with many high quality roads. This is due to the fact that almost the entire road network in the country is composed of flexible pavements, with a problem related to not meeting the technical requirements of the support capacity of the pavement layers and the quality of the materials used, in addition to the lack of maintenance. periodic be common. This poor conservation of roads in Brazil is verified on the TO-050 highway, in the stretch included in the Porto Nacional - TO ring road, a road of fundamental importance for the flow of the state. In view of this, it was sought, through this research, to analyze the pathological manifestations in TO-050, in the stretch included in the ring road of Porto Nacional - TO, where several pathological manifestations were verified, among which the leather type cracking stands out. alligator, exudation, slipping, undulation and repairs, where most are due to the lack of maintenance on the highway or even the execution of inadequate maintenance. In this sense, it is up to the responsible body, whether the state or the federation after the highway is federalized, to carry out studies on the highway to verify its resistance and load capacity in view of its use, as well as to carry out preventive and corrective maintenance to improve track conditions.