Análise das metodologias empregadas nas obras de manutenção da estrada N260: técnicas de revestimento e desempenho

Abstract

Roads are very important infrastructures in the development of a country, they are one of the fundamental pillars of a country. Given such importance, they must be well dimensioned and periodic maintenance must be guaranteed so that structural and/or functional problems do not occur during the useful life of the pavement. It is already known that roads have a shorter useful life compared to other civil engineering infrastructures, such as buildings and bridges. Road pavements are infrastructures that sooner or later will suffer deterioration over time that will require maintenance work, which in many cases does not need to wait for the pavement to deteriorate. Periodic maintenance is necessary, such as cleaning ditches, drainage devices, and cleaning roads to prevent the accumulation of water that could cause damage to the pavement. This paper addresses maintenance techniques, which are first and foremost preceded by the identification of pavement pathologies. In addition to periodic maintenance, in this case, the filling of potholes, it also addresses the restoration of the pavement, specifically in the execution of the coating layer. This work also addresses laboratory tests for the physical and mechanical characterization of the materials used in the work and the comparison of their results with the technical specifications of the South African SATCC standard. This work is a report on a professional internship carried out at ANE, IP-Manica delegation, in the technical department in the soil laboratory area, where different types of laboratory tests of soils and aggregates were monitored. The execution of the coating layers and filling of potholes on the N260 road was also monitored.