PROPOSTA PARA CORREÇÃO DAS PATOLOGIAS, SINALIZAÇÃO E GEOMETRIA DO PAVIMENTO FLEXÍVEL DA RODOVIA MG 170: Trecho Guapé/ Ilicínea - MG, km 7,52 ao km 9,82

Abstract

Within road engineering, each type of asphalt is intended for one purpose, priming the base of the pavements; rolling layers of the highways, however it should be noted that application of a high, medium or low standard coating follows certain parameters such as: number and type of heavy duty road users; floor life; material availability; composition of the lower layers of the floor, among others. In Brazil, the first paved road in the country was Rio Petrópolis, in 1928, during the Washington Luís government. In Brazil, asphalt is not ideal for paving highways, due to the intense weathering of its climate, so the ideal is the use of different types of asphalt according to the average temperature of each region. This paper aims to propose solutions to the problems presented on the MG 170 highway, which connects the cities of Guapé-MG to Ilicínea-MG. The study begins on the 7.52 km stretch and ends on the 9.82 km extension. This studied highway is the main paved flow of people and inputs from the city of Guapé to the major centers. The methodology applied to the study was defined in relation to the daily traffic flow, data provided by the Department of Highways of Minas Gerais (DEER), the analysis was carried out in stretches of 100 meters each, referring to worst situation identified along the entire highway. This analysis was determined in the following steps: determination of the Current Servant Value (VSA) by means of scores from 0 to 5; testing of samples collected for bitumen index determination and asphalt aggregate particle size; baseline assays for California Support Capacity (C.B.R) determination and expansion, soil aggregate particle size where they were performed in a third party laboratory; statistical data provided by the agency responsible for the highway and verification of existing road signs and geometry. All results obtained were compared with the specifications of the pre-established standard, in order to identify possible problems, such as increasing flow and intensity of vehicles on the studied pavement demonstrates that in the future it will be suffering major erosions, reducing its useful life, thus Technical solutions were proposed aiming at improving traffic conditions and safety of users.