Flexible Pavement Analysis - Study of a critical stretch on the AM highway - 010

Abstract

The main means of transport used in Brazil to move people and cargo are highways, making it indispensable to maintain and recover the highway network to attend the socioeconomic demands of the country. Therefore, it is essential to evaluate the need of each highway, according to the performance and durability of the pavement and according to the types of pathologies presented. This study aims to analyze the pathological problems existing in a stretch of the state highway AM -010, between the capital of Amazonas, Manaus, and county Rio Preto da Eva, analysis to be done post photographic survey. Then the images of the pathologies were evaluated, diagnosed and classified accordingly norm of the National Department of Transport Infrastructure, DNIT. In the section evaluated the most common pathologies were: cracks, sinking, slippages, patches executed irregularly and pot holes, in addition to points without roadsides, compromised structure or obstructed, impossible to be used.In Brazil, there are 1,720,700 km of highways, 1,349,938 km are not paved, only 213,453 km are paved, that is, 12.4% of the network (CNT, 2019). In addition to the Brazilian paving mesh being small, a large part is in a state not suitable for traffic, presenting pathologies, mainly such as cracks, sinking, slippages, poorly executed patches and pot holes, among other defects.The 2019 survey of the National Transportation Confederation (CNT), according to the extent evaluated, classified the federal and state highways of Amazonas in the general state as: 45.5% regular, 19.07% bad and 35.5% terrible; and classified the pavement as: 65.5% regular, 7.6% bad and 26.9% terrible.Cited the problems, this article presents a case study of the AM-010, with photographic survey, the stretch is located between the state capital, Manaus, and the county Rio Preto da Eva, starting point at km 22 and end point at km 25.The AM-010 is a state radial highway that connects the capital to the interior of the state, with a path Manaus -Rio