Análise do comportamento mecanístico do novo pavimento da BR-232/PE, trecho: Caruaru-São Caetano.

Abstract

The research that led to this work was developed in a section of 10.0 km, of a total of 19.8 km, the new doubled track of the segment, then in works of restoration and duplication of BR- 232/PE between the cities of Caruaru and São Caetano, Pernambuco. The work in its entirety, was executed in the period between early 2006 and late 2007 and throughout the development of the services were performed research in the new pavement of the duplicated track, once it had been completed. Thus, besides the traditional tests of physical characterization of the materials of the last layer of earth and structure of the pavement, were also made dynamic triaxial test of granular layers, the fatigue tests, traction strength and diameter compression of the asphalt layers and a deflectometer campaingn along the studied segment. Through the application of softwares FEPAVE 2 and RETRAN5-L, it was obtained indicators, under the mechanistic view of the current performance of the pavement and the expectation of its future behavior, to attend a traffic whose weighing research of axles of the region were also analyzed in this work in order to better characterize the application of loads to the pavement. Additionally, conditions were created for further evaluation of the behavior of two different basis used in the studied segment , the one consisted of Simple Graded Gravel - SGG and consisted of Hydraulic Macadam - HM.