Comportamento mecânico de camadas de bases granular e tratada com cimento em rodovia de tráfego muito pesado

Abstract

The use of test roads is a current tendency to evaluate materials and methods applied in pavement construction, under weather and traffic real conditions. There are worldwide several test roads monitoring softwares, which significantly contribute to pavement technology development. Therefore, this paper goal is to evaluate the performance of two sections located at a test road in Fernão Dias Highway (BR-381). Through Falling Weight Deflectomer (FWD) monitoring and backcalculation methods, the main purpose was to evaluate the mechanical performance of a flexible pavement, built with base of crushed stone, and a semi-rigid pavement, built with base of cement-treated Crushed Stone. The traffic influence related to the pavement damage was comparatively evaluated between the flexible and semi-rigid pavement sections.