A interferência do módulo de resiliência do concreto asfáltico no período de projeto de pavimentos rodoviários

Abstract

Road pavements are planned to meet certain design life depending on the materials and the traffic. The mechanistic analysis predicts that the Asphalt Concrete Resilience Module will be constant along its design life, a fact that diverges from the written ma-terial available found on the subject, the natural aging of the binder and the climatic conditions. In this paper, it was possible to verify that asphaltic pavements designed to attend moderate, heavy or very-heavy traffic, regardless of the support capacity of subgrade, can lose up to 78% of their design life from the third year of operation on, if the Asphalt Concrete Resilience Module obeys a decreasing trend, and a gain of up to 172% for an increasing trend. Thus, it is important to develop performance models that consider the factors that interfere with the behavior of Asphalt Concrete in order to develop projects that are more rational.