Mobile linear traffic simulator method to forecast behavior and performance of asphalt pavements. / Método de uso de simuladores de tráfego linear móvel de pista para a determinação de comportamento e previsão de desempenho de pavimentos asfálticos.

AUTOR(ES)

André Felipe Vale

DATA DE PUBLICAÇÃO

2008

RESUMO

Full-scale accelerated pavement testing is defined as the controlled application of a wheel load in a pavement structure to determine the pavement system response and its performance under accelerated conditions of accumulated damage in a compressed time period (METCALF, 1996). Loads at or above the legal maximum allowed by highway agencies can be applied at test tracks, using simulators designed solely for this purpose, or at existent roads using mobile simulators positioned right at the road pavement structure. This layout provides an interesting advantage in the study of materials and pavement rehabilitation techniques by preserving field conditions, specially structural and environmental characteristics. This research describes the results from the first accelerated pavement tests with mobile linear traffic simulator in Brazil and their contribution for the development of design procedures, distress monitoring methods, and road planning. As part of this research, a wide literature review was done associated with practical case studies, the current stage of knowledge in this area, and a real scale synthesis of accelerated pavement experiments with linear mobile traffic simulators. This research proposes a simulation method for testing pavement sections and the evaluation tests to be performed according to the objective of the accelerated pavement test study. This research is a contribution to the state of practice of this type of accelerated pavement testing in Brazil and outlines the path for future applications of this technology in the country.

ASSUNTO(S)

accelerated pavement test ensaios acelerados pavimentos flexíveis tráfego (simulação; métodos) method heavy vehicle simulator

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