Realização e acompanhamento de dois trechos experimentaiscom asfalto-borracha no estado do Ceará

Abstract

The Federal University of Ceará teamed with local Transportation Department and Petrobrás to construct two trial sections using asphalt-rubber (AR). More than ecologically correct, helping to solve the problem of tire disposal, mixtures with AR have demonstrated improvements in the performance of the pavement, decreasing the main defects of flexible pavements, like rutting and fatigue cracks. For these two sections a quality control requirements were monitored before, during and after the construction. The Benkelman Beam was used for deflection measurements and some mechanical properties were also investigated. Local aggregates were used in a gap graded gradation (type G of California) and the CaCO3 were used as filler. The AR used was produced by BR Distribuidora with 20% rubber content.