Estudo das propriedades físicas, de estado e mecânicas de misturas asfálticas para os revestimentos de pistas de aeródromos.

Abstract

The constituents of asphalt mixtures as well as its physical properties, state and mechanical performance under the action of traffic and the environment must attend the high levels of requirements, inherent in the control organs of national and international airports, established by the International Civil Aviation Organization (ICAO). Fits into this context The importance of the improvement and/or the adequacy of the particle size distribution of the materials is inserted in this context that compose asphalt mixture, which is related directly the texture and to the mechanical behavior of the structure of the airport pavements. This work had as objective the study on the adequacy of particle size distribution of the materials that compose asphalt mixtures of aerodromes (Zone 2 and 3) from the analysis of mechanical physical properties, state and mechanical properties of asphalt mixtures used in lanes landings and takeoffs. The results indicated that it was a significant increment of the Resilient Modulus values and the traction resistance to diametric compression values in test using gyratory compactor when compared with the tests submitted to the compacting for impact. It can be inferred that, for the tracks of landings and takeoff, the dosages asphalt mixtures compressed in gyratory compactor and with particle size distribution intermediate to upper and lower limits of the zone lead more adequate the mechanical properties to asphalt mixtures of the pavement.