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B. Barra, L. Momm, Y. Guerrero, L. Bernucci
Construction and Building Materials, Volume 29, April 2012
Abstract
This paper evaluates the fatigue behavior of dense asphalt mixes in dry and environmental-conditioning states. Two-point bending tests were carried out without rest periods at 10 °C and 25 Hz, with the control of the displacement amplitude imposed on trapezoidal specimens. The effects of two different types of mineral fillers were also tested (granite and limestone powders). The results indicate that the action of water has a decisive influence on the fatigue resistance of the asphalt mixes, the effect being more negative with an increase in temperature. Furthermore, the asphalt mix formulated with limestone powder presented a better fatigue resistance.
Additional Information
“The prototype used in this research was developed and constructed at Federal University of Santa Catarina (UFSC), in Brazil, into the premises of the Paviment Laboratory (LabPavi), coordinated by the Pavement Research and Development Group (GDPPav), being the unique prototype existent in Brazil which is capable to carry out fatigue and complex modulus tests according to French formulation and design methodologies for asphalt concrete pavement structures.”
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