Evaluation of bending beam rheometer for characterization of asphalt mixtures

The feasibility of characterizing asphalt mixtures at low temperatures by means of the Bending Beam Rheometer (BBR) is investigated in this paper. The main difficulty in implementing this test method into current practice is the use of thin beams that may not capture the overall behavior of the actual asphalt pavement. The volume of material tested may not be representative, especially when the asphalt mixtures contained aggregate sizes that are...