Bending beam rheometer testing of asphalt mixtures
This paper provides a test protocol for performing creep tests on asphalt mixture beam specimens using the bending beam rheometer, and addresses the issues related to performing this test. First, a detailed sample preparation procedure is presented and the experimental data are provided
to assess the consistency of this method. Then, three loading methods are investigated, and results are analysed and compared using statistical tools. Finally, a preliminary investigation on the representative volume element of asphalt mixtures at low temperatures is performed by testing beams
of different sizes.
Keywords: asphalt mixtures; bending beam rheometer; creep stiffness; low-temperature cracking; representative volume element
Document Type: Research Article
Affiliations: 1: Department of Civil Engineering,University of Minnesota, MinneapolisMN, USA 2: Civil and Environmental Engineering Department,University of Connecticut, StorrsCT, USA
Publication date: 01 October 2011
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