The Effect of Material Transfer Devices on HMA Material Uniformity and Ride Quality
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2004-02-01
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TRIS Online Accession Number:01003129
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Abstract:The objectives of this research were to document the influence of MTDs on improving both mix uniformity (i.e., lack of segregation) and initial ride quality. The scope of this project included the evaluation of four Alabama HMA projects constructed during the 2001 and 2002 paving seasons. On three of the four projects, both the binder and surface courses were evaluated. Areas of non-uniformity were identified during construction using an infrared camera, with areas having a temperature difference of more than 19oF being classified as non-uniform. Both ride quality and uniformity after construction was completed was identified using data from the Auburn University Roadware inertial profiler.
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