Expansion of AASHTOWare ME Design Inputs for Asphalt Layers
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2022-03-01
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Edition:Final Report October 2019 to February 2022
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Abstract:The Wisconsin Department of Transportation (WisDOT) has supported several research studies in the past decades to measure the mechanical or performance properties of asphalt mixtures in support of the AASHTOWare Pavement ME Design (PMED) software to design pavement structures in Wisconsin. The outcome from these studies was to prepare a library or catalog of the asphalt materials inputs that can be integrated into the WisDOT pavement design practice for using the AASHTOWare PMED software. This research study expanded the catalog or material library of asphalt mixtures that are being paved in Wisconsin in support of the PMED software’s use. The catalog includes the level 1 material inputs that can be selected by pavement designers in Wisconsin to reflect the mixtures used in day to day practice. The research study also provided an update to the structural layer coefficients required by the AASHTO 1972 Interim Design Guide, for which WisDOT currently uses, to represent the current asphalt mixtures being placed in Wisconsin.
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