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Framework of Asphalt Balanced Mix Design (BMD) for New England Transportation Agencies
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2020-12-31
[PDF-1.97 MB]
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Edition:Final Report (Feb 2019 – Dec 2020)
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Abstract:The objective of this study was to synthesize existing information and to develop recommendations for a rational Balanced Mix Design (BMD) approach for use by New England transportation agencies. A survey was developed and administered to ascertain information related to pavement distress for the NETC state agencies. The predominate distresses noted were thermal and fatigue cracking. Based on the distresses noted in the survey, candidate performance tests were identified and the pros and cons of each test were outlined in relation to existing availability, equipment cost, and testing time. Potential roadblocks to BMD implementation were also identified. Field and laboratory performance data were collected from three state agencies. An in-depth analysis of the data was conducted to develop preliminary balanced mixture design criteria that is individualized for each state. The criteria were different for each state as the availability of data varied. Finally, knowledge gaps for BMD implementation were identified and recommendations for future research were presented.
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