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Hot Mix Asphalt Research Investigation for Connecticut - Final Report
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2022-03-22
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[PDF-200.25 KB]
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Alternative Title:Hot Mix Asphalt Research Investigation for Connecticut Study No: SPR-2250 Final Report – Part G
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Edition:Final Report, March 2006 – December 2021
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Abstract:Six topics were investigated involving specifications, performance and testing of hot mix asphalt in Connecticut. An investigation into the possible reduction in the number of mix design levels used in CT resulted in a recommendation to eliminate Level 4. An investigation into minimum asphalt contents in CT mixes was halted and commenced under a different project. An investigation into permeability/porosity testing in CT concluded that permeability can serve as a surrogate for density but a larger, more robust dataset is needed to validate regression models that could be used on mixes in CT. An investigation into the use of a field permeameter for non-destructive dispute resolution testing on bridge decks concluded that the test is too subjective to be used in that manner. Comparisons between wearing surfaces designed with Superpave and Marshall methods indicated no difference in performance as it relates to resisting damage from environmental or loading stress.
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