United States Department of Transportation
i
Evaluation of Stripping Potential Tests for Bituminous Concrete
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2022-11-08
[PDF-3.14 MB]
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Edition:Final Report 2020-2022
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Abstract:Pavement stripping due to loss in adhesion/binding between asphalt binder and aggregate in presence of moisture is a common and challenging pavement distress in wet climates such as Vermont. Although Vermont Agency of Transportation (VTrans) requires Hamburg Wheel Tracking Test (AASHTO T 324) during mix design approval, MRD-10 is required daily if the source aggregate is known to be prone to stripping. MRD-10 test is usually conducted on aggregates retained on US No. 4 Sieve, excluding fine aggregates present in the asphalt concrete making this test unreliable. Thus, in this study, the effectiveness of ASTM D3625 (i.e. boiling water test), a more common test in other state DOTs is evaluated.
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