Relationship of Air Voids, Lift Thickness, and Permeability in Hot-Mix Asphalt Pavements (2004) / Chapter Skim
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Chapter 3 - Research Approach
Chapter 3 - Research Approach
Pages 3-4
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From page 3... ...
The plan was to select the t/NMAS that gave optimum density; but, as will be shown later, the results from the Superpave gyratory compactor data did not provide a conclusive answer; hence, additional work was needed to better establish the appropriate ratio. It was then decided to look at many of the same mixes with a vibratory compactor, to establish whether the vibratory compactor would better simulate field compaction and would provide more conclusive results The experimental variables included two aggregates, three gradations, two nominal aggregate sizes for Superpave, and three nominal aggregate sizes for SMA.
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From page 4... ...
AASHTO TP56-99 42.9 43.0 44.0 Percent Crushed (%) ASTM D5821 100 100 80 Fine Aggregate Bulk Specific Gravity AASHTO T-84 2.678 2.689 2.610 Apparent Specific Gravity AASHTO T-84 2.700 2.752 2.645 Absorption (%)
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