Investigating the Relationship of As-Constructed Asphalt Pavement Air Voids to Pavement Performance (2021) / Chapter Skim
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13 S U M M A R Y The objective of this study was to determine the effect of in-place air voids (AV) on the performance of asphalt concrete (AC)
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14 cracking performance indicators were the year that transverse cracking initiated and the measured transverse cracking expressed as lineal feet per mile after 3 years from the time cracking initiated. The ride performance indicators were the mean international roughness index, in inches per mile, after 10 years of traffic on the surface and the number of years for the initial ride value to increase 25 in/mi.
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15 test results would show improvement if the specimens were compacted to 4%. Using this laboratory perspective, the research team applied the following general terms to the results of the analysis.
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16 • For fatigue of new construction, the ANN model prediction only met the expectation at high asconstructed AV. • For fatigue of rehabilitation, the ANN model prediction significantly met the expectation.
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