AMPP

Asphalt Materials and Pavements Program

AMPP|Research|In-Progress

Design Requirements for High Traffic Asphalt Mixes to Ensure Pavement Performance

Project Details
STATUS

In-Progress

START DATE

10/19/23

END DATE

10/18/25

FOCUS AREAS

Infrastructure

RESEARCH CENTERS InTrans, AMPP
SPONSORS

Wisconsin Department of Transportation

Researchers
Principal Investigator
Chris Williams

Director, AMPP

About the research

The objectives of the current research are as follows:

  • Summarize existing mix design requirements for high traffic (HT) hot-mix asphalt (HMA) mixtures in regions with similar climates (“Wet-Freeze”) and aggregate resources to Wisconsin. Identify potential areas of concern and/or improvement.
  • Benchmark existing Wisconsin Department of Transportation (WisDOT) HT mixture designs using volumetric and performance testing; proposed testing must include consideration of prior and ongoing HMA performance testing research.
  • Propose modifications to existing HT mixture designs based on available data, benchmarking, and testing, and determine whether improvements to constructability and performance can be achieved using the proposed mix design procedure changes.
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