Design Requirements for High Traffic Asphalt Mixes to Ensure Pavement Performance
High Traffic Asphalt Mixes in Wisconsin Department of Transportation (WisDOT) are routinely using Stone Matrix Asphalt compacted to 100 design gyrations. Concerns have arisen that the mixtures contain low asphalt contents and are difficult to compact in the field. A more equitable balance between mixture stiffness and cracking resistance is desirable to optimize and/or improve the constructability and performance of High Traffic Asphalt Mixtures. The project objective is to modify WisDOT Hot Mix Asphalt design requirements for High Traffic mixtures to improve constructability and performance for high-volume freight corridors over a 20-year design life. The project will involve summarizing existing mix design requirements in regions with similar climates ("Wet- Freeze") and aggregate resources, benchmark existing WisDOT mixture designs using volumetric and performance testing and use a combination of laboratory-reproduced mix designs and construction/in-service performance data to propose modifications to existing mixture designs and procedures.
Language
- English
Project
- Status: Active
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Sponsor Organizations:
Center for Transportation Research and Education
2711 South Loop Drive, Suite 4700
Ames, IA United States 50010-8664 - Start Date: 20231002
- Expected Completion Date: 20260803
- Actual Completion Date: 0
Subject/Index Terms
- TRT Terms: Asphalt content; Cracking; Hot mix asphalt; Mix design; Pavement performance; Stiffness
- Geographic Terms: Wisconsin
- Subject Areas: Design; Highways; Materials; Pavements;
Filing Info
- Accession Number: 01979808
- Record Type: Research project
- Source Agency: Wisconsin Department of Transportation
- Files: RIP, STATEDOT
- Created Date: Feb 18 2026 11:11AM