NRRA: Experimental and Computational Investigations of High-Density Asphalt MixturesStatus: CompleteReport Date: 10/15/2019 Summary: The Indiana Department of Transportation has deployed a high-density asphalt pavement mixture that achieves its target 5 percent air void compaction in the field. Researchers sought to develop a similar mixture with Minnesota aggregates. In this study, they developed a sophisticated model for high-density mixtures and calibrated it with data from previous studies of 5 percent mixes. The research team then conducted tests on three Minnesota high-density mixtures, including two from MnROAD test cells, to further refine the model and to evaluate mixtures. A Phase II study will develop multiple mix designs for Minnesota applications. Final Deliverables: Experimental and Computational Investigations of High-Density Asphalt Mixtures (Report #2019-41) High-Density Asphalt Pavement Mixtures Viable With Local Aggregates (Research Summary) Related Materials: High-Density Asphalt Pavement Mixtures Viable With Local Aggregates (Blog Post) Related Research: Development of Superpave 5 Asphalt Mix Designs for Minnesota Pavements Development of Superpave 5 Asphalt Mix Designs for Minnesota Pavements Project Personnel: Principal Investigator: Mihai Marasteanu Co-Principal Investigator: Manik Barman, Jia-Liang Le, Kimberly Hill, Mugurel Turos Technical Liaison: Eddie Johnson Project Coordinator: Elizabeth Klemann Panel Members: Chelsea Bennett - Materials & Road Research Dusty Ordorff - Bituminous Roadways Gregory Johnson - Materials & Road Research John Garrity - Materials & Road Research Teng Man - University of Minnesota Tianhao Yan - University of Minnesota Timothy Clyne - Metro District Wes Liepold - Jackson County Public Works
