Developing a Method for Selecting Low-Energy Mixing and Compaction Temperatures for Asphalt Mixtures Considering Asphalt Lubrication and Aggregate Characteristics

This innovation applies tribological principles to develop a method for determining asphalt mixture mixing and compaction temperatures better than currently used methods. The method is based on asphalt binder lubricating properties and critical aggregate properties and involves developing a new tribological test to measure asphalt lubrication ability in the context of the simulated aggregate properties along with an innovative method to more appropriately determine mixture mixing and compaction temperatures with desired aggregate coating and mixture workability based on advanced statistical analysis methods. The results from this research are expected to significantly lower the asphalt mixture mixing temperature and compaction effort, reducing greenhouse gas emission, and saving energy. The results can also significantly improve the aggregates' packing, mixture density and binder film distribution and therefore, mixture mechanical performance.

• Record URL:
  http://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=5462

Language

• English

Project

• Status: Active
• Funding: $140000
• Contract Numbers:

  Project 20-30, IDEA 246

• Sponsor Organizations:

  National Cooperative Highway Research Program

  Transportation Research Board
  500 Fifth Street, NW
  Washington, DC  United States  20001

  American Association of State Highway and Transportation Officials (AASHTO)

  444 North Capitol Street, NW
  Washington, DC  United States  20001

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Safety Innovations Deserving Exploratory Analysis (IDEA)

  Transportation Research Board
  500 Fifth Street, NW
  Washington, DC  United States  20001
• Managing Organizations:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Project Managers:

  Zelinski, Patrick

• Performing Organizations:
  ,   Germany 

  Board of Regents of the University of Wisconsin System

  University of Wisconsin, Madison RSP
  21 N. Park Street, Suite 6401
  Madison, WI  United States  53715-1218
• Principal Investigators:

  Zhang, Runhua

• Start Date: 20231001
• Expected Completion Date: 20250331
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Aggregates; Asphalt mixtures; Compaction; Energy conservation; Greenhouse gases; Innovation; Lubrication; Mixing; Temperature; Tribology; Workability
• Subject Areas: Construction; Energy; Environment; Highways; Materials; Pavements;

Filing Info

• Accession Number: 01875929
• Record Type: Research project
• Source Agency: Transportation Research Board
• Contract Numbers: Project 20-30, IDEA 246
• Files: TRB, RIP
• Created Date: Mar 20 2023 5:26PM