TSR Replacement and Stripping Tests River Gravel in Asphalt Mixes

This project will look at the use of river gravel in asphalt mixes and the effectiveness of performance tests in measuring the quality and durability. A few mixes recently with Osage River Gravel have had issues with stripping when the River Gravel has been in the lower layers. They seem to be performing fine on the surface but in the lower layer where they sit near the bottom and may remain saturated for a period of time, they are causing stripping. The research team needs to be able to correlate these mixes to the Balanced Mix Design tests so that they fail when the team has a mix that is going to strip.

Language

• English

Project

• Status: Active
• Funding: $250000
• Contract Numbers:

  TR202306

• Sponsor Organizations:

  Missouri Department of Transportation

  1617 Missouri Boulevard
  P.O. Box 270
  Jefferson City, MO  United States  65102
• Project Managers:

  Breeding, Scott

• Performing Organizations:

  Missouri Center for Transportation Innovation

  Lafferre Hall
  416 S 6th St.
  Columbia, Missouri  United States  65201

  University of Missouri, Columbia

  Department of Civil Engineering
  Columbia, MO  United States  65211
• Principal Investigators:

  Buttlar, William

• Start Date: 20230615
• Expected Completion Date: 20250101
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Asphalt mixtures; Durability; Gravel; Mix design; Performance tests; Stripping (Pavements)
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01892499
• Record Type: Research project
• Source Agency: Missouri Department of Transportation
• Contract Numbers: TR202306
• Files: RIP, STATEDOT
• Created Date: Sep 7 2023 9:18AM