Reducing the Environmental Impacts of Recycled Concrete Aggregate in Highway Applications

This study will benefit Minnesota Department of Transportation (MnDOT) for the best Recycled Concrete Aggregate (RCA) base application with minimized negative impacts. This includes investigating the effects of aggregate blends, soil type, and layer thickness on the pH of effluent and concentration of leachates over the short and long term. Recommendations will also be made on the minimum distance from the RCA base to the groundwater.

• Record URL:
  • https://researchprojects.dot.state.mn.us/projectpages/details?id=28675&type=CONTRACT

Language

• English

Project

• Status: Active
• Funding: $250,000.00
• Contract Numbers:

  1036337 WO#02

• Sponsor Organizations:

  Minnesota Department of Transportation

  395 John Ireland Boulevard
  St Paul, MN  United States  55155
• Managing Organizations:

  MnDOT Research & Innovation

  Minnesota Department of Transportation
  395 John Ireland Blvd
  St. Paul, Minnesota  United States  55155
• Performing Organizations:

  Michigan Technological University, Houghton

  1400 Townsend Drive
  Houghton, MI  United States  49931
• Principal Investigators:

  Dai, Zhicheng

• Start Date: 20230808
• Expected Completion Date: 20261231
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Concrete aggregates; Environmental impacts; Leachate; Pavement components; Recycled materials
• Geographic Terms: Minnesota
• Subject Areas: Environment; Highways; Materials; Pavements;

Filing Info

• Accession Number: 02004350
• Record Type: Research project
• Source Agency: Minnesota Department of Transportation
• Contract Numbers: 1036337 WO#02
• Files: RIP, STATEDOT
• Created Date: Sep 28 2026 5:40PM