Requirements of Aggregate Materials as Subbase, Base, Surface, and Shoulder Courses

This project will determine how the type and amount of fine aggregate in subbase, base, surface or shoulder coarse materials impacts aggregate performance under traffic loads. Researchers will evaluate field performance of lab findings from ICT-IDOT project R27-157 using an accelerated pavement testing device to simulate traffic loads on aggregate layers. They aim to determine which material properties improve strength and durability and what dust ratio has the best performance. Illinois Department of Transportation (IDOT) will use the results to update their road construction policies, allowing them to build higher performing roadways that will extend the life of pavement as well as reduce costs.

Language

• English

Project

• Status: Active
• Funding: $970,846.00
• Contract Numbers:

  R27-278

• Sponsor Organizations:

  Illinois Department of Transportation

  Bureau of Materials and Physical Research
  126 East Ash Street
  Springfield, IL  United States  62704-4766
• Managing Organizations:

  University of Illinois, Urbana-Champaign

  Illinois Center for Transportation
  1611 Titan Drive
  Rantoul, IL  United States  61866
• Performing Organizations:

  University of Illinois, Urbana-Champaign

  Department of Civil and Environmental Engineering
  Newmark Civil Engineering Laboratory
  Urbana, IL  United States  61801-2352

  Southern Illinois University, Edwardsville

  Department of Civil Engineering
  Campux Box 1800 Building, Room 2056
  Edwardsville, IL  United States  62026-1800
• Principal Investigators:

  Tutumluer, Erol

  Osouli, Abdolreza

  Ullah, Saad

• Start Date: 20250816
• Expected Completion Date: 20280815
• Actual Completion Date: 0
• USDOT Program: Research and Development

Subject/Index Terms

• TRT Terms: Durability; Dust; Fine aggregates; Pavement layers; Pavement performance; Traffic loads
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01964164
• Record Type: Research project
• Source Agency: Illinois Department of Transportation
• Contract Numbers: R27-278
• Files: RIP, STATEDOT
• Created Date: Aug 28 2025 9:46AM