Characterization of Illinois Aggregates for Subgrade Replacement and Subbase

The overall objective in this project is to characterize strength, stiffness, and deformation behavior of various types and qualities of aggregate commonly used in Illinois for subgrade replacement and subbase. The project focus is on pavement construction working platform issues. The project will develop aggregate thickness correlations with aggregate properties to modify and improve the thickness requirement curve in Figure A-2 of the Subgrade Stability Manual based on laboratory and field performances. This way, aggregate characteristics will also be used when determining cover thicknesses.


    • English


    • Status: Completed
    • Contract Numbers:

      R 27-1

    • Sponsor Organizations:

      Illinois Department of Transportation

      2300 S. Dirksen Parkway
      Springfield, IL  United States  62764
    • Performing Organizations:

      University of Illinois, Urbana-Champaign

      1105 Newmark Civil Engineering Lab, 205 North Matthews Avenue
      Urbana, IL  United States  61801
    • Principal Investigators:

      Butt, Abbas

      Tutumluer, Erol

    • Start Date: 20060100
    • Expected Completion Date: 0
    • Actual Completion Date: 20090630
    • Source Data: RiP Project 12073

    Subject/Index Terms

    Filing Info

    • Accession Number: 01462899
    • Record Type: Research project
    • Source Agency: Illinois Department of Transportation
    • Contract Numbers: R 27-1
    • Files: RiP
    • Created Date: Jan 3 2013 2:12PM