SPR-4724: Detection and Assessment of Sulfates in the Pavement Subgrade

The aim of the project is to determine whether detection of sulfates in lime-treated subgrade soils that have been in service for a number of years is the result of false positives from test ITM 510. Detection of sulfates in lime-treated soils is problematic because it requires removal of the soils. This is a costly outcome, given that the subgrade soils have been in service for a number of years and the pavement may not have shown signs of distress. The problem is becoming significant given the number of maintenance and rehabilitation projects that are ongoing or planned.


    • English


    • Status: Active
    • Funding: $195170
    • Contract Numbers:


    • Sponsor Organizations:

      Purdue University/Indiana Department of Transportation JHRP

      Purdue University
      1284 Civil Engineering Building, Room 4154
      West Lafayette, IN  United States  47907-1284
    • Principal Investigators:

      Bobet, Antonio

      Santagata, Marika

    • Start Date: 20220801
    • Expected Completion Date: 20241031
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01853157
    • Record Type: Research project
    • Source Agency: Indiana Department of Transportation
    • Contract Numbers: SPR-4724
    • Files: RIP, STATEDOT
    • Created Date: Jul 26 2022 1:53PM