Effects of "Dust" on PG Asphalt Binder

This project will investigate the effects of "dust" on Performance Graded (PG) asphalt binder and modified PG asphalt binder. The principal factors of this investigation will dust size, percentage of dust within the asphalt binder, temperature and asphalt binder modification. The effects of dust in asphalt binder may be detrimental to mix performance, causing to mix to be susceptible to rutting, flushing and cold weather cracking. During the winter of 2000 the Rhode Island Department of Transportation (RIDOT) Materials Main Laboratory conducted testing to investigate the effects of dust on neat and modified PG asphalt binder. The assumption was that dust, defined as material passing the # 325 sieve could behave as an "extender" of the asphalt binder within the asphalt pavement mix. During primary investigation, the assumption was supported; at certain conditions the "effective asphalt binder" may be greater than the "actual asphalt binder".

    Language

    • English

    Project

    • Status: Active
    • Funding: $30000.00
    • Contract Numbers:

      SPR-2282 (269)

    • Sponsor Organizations:

      Rhode Island Department of Transportation

      State Office Building, 2 Capitol Hill
      Providence, RI  United States  02903
    • Project Managers:

      Franco, Collin

    • Performing Organizations:

      Rhode Island Department of Transportation

      State Office Building, 2 Capitol Hill
      Providence, RI  United States  02903
    • Principal Investigators:

      Frament, Ian

    • Start Date: 20030601
    • Expected Completion Date: 0
    • Actual Completion Date: 0
    • Source Data: RiP Project 9423

    Subject/Index Terms

    Filing Info

    • Accession Number: 01458811
    • Record Type: Research project
    • Source Agency: Rhode Island Department of Transportation
    • Contract Numbers: SPR-2282 (269)
    • Files: RiP, STATEDOT
    • Created Date: Jan 3 2013 12:50PM