CHARACTERIZATION OF ASPHALT QUALITY BY INVERSE GAS-LIQUID CHROMATOGRAPHY

A RELATIONSHIP HAS BEEN SHOWN TO EXIST BETWEEN RESULTS OF INVERSE GAS CHROMATOGRAPHY MEASUREMENTS ON ASPHALTS AND THEIR QUALITY AS HOT-MIX CONSTITUTENTS. SPECIFICALLY, THE INTERACTION COEFFICIENT (I), CALCULATED FOR EACH ASPHALT FROM ITS INVERSE GAS-LIQUID CHROMATOGRAPHY (IGLC) DATA, IS PROGRESSIVELY LOWER FOR HIGHER VISCOSITY VALUES (SSF). THIS RELATIONSHIP IS NOT CLEARLY DEFINED, BUT IT IS DEMONSTRATED THAT THERE IS STATISTICAL SIGNIFICANCE TO THE REPRESENTATION OF THE DATA BY SHOWING THE RELATION AS: I EQUALS 142.3 MINUS 0.309 (SSF). AS A PHYSICAL PROPERTY THE VISCOSITY IS USED AS A SPECIFICATION FOR THE PURCHASE OF ASPHALTS, AND IS CORRELATED WITH WEATHERING TO DEMONSTRATE OBSERVATIONS OF PHOTOGRAPHS OF THE WEATHERED SAMPLES. THE IGLC DATA AND INTERACTION COEFFICIENTS DEPEND UPON THE CHEMICAL COMPOSITION OF THE ASPHALT. /FHWA/

  • Supplemental Notes:
    • The University of Southwestern Louisiana is now the University of Louisiana, Lafayette.
  • Corporate Authors:

    University of Louisiana, Lafayette

    104 University Circle
    Lafayette, LA  USA  70504

    Louisiana Department of Highways

    P.O. Box 44245, Capitol Station
    Baton Rouge, LA  USA  70804
  • Authors:
    • Metcalfe, T B
    • Averitt, W K
  • Publication Date: 1972-4

Media Info

  • Pagination: 47 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00210482
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Apr 8 1973 12:00AM