HIGH PRESSURE LIQUID CHROMATOGRAPHY AS A METHOD OF MEASURING ASPHALT COMPOSITION

The molecular size composition of asphalt as determined by high pressure liquid chromatography (HPLC) has been related to the performance of bituminous roadways in the state of Montana. HPLC and asphaltenes analyses have been used to define the characteristics of an asphalt which has shown satisfactory durability and longevity. These characteristics have been proposed as a model of high quality asphalt. HPLC has been used to characterize the the asphalts produced by each of Montana's refineries. It has also been used to follow the changes in the molecular size distribution which result from mixing with aggregate and with lime. These results suggest that the molecular size characteristics of asphalt may be engineered to more closely approach the model. It is also suggested that HPLC analysis may be valuable in designing pavement recycling projects. HPLC has been shown to be a more accurate measure of asphalt quality than asphaltenes content, penetration or ductility. (FHWA)

  • Corporate Authors:

    Montana State University, Bozeman

    Department of Chemistry
    Bozeman, MT  United States  59717

    Montana Department of Highways

    6th Avenue and Roberts
    Helena, MT  United States  59601
  • Authors:
    • Jennings, P W
    • Pribanic, P W
    • CAMPBELL, W
    • DAWSON, K
    • Shane, S
    • Taylor, R
  • Publication Date: 1980-3

Media Info

  • Pagination: 82 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00322720
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: FHWA-MT-79-30 Final Rpt.
  • Contract Numbers: 7930
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Mar 12 1981 12:00AM