The asphaltene content of Australian bitumens: part 1: testing of pre-1992 samples

The asphaltene content of bitumens from the ARRB library of samples dating back to 1956 was measured for the period up to 1991. The aim of the work is to build up a database of physical and chemical properties of Australian bitumens of acceptable field performance. This can then be used to benchmark future bitumens and to help investigate any problems which may arise. It was found that asphaltene content had fallen in the period studied and this was attributed to a change in bitumen manufacturing route. The change was also associated with an increase in temperature susceptibility. Low asphaltene content has been linked, though not conclusively, with 'tender' bitumens (excessive bitumen fluidity at high service temperatures) and poor performance in the field.

Language

  • English

Media Info

  • Pagination: 14p

Subject/Index Terms

Filing Info

  • Accession Number: 01388389
  • Record Type: Publication
  • Source Agency: ARRB
  • ISBN: 1921139471
  • Report/Paper Numbers: AP-T50/06
  • Files: ATRI
  • Created Date: Aug 23 2012 12:51AM