RHEOLOGICAL PROPERTIES OF BITUMEN/FILLER MIXTURES

Permanent deformation of hot mix asphalt (HMA) is influenced by the aggregate interlock and the viscous behavior of the bitumen/filler mastic, which serves as the binder in asphalt. In the Strategic Highway Research Program (SHRP), tests are proposed to determine the rheological properties of the pure bitumen. In this contribution, the results are presented from a study in which the rheological properties of bitumen/filler mixtures were determined in accordance with the SHRP recommendations. The same mixtures were used to prepare HMA samples, in order to determine permanent deformation in a dynamic creep experiment. The binder types used in this study were a straight run, a polymer modified and a high modulus bitumen, all of them based on crude of Venezuelan origin. The fillers which were used were of low and moderate absorptivity respectively. The results emphasize the influence of the filler on the rheology of the mortar and the permanent deformation of HMA mixtures and urge the inclusion of the definition of the desired mortar properties in the asphalt design procedures. (A) For the covering abstract see IRRD 885061.

• Corporate Authors:

  European Asphalt Pavement Association

  P.O. Box 175
  3620 AD Breukelen,   Netherlands 

  EUROBITUME (EUROPEAN BITUMEN ASSOCIATION)

  PLACE MADOU 1, TOUR MADOU, 25TH FLOOR
  BRUSSELS,   Belgium  1030
• Authors:
  • WORTELBOER, J P
  • HOPPEN, H J
  • Ramond, G
  • PASTOR, M
• Conference:
  • EURASPHALT & EUROBITUME CONGRESS, STRASBOURG, 7-10 MAY 1996. VOLUME 2. PAPER E&E.4.079
• Publication Date: 1996

Language

• English

Media Info

• Features: References;
• Pagination: 13 p.

Subject/Index Terms

• TRT Terms: Bitumen; Bituminous mixtures; Conferences; Deformation; Fillers (Materials); Rheology
• ITRD Terms: 8525: Conference; 5595: Deformation; 4975: Filler bitumen mixture; 5442: Rheology
• Subject Areas: Data and Information Technology;

Filing Info

• Accession Number: 00736234
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, ATRI
• Created Date: May 30 1997 12:00AM