EVALUATION OF MODIFIED BITUMEN OUT OF THE LINEAR VISCOELASTIC APPROACH

Due to the necessity of producing modified bitumen of an increasingly high quality and performance, the most recent studies have been investigating the relationship between the rheology of bitumen and the one of asphalt mixtures. In particular, adoption of SHRP methodology for a classification of bitumen performance is essential for a rigorous approach to rheologic study of bitumen, but can be further implemented in the case of bitumen modified with polymers. As a matter of fact, rheological analysis of modified bitumen using linear viscoelastic approach (which is at the base of basical SHRP approach) does not emphasize how much bitumen's behaviour depends on deformation rate to which it is subjected inside asphalt mixture. This article presents the results of an experimental investigation out of a linear viscoelastic approach and conducted on several types of Italian bitumens, pure and with different degrees of modification; tests were performed using a Dynamic Shear Rheometer for evaluation of rutting susceptibility. The investigation has highlighted significant differences in relationships between binder complex shear modulus, temperature and stress frequency when passing from small to big deformations range. For the covering abstract see ITRD E121480.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9080288446
• Corporate Authors:

  FOUNDATION EURASPHALT

  PO BOX 255
  BREUKELEN,     3620 AG
• Authors:
  • Montepara, A
  • Giuliani, F
  • ANTUNES, I
  • D'ELIA, L
  • ITALIA, P
• Publication Date: 2004

Language

• English

Media Info

• Features: References;
• Pagination: p. 1571-8
• Serial:
  • PROCEEDINGS OF THE 3RD EURASPHALT AND EUROBITUME CONGRESS HELD VIENNA, MAY 2004
  • Volume: 2
  • Publisher: FOUNDATION EURASPHALT

Subject/Index Terms

• TRT Terms: Bitumen; Conferences; Deformation; Polymers; Rheology; Rutting; Specifications; Tests; Viscoelasticity
• ITRD Terms: 4963: Bitumen; 8525: Conference; 5595: Deformation; 7482: Polymer; 5442: Rheology; 3081: Rutting (wheel); 177: Specifications; 6255: Test; 5935: Viscoelasticity
• Subject Areas: Data and Information Technology;

Filing Info

• Accession Number: 00981005
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 90-802884-4-6
• Files: ITRD
• Created Date: Nov 3 2004 12:00AM