ASPHALT BINDER FLOW ACTIVATION ENERGY AND ITS SIGNIFICANCE FOR COMPACTION EFFORT

The temperature dependence of viscosity of neat and modified asphalt binders were evaluated between 80 and 200 degrees C using rotational viscometry. The activation energy for flow was determined for these asphalt binders using the Arrhenius equation. Different types of polymer and polymer contents were selected to study the effects of polymer type and concentration on the activation energy for flow. Attempts were made to use a global model to evaluate the relationship between polymer content and viscosity. The effect of aging was also discussed. The results indicate that the flow activation energy can be used to rank the temperature susceptibility of different asphalt binders. It is suggested that this ranking may be used to predict the relative compaction effort for the different asphalt binders studied. Densification curves for different asphalt binders at a compaction temperature of 138 degrees C are discussed in relation to their activation energy for flow. 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:
  • Salomon, D
  • Zhai, H
• Publication Date: 2004

Language

• English

Media Info

• Features: References;
• Pagination: p. 1754-62
• Serial:
  • PROCEEDINGS OF THE 3RD EURASPHALT AND EUROBITUME CONGRESS HELD VIENNA, MAY 2004
  • Volume: 2
  • Publisher: FOUNDATION EURASPHALT

Subject/Index Terms

• TRT Terms: Activation (Chemistry); Binders; Bitumen; Compaction; Conferences; Flow; Fluid dynamics; Mathematical models; Polymers; Temperature; Viscosity
• ITRD Terms: 7126: Activation (physicochem); 4948: Binder; 4963: Bitumen; 3686: Compaction; 8525: Conference; 5430: Flow (fluid); 6473: Mathematical model; 7482: Polymer; 6722: Temperature; 5936: Viscosity
• Subject Areas: Construction; Data and Information Technology;

Filing Info

• Accession Number: 00981025
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 90-802884-4-6
• Files: ITRD
• Created Date: Nov 3 2004 12:00AM