PREDICTION OF RUTTING RESISTANCE OF ASPHALT MIXTURES

In recent years, rutting has become a dominant type of failure for flexible pavements because of increase in truck tire pressures and traffic volume. It is also becoming more evident that most of the rutting in flexible pavement occurs in the upper part of the asphalt surface layer as a result of the accumulation of permanent deformation within the layer. Permanent deformation of asphalt concrete mixtures is a complex phenomenon, which depends on the properties and proportions of the components of the mixture, construction quality, environmental conditions and the applied loading. Asphalt concrete deformation consists of elastic, viscoelastic, plastic and viscoplastic components. In this study results of triaxial creep and recovery test on asphalt concrete specimens with varying levels of binder content and void content are analyzed by decomposing the total deformation into its components. The variations of these components with time and the number of load applications are modeled using elasto-viscoplastic model based on strain decomposition approach. An index, which may be used as a measure of rutting resistance of asphalt concrete mixtures, is defined. For the covering abstract see ITRD E118503.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9058093980
• Corporate Authors:

  AA Balkema

  P.O. Box 1675
  Rotterdam,   Netherlands  BR-3000
• Authors:
  • Garba, R
  • Horvli, I
• Conference:
  • PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON THE BEARING CAPACITY OF ROADS AND AIRFIELDS, LISBON, PORTUGAL, 24-26 JUNE 2002.
• Publication Date: 2002

Language

• English

Media Info

• Features: References;
• Pagination: p. 839-49
• Serial:
  • Volume: 2

Subject/Index Terms

• TRT Terms: Binders; Bituminous mixtures; Conferences; Deformation; Durability; Failure; Flexible pavements; Forecasting; Loads; Measurement; Porosity; Rutting
• ITRD Terms: 4948: Binder; 4967: Bituminous mixture; 8525: Conference; 5595: Deformation; 5910: Durability; 5520: Failure; 2944: Flexible pavement; 132: Forecast; 5567: Load; 6136: Measurement; 5938: Porosity; 3081: Rutting (wheel)
• Subject Areas: Data and Information Technology; Highways;

Filing Info

• Accession Number: 00963847
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 90-5809-398-0
• Files: ITRD
• Created Date: Oct 3 2003 12:00AM