Unraveling the Mystery of Asphalt Raveling

This article analyzes asphalt raveling, which is a type of stripping where the adhesive bonding between asphalt mix and the aggregate is broken due to moisture. The author describes how raveling progresses in terms of mix deficiencies, the prevalence and prevention of raveling, remedies for roads already afflicted, the use of anti-strip additives to promote adhesion between the aggregate and the binder, the importance of anti-strips for open-graded friction courses (OGFC), and new methods of stripping detection. A specific case example of the use of anti-strips in Canada is given through the Ontario Ministry of Transportation's implementation of the product as the dense asphalt friction courses used in the late 1980s began to fail. These courses had a 12-15 year service life and were used to resist rutting associated with heavy commercial vehicles, although only lasted four to seven years due to premature stripping and raveling.

Language

  • English

Media Info

  • Media Type: Print
  • Features: Illustrations; Photos;
  • Pagination: pp 50-54, 56, 58
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01047143
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Files: BTRIS, TRIS, ATRI
  • Created Date: Apr 19 2007 1:54PM