Project Selection: A Critical Aspect of Long-Lasting Thin Asphalt Overlays

This article considers the importance of project selection when planning for the use of thin asphalt overlays, defined as equal to or less than 1.5 inches. The author first reviews the factors that will result in a good-quality, long-lasting overlay, including type of asphalt mixture, quality and handling of the component materials, final mix design, laydown practices, and quality control. The article then describes common pavement distress types and treatment options for longitudinal cracking in the wheelpath, longitudinal cracking not in the wheelpath, reflective cracking, alligator cracking, rutting, utility cuts, patch failure, potholes, raveling and weathering, polished aggregates, and bleeding or flushing. Black-and-white photographs illustrate each type of pavement distress under discussion. The author reiterates the important of laying thin asphalt overlays only over a pavement surface that is structurally sound.

Language

  • English

Media Info

  • Media Type: Print
  • Features: Photos;
  • Pagination: pp 7-14
  • Serial:
    • Asphalt
    • Volume: 30
    • Issue Number: 3
    • Publisher: Asphalt Institute
    • ISSN: 0004-4954

Subject/Index Terms

Filing Info

  • Accession Number: 01599854
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 21 2016 1:20PM