Thin Asphalt Overlays Efficiently Preserve Pavements

This article reviews the benefits of using thin asphalt overlaps as a pavement preservation treatment. The author lists benefits as including transportation agencies’ familiarity with the process; the ability of the overlay to handle high traffic levels and stresses; a smooth, skid-resistant riding surface; quick opening to traffic after placement; ease of maintenance; and a long service life. The author then describes different types of thin overlays, including dense graded, open graded, and specialty mixes. One section reviews the potential limitations of thin overlays, then the author reports on a thin asphalt overlap demonstration project, constructed in 2012 in Nashville, Tennessee. The author stresses that, like all preservation operations, thin overlays should be applied before extensive pavement rehabilitation is needed. Readers are referred to the Foundation for Pavement Preservation website (www.fp2.org).

Language

  • English

Media Info

  • Media Type: Print
  • Features: Photos; References;
  • Pagination: pp 13-16
  • Serial:
    • Asphalt
    • Volume: 28
    • Issue Number: 3
    • Publisher: Asphalt Institute
    • ISSN: 0004-4954

Subject/Index Terms

Filing Info

  • Accession Number: 01531707
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 4 2014 11:32AM