New Applications for Thin Concrete Overlays: Three Case Studies

The need for optimizing preservation and rehabilitation strategies used to maintain the Nation’s highway pavements has never been greater. Concrete overlays have a long history of use to preserve and rehabilitate concrete and asphalt pavements, and many of the practices are well established. However, of recent origin are techniques that use thinner concrete overlays with shorter joint spacing. Field experience over more than 15 years with the thinner concrete overlays under a range of traffic and site conditions has demonstrated their viability as a cost-effective solution to extend the service life of deteriorated asphalt and concrete pavements. Concrete overlays can be designed for a range of traffic loadings to provide long performance lives, 15 to 40+ years, and to meet specific needs. Well-designed and well-constructed concrete overlays require low maintenance and can have low life-cycle costs. Thin concrete overlay applications include bonded and unbonded overlays over existing asphalt, concrete, and composite pavements. This paper provides a review of thin concrete overlays applied as bonded or unbonded overlays. In addition, three recent case studies are presented that illustrate the wide range of applications of thin concrete overlays.

• Corporate Authors:

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Tayabji, Shiraz
  • Gisi, Andrew
  • Blomberg, Jason
  • DeGraaf, Dan
• Conference:
  • National Conference on Preservation, Repair, and Rehabilitation of Concrete Pavements
  • Location: St. Louis Missouri, United States
  • Date: 2009-4-21 to 2009-4-24
• Publication Date: 2009

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References;
• Pagination: pp 87-99
• Monograph Title: Proceedings. National Conference on Preservation, Repair, and Rehabilitation of Concrete Pavements, St. Louis, Missouri, April 21-24, 2009

Subject/Index Terms

• TRT Terms: Asphalt pavements; Concrete overlays; Concrete pavements; Cost effectiveness; Pavement maintenance; Preservation; Rehabilitation (Maintenance); Service life
• Uncontrolled Terms: Thin overlays
• Subject Areas: Highways; Maintenance and Preservation; Pavements; I60: Maintenance;

Filing Info

• Accession Number: 01483828
• Record Type: Publication
• Files: TRIS, ATRI, USDOT
• Created Date: Jun 13 2013 5:01PM