Reconstruction and Widening of David-Boquete Highway in Panama Using Foamed Asphalt

The David to Boquete project involved the widening of an existing two lane road into a four lane highway between the city of David and the town of Boquete in western Panama, a distance of 38.8 km (24.1 miles). The new four lane highway was built with the two southbound lanes constructed on new alignment and 32.8 km (20.4 miles) of the two northbound lanes largely constructed using the existing two lane roadway. The Ministry of Public Works of Panama (MOP) awarded a Design-Build contract to build the four lane roadway to Constructora Urbana S.A. (CUSA) in 2010. The original design build concept for the rehabilitation of the existing pavement was to mill and overlay the existing pavement, and widen the shoulders. During construction the original plan to mill and resurface the old roadway was changed to consider recycling the existing pavement in place as a bound base and surfacing with a hot mixed asphalt pavement. A number of in-place recycling options were considered and a foamed asphalt reclaiming process was selected because of the extremely wet environment in which the project was situated. The paper describes the site conditions, design approach and the construction procedures used in recycling the existing pavement in place to produce the bound base for a new pavement for a major four lane reconstruction project in Panama.

  • Supplemental Notes:
    • This paper was sponsored by TRB committee AFD70 Pavement Rehabilitation. Alternate title: Reconstruction and Widening of David to Boquete Highway in Panama Using Foamed Asphalt.
  • Corporate Authors:

    Transportation Research Board

    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Authors:
    • Fabrega, Carlos
    • Pinzon, Dicky
    • Jackson, Newton
  • Conference:
  • Date: 2015

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Maps; Photos; References; Tables;
  • Pagination: 13p
  • Monograph Title: TRB 94th Annual Meeting Compendium of Papers

Subject/Index Terms

Filing Info

  • Accession Number: 01550358
  • Record Type: Publication
  • Report/Paper Numbers: 15-2965
  • Files: PRP, TRIS, TRB, ATRI
  • Created Date: Jan 21 2015 11:29AM