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.
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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.
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Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Fabrega, Carlos
- Pinzon, Dicky
- Jackson, Newton
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Conference:
- Transportation Research Board 94th Annual Meeting
- Location: Washington DC, United States
- Date: 2015-1-11 to 2015-1-15
- 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
- TRT Terms: Construction management; Design build; Foamed asphalt; Hot mix asphalt; In-place recycling; Pavement design; Pavement widening; Reconstruction; Road construction
- Geographic Terms: Panama
- Subject Areas: Construction; Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials; I52: Construction of Pavements and Surfacings;
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