Precast Concrete Panel Systems for Full-Depth Pavement Repairs. Field Trials

The use of precast slabs as an alternative to conventional cast-in-place repairs may be an effective means of reducing construction time, thereby minimizing user delay and travel costs while obtaining a long-lasting, durable repair. This report summarizes the 3-year study, "Field Trials of Concrete Pavement Product and Process Technology--Precast Concrete System for Rapid Repairs," in which precast slabs were used for joint repair and slab replacement on in-service Michigan and Colorado highways. Cast-in-place, full-depth patches were installed as controls. The report contains a summary of the relevant literature; summaries of the field trials and their findings regarding efficiency and durability; recommendations for precast panel installation; a sample distress documentation report; a presentation of construction guidelines; and a sample special provision specification developed as part of the study. Recommendations for consecutive slab repairs are to reduce slab length; use a slab thickness of 200 mm or greater; use dowels to connect precast panels to existing panels for joint flexibility and load transfer; maximize proximity of repair sections when planning and encourage multitasking during panel installation to reduce construction time. For isolated repairs, it is recommended that four dowel bars be place in the wheel path and provide an expansion cap at one end of the dowel bar to accommodate slab movement due to environmental loading and prevent closing of the joint.

• Record URL:
  • http://www.fhwa.dot.gov/pavement/concrete/pubs/hif07019/07019.pdf
• 
• Supplemental Notes:
  • Performed under the Concrete Pavement Technology Program.
• Corporate Authors:

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Michigan State University, East Lansing

  Department of Civil and Environmental Engineering
  East Lansing, MI  United States  48824-1226
• Authors:
  • Buch, Neeraj
• Publication Date: 2007-2

Language

• English

Media Info

• Media Type: Web
• Edition: Final Report
• Features: Appendices; Figures; Tables;
• Pagination: 84 p

Subject/Index Terms

• TRT Terms: Concrete pavements; Dowels (Fasteners); Durability; Field studies; Guidelines; Joints; Literature reviews; Panels; Pavement distress; Pavement maintenance; Precast concrete; Recommendations; Repairing; Specifications
• Geographic Terms: Colorado; Michigan
• Subject Areas: Design; Highways; Maintenance and Preservation; Materials; Pavements; Research; I22: Design of Pavements, Railways and Guideways; I32: Concrete; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 01079523
• Record Type: Publication
• Report/Paper Numbers: FHWA-HIF-07-019
• Contract Numbers: BAA DTFH61-03-R-00003
• Files: TRIS, ATRI, USDOT
• Created Date: Oct 22 2007 10:15AM