Technical Report Documentation Page
|1. Report No.|
|2. Government Accession No||3. Recipient's Catalog No.
|4. Title and Subtitle
Precast Concrete Panel Systems for Full-Depth Pavement Repairs: Field Trials
|5. Report Date
|6. Performing Organization code:|
Neeraj Buch, Ph.D.
|8. Performing Organization Report No.
|9. Performing Organization Name and Address
Department of Civil and Environmental Engineering
Michigan State University
3546 Engineering Building
East Lansing MI 48824-1226
|10. Work Unit No.
|11. Contract or Grant No.
|12. Sponsoring Agency Name and Address|
Office of Pavement Technology
Federal Highway Administration
U.S. Department of Transportation
400 Seventh Street SW, Washington, DC 20590
|13. Type of Report and Period Covered
March 2003 – March 2006
|14. Sponsoring Agency Code
|15. Supplementary Notes
Performed under the Concrete Pavement Technology Program. Contracting Officer's Technical Representative: Sam Tyson, Office of Pavement Technology, Federal Highway Administration
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 placed 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.
|17. Key Words
precast concrete panels, concrete pavement rehabilitation, concrete pavement distresses
|18. Distribution Statement
No restrictions. This document is available to the public through the National Technical Information Service, Springfield, Virginia 22161.
|19. Security Classif. (of this report)|
|20. Security Classif. (of this Page)|
|21. No of Pages