Recently, the NPCA Precast Concrete Pavement Committee recognized the need to identify and compile practical and authoritative information on jointed precast concrete pavement (JPrCP). Before that point, available information was generally limited to tech briefs on various pilot projects, papers presented at technical conferences and technical presentations conducted by a few providers of specific precast pavement systems.
Most of the early information available was descriptive and was typically offered in reports and presentations describing elementary patching and lane replacement projects. By 2010, the use of precast panels for rapid repair of concrete pavement had evolved to include installations on curved alignments (ramps), non-planar highways, bridge approach slabs, intersections, airfield taxiways and many other specialized applications. The existing information did not offer appropriate guidance to designers, owners, fabricators and installers regarding the design, fabrication and installation of precast pavement panels in these situations.
As a result, the committee petitioned two leading precast pavement expert practitioners to create a photo- and schematic-rich manual that provides information on topics including:
- JPrCP systems and definitions
- Design of JPrCP
- Where JPrCP can be used most advantageously
- Shop drawing preparation
- Installation details that apply to all systems
- Installation details that apply to specific systems
- Project execution
- Maintenance of completed installations
The committee is proud to now publish the 13-chapter Manual for Jointed Precast Concrete Pavement. The publication coincides with the recent installation of the 100th lane mile of precast pavement across the U.S. and Canada, emphasizing the growing need for an industry guidance document covering the topics mentioned above.
As precast pavement continues to evolve and more efficient designs and methods are developed, so too will the manual. The committee’s goal is to keep the manual current and relevant, updating information as the need arises in future years.