HIGHWAY TECHNET VIRTUAL EXPO PAVEMENTS INDEX TE-30 High Performance Concrete Pavements (HPCP) A Stiff Upper Limit
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The immediate goal of the HPCP Program is to construct some selected highway projects to explore the applicability of innovative concrete pavement design and construction concepts in the United States. The long-range goal is improvement of portland cement concrete pavement design, materials, and construction technology and equipment through innovation, research, training, and evaluation of promising pavement technology developments m other countries.
Background In 1993, a 1.6 km (1-mile) test section was constructed on northbound I-75 (Chrysler Freeway) in downtown Detroit, Michigan. The design and construction procedures of the experimental pavement section were similar to those used in Germany and Austria. Michigan's standard pavement section was used on an adjacent portion of northbound I-75 for comparison purposes. These sections will be monitored for five years and annual evaluation reports will be prepared.
Broad, functional or performance criteria have been established, rather than a prescription-oriented definition such as done with HPC-Structures. Each State Highway Agency (SHA) can choose the criteria considered appropriate for improving the performance of their concrete pavements. The suggested innovation areas for this program included:
SHAs should utilize this list in formulating HPCP projects instead of prescribed engineering criteria established from the outside which may discourage innovation. Planned projects could then be modified to incorporate some of the innovation areas listed above. The HPCP implementation plan was the restructured by identifying specific types of projects and soliciting specific States. Target areas included: joint sealing alternatives and alternate load transfer devices; the use of more durable concrete mix designs and surface finishing techniques, and more cost effective materials utilization such as widened lanes, trapezoidal cross sections and two-lift construction. twelve projects were received for consideration under the HCPC program for fiscal year 1996. Nine projects were approved for funding. Five projects were split funded between FY 96 and FY 97.
Construction of the candidate projects, once approved, are handled in accordance with existing federal-aid procedures. Evaluation of the projects are conducted by work orders with the various State agencies.
Future Plans Telephone and onsite assistance, speakers, and mobile laboratory. Report on the 1992 U.S. Tour of European Concrete Highways, 1992, and Summary Report of Followup Tour of Germany and Austria, 1993. Both reports are available through the Office of Technology Applications. A videotape on the Michigan project is available from the Office of Technology Applications.
HIGHWAYTECHNET VIRTUAL EXPO PAVEMENTS INDEX U.S. Department of Transportation Federal Highway Administration
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