Truck-pavement-economic modeling and in-situ field test data analysis applications: volume 4: effects of slab slope and load transfer mechanisms on Portland cement concrete pavement

A jointed concrete pavement on I-490 near Rochester, NY, was reconstructed using three different dowel bar spacings in eastbound test sections. Two sections in the westbound direction were instrumented to monitor environmental strain, deflections, and pavement temperatures. Monitoring of the westbound sections was conducted at the time of construction, after 28 days of curing, and at various intervals over the next two years. The instrumentation included deep and shallow linear variable differential transducers (LVDTs) to measure displacements in the center and the corners of the slabs, thermocouples at four depths near the center and at one corner of the slab, and vibrating wire strain gages with built-in thermistors in the center and the left wheel path. Data were taken from the instruments at the time of construction, and at 37 days (after curing), 12 months, 16 months, and 28 months after construction. In measuring the pavement response, the FWD and LVDT data both indicated some loss of support that varied in response to changing temperature conditions. Of the three dowel bar arrangements, the E2 arrangement that used bars with the smallest cross-section and the narrowest spacing had the best load transfer efficiency.

• Corporate Authors:

  Ohio Research Institute for Transportation and the Environment (ORITE)

  Ohio University
  Athens, Ohio  United States 
• Authors:
  • Sargard, S
  • Morrison, J
• Publication Date: 2007-9

Language

• English

Media Info

• Pagination: 98p

Subject/Index Terms

• TRT Terms: Axle loads; Concrete pavements; Deflection; Dowels; Field tests; Joints; Mathematical models; Monitoring; Rolling contact; Slabs; Temperature; Trucks
• Uncontrolled Terms: Pavement technology
• ATRI Terms: Axle load; Concrete pavement; Deflection; Dowel; Field test; Joint; Modelling; Monitoring; Slab; Temperature; Truck; Vehicle pavement interaction
• Subject Areas: Bridges and other structures; Materials; Motor Carriers; Pavements; Vehicles and Equipment;

Filing Info

• Accession Number: 01384870
• Record Type: Publication
• Source Agency: ARRB
• Report/Paper Numbers: OH-2006/3D
• Files: ATRI
• Created Date: Aug 22 2012 6:20PM