West Virginia smart road: early age behavior of doweled concrete pavements

This paper describes the instrumentation plans in West Virginia Smart Road. A section was heavily instrumented with a variety of sensors with the objective of monitoring the environmental and traffic loading response of dowel jointed concrete pavements. The section consists of 30 dowel jointed concrete slabs; each is 11 inches thick, 15 feet long and 12 feet wide. The slabs are placed on top of 4 inch asphalt-stabilized free-drainage base constructed over 6 inches compacted crushed stones. The instrumentation plan aims to collect data for several key performance parameters that will help evaluate the behavior of rigid pavement slabs during the early stages of construction and to generate noise-clean data suitable for validation of 3D finite element models of rigid pavements. Data from all sensors are being sampled every 20 minutes since concrete placement on September 7, 2001. Such data provide detailed time histories of the change in temperature gradient profile through the slab thickness, the strain profiles along the slab center lines on top and bottom of the slab, longitudinal and transverse joint opening as well as time-histories of bending moments and axial forces in the dowel bars. This paper presents analysis of the data collected and a study of the behavior of jointed slabs at an early stage after construction. In light of the analysis, the effect of construction techniques implemented by concrete paving contractors is also discussed.

Language

  • English

Media Info

  • Pagination: 51-62
  • Monograph Title: Proceedings of the International Conference on Highway Pavement Data, Analysis and Mechanistic Design Applications, September 7-10 2003, Columbus, Ohio: volume 2

Subject/Index Terms

Filing Info

  • Accession Number: 01390901
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Aug 23 2012 5:08AM