Forensic Evaluation - Southwest Anthony Henday Drive's Portland Cement Concrete Pavement

A 14-kilometre-long section of Portland cement concrete (PCC) pavement along Southwest Anthony Henday Drive (SWAHD) in Edmonton, Alberta with was opened to traffic in 2006. Since opening, the roadway has experienced a significant increase in traffic volume. The PCC pavement consists of a doweled jointed plain concrete and presently the performance of the pavement is poor relative to expectations of a longer life pavement. The condition of the pavement is fair to poor, with smoothness (ride quality) a major concern. The pavement exhibited joint sealant loss soon after construction and, six years after construction, major rehabilitation activities were undertaken to address various areas exhibiting distresses and ride quality issues. The completed rehabilitation activities included partial and full depth panel replacement, cross stitching of longitudinal cracks, dowel bar placement at mid-panel transverse cracks, slab jacking, and diamond grinding. Despite the rehabilitation activities, ride quality has continued to be an issue and ongoing maintenance activities have been required to address cracked panels, drainage along the roadway, and joint resealing. Subsequently, additional investigations were undertaken in 2017. This paper presents the forensic methodology used to investigate the causes of the premature development of distresses and poor ride quality issues. Site inspections, geotechnical borehole drilling, pavement coring, ground penetrating radar (GPR) testing to determine the location of the dowel bars and presence of voids underneath the pavement, analysis of Laser Crack Measurement System (LCMS) data, historical pavement smoothness data, Falling Weight Deflectometer (FWD) data, drainage analysis, profile analysis using LiDAR data, along with other analyses, were undertaken for this investigation. The results of the additional investigations are presented along with potential causes of the poor performance and recommendations for rehabilitation and rehabilitation sequencing.


  • English

Media Info

  • Media Type: Web
  • Pagination: 1 PDF file, 973 KB, 21p.
  • Monograph Title: Transportation Association of Canada and ITS Canada 2019 Joint Conference and Exhibition

Subject/Index Terms

Filing Info

  • Accession Number: 01730381
  • Record Type: Publication
  • Source Agency: Transportation Association of Canada (TAC)
  • Files: ITRD, TAC
  • Created Date: Feb 4 2020 2:59PM