Kansas Experience with Drainable Portland Cement Concrete Pavements

Pavement drainage is critical to performance of the Portland Cement Concrete Pavements (PCCP). Since 1988, the Kansas Department of Transportation (KDOT) has been using a drainable base layer as an option for the PCC pavements. However, the majority of PCC pavements in Kansas do not incorporate a drainable base because the traffic volume is low to medium. This paper discusses Kansas Department of Transportation (KDOT) experience with drainage of six in-service PCCP projects. Four of these projects were the experimental sections chosen from the Kansas SPS-2 project located on Interstate route 70 (I-70) and incorporate a permeable asphalt treated base (PATB) layer with edge drains. The other two projects, US-50 and US-400, had daylighted drainable base layers. These projects also incorporated some alternative drainage designs and instrumentation for drainage monitoring. Both daylighted and partially daylighted drainage systems of various configurations can perform as well as a system using a positive drainage system of pipes and outlets. Both systems do not have the inherent problems of a pipe system clogging. However, the winter freeze condition can affect the outflow of water from the base and this condition may not be desirable in harsh freezing environments. On the SPS-2 project, the drainable PCC sections with permeable asphalt treated base (PATB) have performed the best. These sections were built smoother and remained so after 13 years of service. Kansas experience has also reinforced the need for an acceptable separator layer in the drainable PCC design.

Language

  • English

Media Info

  • Media Type: CD-ROM
  • Features: Figures; Photos; References; Tables;
  • Pagination: 19p
  • Monograph Title: TRB 86th Annual Meeting Compendium of Papers CD-ROM

Subject/Index Terms

Filing Info

  • Accession Number: 01044092
  • Record Type: Publication
  • Report/Paper Numbers: 07-2192
  • Files: TRIS, TRB
  • Created Date: Feb 8 2007 6:52PM