Evaluating the effects of concrete pavement curling and warping on ride quality.

Details

• Creators:
  Merritt, David K. ; Chang, George K. ; Torres, Helga N. ; Mohanraj, Kiran ; Rasmussen, Robert O.
• Corporate Creators:
  Transtec Group, Inc.
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  Concrete Pavements Curling Evaluation And Assessment Pavement Joints Ride Quality Road Construction Roughness Warpage
• Publication/ Report Number:
  CDOT-2015-07
• Resource Type:
  Tech Report
• Geographical Coverage:
  Colorado
• Corporate Publisher:
  Colorado. Dept. of Transportation. Applied Research and Innovation Branch
• Abstract:
  Construction of a jointed concrete pavement on US 34 near Greeley, Colorado in 2012 led to an investigation of slab curling
  
  and warping that appeared to be contributing to undesirable levels of pavement roughness. Specifically, the westbound lanes
  
  that were constructed in July appeared to exhibit significantly higher roughness than the eastbound lanes that were constructed
  
  in September. Furthermore, smoothness testing by the contractor at three different times of the day on one of the westbound
  
  lanes revealed significant differences in roughness values depending on the time of day. In response, CDOT initiated the
  
  investigation under this study to determine the effects of slab curling and warping on ride quality for the US 34 project with
  
  the expectation that the findings from this study can also be applied to jointed concrete pavement projects in general. The
  
  outcomes of this study are recommendations for improvements in construction practices to help minimize the effects of
  
  curling and warping on jointed concrete pavement ride quality as well as recommendations for the collection of ride quality
  
  data for acceptance.
  
  Implementation
  
  Implementation recommendations include potential modifications to concrete pavement construction practices and/or
  
  specifications, particularly for hot weather paving, as well as recommendations for modifications to the collection of
  
  pavement smoothness acceptance data for jointed concrete pavements. The recommendations for smoothness acceptance data
  
  collection can be implemented on pilot projects or as shadow specifications in the coming construction seasons. After each
  
  construction season, the recommended procedures can be further evaluated before being included in the Standard
  
  Specifications. Recommendations for construction practices/specifications are less substantial and may only require minor
  
  modifications to standard practices and specifications.
  
  
• Format:
  PDF
• Funding:
  414.02
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:fde6861a924028bd0411d22ddbb10dfac754aaf453388602c624172785fae942
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/29470/dot_29470_DS1.pdf
• File Type:
  [PDF - 3.02 MB ]