Performance assessment of Wisconsin's whitetopping and ultra thin whitetopping projects.

Details

• Alternative Title:
  Performance assessment of Wisconsin's whitetopping and ultra-thin whitetopping projects
• Creators:
  Wen, Haifang ; Li, Xiaojun ; Martono, Wilfung
• Corporate Creators:
  Washington State University
• Corporate Contributors:
  Wisconsin. Dept. of Transportation. Research Coordination Section ; Wisconsin Highway Research Program
• Subject/TRT Terms:
  Evaluation And Assessment Overlays (Pavements) Pavement Maintenance Pavements--Maintenance And Repair Pavements--Overlays Performance Measurement
• Publication/ Report Number:
  10-03
• Resource Type:
  Tech Report
• Geographical Coverage:
  Wisconsin
• Edition:
  Final report; Oct. 2007-Mar. 2010.
• Corporate Publisher:
  Wisconsin Highway Research Program
• Abstract:
  Whitetopping overlay is a concrete overlay on the prepared existing hot mix asphalt (HMA) pavement to
  
  improve both the structural and functional capability. It’s a relatively new rehabilitation technology for
  
  deteriorated HMA. If the slab thickness is less or equal to 4 in., it is referred to as ultra-thin whitetopping (UTW).
  
  “WT” is used to refer to concrete overlay thicker than 4 in. In this research, the term “whitetopping” is used to
  
  refer to both WT and UTW in general.
  
  The primary objectives of this study are to catalog the whitetopping (WT) and UTW projects in
  
  Wisconsin, document pertinent design and construction elements, assess performance and estimate a service
  
  life of these projects. A comprehensive literature review was performed. A database of the WT and UTW
  
  projects was established covering 18 projects built from 1995 to 2007 in Wisconsin.
  
  The performance of these WT and UWT projects were assessed, by mean of shear strength tests on
  
  field cores, falling weight deflectometer (FWD) tests on selected projects, and field distress survey on in-service
  
  projects. FWD backcalculation methods for WT and UTW pavements were studied and a Critical Distance
  
  Method was proposed and utilized for UTW pavement. Fatigue life was analyzed using 18kip, 22kip and 26kip
  
  single axle load level. Performance assessment was conducted using both Pavement Condition Index (PCI) and
  
  Pavement Distress Index (PDI). The performance of whitetopping projects in Wisconsin was found comparable
  
  to that in other states. Whitetopping overlay thickness, joint spacing and pavement age were found to have
  
  significant effects on pavement performance.
  
  
• Format:
  PDF
• Funding:
  WHRP Project 0092-08-10
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:4e1a04b65e5bbef3f123ba5b37e510fcb23c7f37845aa3d98bfbb774afb04a06
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/17974/dot_17974_DS1.pdf
• File Type:
  [PDF - 6.74 MB ]