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:
  • Overlays (Pavements)
  • Pavement maintenance
  • Evaluation and assessment
  • Performance measurement
  • Pavements--Overlays
  • Pavements--Maintenance and repair
• 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.
  More +
• Format:
  PDF
• Funding:
  WHRP Project 0092-08-10
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/17974/dot_17974_DS1.pdf
• File Type:
  [PDF - 6.74 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:4e1a04b65e5bbef3f123ba5b37e510fcb23c7f37845aa3d98bfbb774afb04a06