Instrumentation and Field Testing of Thin Whitetopping Pavement in Colorado and Revision of the Existing Colorado Thin Whitetopping Procedure

Details

• Creators:
  Sheehan, Matthew J. ; Tarr, Scott M. ; Tayabji, Shiraz D.
• Corporate Creators:
  Construction Technology Laboratories Inc. (Illinois)
• Corporate Contributors:
  Colorado. Department of Transportation ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Instrumentation
  • Field tests
  • Construction
  • Rehabilitation
  • Performance
  • Asphalt
  • Laboratory tests
  • Whitetopping
• Publication/ Report Number:
  CDOT-DTD-R-2004-12
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Colorado
• Edition:
  Final Report
• Corporate Publisher:
  Colorado. Department of Transportation
• Description:
  This report summarizes the verification and revision of a thin whitetopping pavement mechanistic design procedure developed for the Colorado Department of Transportation. The original whitetopping procedure and design guidelines were developed during a 1998 study on thin whitetopping pavements in Colorado. This report includes information on the installation and construction of the test sections, instrumentation, field and laboratory testing, data acquisition, and data analysis. The revised Colorado thin whitetopping pavement design procedure provides improved predictions of whitetopping load responses, and therefore should also provide more accurate insights into longer-term performance of thin whitetopping pavements for highway applications. The successful development and revision of a second-generation thin whitetopping design procedure provides an additional level of confidence for designers and highway agencies when considering this rehabilitation technique. Two different procedures were developed to calculate the thickness. One is a mechanistic approach incorporating finite element program, ILLI-SLAB to predict critical concrete stresses and asphalt strains. The second method is an empirical approach, incorporating the number of expected equivalent 18-kip single axle loads (ESLA).
• Format:
  PDF
• Funding:
  21.00
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/93282/dot_93282_DS1.pdf
• File Type:
  [PDF - 2.97 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:95bf747dcdfb421c745787d74b3962df66044ba40612d8189fefa9322848e57ccaca775de1e2255a19598cd4d211aa81f023b2d901ca9279122922573f118044