Crack Reduction Strategies on a Pavement Warranty Project (Interstate 25 at Fountain, Colorado)

Details

• Creators:
  Hutter, Werner
• Corporate Creators:
  Colorado. Department of Transportation
• Corporate Contributors:
  United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Asphalt pavements
  • Cracking
  • Fillers
  • Bituminous overlays
  • Depth
  • Hot mix asphalt
  • Interstate highways
  • Milling
  • Pavement cracking
  • Pavement performance
  More +
• Publication/ Report Number:
  CDOT-DTD-R-2003-5
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Colorado
• Edition:
  Final Report
• Corporate Publisher:
  Colorado. Department of Transportation
• Abstract:
  As part of a mandated pavement warranty pilot program, a four-mile segment of I-25 south of Fountain, Colorado was rehabilitated during the summer of 1998. The north and southbound lanes were overlaid with five inches of HBP under a warranty contract. Prior to the overlay, the roadway was milled to a depth of 1 inch over the entire project, with the exception of the first nine test section locations (approximately 3,600 feet) where the driving lane was milled an additional 1-1/2 inch depth (trench section) and after the specific treatments were applied, the trench was overlaid with HBP. Treatments consisted of eight crack prevention methods over the 2-1/2 inch (1-1/2 inch trench in a 1-1/2 inch milled section of the driving lane) as well as the standard 1-inch milled surface. Although a specially assigned Pavement Evaluation Team (PET) evaluated the project's performance, Research became involved in the performance evaluation for the three-year warranty period. The evaluation consisted of project inspection prior to construction, crack prevention treatments during construction, and the three -year post-construction evaluation. Findings confirmed that the least recurrence of cracks was noticed in the "trenched" section that had the additional 1-1/2 inch hot mix pavement. Furthermore, the majority of the recurrent cracking was observed after the first year, with additional cracking becoming visible after the third year.
• Format:
  PDF
• Funding:
  10.125
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/93361/dot_93361_DS1.pdf
• File Type:
  [PDF - 1.90 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:2e8d37e40e508cea62239c54238a6c323fb6bf057efdaeaef0bd071eed986f30f9e09f5ca145feb81a676eb852da3afa00c1c4ace6b9f3b86231591ce4deff95