Disc Shaped Compact Tension (DCT) Specifications Development for Asphalt Pavement

The disc-shaped compact tension (DCT) fracture energy test has been shown to discriminate between asphalt mixtures with respect to their thermal cracking potential. This research refines the DCT fracture energy testing procedure, identifies needed adjustments in asphalt mixture to increase fracture energy, determines the suitability of DCT-test-based parameters as indicators of reflective cracking, and proposes threshold values to lower the potential for premature reflective cracking in asphalt overlays. A number of recommendations have been developed to implement outcomes of this research as well as to fill knowledge gaps identified through this study.

• Record URL:
  http://www.dot.state.mn.us/research/reports/2019/201924.pdf
• 
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/61813
• Corporate Authors:

  University of New Hampshire, Durham

  Department of Civil and Environmental Engineering
  Durham, NH  United States 

  University of Minnesota, Duluth

  Department of Civil Engineering, 1405 University Drive
  Duluth, MN  United States  55812

  Minnesota Department of Transportation

  Office of Research & Innovation
  395 John Ireland Boulevard, MS 330
  St. Paul, MN  United States  55155-1899
• Authors:
  • Dave, Eshan V
  • Oshone, Mirkat
  • Schokker, Andrea
  • Bennett, Chelsea E
• Publication Date: 2019-6

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; Maps; Photos; References; Tables;
• Pagination: 135p

Subject/Index Terms

• TRT Terms: Asphalt mixtures; Asphalt pavements; Cracking; Fracture tests; Overlays (Pavements); Reflection cracking; Specifications; Test procedures; Thermal degradation
• Subject Areas: Highways; Maintenance and Preservation; Materials; Pavements;

Filing Info

• Accession Number: 01711623
• Record Type: Publication
• Report/Paper Numbers: MN/RC 2019-24, CTS #2015015
• Contract Numbers: (C) 99008 (wo) 162
• Files: NTL, TRIS, ATRI, STATEDOT
• Created Date: Jul 22 2019 7:56AM