Evaluation of Low Temperature Cracking Resistance of Asphalt Mixes in Ontario by Conducting Disk-Shaped Compact Tension (DC(T)) and Semi-Circular Bend (SCB) Tests

The low temperature cracking resistance of five surface course asphalt mixes paved in Ontario were investigated by conducting two fracture mechanics-based tests; Disk-Shaped Compact Tension (DC(T)) and Semi-Circular Bend (SCB) tests, according to ASTM D7313 and AASHTO TP105 standards, respectively. DC(T) and SCB testing were conducted at three temperatures, namely -18 -24, and -30°C. Furthermore, the recovered Asphalt Cement (AC) obtained from the asphalt mixes was tested according to AASHTO R29 in order to find their continuous low temperature grades. The Analysis of Variance (ANOVA) and Tukey's Honestly Significant Difference (HSD) test using the Minitab® software were utilized to statistically evaluate the results of DC(T) and SCB tests. The statistical analysis of the fracture energy values from DC(T) and SCB tests revealed that there is not a statistically significant difference between the fracture energy results of the two tests. Moreover, there is a good correlation between fracture energies of DC(T) and SCB tests at -18 and -24 °C. Furthermore, the results show that there is a correlation between the fracture energy obtained from DC(T) test at three testing temperatures and continuous low temperature grades.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9781990149009
• Corporate Authors:

  Canadian Technical Asphalt Association

  174-2417 Main Street
  West Kelowna, British Columbia  Canada  V4T 2H8
• Authors:
  • Salehi-Ashani, S
  • Tighe, Susan L
• Conference:
  • Proceedings of the Sixty-Fifth Annual Conference of the Canadian Technical Asphalt Association (CTAA) - Cyberspace, November 2020
  • Date: 2020-11-16 to 2020-11-19
• Publication Date: 2020-11-30

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 365-377
• Monograph Title: Proceedings of the Sixty-Fifth Annual Conference of the Canadian Technical Asphalt Association (CTAA) - Cyberspace, November 2020

Subject/Index Terms

• ITRD Terms: 4967: Bituminous mixture; 8018: Canada; 9116: Cold; 8525: Conference; 5211: Cracking; 4714: Mix design; 5544: Strength (mater); 6288: Test method
• Subject Areas: I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 01910341
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• ISBN: 9781990149009
• Files: ITRD, TAC
• Created Date: Feb 28 2024 2:11PM