Climate Change Implications for Asphalt Binder Selection in Pavement Construction across Ontario

The climate in Canada has warmed and will continue to warm faster in the future, which will result in more intense and frequent temperature variations. Asphalt binder selection based on the Superpave performance grade (PG) system relies on historic climatic conditions in relation to the expected in-service temperature range of the flexible pavement. In view of climate change, it is crucial to investigate the extent to which pavement surface temperatures will be affected by ambient conditions of the future in order to assess the relative impact on the appropriate PG for more durable and resilient pavement construction. In this study, the latest long-term pavement performance (LTPP) model was used to determine the asphalt pavement surface temperatures. For different representative concentration pathways (RCP), the relative impact of climate change on pavement temperature extremes and thereby appropriate PG to meet projected pavement temperatures was assessed using the LTPP models. The results of this study indicate that in the future, climate variations will cause changes to asphalt binder grades across the examined locations in Ontario, which depend on the severity of the projected warming. This research offers useful suggestions that can be incorporated by the road agencies and designers towards adaptation of pavement construction materials suitable to the changing climate.

• Record URL:
  https://doi.org/10.1061/9780784483541.027
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784483541
• Supplemental Notes:
  • © 2021 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Basit, A
  • Shafiee, M
  • Bashir, R
  • Perras, M A
• Conference:
  • International Conference on Transportation and Development 2021
  • Date: 2021-6-8 to 2021-6-10
• Publication Date: 2021

Language

• English

Media Info

• Pagination: pp 289 - 301
• Monograph Title: International Conference on Transportation and Development 2021: Transportation Planning and Development

Subject/Index Terms

• TRT Terms: Asphalt pavements; Binders; Climate change; Flexible pavements; Pavement performance; Paving; Superpave; Surface temperature
• Identifier Terms: Long Term Pavement Performance (LTPP) Program
• Geographic Terms: Ontario (Canada)
• Subject Areas: Construction; Environment; Highways; Materials; Pavements;

Filing Info

• Accession Number: 01777599
• Record Type: Publication
• ISBN: 9780784483541
• Files: TRIS, ASCE
• Created Date: Jul 23 2021 3:26PM