Canadian Usage and Practices for Evaluating Warm-Mix Asphalt Moisture Susceptibiliity

Warm Mix Asphalt (WMA) technology is gaining more acceptance by transportation agencies in Canada due to the pressures from environmental agencies and environmental acts to reduce Green House Gas (GHG) emissions generated by production and placement of paving mixtures. However, WMA technology has certain functional considerations, namely moisture susceptibility, that need to be addressed in order to ensure it meets performance requirements in addition to providing environmental benefits. To identify possible gaps in the current understanding and performance of WMA, a Canada-wide survey has been prepared at the Centre for Pavement and Transportation Technology (CPATT) located at the University of Waterloo to document the Canadian state-of-the-art related to WMA technologies. This paper presents the results of this survey on the preferred practices conducted by various Canadian transportation agencies. Furthermore, these results are compared with the most recent survey of the United States Departments of Transportation (DOTs) and industry conducted as part of the National Cooperative Highway Research Program (NCHRP) project 09-49.

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• Supplemental Notes:
  • This paper was sponsored by TRB committee AFK40 Standing Committee on Characteristics of Asphalt-Aggregate Combinations to Meet Surface Requirements. Alternate title: Canadian Usage and Practices for Evaluating Warm Mix Asphalt Moisture Susceptibiliity.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Varamini, Sina
  • Tighe, Susan L
• Conference:
  • Transportation Research Board 95th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2016-1-10 to 2016-1-14
• Date: 2016

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 12p
• Monograph Title: TRB 95th Annual Meeting Compendium of Papers

Subject/Index Terms

• TRT Terms: State of the art; Surveys; Warm mix paving mixtures
• Uncontrolled Terms: Moisture susceptibility
• Geographic Terms: Canada
• Subject Areas: Highways; Materials; Pavements; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01590178
• Record Type: Publication
• Report/Paper Numbers: 16-3854
• Files: PRP, TRIS, TRB, ATRI
• Created Date: Feb 14 2016 4:01PM