Author's Closure: Comments on "Ontario's Strategy to Enhance Asphalt Cement Quality"

The original paper examined initial cracking performance of various pavement sections and evaluated the relationship between field cracking and test results for Extended Bending Beam Rheometer (ExBBR), Double Edge Notched Tension (DENT) test, and Multiple Stress Creep Recovery (MSCR). Some of te pavement sections were constructed as test sections with construction and material variables closely accounted for, while others such as the 2007 investigation and 2011 asphalt cement initiatives were not. Where not constructed as a controlled test section, results can always be debated. However, the overarching observation from all studies was that the poor quality of the asphalt cement was one of the main contributing factors to premature pavement cracking and that implementation of an enhanced specification was necessary. The ultimate goal remains to move towards a performance specification addressing cracking and overall durability. The authors of the original paper would like to acknowledge the commentary by Mr. Sandy Brown, Consulting Engineer in Toronto, Ontario. It is believed that the topic is important and such technical discussions are necessary to better understand the effect of asphalt cement quality on the performance of asphalt pavements. This paper provides our response to the comments in the same order as the commentary paper.

• Corporate Authors:

  Canadian Technical Asphalt Association

  ,   United States 
• Authors:
  • TABIB, S
  • MARKS, P
  • Bell, H
• Conference:
  • Proceedings of the Sixth-Second Annual Conference of the Canadian Technical Asphalt Association (CTAA): Halifax, Nova Scotia
• Publication Date: 2017

Language

• English

Media Info

• Media Type: Print
• Pagination: pp. 461-466.
• Monograph Title: Proceedings of the Sixth-Second Annual Conference of the Canadian Technical Asphalt Association (CTAA): Halifax, Nova Scotia

Subject/Index Terms

• TRT Terms: Bituminous mixtures; Conferences; Cracking; Mathematical analysis; Mix design; Test procedures
• Uncontrolled Terms: Quality
• Geographic Terms: Canada
• ITRD Terms: 6471: Analysis (math); 4967: Bituminous mixture; 8018: Canada; 8525: Conference; 5211: Cracking; 4714: Mix design; 9063: Quality; 6288: Test method
• Subject Areas: Data and Information Technology; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01668521
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• Files: ITRD, TAC
• Created Date: May 3 2018 3:19PM