100 Percent Asphalt Paving, Our Experience

Every year, Hot Mix Asphalt (HMA) roadways are rehabilitated by milling and replacing with new HMA. As a result of this practice, a tremendous amount of Reclaimed Asphalt Pavement (RAP) is created. The Ministry of Transportation Ontario (MTO) currently allows RAP to be recycled into new HMA, but with restriction on percentage. On average, an individual asphalt pavement in Ontario will contain 17 percent of RAP. In an effort for Ontario to have the greenest roads in North America, MTO increased allowable RAP to 20 percent in surface courses and up to 40 percent in binder courses. Recycling helps road agencies to achieve their goal of a sustainable "green" road transport system by reducing waste and resource consumption yielding environmental and economic benefits. McAsphalt Industries has found that specifically-engineered emulsions can provide robust 100 percent RAP materials targeted for secondary highways to yield significant economic and environmental benefits. Specifically, the use of rejuvenated 100 percent RAP as paving material on a secondary road in Northern Ontario, without the need of an HMA overlay, was investigated. This paper presents our findings examining properties and performance of 100 percent RAP mixtures from both the laboratory and field perspective. (A) For the covering abstract of this conference see ITRD record number 201402RT334E.

Language

  • English

Media Info

  • Pagination: p. 207-18
  • Monograph Title: Proceedings of the Fifty-Eighth Annual Conference of the Canadian Technical Asphalt Associatio (CTAA): St. John's, Newfoundland and Labrador, November 2013

Subject/Index Terms

Filing Info

  • Accession Number: 01518090
  • Record Type: Publication
  • Source Agency: Transportation Association of Canada (TAC)
  • Files: ITRD, TAC
  • Created Date: Mar 11 2014 11:01AM