Overview of the Design of Emulsion Based Seal Coating Systems Available in Canada and Abroad

Seal coat systems have been used in Canada and abraod for many decades. Seal coats are thin wearing courses made of superimposed layers of aggregate and bituminous binder. They may be used to restore the surface characteristics of existing roadways or to waterproof and preserve others. Seal coats form an impervious thin overlay over an existing bound or unbound material. There are two families of treatments: the chip seal and graded seal. Chip seals combine the application of a layer of calibrated chips onto a layer of rapir setting emulsion while the graded seals are systems that combine the application of dense/gap graded aggregate onto a layer of anionic high float emulsion. Each system may be applied as a single or as a multiple application. Parameters such as the traffic and the existing surface conditions must be taken into account in the design of a specific seal coat system for a given roadway. Field conditions such as ambient temperature, the time of the year, the sun/cloud conditions must be taken into account as well. This paper presents the seal coating technologies and a discussion on the state of the design practices of these surface treatments in Canada and abroad. The paper introduces new concepts related to the selection of seal coating systems, as well as emerging systems now available in North America.

• Corporate Authors:

  Polyscience Publications

  P.O. Box 1606, Station St Martin
  Laval, Quebec  Canada  H7V 3P8
• Authors:
  • Davidson, J K
  • Houston, G
  • Linton, P
  • Croteau, JM
• Conference:
  • Fiftieth Annual Conference of the Canadian Technical Asphalt Association (CTAA)
  • Location: Victoria British Columbia, Canada
  • Date: 2005-11-0 to 2005-11-0
• Publication Date: 2005

Language

• English

Media Info

• Media Type: Print
• Pagination: pp 363-377
• Monograph Title: Proceedings of the Fiftieth Annual Conference of the Canadian Technical Asphalt Association (CTAA) in Victoria, British Columbia, November 2005

Subject/Index Terms

• TRT Terms: Conferences; Seal coats; State of the art reports; Surfacing
• Geographic Terms: Canada
• Subject Areas: Design; Geotechnology; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials; I36: Aggregates;

Filing Info

• Accession Number: 01089041
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• Files: TAC
• Created Date: Feb 26 2008 11:16AM