Chip Sealing Systems: Improving Early Age Chip Retention

A number of solutions aiming at better chip retention have been tried over the years, such as using quick-set polymer-modified emulsions, using smaller and cleaner chips or modifying certain aspects of construction practices. This paper is intended to take an in-depth and more systematic look at various technical aspects that can have an impact on improving early chip retention by an asphalt emulsion. A group of asphalt emulsions have been selected for this laboratory study, containing both anionic and cationic types and having different types of polymer modifications. Curing of the emulsions is studied by assessing the development of film strength in the binder layer by rheological measurements and by the Frosted Marble Cohesion test. Subsequently, chip retention on a variety of stone types is assessed by means of the Sweep Test for Surface Treatments. The outcome indicates that the CRS type emulsions and certain polymer systems show advantages in improving early chip retentions.

• Corporate Authors:

  International Society for Asphalt Pavements

  4711 Clark Avenue, Suite G
  White Bear Lake, MN  United States  55110
• Authors:
  • KUCHAREK, A
  • DAVIDSON, K
  • Croteau, JM
• Conference:
  • 10TH INTERNATIONAL CONFERENCE ON ASPHALT PAVEMENTS - AUGUST 12 TO 17, 2006, QUEBEC CITY, CANADA
• Publication Date: 2006

Language

• English

Media Info

• Media Type: Print
• Pagination: p. vol1,171-81
• Monograph Title: 10th International Conference on Asphalt Pavements - August 12 to 17, 2006, Quebec City, Canada

Subject/Index Terms

• TRT Terms: Bitumen; Chippings; Conferences; Emulsions; Seal coats
• Geographic Terms: Canada
• Subject Areas: Construction; Highways; Pavements; I23: Properties of Road Surfaces; I52: Construction of Pavements and Surfacings;

Filing Info

• Accession Number: 01084453
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• Files: TAC
• Created Date: Jan 16 2008 9:06AM