EXPERIENCE WITH FULL DEPTH RECLAMATION/STABILIZATION USING EXPANDED ASPHALT (FOAMED BITUMEN) IN EDMONTON, ALBERTA

Full Depth Recycling has been used in Western Canada since the early 1990s. The use of Expanded Asphalt (Foamed Bitumen) as a Stabilizer in the Full Depth Reclamation process has been used in Eastern Canada since the late 1990s. In 2001, Edmonton, Alberta, contracted for the construction of a demonstration project using Foamed Bitumen in the Full Depth Reclamation of 3 locations. A method specification for Foamed Bitumen Stabilization was developed for this project. The existing Hot Mix Asphalt (HMA), Oil mix, and Granular/Soil Cement bases were pulverized, had Foamed Bitumen added as a stabilizer, and were regraded and compacted. The process utilized in the demonstration projects also called for the addition of cement as active filler. Foamed Bitumen Stabilization was conducted to a depth of 200-225 mm. The Foamed Bitumen Stabilization operation proceeded well and offered a smooth, hard uniform surface suitable for accommodation of detour traffic, and in the case of 150 Avenue, was used as a running surface for a 6-week period. Generally, the stabilized base was overlaid with HMA wearing course following a 2-day curing period. This paper outlines the condition of the pavements prior to rehabilitation, basic design requirements, construction details, testing and evaluation completed, and post-construction observations and monitoring of the 3 demonstration projects.

• Supplemental Notes:
  • Full Conference Proceedings available on CD-ROM.
• Corporate Authors:

  Transportation Association of Canada (TAC)

  401-1111 Prince of Wales Drive
  Ottawa, Ontario  Canada 
• Authors:
  • Donovan, H B
  • Stefaniw, R
• Conference:
  • The Transportation Factor 2003. Annual Conference and Exhibition of the Transportation Association of Canada. (Congres et Exposition Annuels de l'Association des transport du Canada)
  • Location: St. John's, Newfoundland and Labrador
  • Date: 2003-9-21 to 2003-9-24
• Publication Date: 2003

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: 20p

Subject/Index Terms

• TRT Terms: Bitumen; Bituminous mixtures; Foamed materials; Full-depth reclamation; Hot mix asphalt; Pavement base course; Pavement components; Pavement design; Recycled materials; Rubberized bitumen; Stabilizers
• Geographic Terms: Canada
• Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00972274
• Record Type: Publication
• Files: TRIS, ATRI
• Created Date: Apr 2 2004 12:00AM