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Experience with Full Depth Reclamation/stabilization Using Expanded Asphalt (foamed Bitumen) in Edmonton, Alberta
| Content Provider | Semantic Scholar |
|---|---|
| Author | Donovan, Hb Stefaniw, R. |
| Copyright Year | 2003 |
| Abstract | 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. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://conf.tac-atc.ca/english/resourcecentre/readingroom/conference/conf2003/pdfs/donovan.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
