Cold recycling processes for bitumen emulsion, technical appraisal of in-situ performance and advantages on environmental impacts.

Today, protecting the environment, reusing natural resources and endeavouring to make our lives better have become major development priorities. Increased respect for the environment means saving non-renewable resources and evaluating the materials in the existing roadway, while limiting the need to use new materials. Since 1982, when the first project in France was carried out on the East crossway in Montpellier, the Colas Group has been developing in situ bitumen emulsion recycling. In all it has applied nearly 5 million sq. m. From a technical standpoint, findings from long-term roadway monitoring programs (5 to 10 years) carried out by LCPC, France and by the company's own technical department highlight the efficiency of the technique and its excellent behaviour, even under heavy traffic. By preserving the environment, in situ bitumen emulsion recycling plays an active role in reducing energy consumption and greenhouse gas emissions. After a brief summary of the Colas Group's in situ bitumen emulsion recycling techniques, a technical assessment is made of performance and in situ behaviourusing data collected on roadways and in laboratories. An environmental assessment is then made using life cycle analysis on a real case involving aproject on a road in the southwestern section of France. In this case, assessments are made of the environmental impacts of conventional roadway reinforcement and of in place bitumen emulsion recycling and compared in terms of energy consumption and greenhouse gas emissions. For the covering abstract see ITRD E157233

• Authors:
  • BALLIE, M
  • BERTAUD, M
• Publication Date: 2008

Language

• English

Media Info

• Pagination: 11p
• Serial:
  • PROCEEDINGS OF THE 4TH EURASPHALT AND EUROBITUME CONGRESS HELD MAY 2008, COPENHAGEN, DENMARK
  • Publisher: EUROPEAN ASPHALT PAVEMENT ASSOCIATION (EAPA)

Subject/Index Terms

• TRT Terms: Bitumen; Bituminous mixtures; Cold in-place recycling; Conferences; Emulsions; Evaluation; Highways; Recycling; Repairing; Structural strengthening
• Geographic Terms: France
• ITRD Terms: 4963: Bitumen; 4993: Bitumen emulsion; 4967: Bituminous mixture; 4591: Cold in situ recycling; 8525: Conference; 9020: Evaluation (assessment); 8036: France; 2755: Highway; 5950: Life cycle; 3635: Repair; 3096: Strengthening (pavement)
• Subject Areas: Data and Information Technology; Highways; Maintenance and Preservation; I31: Bituminous Binders and Materials; I52: Construction of Pavements and Surfacings; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 01220246
• Record Type: Publication
• Source Agency: TRL
• Files: ITRD
• Created Date: Oct 27 2010 10:04AM