When success is a bind

The bituminous binder that holds aggregates together is susceptible to degradation from trafficking, weathering and oxidisation. The condition of the UK road network is considered poor. Conventional road repair involves excavation and removal of the road surface around the defect, the removal of the asphalt waste from the site, and the importation of new material from an asphalt plant. This can cause hand/arm vibration syndrome (white finger) and has negative environmental effects. A sustainable alternative methodology is infrared asphalt repair, which involves the controlled heating of the asphalt for approximately 8 minutes, softening the material to the point where the wearing course can be turned over with a shovel. A heat-stable emulsion is then sprayed and raked into the heated material, reengineering the bituminous binder. Recycled asphalt is added to make up any lost volume and the material is compacted, placing emphasis on the edges of the repair. The Rhinopatch repair system is completed with a surface treatment of a gilsonite-rich preservation material. The process is relatively quiet and can be used at night.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00396303
• Authors:
  • Caldwell, N
• Publication Date: 2006-5-18

Language

• English

Media Info

• Pagination: p19
• Serial:
  • SURVEYOR
  • Volume: 194
  • Issue Number: 5878
  • Publisher: Hemming Group, Limited
  • ISSN: 0039-6303

Subject/Index Terms

• TRT Terms: Binders; Bitumen; Environment; Highways; Maintenance; Recycling; Repairing
• Geographic Terms: United Kingdom
• ITRD Terms: 4948: Binder; 4963: Bitumen; 2455: Environment; 2755: Highway; 3847: Maintenance; 4573: Recycling (mater); 3635: Repair; 8119: United Kingdom
• Subject Areas: Energy; Environment; Highways; Maintenance and Preservation; Materials; I15: Environment; I31: Bituminous Binders and Materials; I60: Maintenance;

Filing Info

• Accession Number: 01034106
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Oct 6 2006 2:20PM