DOE CONFIRMS MAINTENANCE VALUE OF IN-SITU RECYCLING

This article presents the results of the first fully monitored UK trial of cold in-situ recycling using the foamed bitumen process. The project demonstrated that recycling produced a consistent material exhibiting good compaction properties. The recycled material's high deformation resistance enabled access to side roads and adjacent properties to be maintained throughout the contract. Deflection and deformation results indicate that the road will not need structural repair before a predicted cumulative traffic loading of 0.7 Msa (20 years). The hot rolled asphalt control sections are expected to last longer. The interim design curve suggests that foam bitumen recycled material should initially be limited to roads designed to carry no more than 2 Msa. The use of the foamed bitumen process was estimated to cost 76% of the conventional repair process used in the control sections. The process saved 60% of the energy that would normally have been used and the contract took 5.5 weeks to complete instead of the 8 weeks planned using conventional techniques.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3831968
• Corporate Authors:

  D.R. Publications Limited

  Faversham House, 111 St James Road
  Croydon, Surrey CR9 2TH,   England 
• Authors:
  • Hubert, P
• Publication Date: 1988-8

Media Info

• Features: Figures; Tables;
• Pagination: p. 16, 18
• Serial:
  • Highways
  • Volume: 56
  • Issue Number: 1940
  • Publisher: Alad Limited
  • ISSN: 0142-6168
  • Serial URL: http://www.highways-mag.co.uk

Subject/Index Terms

• TRT Terms: Cold in-place recycling; Cold weather; Costs; Deflection; Deformation; Field tests; Foamed asphalt; Pavements; Productivity; Recycling; Savings; Service life; Traffic loads
• Uncontrolled Terms: Design curves; Time savings
• Old TRIS Terms: Insitu methods; Pavement deflection; Pavement life; Resistance
• Subject Areas: Design; Finance; Freight Transportation; Highways; Maintenance and Preservation; Pavements;

Filing Info

• Accession Number: 00475931
• Record Type: Publication
• Files: TRIS, ATRI
• Created Date: Sep 30 1988 12:00AM