Insitu cold recycling: experiences of the Department of Road Transport

In-situ cold recycling (ISCR), is the recycling of existing asphalt and granular pavement materials, at ambient temperatures, in place on the roadway. Equipment has recently been developed in Australia which performs ISCR by milling the existing pavement to a maximum depth of 100mm, adding bitumen emulsion and any water required to the milled material in a pugmill and then spreading the mixed material by paver screed, all in one pass. The process can be performed on both granular and asphaltic pavements or any combination of both. Trials conducted by the Dept of Road Transport have shown the process to have limitations, in particular when used to stabilise a granular pavement. However as a rejuvenator of asphaltic concrete the process does have potential, although at this stage further investigations and monitoring of the trial pavement is required before final conclusions can be made. The paper provides an account of the trials, an evaluation of the process, and compares costs with alternative rehabilitation treatments.

• Authors:
  • Crosley, D
• Conference:
  • South Australian Local Government Engineering Conference, 1992, Adelaide, Australia
• Publication Date: 1992-3

Language

• English

Media Info

• Pagination: 20p
• Monograph Title: Engineering and the environment: local government engineering conference - Adelaide, 18-19 March 1992

Subject/Index Terms

• TRT Terms: Bituminous pavements; Cold mix paving mixtures; Construction management; Field tests; Granular soils; Maintenance equipment; Pavement components; Pavement layers; Recycled materials
• ATRI Terms: Asphalt; Bituminous pavement; Cold mix; Field test; Granular; Maintenance equipment; Maintenance method; Pavement layer; Pavement materials; Recycling
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01432789
• Record Type: Publication
• Source Agency: ARRB
• Files: ATRI
• Created Date: Aug 24 2012 5:12PM