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In-situ recycling of the C41 road in Fife

In-situ recycling of the C41 road in Fife

Project to recycle existing 6m wide carriageway to a depth of 150mm - The insitu process involves firstly, the pulverisation of the existing carriageway to a depth of no more than 150mm, secondly, spreading and mixing in a cementitious powder (typically around 2%) to bind the material and finally laying the recycled Hydraulically Bound Material layer through a paver to form a strengthened rejuvenated base/binder course. 

Throughout the operation the materials are graded and compacted to return the recycled layer back to required finish levels before an asphalt surfacing or surface  dressing is applied.

Benefits of the Project:

  • Faster contract completion - as much as 60% quicker than other repair and maintenance methods. 4,500t removed, recycled and replaced over 3 days.
  • Over 1,600t laid on day 1
  • Recycled road foundation can accept surfacing and traffic quickly – traffic was running on the complete road the day after completion.
  • Less traffic congestion and need for long term diversion schemes.
  • Swifter turnaround for greater productivity.
  • Recycling in-situ material conserves natural resources.
  • Fewer lorry movements, saving energy and reducing impact on local community – 4,500t saved 450 truck movements over 3 days, less congestion, less noise.
  • Fewer disposals to scarce landfill sites.
  • Environmentally responsible process.
  • Effective solutions within restricted budgets.
  • Reduces CO2 emissions – With savings of up to 30% compared with conventional treatments.
  • Less expenditure on imported materials.
  • Lower transportation costs. £75,000 saving!
  • Long term savings from longer lasting treatment.


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