Contractors World

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Contractors World UK & Ireland
2012 Vol 2 No 3   
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Substantial cost and environment benefits on in-situ recycling repairs

Substantial cost and environment benefits on in-situ recycling repairs

Enfield Council (London) has made substantial savings in cost and time and achieved huge environmental benefits on a series of road maintenance projects in the Borough. The Council has saved £1.75M and several weeks work, while considerably reducing traffic disruption and saving an estimated 59 tonnes of carbon dioxide emissions.

These vast savings, and the bonus benefit of producing a lower carbon footprint, have been achieved by the forward thinking Council’s decision to reuse the existing material in the eight different roads. The Council has treated, strengthened and recycled the material in-situ, instead of adopting more expensive, slower and more disruptive traditional road reconstruction techniques of replacing old materials with new.

The decision to use the faster, more cost effective and environmentally beneficial in-situ road recycling method was strongly influenced by the Council’s discovery of hazardous tar-bound materials during testing of core samples taken from the eight damaged roads.

Leafy streets of Enfield benefit from a council with an awareness of environmental saving in cold recycling of the many miles of roads in the council’s area.“We estimated there was approximately 2,500 t of hazardous tar material in these roads, which would have had to be planed off and taken to a specially licensed tip about 90 miles away in Peterborough,” says Enfield Council principal highways maintenance engineer Ian Sturrock.

Leafy streets of Enfield benefit from a council with an awareness of environmental saving in cold recycling of the many miles of roads in the council’s area.
Photo: Christine Matthews

“The cost of removing the tar-bound material, which has to be treated as hazardous waste, costs over £100/t and would have been around £250,000 in total. The main cost saving on these roads was achieved by not having to take the tar-bound planings to a licensed tip as hazardous waste.”

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Page updated: March / April 2012



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