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Colder asphalt could cut pollution

At least a third of the emissions produced by asphalt companies could be cut during the next 10 years if a lower-temperature version of the material is used.

The Carbon Trust is leading a project to find out how to reduce the heat needed to mix asphalt, which is 170C, and lead to a 39% cut in the amount of pollution produced by firms such as Tarmac, United Asphalt and Aggregate Industries.

Cooler asphalt hardens quicker, which will cut down the delay between when it is laid to when its surface is ready for vehicles to use.

The Carbon Trust’s Mark Williamson said: “There are huge carbon savings to be gained from using cooler asphalt. We are partnering with the leaders in the UK industry to prove the benefits, so that more cooler asphalt will hit our roads soon.

“The Carbon Trust has already launched a carbon-reduction strategy to help the aggregates industry reduce its carbon footprint by 20% and shave some £45M a year off its energy bills.”

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