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New asphalt solution paves the way for cleaner air

Reduced-emission asphalt (REA)

Hanson offering customers a range of reduced-emission asphalts to minimize impact on air quality 

HANSON are offering their customers a new range of reduced-emission asphalt (REA) products to help minimize the impact of asphalt production and laying on local air quality.

The move follows the company’s successful REA trials using Shell Bitumen FreshAir, a specialist binder which helps reduce emissions from asphalt mixes by an average of 40% compared with conventional bitumen.

 

The binder, which can be used in all Hanson asphalt products and does not affect the properties of the bitumen or asphalt, acts directly with some of the chemical compounds affecting air quality, as well as odour-releasing molecules, helping to cut specific gases and particulates or minimize their release into the air during production and paving.

‘REA is particularly beneficial for ultra-low emission zones and other areas with poor air quality,’ said Hanson UK asphalt managing director Gareth Day. ‘Its use can improve air quality during the road-building phase – particularly in tunnels, where ventilation is an issue, and urban areas, as well as during production.’

Having carried out extensive testing, Hanson are now offering REA from a number of their plants, including West Drayton in the London Borough of Hillingdon, Penmaenmawr in North Wales and Ardingly in Sussex.

According to the company, every kilometre switched to REA is estimated to have a similar effect on particulate matter (PM10) as planting 16 trees and a similar impact on the reduction of nitrogen dioxide (NO2) as removing 40 cars from the road.

 

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