Tarmac | Sustainability milestone for warm mix asphalts
Tarmac’s warm mix asphalt passed a major milestone, with 1.5 million tonnes supplied since it was introduced in 2013.
This milestone, reached in August 2019, shows a growing momentum within the industry towards making more sustainable choices when it comes to surfacing materials.
The All Party Parliamentary Group [APPG] on Highways issued a report in September that identified warm mix asphalts (WMA) as an under exploited opportunity to reduce CO2 emissions associated with asphalt production on highways projects.
Warm mix asphalts support C02 savings of up to 15%. Typical savings are in the region of 8-10% and there is no compromise on performance. Using the figures from the report; if all asphalt production in Great Britain in 2017 had been switched to WMA, it would have saved at least 61,000 tonnes of CO2 – the equivalent of cutting almost 300 million miles of car journeys.
However, there is still a lot of progress to be made, according to the report WMAs represent less than 4% of UK asphalt production compared to around 40% of asphalt production in the US and more than 15% in France.
Brian Kent, National Technical Director at Tarmac explains the importance:
“Warm mix technology is now widely available and is a quick way that Local Authorities can reduce the carbon footprint associated with asphalt production and laying. With the APPG document published and warm mix now included in the SHW July edition, previous barriers to use have now been removed. Suppliers are ready, so it’s now down to Local Authorities to support with routine uptake and we will see the first of many 100% warm mix plants becoming the norm throughout the UK as we move towards a more sustainable future.”
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