6 May 2022 | Innovation | Net Zero | Our Work

View from the top: Is warm-mixed asphalt the way forward?

Warm-mix asphalts have been around now for some years and trial after trial has been evaluated. The experts tell us that warm-mix has so many advantages that it should become the default product.

Numerous reports have been drafted that highlight the fact that because it is manufactured at lower temperatures than conventional hot mix asphalts , it uses less energy and delivers meaningful carbon savings all without compromising performance. At a meeting of our Innovations Board last week we heard from two industry experts, one from a supplier and the other from the Mineral Products Association not just about the carbon savings but how the use of warm-mix reduced the cost of a scheme through time savings as the layers can be built up quicker and the road can be opened back up to the public sooner. So, to summarise the use of warm-mix asphalts delivers the following benefits:

  • Carbon savings
  • Cost savings
  • Productivity savings
  • Improved durability, and
  • Improvements in health and safety due to working with materials at lower temperatures

I know that warm-mix is not currently the default solution for all local highway authorities, and based on the facts above, I’m not sure why. It would really help to paint a balanced picture if you would share your views with me with regards to the use of warm-mix asphalts.


Practical steps on the journey to net zero: The materials challenge

Join us on 07 June for the second webinar in a series of events entitled ‘Practical steps on the journey to net zero’.

The webinar will be hosted hosted by LCRIG in association with primary partners for the series, Breedon and Colas. The event is set to examine how carbon savings can be made across highway and transportation infrastructure with respect to the type of materials used.

Register for the event here.