Colas hopes its new asphalt under development in France will reduce road vehicle fuel consumption by 3-5%
Colas engineers are investigating the influence of longitudinal evenness and texture of asphalt on fuel consumption. If a link can be proven it could lead to a step change in highways design, with the reduction in fuel consumption directly linked to a reduction in vehicle emissions.
Colas engineers are hopeful that a technological leap with asphalt could match or exceed that made by the tyre industry when silicia was introduced to tyre compounds. There, fuel consumption was shown to be reduced by 3-5%.
“We are asking ‘can advances in pavement design have a similar influence to advances in tyres?’,” explained Colas technical director Jean-Luc Gautier. “Less consumption means less emissions; less pollution,” he added.
Gautier is manager of Colas’ centre for expertise and documentation, part of the French contracting giant’s technical research and development department based on its Campus for Sciences and Techniques just outside Paris.
The technology is at the early stage of development.