Viasphalt®BT: environmentally friendly low-temperature asphalt
Poured asphalt coatings consume a great deal of energy as a result of its high production temperature, which is close to 240°C. The negative environmental impact of asphalt production is due to the heating of the mix ingredients and the time required for mixing, which generate large volumes of greenhouse gas emissions.
In efforts to reduce air pollution and related nuisances, Eurovia's research centre has developed low-temperature Viasphalt BT, a process that yields a 60°C to 80°C drop in production temperature depending on the type of asphalt as well as more comfortable paving conditions. The process results in major energy savings and virtually eliminates vapour emissions.
This process received a Special Sustainable Development Prize in the Processes and Technique category.