Fewer emissions and higher recycling rates of up to 60 %
Reclaimed asphalt can currently already be added to the production process using reliable cold and hot recycling technologies. This, however, results in higher total carbon emissions (Ctot, volatile organic compounds – VOC). When reclaimed asphalt is heated, part of the Ctot concentration volatilises from the bitumen in the recycling material. Ctot has a higher greenhouse potential than CO2 and is hazardous to health in higher concentrations. The higher the recycling rate, however, the less fresh bitumen is required and the lower the carbon footprint. Increasing the recycling material from 40 % to 60 % alone can save approx. 440 t of CO2 per year*. * (annual production of 100,000 t, coal dust as fuel)
In the past, it was practically impossible to resolve the conflicting objectives of meeting high recycling rates for reclaimed asphalt while protecting the climate. Thanks to the powerful REVOC system, the two aspects can now be consolidated: reducing Ctot emissions by up to 50 % and implementing higher recycling rates of up to 60 %.