A 100-metre trial section in Zeeland, The Netherlands, is being used to test bio-based asphalt. The main feature of this asphalt is that half of the petroleum in the bitumen - the final heavy fraction remaining after the refinery of petroleum – has been replaced by lignin.
According to the scientists who discovered the similarities between lignin and bitumen, it can be used as a bio-based replacement as it is also sticky and has similar properties regarding UV and dimension stability.
During the next two years, some tests will be conducted in this road section to check whether lignin offers better results in the rolling resistance for the asphalt, as this would mean extra savings in fossil fuels by lowering the noise and reducing fuel consumption.
For more information, visit WageningenUR website