Complete asphalt lifecycle calculation
Since roads are in place and used for long periods of time, it is particularly important that evaluations and calculations encompass the asphalt’s complete lifecycle. In addition to looking at the raw material’s inherent properties, major importance is attached to the environmental impact when the asphalt is being laid and maintained, and its recycling possibilities.
“To enable us to make rational decisions in the transition to more renewable raw materials, it is important to eliminate risks of sub-optimization, meaning that the whole becomes poorer as a result of replacing the parts. We need to ensure that lignin does not result in higher net carbon emissions due to, for example, a shorter useful life, increased consumption or reduced recycling possibilities,” says Robert Lundström, NCC Industry.
The project involves a number of different players. NCC is leading the project and is responsible for the field trials and laying the asphalt on behalf of Karlstad and Kristinehamn municipalities. RISE is contributing its knowledge of lignin, and the production and upscaling capacity of lignin for asphalt. In this, Wageningen University contributes with important experiences from previous work in the Netherlands with lignin in asphalt. The asphalt is produced at Karlstad asphalt plant. Production development is being conducted at LignoCity in Bäckhammar and the project is supported by the Development Fund of the Swedish Construction Industry (SBUF) and the Swedish Transport Administration.
For additional information, please contact:
- Helene Samuelsson, Head of Sustainability Communication, NCC, +46 70 450 12 22
- Tove Stål, Manager Media Relations, NCC Sweden, +46 76 521 61 02
NCC’s media line: +46 8 585 519 00, E-mail: firstname.lastname@example.org, NCC’s Mediabank