Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cradle-to-Pavement Carbon Footprint of Bio-Extended Bitumen
https://orcid.org/https://orcid.org/0000-0003-1779-1710
https://orcid.org/https://orcid.org/0000-0002-1220-6896
https://orcid.org/https://orcid.org/0000-0002-6327-4709
https://orcid.org/https://orcid.org/0000-0001-7174-7214
https://orcid.org/https://orcid.org/0009-0009-4588-8254
The carbon footprint of bio-extended bitumen aiming for pavement decarbonisation was quantified using a ‘cradle-to-pavement’ Life Cycle Assessment. The bitumen was extended with a plant-based bio-oil, which is refined from the by-products of the pulp and paper industry. The results indicated that using the bio-oil as a bitumen extender slightly increases the fossil Global Warming Potential (GWP) of asphalt pavements up to the construction phase of the life cycle, by about 1%. By biogenic GWP accounting, the impact of biogenic carbon is analysed regarding the inbound transfer from the previous product systems. For a pavement structure with two asphalt layers using bio-extended bitumen, the biogenic GWP reduction due to inbound transfer of biogenic carbon accounted for more than 50% of the fossil GWP. However, the impacts of the outbound transfer and eventual emissions of biogenic carbon still need to be assessed in future studies to cover the complete biogenic carbon flow.
Cradle-to-Pavement Carbon Footprint of Bio-Extended Bitumen
https://orcid.org/https://orcid.org/0000-0003-1779-1710
https://orcid.org/https://orcid.org/0000-0002-1220-6896
https://orcid.org/https://orcid.org/0000-0002-6327-4709
https://orcid.org/https://orcid.org/0000-0001-7174-7214
https://orcid.org/https://orcid.org/0009-0009-4588-8254
The carbon footprint of bio-extended bitumen aiming for pavement decarbonisation was quantified using a ‘cradle-to-pavement’ Life Cycle Assessment. The bitumen was extended with a plant-based bio-oil, which is refined from the by-products of the pulp and paper industry. The results indicated that using the bio-oil as a bitumen extender slightly increases the fossil Global Warming Potential (GWP) of asphalt pavements up to the construction phase of the life cycle, by about 1%. By biogenic GWP accounting, the impact of biogenic carbon is analysed regarding the inbound transfer from the previous product systems. For a pavement structure with two asphalt layers using bio-extended bitumen, the biogenic GWP reduction due to inbound transfer of biogenic carbon accounted for more than 50% of the fossil GWP. However, the impacts of the outbound transfer and eventual emissions of biogenic carbon still need to be assessed in future studies to cover the complete biogenic carbon flow.
Cradle-to-Pavement Carbon Footprint of Bio-Extended Bitumen
https://orcid.org/https://orcid.org/0000-0003-1779-1710
https://orcid.org/https://orcid.org/0000-0002-1220-6896
https://orcid.org/https://orcid.org/0000-0002-6327-4709
https://orcid.org/https://orcid.org/0000-0001-7174-7214
https://orcid.org/https://orcid.org/0009-0009-4588-8254
The carbon footprint of bio-extended bitumen aiming for pavement decarbonisation was quantified using a ‘cradle-to-pavement’ Life Cycle Assessment. The bitumen was extended with a plant-based bio-oil, which is refined from the by-products of the pulp and paper industry. The results indicated that using the bio-oil as a bitumen extender slightly increases the fossil Global Warming Potential (GWP) of asphalt pavements up to the construction phase of the life cycle, by about 1%. By biogenic GWP accounting, the impact of biogenic carbon is analysed regarding the inbound transfer from the previous product systems. For a pavement structure with two asphalt layers using bio-extended bitumen, the biogenic GWP reduction due to inbound transfer of biogenic carbon accounted for more than 50% of the fossil GWP. However, the impacts of the outbound transfer and eventual emissions of biogenic carbon still need to be assessed in future studies to cover the complete biogenic carbon flow.
Cradle-to-Pavement Carbon Footprint of Bio-Extended Bitumen
Carter, Alan (Herausgeber:in) / Vasconcelos, Kamilla (Herausgeber:in) / Dave, Eshan (Herausgeber:in) / Zhu, Jiqing (Autor:in) / Huang, Yue (Autor:in) / Ahmed, Abubeker (Autor:in) / Dinegdae, Yared (Autor:in) / Shen, Songfeng (Autor:in)
International Symposium on Asphalt Pavement & Environment ; 2024 ; Montreal, QC, Canada
14th International Conference on Asphalt Pavements ISAP2024 Montreal ; Kapitel: 31 ; 185-190
24.12.2024
6 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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