Renewable binders from waste biomass for road construction: A review on thermochemical conversion technologies and current developments

Weir, A.; Jiménez del Barco Carrión, A.; Queffélec, C.; Bujoli, B.; Chailleux, E.; Uguna, C.N.; Snape, C.; Airey, G.

Abstract

Biobinders (binders manufactured from biomass) are becoming popular in asphalt engineering due to growing environmental concerns of greenhouse gas emissions from the use of fossil fuels and depleting petroleum bitumen reserves. Waste biomass products are sources of particular interest due to their widespread availability and impact on sustainability, however, they generally need to be thermochemically treated before being used as biobinders. Although biobinders can exhibit good performance in terms of resisting common distresses affecting road pavements, they are still relatively unknown and the uncertainty around them discourages their further use. In this context, this review aims at providing a link between biomass thermochemical conversion technologies and their respective products that may be used as biobinders in pavement engineering. For this purpose, firstly, a detailed insight of the biomass thermochemical conversion technologies available for the manufacture of biobinders is provided. Specifically, solvent liquefaction and pyrolysis are compared and the operating parameters affecting the production of biobinders from solvent liquefaction are explored. Secondly, the review focuses on providing an overview of current biobinder studies for asphalt mixtures with an emphasis on the feedstock utilised and their key engineering properties. The review shows that biobinders’ performance highly depends on the biomass source and the technology applied to produce them. Summary tables provide researchers with a quick but insightful way of identifying potential biobinder feedstocks according to certain properties.

Citation

Weir, A., Jiménez del Barco Carrión, A., Queffélec, C., Bujoli, B., Chailleux, E., Uguna, C., …Airey, G. (2022). Renewable binders from waste biomass for road construction: A review on thermochemical conversion technologies and current developments. Construction and Building Materials, 330, Article 127076. https://doi.org/10.1016/j.conbuildmat.2022.127076

• Journal Article Type: Review
• Acceptance Date: Mar 4, 2022
• Online Publication Date: Mar 25, 2022
• Publication Date: 2022-05
• Deposit Date: May 9, 2022
• Publicly Available Date: Mar 26, 2023
• Journal: Construction and Building Materials
• Print ISSN: 0950-0618
• Publisher: Elsevier BV
• Peer Reviewed: Peer Reviewed
• Volume: 330
• Article Number: 127076
• DOI: https://doi.org/10.1016/j.conbuildmat.2022.127076
• Keywords: General Materials Science; Building and Construction; Civil and Structural Engineering
• Public URL: https://nottingham-repository.worktribe.com/output/7651445
• Publisher URL: https://www.sciencedirect.com/science/article/abs/pii/S0950061822007590
• Additional Information: This article is maintained by: Elsevier; Article Title: Renewable binders from waste biomass for road construction: A review on thermochemical conversion technologies and current developments; Journal Title: Construction and Building Materials; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.conbuildmat.2022.127076; Content Type: article; Copyright: © 2022 Elsevier Ltd. All rights reserved.