Biochar-cement concrete toward decarbonisation and sustainability for construction: Characteristic, performance and perspective

Lin, X; Li, W; Guo, Y; Dong, W; Castel, A; Wang, K

Biochar-cement concrete toward decarbonisation and sustainability for construction: Characteristic, performance and perspective

Lin, X Li, W

Guo, Y Dong, W Castel, A

Wang, K

Permalink

Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Journal of Cleaner Production, 2023, 419
Issue Date:: 2023-09-20

Closed Access

	Filename	Description	Size
	1-s2.0-S0959652623023776-main.pdf	Published version	8.42 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Lin, X
dc.contributor.author	Li, W https://orcid.org/0000-0002-4651-1215
dc.contributor.author	Guo, Y
dc.contributor.author	Dong, W
dc.contributor.author	Castel, A https://orcid.org/0000-0003-1619-9643
dc.contributor.author	Wang, K
dc.date.accessioned	2024-04-07T07:12:57Z
dc.date.available	2024-04-07T07:12:57Z
dc.date.issued	2023-09-20
dc.identifier.citation	Journal of Cleaner Production, 2023, 419
dc.identifier.issn	0959-6526
dc.identifier.issn	1879-1786
dc.identifier.uri	http://hdl.handle.net/10453/177516
dc.description.abstract	Biochar has been increasingly used in the production of cementitious materials due to its low cost, low-carbon emission, and environmental benefits. This study provides a comprehensive review on the effect of biochar on the performance of cementitious composites, focusing on mechanical properties, durability properties, and carbon-sequestration capacity. It has been observed that the use of biochar can improve the mechanical strength, thermal, and electromagnetic performance of hardened biochar-cement composites. The optimum cement replacement with biochar is 1–2 wt% (by weight) for enhancing the compressive and flexural strength. Additionally, the addition of biochar can improve the resistance to sulphate attacks, chloride-induced corrosion, shrinkage, and permeability of biochar-cement composites. Biochar also has the potential to reduce the permeability of concrete, and no significant differences were observed in permeability reduction for biochar processed at different pyrolysis temperatures. The positive effect of biochar (up to 5 wt%) on durability improvement is attributed to enhanced hydration and physical filling, resulting in a denser microstructure that prevents the penetration of ions and water. This study also discusses the impact of biochar on carbon sequestration capacity, demonstrating its ability to enhance the carbon-sequestration capacity of biochar-based concrete. In conclusion, while the mechanical properties of concrete with biochar have been extensively investigated, future research is needed to explore the long-term durability properties under different environmental conditions. Moreover, there is a growing demand for low-carbon concrete that utilizes carbon-negative materials to enhance performance and resilience.
dc.language	English
dc.publisher	ELSEVIER SCI LTD
dc.relation	http://purl.org/au-research/grants/arc/IH200100010
dc.relation	http://purl.org/au-research/grants/arc/DP220101051
dc.relation	http://purl.org/au-research/grants/arc/DP220100036
dc.relation	http://purl.org/au-research/grants/arc/FT220100177
dc.relation.ispartof	Journal of Cleaner Production
dc.relation.isbasedon	10.1016/j.jclepro.2023.138219
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0907 Environmental Engineering, 0910 Manufacturing Engineering, 0915 Interdisciplinary Engineering
dc.subject.classification	Environmental Sciences
dc.subject.classification	33 Built environment and design
dc.subject.classification	40 Engineering
dc.title	Biochar-cement concrete toward decarbonisation and sustainability for construction: Characteristic, performance and perspective
dc.type	Journal Article
utslib.citation.volume	419
utslib.for	0907 Environmental Engineering
utslib.for	0910 Manufacturing Engineering
utslib.for	0915 Interdisciplinary Engineering
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access	*
dc.date.updated	2024-04-07T07:12:52Z
pubs.publication-status	Published
pubs.volume	419

Abstract:

Biochar has been increasingly used in the production of cementitious materials due to its low cost, low-carbon emission, and environmental benefits. This study provides a comprehensive review on the effect of biochar on the performance of cementitious composites, focusing on mechanical properties, durability properties, and carbon-sequestration capacity. It has been observed that the use of biochar can improve the mechanical strength, thermal, and electromagnetic performance of hardened biochar-cement composites. The optimum cement replacement with biochar is 1–2 wt% (by weight) for enhancing the compressive and flexural strength. Additionally, the addition of biochar can improve the resistance to sulphate attacks, chloride-induced corrosion, shrinkage, and permeability of biochar-cement composites. Biochar also has the potential to reduce the permeability of concrete, and no significant differences were observed in permeability reduction for biochar processed at different pyrolysis temperatures. The positive effect of biochar (up to 5 wt%) on durability improvement is attributed to enhanced hydration and physical filling, resulting in a denser microstructure that prevents the penetration of ions and water. This study also discusses the impact of biochar on carbon sequestration capacity, demonstrating its ability to enhance the carbon-sequestration capacity of biochar-based concrete. In conclusion, while the mechanical properties of concrete with biochar have been extensively investigated, future research is needed to explore the long-term durability properties under different environmental conditions. Moreover, there is a growing demand for low-carbon concrete that utilizes carbon-negative materials to enhance performance and resilience.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/177516