Physical properties of Australian hurd used as aggregate for hemp concrete

Delhomme, F; Hajimohammadi, A; Almeida, A; Jiang, C; Moreau, D; Gan, Y; Wang, X; Castel, A

Physical properties of Australian hurd used as aggregate for hemp concrete

Delhomme, F Hajimohammadi, A Almeida, A Jiang, C Moreau, D Gan, Y Wang, X Castel, A

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Publisher:: ELSEVIER
Publication Type:: Journal Article
Citation:: Materials Today Communications, 2020, 24
Issue Date:: 2020-09-01

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Field	Value	Language
dc.contributor.author	Delhomme, F
dc.contributor.author	Hajimohammadi, A
dc.contributor.author	Almeida, A
dc.contributor.author	Jiang, C
dc.contributor.author	Moreau, D
dc.contributor.author	Gan, Y
dc.contributor.author	Wang, X
dc.contributor.author	Castel, A https://orcid.org/0000-0003-1619-9643
dc.date.accessioned	2022-04-29T01:51:11Z
dc.date.available	2022-04-29T01:51:11Z
dc.date.issued	2020-09-01
dc.identifier.citation	Materials Today Communications, 2020, 24
dc.identifier.issn	2352-4928
dc.identifier.issn	2352-4928
dc.identifier.uri	http://hdl.handle.net/10453/156801
dc.description.abstract	The purpose of this study is to determine the key properties of Australian hemp particles which are used for manufacturing hempcrete. Hemp characteristics have a wide variability due to the influence of the environment conditions in various farmed areas. This study focuses on the measurements of the mechanical, thermal and acoustic performances of three Australian hemp: unretted hemp hurd, retted hemp hurd, and hemp fines. Hemp hurd is usually used in non-load bearing building walls, and hemp fine, which is the by-product of hemp manufacturing industry, is usually incorporated into a render. The experimental results show that the main impact of the retting process is a decrease in bulk density and leading to an improvement in thermal and acoustic properties. Without compaction, the bulk density is ranged from 97 and 118.8 kg.m−3, the max sound absorption coefficient from 0.88 and 0.99, and the thermal conductivity from 64 to 97 mW.m-1. K-1. Hemp fines have excellent thermal and acoustic properties and appear to be an efficient aggregate to produce an insulating render. Australian hemps investigated in this study have shown very similar characteristics to European hemps.
dc.language	English
dc.publisher	ELSEVIER
dc.relation.ispartof	Materials Today Communications
dc.relation.isbasedon	10.1016/j.mtcomm.2020.100986
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Physical properties of Australian hurd used as aggregate for hemp concrete
dc.type	Journal Article
utslib.citation.volume	24
utslib.for	0905 Civil 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
utslib.copyright.status	closed_access	*
dc.date.updated	2022-04-29T01:51:09Z
pubs.publication-status	Published
pubs.volume	24

Abstract:

The purpose of this study is to determine the key properties of Australian hemp particles which are used for manufacturing hempcrete. Hemp characteristics have a wide variability due to the influence of the environment conditions in various farmed areas. This study focuses on the measurements of the mechanical, thermal and acoustic performances of three Australian hemp: unretted hemp hurd, retted hemp hurd, and hemp fines. Hemp hurd is usually used in non-load bearing building walls, and hemp fine, which is the by-product of hemp manufacturing industry, is usually incorporated into a render. The experimental results show that the main impact of the retting process is a decrease in bulk density and leading to an improvement in thermal and acoustic properties. Without compaction, the bulk density is ranged from 97 and 118.8 kg.m−3, the max sound absorption coefficient from 0.88 and 0.99, and the thermal conductivity from 64 to 97 mW.m-1. K-1. Hemp fines have excellent thermal and acoustic properties and appear to be an efficient aggregate to produce an insulating render. Australian hemps investigated in this study have shown very similar characteristics to European hemps.

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http://hdl.handle.net/10453/156801