The permeability of natural fibre drains, capturing their micro-features

Nguyen, TT; Indraratna, B

The permeability of natural fibre drains, capturing their micro-features

Nguyen, TT Indraratna, B

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Publisher:: ICE Publishing
Publication Type:: Journal Article
Citation:: Proceedings of the Institution of Civil Engineers: Ground Improvement, 2017, 170, (G13), pp. 123-136
Issue Date:: 2017-08-01

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Field	Value	Language
dc.contributor.author	Nguyen, TT
dc.contributor.author	Indraratna, B https://orcid.org/0000-0002-9057-1514
dc.date.accessioned	2022-09-01T04:27:23Z
dc.date.available	2022-09-01T04:27:23Z
dc.date.issued	2017-08-01
dc.identifier.citation	Proceedings of the Institution of Civil Engineers: Ground Improvement, 2017, 170, (G13), pp. 123-136
dc.identifier.issn	1755-0750
dc.identifier.issn	1755-0769
dc.identifier.uri	http://hdl.handle.net/10453/161174
dc.description.abstract	Natural fibres such as jute and coir are emerging as distinct alternatives to synthetic geomaterials, and in recent years they have been used increasingly for drainage and filtration in field applications. However, these naturally occurring materials are extremely variable in micro-characteristics such as the size, uniformity and shape of their fibres, while there is a lack of studies addressing how these differences can affect the hydraulic behaviour of fibrous media. This paper offers a laboratory study of the influence of micro-features on the hydraulic conductivity of fibre drain. Non-twisted and twisted fibre drains made from jute and coir were subjected to hydraulic conductivity testing and micro-analyses. Experimental results show a considerable contribution of the size characteristics of fibre to the hydraulic behaviour of the drain. A less-rounded shape of fibre and a larger twisting angle of the drain can increase the fluid–fibre contact area and the corresponding tortuosity of flow, which significantly reduces the drain permeability. The way in which the Kozeny–Carmen analytical approach can be adopted to predict the permeability of a fibre drain is discussed based on the experimental results, considering various micro-factors including the size of fibre, uniformity and the associated porosity.
dc.language	en
dc.publisher	ICE Publishing
dc.relation.ispartof	Proceedings of the Institution of Civil Engineers: Ground Improvement
dc.relation.isbasedon	10.1680/jgrim.16.00032
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0503 Soil Sciences, 0905 Civil Engineering
dc.title	The permeability of natural fibre drains, capturing their micro-features
dc.type	Journal Article
utslib.citation.volume	170
utslib.for	0503 Soil Sciences
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	*
pubs.consider-herdc	false
dc.date.updated	2022-09-01T04:27:21Z
pubs.issue	G13
pubs.publication-status	Published
pubs.volume	170
utslib.citation.issue	G13

Abstract:

Natural fibres such as jute and coir are emerging as distinct alternatives to synthetic geomaterials, and in recent years they have been used increasingly for drainage and filtration in field applications. However, these naturally occurring materials are extremely variable in micro-characteristics such as the size, uniformity and shape of their fibres, while there is a lack of studies addressing how these differences can affect the hydraulic behaviour of fibrous media. This paper offers a laboratory study of the influence of micro-features on the hydraulic conductivity of fibre drain. Non-twisted and twisted fibre drains made from jute and coir were subjected to hydraulic conductivity testing and micro-analyses. Experimental results show a considerable contribution of the size characteristics of fibre to the hydraulic behaviour of the drain. A less-rounded shape of fibre and a larger twisting angle of the drain can increase the fluid–fibre contact area and the corresponding tortuosity of flow, which significantly reduces the drain permeability. The way in which the Kozeny–Carmen analytical approach can be adopted to predict the permeability of a fibre drain is discussed based on the experimental results, considering various micro-factors including the size of fibre, uniformity and the associated porosity.

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http://hdl.handle.net/10453/161174