Performance of rubber tire-confined capping layer under cyclic loading for railroad conditions

Indraratna, B; Sun, Q; Heitor, A; Grant, J

Performance of rubber tire-confined capping layer under cyclic loading for railroad conditions

Indraratna, B

Sun, Q Heitor, A Grant, J

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Publisher:: ASCE-AMER SOC CIVIL ENGINEERS
Publication Type:: Journal Article
Citation:: Journal of Materials in Civil Engineering, 2018, 30, (3)
Issue Date:: 2018-03-01

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Field	Value	Language
dc.contributor.author	Indraratna, B https://orcid.org/0000-0002-9057-1514
dc.contributor.author	Sun, Q
dc.contributor.author	Heitor, A
dc.contributor.author	Grant, J
dc.date.accessioned	2022-09-07T21:43:33Z
dc.date.available	2022-09-07T21:43:33Z
dc.date.issued	2018-03-01
dc.identifier.citation	Journal of Materials in Civil Engineering, 2018, 30, (3)
dc.identifier.issn	0899-1561
dc.identifier.issn	1943-5533
dc.identifier.uri	http://hdl.handle.net/10453/161484
dc.description.abstract	The need for long-term performance of rail infrastructure has now become imperative because heavy-haul railways are expected to withstand higher speeds and heavier axle loads, especially for enhanced productivity in mining and agriculture sectors. However, the degradation of ballast particles and associated track deformation impose a significant impact on the cost of maintenance. Although various existing techniques can be used to reduce the extent and frequency of maintenance without removing the superstructure, this study elucidates a novel method of confining the upper subballast stratum (i.e., capping) with energy-absorbing rubber tire cells to provide increased stability and resiliency to the track substructure. The results of this study verify that a capping layer confined with recycled rubber tire cells can actively reduce ballast degradation and particle movement within the track substructure. A favorable reduction in track settlement and lateral spreading of particles is also attained when broadly-graded finer gravels are selected to form a compacted capping layer just beneath the ballast layer.
dc.language	English
dc.publisher	ASCE-AMER SOC CIVIL ENGINEERS
dc.relation.ispartof	Journal of Materials in Civil Engineering
dc.relation.isbasedon	10.1061/(ASCE)MT.1943-5533.0002199
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0912 Materials Engineering
dc.subject.classification	Building & Construction
dc.title	Performance of rubber tire-confined capping layer under cyclic loading for railroad conditions
dc.type	Journal Article
utslib.citation.volume	30
utslib.for	0905 Civil Engineering
utslib.for	0912 Materials 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	2022-09-07T21:43:32Z
pubs.issue	3
pubs.publication-status	Published
pubs.volume	30
utslib.citation.issue	3

Abstract:

The need for long-term performance of rail infrastructure has now become imperative because heavy-haul railways are expected to withstand higher speeds and heavier axle loads, especially for enhanced productivity in mining and agriculture sectors. However, the degradation of ballast particles and associated track deformation impose a significant impact on the cost of maintenance. Although various existing techniques can be used to reduce the extent and frequency of maintenance without removing the superstructure, this study elucidates a novel method of confining the upper subballast stratum (i.e., capping) with energy-absorbing rubber tire cells to provide increased stability and resiliency to the track substructure. The results of this study verify that a capping layer confined with recycled rubber tire cells can actively reduce ballast degradation and particle movement within the track substructure. A favorable reduction in track settlement and lateral spreading of particles is also attained when broadly-graded finer gravels are selected to form a compacted capping layer just beneath the ballast layer.

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

http://hdl.handle.net/10453/161484