Evaluating the properties of mixtures of steel furnace slag, coal wash, and rubber crumbs used as subballast

Indraratna, B; Qi, Y; Heitor, A

Evaluating the properties of mixtures of steel furnace slag, coal wash, and rubber crumbs used as subballast

Indraratna, B

Qi, Y

Heitor, A

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Publisher:: ASCE-AMER SOC CIVIL ENGINEERS
Publication Type:: Journal Article
Citation:: Journal of Materials in Civil Engineering, 2018, 30, (1)
Issue Date:: 2018-01-01

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Field	Value	Language
dc.contributor.author	Indraratna, B https://orcid.org/0000-0002-9057-1514
dc.contributor.author	Qi, Y https://orcid.org/0000-0002-3486-2130
dc.contributor.author	Heitor, A
dc.date.accessioned	2022-02-16T00:02:56Z
dc.date.available	2022-02-16T00:02:56Z
dc.date.issued	2018-01-01
dc.identifier.citation	Journal of Materials in Civil Engineering, 2018, 30, (1)
dc.identifier.issn	0899-1561
dc.identifier.issn	1943-5533
dc.identifier.uri	http://hdl.handle.net/10453/154560
dc.description.abstract	Steel furnace slag (SFS) and coal wash (CW) are two common by-products from the coal-mining and steel industries in Australia. Rubber crumbs (RC) is a material derived from waste tires contributing to environmental problems in most developed countries. Reusing and recycling these waste materials is not only economically beneficial and environmentally sustainable, but it also helps to address geotechnical problems such as track degradation. In this study, SFS, CW, and RC are blended to explore the feasibility of obtaining an energy-absorbing capping layer with properties similar or superior to conventional subballast. Comprehensive laboratory investigations have been carried out to study the geotechnical properties of SFS + CW + RC mixtures, from which seven parameters (including gradation, permeability, peak friction angle, breakage index, swell pressure, strain energy density, and axial strain under cyclic loading) were used to evaluate the properties of these mixtures used as subballast. It was found that a mixture with SFS:CW = 7:3 and 10% RC (63% SFS, 27% CW, and 10% RC) is the best mixture for subballast.
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.1943-5533.0002108
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0912 Materials Engineering
dc.subject.classification	Building & Construction
dc.title	Evaluating the properties of mixtures of steel furnace slag, coal wash, and rubber crumbs used as subballast
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	2022-02-16T00:02:53Z
pubs.issue	1
pubs.publication-status	Published
pubs.volume	30
utslib.citation.issue	1

Abstract:

Steel furnace slag (SFS) and coal wash (CW) are two common by-products from the coal-mining and steel industries in Australia. Rubber crumbs (RC) is a material derived from waste tires contributing to environmental problems in most developed countries. Reusing and recycling these waste materials is not only economically beneficial and environmentally sustainable, but it also helps to address geotechnical problems such as track degradation. In this study, SFS, CW, and RC are blended to explore the feasibility of obtaining an energy-absorbing capping layer with properties similar or superior to conventional subballast. Comprehensive laboratory investigations have been carried out to study the geotechnical properties of SFS + CW + RC mixtures, from which seven parameters (including gradation, permeability, peak friction angle, breakage index, swell pressure, strain energy density, and axial strain under cyclic loading) were used to evaluate the properties of these mixtures used as subballast. It was found that a mixture with SFS:CW = 7:3 and 10% RC (63% SFS, 27% CW, and 10% RC) is the best mixture for subballast.

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http://hdl.handle.net/10453/154560