Evaluating the effect of amorphous carbon powder on moisture susceptibility and mechanical resistance of asphalt mixtures

Ziari, H; Habibnejad Korayem, A; Hajiloo, M; Nakhaei, M; Razmjou, A; Divandari, H

Evaluating the effect of amorphous carbon powder on moisture susceptibility and mechanical resistance of asphalt mixtures

Ziari, H Habibnejad Korayem, A Hajiloo, M Nakhaei, M Razmjou, A Divandari, H

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Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Construction and Building Materials, 2017, 152, pp. 182-191
Issue Date:: 2017-10-15

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Field	Value	Language
dc.contributor.author	Ziari, H
dc.contributor.author	Habibnejad Korayem, A
dc.contributor.author	Hajiloo, M
dc.contributor.author	Nakhaei, M
dc.contributor.author	Razmjou, A
dc.contributor.author	Divandari, H
dc.date.accessioned	2023-03-26T23:42:24Z
dc.date.available	2023-03-26T23:42:24Z
dc.date.issued	2017-10-15
dc.identifier.citation	Construction and Building Materials, 2017, 152, pp. 182-191
dc.identifier.issn	0950-0618
dc.identifier.issn	1879-0526
dc.identifier.uri	http://hdl.handle.net/10453/168485
dc.description.abstract	The detrimental effect of water in asphalt mixtures is regarded as one of the major distresses in flexible pavements since it is generally accompanied by mechanical related distresses. This detrimental effect is a complex phenomenon and involves thermodynamic, chemical, physical and mechanical processes. Several methods are used to reduce the moisture sensitivity of mixtures, one of which is to add hydrophobic material in asphalt mixtures as an additive. In this study, amorphous carbon powder, a by-product of paraffin production factory, is used as a replacement of filler (25, 50, 75, and 100%) and as a modifier of bitumen (5, 10, and 15%) to improve the hydrophobicity of mixtures. The sessile drop test was used along with several conventional methods to investigate the hydrophobicity and moisture sensitivity of mixtures. Mechanical stability of mixtures modified by the amorphous carbon powder was also studied using dynamic creep and wheel tracking tests. The results showed that not only did the hydrophobic powder improve the moisture sensitivity, but it also increased the rutting resistance of mixtures. The enhancement of moisture susceptibility was more pronounced when carbon powder was incorporated as filler compared to that of using as binder modifier. However, dynamic creep and wheel tracking test results showed bitumen modified mixtures are more resistant to mechanical deformation. The results of this research provide more insight on the application of waste carbon powder to produce environmental friendly asphalt mixture.
dc.language	English
dc.publisher	ELSEVIER SCI LTD
dc.relation.ispartof	Construction and Building Materials
dc.relation.isbasedon	10.1016/j.conbuildmat.2017.06.036
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 1202 Building
dc.subject.classification	Building & Construction
dc.title	Evaluating the effect of amorphous carbon powder on moisture susceptibility and mechanical resistance of asphalt mixtures
dc.type	Journal Article
utslib.citation.volume	152
utslib.for	0905 Civil Engineering
utslib.for	1202 Building
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	2023-03-26T23:42:22Z
pubs.publication-status	Published
pubs.volume	152

Abstract:

The detrimental effect of water in asphalt mixtures is regarded as one of the major distresses in flexible pavements since it is generally accompanied by mechanical related distresses. This detrimental effect is a complex phenomenon and involves thermodynamic, chemical, physical and mechanical processes. Several methods are used to reduce the moisture sensitivity of mixtures, one of which is to add hydrophobic material in asphalt mixtures as an additive. In this study, amorphous carbon powder, a by-product of paraffin production factory, is used as a replacement of filler (25, 50, 75, and 100%) and as a modifier of bitumen (5, 10, and 15%) to improve the hydrophobicity of mixtures. The sessile drop test was used along with several conventional methods to investigate the hydrophobicity and moisture sensitivity of mixtures. Mechanical stability of mixtures modified by the amorphous carbon powder was also studied using dynamic creep and wheel tracking tests. The results showed that not only did the hydrophobic powder improve the moisture sensitivity, but it also increased the rutting resistance of mixtures. The enhancement of moisture susceptibility was more pronounced when carbon powder was incorporated as filler compared to that of using as binder modifier. However, dynamic creep and wheel tracking test results showed bitumen modified mixtures are more resistant to mechanical deformation. The results of this research provide more insight on the application of waste carbon powder to produce environmental friendly asphalt mixture.

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http://hdl.handle.net/10453/168485