Integrally hydrophobic cementitious composites made with waste amorphous carbon powder

Shahbazi, R; Korayem, AH; Razmjou, A; Duan, WH; Wang, CM; Justnes, H

Integrally hydrophobic cementitious composites made with waste amorphous carbon powder

Shahbazi, R Korayem, AH Razmjou, A Duan, WH Wang, CM Justnes, H

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Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Construction and Building Materials, 2020, 233
Issue Date:: 2020-02-10

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Field	Value	Language
dc.contributor.author	Shahbazi, R
dc.contributor.author	Korayem, AH
dc.contributor.author	Razmjou, A
dc.contributor.author	Duan, WH
dc.contributor.author	Wang, CM
dc.contributor.author	Justnes, H
dc.date.accessioned	2021-02-21T20:12:05Z
dc.date.available	2021-02-21T20:12:05Z
dc.date.issued	2020-02-10
dc.identifier.citation	Construction and Building Materials, 2020, 233
dc.identifier.issn	0950-0618
dc.identifier.issn	1879-0526
dc.identifier.uri	http://hdl.handle.net/10453/146262
dc.description.abstract	© 2019 Amorphous carbon powder (ACP) is a hydrophobic by-product material from refining waste materials of paraffin production factory. ACP effects on permeability and mechanical properties of cementitious composites were investigated. A range of properties of modified cement paste and concrete including hydrophobicity, workability, porosity, compressive strength, transport properties comprising sorptivity, water absorption, water desorption rate and electrical resistivity were studied. Results showed that incorporation of 15% ACP by weight of cement reduces water absorption, sorptivity and electrical conductivity of cement paste by 23%, 86% and 65%, respectively. Sorptivity and electrical conductivity of modified concrete samples by 20% ACP by weight of cement, were reduced by 60% and 30%, respectively. Adding ACP to paste samples resulted in higher compressive strength through lowering porosity. However, in the case of concrete, no significant change was observed. It was demonstrated that ACP could reduce the wettability of cementitious composites by refining the pores and altering the hydrophobicity characteristics of cementitious composites.
dc.language	English
dc.publisher	ELSEVIER SCI LTD
dc.relation.ispartof	Construction and Building Materials
dc.relation.isbasedon	10.1016/j.conbuildmat.2019.117238
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 1202 Building
dc.subject.classification	Building & Construction
dc.title	Integrally hydrophobic cementitious composites made with waste amorphous carbon powder
dc.type	Journal Article
utslib.citation.volume	233
utslib.for	0905 Civil Engineering
utslib.for	0905 Civil Engineering
utslib.for	1202 Building
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
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
dc.date.updated	2021-02-21T20:11:52Z
pubs.publication-status	Published
pubs.volume	233

Abstract:

© 2019 Amorphous carbon powder (ACP) is a hydrophobic by-product material from refining waste materials of paraffin production factory. ACP effects on permeability and mechanical properties of cementitious composites were investigated. A range of properties of modified cement paste and concrete including hydrophobicity, workability, porosity, compressive strength, transport properties comprising sorptivity, water absorption, water desorption rate and electrical resistivity were studied. Results showed that incorporation of 15% ACP by weight of cement reduces water absorption, sorptivity and electrical conductivity of cement paste by 23%, 86% and 65%, respectively. Sorptivity and electrical conductivity of modified concrete samples by 20% ACP by weight of cement, were reduced by 60% and 30%, respectively. Adding ACP to paste samples resulted in higher compressive strength through lowering porosity. However, in the case of concrete, no significant change was observed. It was demonstrated that ACP could reduce the wettability of cementitious composites by refining the pores and altering the hydrophobicity characteristics of cementitious composites.

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http://hdl.handle.net/10453/146262