The role and interaction of superplasticizer and emulsifier in fresh cement asphalt emulsion paste through rheology study

Ouyang, J; Han, B; Cao, Y; Zhou, W; Li, W; Shah, SP

The role and interaction of superplasticizer and emulsifier in fresh cement asphalt emulsion paste through rheology study

Ouyang, J Han, B Cao, Y Zhou, W Li, W

Shah, SP

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Publication Type:: Journal Article
Citation:: Construction and Building Materials, 2016, 125 pp. 643 - 653
Issue Date:: 2016-10-30

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Field	Value	Language
dc.contributor.author	Ouyang, J	en_US
dc.contributor.author	Han, B	en_US
dc.contributor.author	Cao, Y	en_US
dc.contributor.author	Zhou, W	en_US
dc.contributor.author	Li, W https://orcid.org/0000-0002-4651-1215	en_US
dc.contributor.author	Shah, SP	en_US
dc.date.issued	2016-10-30	en_US
dc.identifier.citation	Construction and Building Materials, 2016, 125 pp. 643 - 653	en_US
dc.identifier.issn	0950-0618	en_US
dc.identifier.uri	http://hdl.handle.net/10453/98726
dc.description.abstract	© 2016 Elsevier Ltd The workability and mechanical properties of cement asphalt emulsion (CA) mortar are unstable due to the complex interaction between cement and asphalt emulsion. To reveal the interaction between cement and asphalt emulsion, the effect of emulsifier and superplasticizer on the rheology of cement paste and asphalt emulsion is investigated, respectively, and the effect of the interaction between emulsifier and superplasticizer on the rheology of cement paste is studied in this paper as well. Results show that the apparent viscosity and yield stress of asphalt emulsion increase with superplasticizer and emulsifier dosage. Emulsifier can change the yield stress and apparent viscosity of cement paste, and its effect on cement paste differs greatly with the type and dosage of emulsifier. Some emulsifiers can increase the yield stress of cement paste, but some emulsifiers can decrease the yield stress of cement paste. Emulsifier has interaction with superplasticizer, thus affecting the reducing water effect of superplasticizer on cement paste. There is a competition relationship between emulsifier and superplasticizer when they are adsorbed by cement particles. The mixing method, in which superplasticizer is mixed with cement before emulsifier added, is beneficial to obtain a lower apparent viscosity of cement paste for all tested emulsifiers.	en_US
dc.relation.ispartof	Construction and Building Materials	en_US
dc.relation.isbasedon	10.1016/j.conbuildmat.2016.08.085	en_US
dc.subject.classification	Building & Construction	en_US
dc.title	The role and interaction of superplasticizer and emulsifier in fresh cement asphalt emulsion paste through rheology study	en_US
dc.type	Journal Article
utslib.citation.volume	125	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	1202 Building	en_US
pubs.embargo.period	Not known	en_US
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
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	125	en_US

Abstract:

© 2016 Elsevier Ltd The workability and mechanical properties of cement asphalt emulsion (CA) mortar are unstable due to the complex interaction between cement and asphalt emulsion. To reveal the interaction between cement and asphalt emulsion, the effect of emulsifier and superplasticizer on the rheology of cement paste and asphalt emulsion is investigated, respectively, and the effect of the interaction between emulsifier and superplasticizer on the rheology of cement paste is studied in this paper as well. Results show that the apparent viscosity and yield stress of asphalt emulsion increase with superplasticizer and emulsifier dosage. Emulsifier can change the yield stress and apparent viscosity of cement paste, and its effect on cement paste differs greatly with the type and dosage of emulsifier. Some emulsifiers can increase the yield stress of cement paste, but some emulsifiers can decrease the yield stress of cement paste. Emulsifier has interaction with superplasticizer, thus affecting the reducing water effect of superplasticizer on cement paste. There is a competition relationship between emulsifier and superplasticizer when they are adsorbed by cement particles. The mixing method, in which superplasticizer is mixed with cement before emulsifier added, is beneficial to obtain a lower apparent viscosity of cement paste for all tested emulsifiers.

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http://hdl.handle.net/10453/98726