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Article: Roles of water film thickness and SP dosage in rheology and cohesiveness of mortar

TitleRoles of water film thickness and SP dosage in rheology and cohesiveness of mortar
Authors
KeywordsCement-sand mortar
Cohesiveness
Combined effect
Good correlations
Packing density
Issue Date2012
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/cemconcomp
Citation
Cement and Concrete Composites, 2012, v. 34 n. 2, p. 121-130 How to Cite?
AbstractIn recent studies, the authors have demonstrated that the combined effects of water content, packing density and solid surface area on the rheology of mortar may be evaluated in terms of the water film thickness (WFT). However, in addition to these factors, the superplasticizer (SP) dosage also has some effects. In order to study the roles of the WFT and SP dosage in the rheology and cohesiveness of mortar, a number of cement-sand mortar samples with different SP dosages and water contents were made for packing density, rheology and cohesiveness measurements. The results showed that the packing density and WFT would increase significantly with the SP dosage. At low SP dosage, the rheology of mortar is dependent on both the WFT and SP dosage while at high SP dosage, the rheology of mortar is dependent solely on the WFT. On the contrary, the cohesiveness of mortar is always dependent on both the WFT and SP dosage. Lastly, regression analysis of the test results was carried out and very good correlations of the measured rheological parameters to the WFT and SP dosage have been achieved. © 2011 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/150635
ISSN
2015 Impact Factor: 3.399
2015 SCImago Journal Rankings: 3.017
ISI Accession Number ID
Funding AgencyGrant Number
Research Grants Council of the Hong Kong Special Administrative Region713309
Funding Information:

The work described in this paper was fully supported by a Grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. 713309).

References

 

DC FieldValueLanguage
dc.contributor.authorKwan, AKHen_US
dc.contributor.authorFung, WWSen_US
dc.date.accessioned2012-06-26T06:06:19Z-
dc.date.available2012-06-26T06:06:19Z-
dc.date.issued2012en_US
dc.identifier.citationCement and Concrete Composites, 2012, v. 34 n. 2, p. 121-130en_US
dc.identifier.issn0958-9465en_US
dc.identifier.urihttp://hdl.handle.net/10722/150635-
dc.description.abstractIn recent studies, the authors have demonstrated that the combined effects of water content, packing density and solid surface area on the rheology of mortar may be evaluated in terms of the water film thickness (WFT). However, in addition to these factors, the superplasticizer (SP) dosage also has some effects. In order to study the roles of the WFT and SP dosage in the rheology and cohesiveness of mortar, a number of cement-sand mortar samples with different SP dosages and water contents were made for packing density, rheology and cohesiveness measurements. The results showed that the packing density and WFT would increase significantly with the SP dosage. At low SP dosage, the rheology of mortar is dependent on both the WFT and SP dosage while at high SP dosage, the rheology of mortar is dependent solely on the WFT. On the contrary, the cohesiveness of mortar is always dependent on both the WFT and SP dosage. Lastly, regression analysis of the test results was carried out and very good correlations of the measured rheological parameters to the WFT and SP dosage have been achieved. © 2011 Elsevier Ltd. All rights reserved.en_US
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/cemconcompen_US
dc.relation.ispartofCement and Concrete Compositesen_US
dc.subjectCement-sand mortaren_US
dc.subjectCohesivenessen_US
dc.subjectCombined effecten_US
dc.subjectGood correlationsen_US
dc.subjectPacking density-
dc.titleRoles of water film thickness and SP dosage in rheology and cohesiveness of mortaren_US
dc.typeArticleen_US
dc.identifier.emailKwan, AKH: khkwan@hku.hken_US
dc.identifier.emailFung, WWS: wilsonfl@graduate.hku.hk-
dc.identifier.authorityKwan, AKH=rp00127en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.cemconcomp.2011.09.016en_US
dc.identifier.scopuseid_2-s2.0-84655160831en_US
dc.identifier.hkuros206097-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84655160831&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume34en_US
dc.identifier.issue2en_US
dc.identifier.spage121en_US
dc.identifier.epage130en_US
dc.identifier.isiWOS:000300545500001-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridFung, WWS=36091084700en_US
dc.identifier.scopusauthoridKwan, AKH=7101738204en_US
dc.identifier.citeulike9856149-

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