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Article: Optimum superplasticiser dosage and aggregate proportions for SCC

TitleOptimum superplasticiser dosage and aggregate proportions for SCC
Authors
Kwan, AKHNg, IYT
KeywordsConcrete mix
Experimental studies
Filling abilities
Self-consolidating concrete
Slump flow
Issue Date2009
PublisherThomas Telford (ICE Publishing). The Journal's web site is located at http://www.concrete-research.com
Citation
Magazine Of Concrete Research, 2009, v. 61 n. 4, p. 281-292 How to Cite?
DOI: http://dx.doi.org/10.1680/macr.2008.00010
AbstractAn experimental study has been carried out to investigate the effect of superplasticiser dosage on the performance of self-consolidating concrete (SCC). Seven concrete mixes with water/cement (w/c) ratios ranging from 0-35 to 0-45 and fine/total (F/T) aggregate ratios ranging from 0-40 to 0-60 were designed and 42 batches of concrete containing different dosages of superplasticiser were produced. The workability, passing and filling abilities, and segregation stability of the concrete produced were measured using the slump flow, U-box, and sieve segregation tests respectively. For each concrete mix designed, the superplasticiser dosages for maximum slump flow without segregation and maximum filling height were determined. It was found that the maximum performance of the concrete mix and the respective required superplasticiser dosage are dependent on the w/c and F/T aggregate ratios. In general, increasing the F/T aggregate ratio would improve the maximum performance but would also increase the superplasticiser dosage needed. Lastly, the robustness of each concrete mix was evaluated quantita-tively as the range of superplasticiser dosage or slump flow satisfying all requirements for SCC Based on these results, the optimum superplasticiser dosage for maximum robustness of each concrete mix was determined.
Persistent Identifierhttp://hdl.handle.net/10722/124542
ISSN
0024-9831
2021 Impact Factor: 2.460
2020 SCImago Journal Rankings: 0.901
ISI Accession Number ID
WOS:000265001100005
Funding AgencyGrant Number
Research Grants Council of the Hong Kong Special Administrative Region, ChinaHKU 7139/05E
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. HKU 7139/05E).

References
References in Scopus
Grants
Optimizing packing density for production of high-performance concrete

 

DC FieldValueLanguage
dc.contributor.authorKwan, AKHen_HK
dc.contributor.authorNg, IYTen_HK
dc.date.accessioned2010-10-31T10:40:24Z-
dc.date.available2010-10-31T10:40:24Z-
dc.date.issued2009en_HK
dc.identifier.citationMagazine Of Concrete Research, 2009, v. 61 n. 4, p. 281-292en_HK
dc.identifier.issn0024-9831en_HK
dc.identifier.urihttp://hdl.handle.net/10722/124542-
dc.description.abstractAn experimental study has been carried out to investigate the effect of superplasticiser dosage on the performance of self-consolidating concrete (SCC). Seven concrete mixes with water/cement (w/c) ratios ranging from 0-35 to 0-45 and fine/total (F/T) aggregate ratios ranging from 0-40 to 0-60 were designed and 42 batches of concrete containing different dosages of superplasticiser were produced. The workability, passing and filling abilities, and segregation stability of the concrete produced were measured using the slump flow, U-box, and sieve segregation tests respectively. For each concrete mix designed, the superplasticiser dosages for maximum slump flow without segregation and maximum filling height were determined. It was found that the maximum performance of the concrete mix and the respective required superplasticiser dosage are dependent on the w/c and F/T aggregate ratios. In general, increasing the F/T aggregate ratio would improve the maximum performance but would also increase the superplasticiser dosage needed. Lastly, the robustness of each concrete mix was evaluated quantita-tively as the range of superplasticiser dosage or slump flow satisfying all requirements for SCC Based on these results, the optimum superplasticiser dosage for maximum robustness of each concrete mix was determined.en_HK
dc.languageengen_HK
dc.publisherThomas Telford (ICE Publishing). The Journal's web site is located at http://www.concrete-research.comen_HK
dc.relation.ispartofMagazine of Concrete Researchen_HK
dc.rightsPermission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees-
dc.subjectConcrete mix-
dc.subjectExperimental studies-
dc.subjectFilling abilities-
dc.subjectSelf-consolidating concrete-
dc.subjectSlump flow-
dc.titleOptimum superplasticiser dosage and aggregate proportions for SCCen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0024-9831&volume=61&issue=4&spage=281&epage=292&date=2009&atitle=Optimum+superplasticiser+dosage+and+aggregate+proportions+for+SCCen_HK
dc.identifier.emailKwan, AKH: khkwan@hkucc.hku.hken_HK
dc.identifier.emailNg, IYT: ivanytng@graduate.hku.hken_HK
dc.identifier.authorityKwan, AKH=rp00127en_HK
dc.identifier.authorityNg, IYT=rp00156en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1680/macr.2008.00010en_HK
dc.identifier.scopuseid_2-s2.0-67449104340en_HK
dc.identifier.hkuros180647en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-67449104340&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume61en_HK
dc.identifier.issue4en_HK
dc.identifier.spage281en_HK
dc.identifier.epage292en_HK
dc.identifier.isiWOS:000265001100005-
dc.publisher.placeUnited Kingdomen_HK
dc.relation.projectOptimizing packing density for production of high-performance concrete-
dc.identifier.scopusauthoridKwan, AKH=7101738204en_HK
dc.identifier.scopusauthoridNg, IYT=12243904600en_HK
dc.identifier.issnl0024-9831-

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