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Article: Use of condensed silica fume for making high-strength, self-consolidating concrete

TitleUse of condensed silica fume for making high-strength, self-consolidating concrete
Authors
KeywordsCondensed silica fume
High-strength concrete
Self-consolidating concrete
Issue Date2000
PublisherN R C Research Press. The Journal's web site is located at http://pubs.nrc-cnrc.gc.ca/cgi-bin/rp/rp2_desc_e?cjce
Citation
Canadian Journal Of Civil Engineering, 2000, v. 27 n. 4, p. 620-627 How to Cite?
AbstractA high concrete strength can be achieved by lowering the water/binder ratio and a high workability by adding a higher dosage of superplasticizer. However, a high-performance concrete with both high strength and high workability cannot be produced by just these means because lowering the water/binder ratio leads to lower workability and there is a limit to the increase in workability that can be attained by adding superplasticizer. To produce a high-strength, high-workability concrete, the concrete strength needs to be increased without lowering the water/binder ratio. This can be done by adding condensed silica fume. In this study, a series of trial mixing aimed at developing high-strength, self-consolidating concrete (mean cube strength >80 MPa and needs no compaction for consolidation) was carried out. Several mixes suitable for making such high-performance concrete have been developed and it was found that the addition of condensed silica fume may, under favourable conditions, increase not only the strength but also the workability of the concrete mix. Based on the trial mix results, charts for the design of high-strength, high-workability concrete mixes made of the studied constituents are presented. | A high concrete strength can be achieved by lowering the water/binder ratio and a high workability by adding a higher dosage of superplasticizer. However, a high-performance concrete with both high strength and high workability cannot be produced by just these means because lowering the water/binder ratio leads to lower workability and there is a limit to the increase in workability that can be attained by adding superplasticizer. To produce a high-strength, high-workability concrete, the concrete strength needs to be increased without lowering the water/binder ratio. This can be done by adding condensed silica fume. In this study, a series of trial mixing aimed at developing high-strength, self-consolidating concrete (mean cube strength >80 MPa and needs no compaction for consolidation) was carried out. Several mixes suitable for making such high-performance concrete have been developed and it was found that the addition of condensed silica fume may, under favourable conditions, increase not only the strength but also the workability of the concrete mix. Based on the trial mix results, charts for the design of high-strength, high-workability concrete mixes made of the studied constituents are presented.
Persistent Identifierhttp://hdl.handle.net/10722/42647
ISSN
2015 Impact Factor: 0.586
2015 SCImago Journal Rankings: 0.386
References

 

DC FieldValueLanguage
dc.contributor.authorKwan, AKHen_HK
dc.date.accessioned2007-03-23T04:28:47Z-
dc.date.available2007-03-23T04:28:47Z-
dc.date.issued2000en_HK
dc.identifier.citationCanadian Journal Of Civil Engineering, 2000, v. 27 n. 4, p. 620-627en_HK
dc.identifier.issn0315-1468en_HK
dc.identifier.urihttp://hdl.handle.net/10722/42647-
dc.description.abstractA high concrete strength can be achieved by lowering the water/binder ratio and a high workability by adding a higher dosage of superplasticizer. However, a high-performance concrete with both high strength and high workability cannot be produced by just these means because lowering the water/binder ratio leads to lower workability and there is a limit to the increase in workability that can be attained by adding superplasticizer. To produce a high-strength, high-workability concrete, the concrete strength needs to be increased without lowering the water/binder ratio. This can be done by adding condensed silica fume. In this study, a series of trial mixing aimed at developing high-strength, self-consolidating concrete (mean cube strength >80 MPa and needs no compaction for consolidation) was carried out. Several mixes suitable for making such high-performance concrete have been developed and it was found that the addition of condensed silica fume may, under favourable conditions, increase not only the strength but also the workability of the concrete mix. Based on the trial mix results, charts for the design of high-strength, high-workability concrete mixes made of the studied constituents are presented. | A high concrete strength can be achieved by lowering the water/binder ratio and a high workability by adding a higher dosage of superplasticizer. However, a high-performance concrete with both high strength and high workability cannot be produced by just these means because lowering the water/binder ratio leads to lower workability and there is a limit to the increase in workability that can be attained by adding superplasticizer. To produce a high-strength, high-workability concrete, the concrete strength needs to be increased without lowering the water/binder ratio. This can be done by adding condensed silica fume. In this study, a series of trial mixing aimed at developing high-strength, self-consolidating concrete (mean cube strength >80 MPa and needs no compaction for consolidation) was carried out. Several mixes suitable for making such high-performance concrete have been developed and it was found that the addition of condensed silica fume may, under favourable conditions, increase not only the strength but also the workability of the concrete mix. Based on the trial mix results, charts for the design of high-strength, high-workability concrete mixes made of the studied constituents are presented.en_HK
dc.format.extent1676480 bytes-
dc.format.extent25088 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.languageengen_HK
dc.publisherN R C Research Press. The Journal's web site is located at http://pubs.nrc-cnrc.gc.ca/cgi-bin/rp/rp2_desc_e?cjceen_HK
dc.relation.ispartofCanadian Journal of Civil Engineeringen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsCanadian Journal of Civil Engineering. Copyright © N R C Research Press.en_HK
dc.subjectCondensed silica fumeen_HK
dc.subjectHigh-strength concreteen_HK
dc.subjectSelf-consolidating concreteen_HK
dc.titleUse of condensed silica fume for making high-strength, self-consolidating concreteen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0315-1468&volume=27&issue=4&spage=620&epage=627&date=2000&atitle=Use+of+condensed+silica+fume+for+making+high-strength,+self-consolidating+concreteen_HK
dc.identifier.emailKwan, AKH:khkwan@hkucc.hku.hken_HK
dc.identifier.authorityKwan, AKH=rp00127en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.scopuseid_2-s2.0-0034252414en_HK
dc.identifier.hkuros62578-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0034252414&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume27en_HK
dc.identifier.issue4en_HK
dc.identifier.spage620en_HK
dc.identifier.epage627en_HK
dc.publisher.placeCanadaen_HK
dc.identifier.scopusauthoridKwan, AKH=7101738204en_HK

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