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Article: Grade 80-100 self-consolidating concrete for Hong Kong

TitleGrade 80-100 self-consolidating concrete for Hong Kong
Authors
KeywordsHigh-strength Concrete
Self-consolidating Concrete
Superplasticiser
Issue Date2004
PublisherHong Kong Institution of Engineers. The Journal's web site is located at http://www.hkie.org.hk/html/publications/transactions/index.asp
Citation
Transactions Hong Kong Institution Of Engineers, 2004, v. 11 n. 2, p. 1-7 How to Cite?
AbstractCompared to normal concrete mixes, high-strength concrete mixes are more cohesive and sticky, and would in general require a larger slump for proper consolidation. On the other hand, apart from high strength, high workability is also desired because it would allow faster and quieter concreting operation and reduce the risk of incomplete consolidation. However, it is not easy to achieve both high strength, which demands a low water/binder ratio, and high workability, which demands a high water content, without increasing the binder paste volume, which may lead to thermal and shrinkage cracking problems. In this study, the feasibility of producing high-strength, self-consolidating concrete with a binder paste volume of not more than 35% in Hong Kong was investigated by trial concrete mixing. A new polycarboxylate-based superplasticiser was used. In total, 18 trial mixes have been cast. All of them have slump higher than 200 mm and 28-day cube strength ranging from 80 to 117 M Pa. Some of them are suitable for making grade 80-100, self-consolidating concrete in Hong Kong.
Persistent Identifierhttp://hdl.handle.net/10722/71102
ISSN
2015 SCImago Journal Rankings: 0.145
References

 

DC FieldValueLanguage
dc.contributor.authorKwan, AKHen_HK
dc.contributor.authorNg, IYTen_HK
dc.date.accessioned2010-09-06T06:28:55Z-
dc.date.available2010-09-06T06:28:55Z-
dc.date.issued2004en_HK
dc.identifier.citationTransactions Hong Kong Institution Of Engineers, 2004, v. 11 n. 2, p. 1-7en_HK
dc.identifier.issn1023-697Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/71102-
dc.description.abstractCompared to normal concrete mixes, high-strength concrete mixes are more cohesive and sticky, and would in general require a larger slump for proper consolidation. On the other hand, apart from high strength, high workability is also desired because it would allow faster and quieter concreting operation and reduce the risk of incomplete consolidation. However, it is not easy to achieve both high strength, which demands a low water/binder ratio, and high workability, which demands a high water content, without increasing the binder paste volume, which may lead to thermal and shrinkage cracking problems. In this study, the feasibility of producing high-strength, self-consolidating concrete with a binder paste volume of not more than 35% in Hong Kong was investigated by trial concrete mixing. A new polycarboxylate-based superplasticiser was used. In total, 18 trial mixes have been cast. All of them have slump higher than 200 mm and 28-day cube strength ranging from 80 to 117 M Pa. Some of them are suitable for making grade 80-100, self-consolidating concrete in Hong Kong.en_HK
dc.languageengen_HK
dc.publisherHong Kong Institution of Engineers. The Journal's web site is located at http://www.hkie.org.hk/html/publications/transactions/index.aspen_HK
dc.relation.ispartofTransactions Hong Kong Institution of Engineersen_HK
dc.subjectHigh-strength Concreteen_HK
dc.subjectSelf-consolidating Concreteen_HK
dc.subjectSuperplasticiseren_HK
dc.titleGrade 80-100 self-consolidating concrete for Hong Kongen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1023-697X&volume=11&issue=2&spage=1&epage=7&date=2004&atitle=Grade+80-100+self-consolidating+concrete+for+Hong+Kongen_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.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-9944223240en_HK
dc.identifier.hkuros94843en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-9944223240&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume11en_HK
dc.identifier.issue2en_HK
dc.identifier.spage1en_HK
dc.identifier.epage7en_HK
dc.publisher.placeHong Kongen_HK
dc.identifier.scopusauthoridKwan, AKH=7101738204en_HK
dc.identifier.scopusauthoridNg, IYT=12243904600en_HK

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