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Article: Effects of silica fume on heat generation of curing concrete

TitleEffects of silica fume on heat generation of curing concrete
Authors
KeywordsEarly thermal cracking
Fly ash
Heat generation
Silica fume
Adiabatic temperature rise
Issue Date2011
PublisherAmerican Concrete Institute. The Journal's web site is located at http://www.concrete.org/PUBS/JOURNALS/MJHOME.ASP
Citation
ACI Materials Journal, 2011, v. 108 n. 6, p. 655-663 How to Cite?
AbstractCurrently, silica fume (SF) is quite commonly used for the production of high-performance concrete. The effects ofSF on heat generation of curing concrete, however-especially in the presence of other pozzolanic materials such as fly ash (FA) and at different watercementitious material ratios (w/cm)-are still not clearly known. To study the combined effects of SF and FA at different w/cm, concrete mixtures with SF replacement up to 10%, FA replacement up to 20%, and w/cm ranging from 0.24 to 0.40 were produced for semi-adiabatic curing tests. Heat loss compensation was applied to determine the adiabatic temperature rises of the concrete mixtures. The test results revealed that 1) the heat generation per weight of cementitious materials is generally smaller at a lower w/cm; 2) within the range of parameters studied, SF replacement would reduce the amount of heat generation but increase the rate of heat generation; and 3) compared on an equal strength basis, 5 and 10% SF replacement would reduce the amount of heat generation by approximately 10% and 20%, respectively. © 2011, American Concrete Institute. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/150632
ISSN
2015 Impact Factor: 1.154
2015 SCImago Journal Rankings: 1.430
References

 

DC FieldValueLanguage
dc.contributor.authorKwan, AKHen_US
dc.contributor.authorChen, Jen_US
dc.contributor.authorFung, WSen_US
dc.contributor.authorNg, PLen_US
dc.date.accessioned2012-06-26T06:06:17Z-
dc.date.available2012-06-26T06:06:17Z-
dc.date.issued2011en_US
dc.identifier.citationACI Materials Journal, 2011, v. 108 n. 6, p. 655-663en_US
dc.identifier.issn0889-325Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/150632-
dc.description.abstractCurrently, silica fume (SF) is quite commonly used for the production of high-performance concrete. The effects ofSF on heat generation of curing concrete, however-especially in the presence of other pozzolanic materials such as fly ash (FA) and at different watercementitious material ratios (w/cm)-are still not clearly known. To study the combined effects of SF and FA at different w/cm, concrete mixtures with SF replacement up to 10%, FA replacement up to 20%, and w/cm ranging from 0.24 to 0.40 were produced for semi-adiabatic curing tests. Heat loss compensation was applied to determine the adiabatic temperature rises of the concrete mixtures. The test results revealed that 1) the heat generation per weight of cementitious materials is generally smaller at a lower w/cm; 2) within the range of parameters studied, SF replacement would reduce the amount of heat generation but increase the rate of heat generation; and 3) compared on an equal strength basis, 5 and 10% SF replacement would reduce the amount of heat generation by approximately 10% and 20%, respectively. © 2011, American Concrete Institute. All rights reserved.en_US
dc.languageengen_US
dc.publisherAmerican Concrete Institute. The Journal's web site is located at http://www.concrete.org/PUBS/JOURNALS/MJHOME.ASP-
dc.relation.ispartofACI Materials Journalen_US
dc.subjectEarly thermal crackingen_US
dc.subjectFly ashen_US
dc.subjectHeat generationen_US
dc.subjectSilica fumeen_US
dc.subjectAdiabatic temperature rise-
dc.titleEffects of silica fume on heat generation of curing concreteen_US
dc.typeArticleen_US
dc.identifier.emailKwan, AKH: khkwan@hkucc.hku.hken_US
dc.identifier.emailNg, PL: irdngpl@hku.hk-
dc.identifier.authorityKwan, AKH=rp00127en_US
dc.description.naturelink_to_OA_fulltexten_US
dc.identifier.scopuseid_2-s2.0-84055222095en_US
dc.identifier.hkuros206091-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84055222095&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume108en_US
dc.identifier.issue6en_US
dc.identifier.spage655en_US
dc.identifier.epage663en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridNg, PL=15045284100en_US
dc.identifier.scopusauthoridFung, WWS=36091084700en_US
dc.identifier.scopusauthoridChen, JJ=36767219700en_US
dc.identifier.scopusauthoridKwan, AKH=7101738204en_US

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