File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Heat generation of curing fly ash concrete at different w/cm

TitleHeat generation of curing fly ash concrete at different w/cm
Authors
KeywordsEarly thermal cracking
Fly ash
Heat generation
Temperature
Cement
Issue Date2011
PublisherAmerican Concrete Institute. The Journal's website is located at http://www.concrete.org/PUBS/JOURNALS/MJHOME.ASP
Citation
ACI Materials Journal, 2011, v. 108 n. 3, p. 307-315 How to Cite?
AbstractIt is well known that the heat generation of curing concrete is higher when the cement content is higher and lower when part of cement is replaced by fly ash (FA). As the water-cementitious material ratio (w/cm,) would affect the proportions of cementitious materials that would react with water, however, it should also have certain effect. To study the combined effects of FA replacement and w/cm, the temperature rises of concrete mixtures with FA replacement ratios ranging from 0 to 40% and w/cm ranging from 0.24 to 0.48 were tested. Heat loss compensation was applied to obtain the adiabatic temperature increases of the concrete mixtures. The results revealed that the heat generation is lower at a lower w/cm, and the reduction in heat generation due to FA replacement is greater at a higher w/cm. At the same required strength, however, the effectiveness of FA replacement in reducing heat generation is higher at a higher strength level when the w/cm is relatively low. Copyright © 2011. American Concrete Institute. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/139069
ISSN
2015 Impact Factor: 1.154
2015 SCImago Journal Rankings: 1.430
References

 

DC FieldValueLanguage
dc.contributor.authorKwan, AKHen_HK
dc.contributor.authorFung, WWSen_HK
dc.contributor.authorChen, JJen_HK
dc.contributor.authorNg, PLen_HK
dc.date.accessioned2011-09-23T05:44:45Z-
dc.date.available2011-09-23T05:44:45Z-
dc.date.issued2011en_HK
dc.identifier.citationACI Materials Journal, 2011, v. 108 n. 3, p. 307-315en_HK
dc.identifier.issn0889-325Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/139069-
dc.description.abstractIt is well known that the heat generation of curing concrete is higher when the cement content is higher and lower when part of cement is replaced by fly ash (FA). As the water-cementitious material ratio (w/cm,) would affect the proportions of cementitious materials that would react with water, however, it should also have certain effect. To study the combined effects of FA replacement and w/cm, the temperature rises of concrete mixtures with FA replacement ratios ranging from 0 to 40% and w/cm ranging from 0.24 to 0.48 were tested. Heat loss compensation was applied to obtain the adiabatic temperature increases of the concrete mixtures. The results revealed that the heat generation is lower at a lower w/cm, and the reduction in heat generation due to FA replacement is greater at a higher w/cm. At the same required strength, however, the effectiveness of FA replacement in reducing heat generation is higher at a higher strength level when the w/cm is relatively low. Copyright © 2011. American Concrete Institute. All rights reserved.en_HK
dc.languageengen_US
dc.publisherAmerican Concrete Institute. The Journal's website is located at http://www.concrete.org/PUBS/JOURNALS/MJHOME.ASP-
dc.relation.ispartofACI Materials Journalen_HK
dc.subjectEarly thermal crackingen_HK
dc.subjectFly ashen_HK
dc.subjectHeat generationen_HK
dc.subjectTemperatureen_HK
dc.subjectCement-
dc.titleHeat generation of curing fly ash concrete at different w/cmen_HK
dc.typeArticleen_HK
dc.identifier.emailKwan, AKH:khkwan@hkucc.hku.hken_HK
dc.identifier.authorityKwan, AKH=rp00127en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-79957823166en_HK
dc.identifier.hkuros193766en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79957823166&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume108en_HK
dc.identifier.issue3en_HK
dc.identifier.spage307en_HK
dc.identifier.epage315en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridKwan, AKH=7101738204en_HK
dc.identifier.scopusauthoridFung, WWS=36091084700en_HK
dc.identifier.scopusauthoridChen, JJ=36767219700en_HK
dc.identifier.scopusauthoridNg, RL=40561598700en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats