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Conference Paper: Adiabatic temperature rise of pulverized fuel ash (PFA) concrete

TitleAdiabatic temperature rise of pulverized fuel ash (PFA) concrete
Authors
KeywordsAdiabatic temperature rise
Heat loss compensation
Pulverized fuel ash
Semi-adiabatic curing test
Issue Date2011
PublisherTrans Tech Publications Ltd.. The Journal's web site is located at http://www.scitec.ch/1022-6680/
Citation
International Conference on Structures and Building Materials (ICSBM 2011), Guangzhou, China, 7-9 January 2011. In Advanced Materials Research, 2011, v. 168-170, p. 570-577 How to Cite?
AbstractOwing to the less exothermic pozzolanic reaction of pulverized fuel ash (PFA) compared to cement hydration, the addition of PFA can reduce the heat generation of concrete during its hardening. However, as the water to binder (W/B) ratio would affect the proportions of cement and PFA that could react with water, the conventional practice of determining concrete temperature rise solely based on the cement and PFA contents may not yield accurate estimations. An experimental programme was launched to investigate the adiabatic temperature rise of PFA concrete mixes. Seven concrete mixes without PFA added and 14 concrete mixes with PFA dosages at 20% and 40% were tested with the recently developed semi-adiabatic curing test method. The adiabatic temperature rise was obtained by applying heat loss compensation to the test results. It was found that the incorporation of PFA could suppress the adiabatic temperature rise by 4°C to 14°C. The test results revealed the dependence of adiabatic temperature rise on both PFA dosage and W/B ratio, whose combined effects can be accurately addressed via the prediction formula and design chart developed herein.
DescriptionSelected, peer-reviewed paper from the 2011 International Conference on Structures and Building Materials, (ICSBM 2011), 7-9 January, 2011, Guangzhou, China
Persistent Identifierhttp://hdl.handle.net/10722/139065
ISBN
ISSN
2015 SCImago Journal Rankings: 0.115
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorNg, PLen_HK
dc.contributor.authorNg, IYTen_HK
dc.contributor.authorFung, WWSen_HK
dc.contributor.authorChen, JJen_HK
dc.contributor.authorKwan, AKHen_HK
dc.date.accessioned2011-09-23T05:44:42Z-
dc.date.available2011-09-23T05:44:42Z-
dc.date.issued2011en_HK
dc.identifier.citationInternational Conference on Structures and Building Materials (ICSBM 2011), Guangzhou, China, 7-9 January 2011. In Advanced Materials Research, 2011, v. 168-170, p. 570-577en_HK
dc.identifier.isbn9780878492077-
dc.identifier.issn1022-6680en_HK
dc.identifier.urihttp://hdl.handle.net/10722/139065-
dc.descriptionSelected, peer-reviewed paper from the 2011 International Conference on Structures and Building Materials, (ICSBM 2011), 7-9 January, 2011, Guangzhou, China-
dc.description.abstractOwing to the less exothermic pozzolanic reaction of pulverized fuel ash (PFA) compared to cement hydration, the addition of PFA can reduce the heat generation of concrete during its hardening. However, as the water to binder (W/B) ratio would affect the proportions of cement and PFA that could react with water, the conventional practice of determining concrete temperature rise solely based on the cement and PFA contents may not yield accurate estimations. An experimental programme was launched to investigate the adiabatic temperature rise of PFA concrete mixes. Seven concrete mixes without PFA added and 14 concrete mixes with PFA dosages at 20% and 40% were tested with the recently developed semi-adiabatic curing test method. The adiabatic temperature rise was obtained by applying heat loss compensation to the test results. It was found that the incorporation of PFA could suppress the adiabatic temperature rise by 4°C to 14°C. The test results revealed the dependence of adiabatic temperature rise on both PFA dosage and W/B ratio, whose combined effects can be accurately addressed via the prediction formula and design chart developed herein.en_HK
dc.languageengen_US
dc.publisherTrans Tech Publications Ltd.. The Journal's web site is located at http://www.scitec.ch/1022-6680/en_HK
dc.relation.ispartofAdvanced Materials Researchen_HK
dc.subjectAdiabatic temperature riseen_HK
dc.subjectHeat loss compensationen_HK
dc.subjectPulverized fuel ashen_HK
dc.subjectSemi-adiabatic curing testen_HK
dc.titleAdiabatic temperature rise of pulverized fuel ash (PFA) concreteen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1022-6680&volume=168-170&spage=570&epage=577&date=2011&atitle=Adiabatic+temperature+rise+of+pulverized+fuel+ash+(PFA)+concrete-
dc.identifier.emailNg, IYT: ivanytng@graduate.hku.hken_HK
dc.identifier.emailKwan, AKH: khkwan@hkucc.hku.hken_HK
dc.identifier.authorityNg, IYT=rp00156en_HK
dc.identifier.authorityKwan, AKH=rp00127en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.4028/www.scientific.net/AMR.168-170.570en_HK
dc.identifier.scopuseid_2-s2.0-78651304266en_HK
dc.identifier.hkuros193735en_US
dc.identifier.hkuros237957-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-78651304266&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume168-170en_HK
dc.identifier.spage570en_HK
dc.identifier.epage577en_HK
dc.identifier.isiWOS:000290470000104-
dc.publisher.placeSwitzerlanden_HK
dc.identifier.scopusauthoridNg, PL=15045284100en_HK
dc.identifier.scopusauthoridNg, IYT=12243904600en_HK
dc.identifier.scopusauthoridFung, WWS=36091084700en_HK
dc.identifier.scopusauthoridChen, JJ=36767219700en_HK
dc.identifier.scopusauthoridKwan, AKH=7101738204en_HK

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