File Download
There are no files associated with this item.
Supplementary
-
Citations:
- Scopus: 0
- Appears in Collections:
Article: Effects of cement and water contents on adiabatic temperature rise of concrete
Title | Effects of cement and water contents on adiabatic temperature rise of concrete |
---|---|
Authors | |
Keywords | Adiabatic curing test Early temperature rise Early thermal cracking |
Issue Date | 2009 |
Publisher | American Concrete Institute. The Journal's web site is located at http://www.concrete.org/PUBS/JOURNALS/MJHOME.ASP |
Citation | Aci Materials Journal, 2009, v. 106 n. 1, p. 42-49 How to Cite? |
Abstract | The temperature rise of concrete during curing is dependent on the mixture composition and proportions, among which the cement content should be the major factor. If the water content is relatively low, however, the cement would not fully hydrate and the water content should also have significant effects. This paper reports an experimental program aiming to investigate the combined effects of cement and water contents by measuring the adiabatic temperature rise of concrete mixtures with different mixture proportions. A newly developed semi-adiabatic curing test method with heat loss compensation applied was employed to measure the adiabatic temperature rise of the concrete mixtures. The results reveal that, for a given paste volume, the adiabatic temperature rise would be highest at a water-cement ratio (w/c) of 0.36; therefore, the adiabatic temperature rise of a higher strength concrete is not necessarily higher. Furthermore, the degree of hydration would gradually decrease as the w/c decreases. Based on these results, design charts and formulas for predicting the adiabatic temperature rise, heat generation, and degree of hydration of concrete mixtures with w/c ranging from 0.28 to 0.48 have been developed. Copyright © 2009, American Concrete Institute. All rights reserved. |
Persistent Identifier | http://hdl.handle.net/10722/124571 |
ISSN | 2023 Impact Factor: 1.9 2023 SCImago Journal Rankings: 0.753 |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ng, IYT | en_HK |
dc.contributor.author | Ng, PL | en_HK |
dc.contributor.author | Kwan, AKH | en_HK |
dc.date.accessioned | 2010-10-31T10:41:57Z | - |
dc.date.available | 2010-10-31T10:41:57Z | - |
dc.date.issued | 2009 | en_HK |
dc.identifier.citation | Aci Materials Journal, 2009, v. 106 n. 1, p. 42-49 | en_HK |
dc.identifier.issn | 0889-325X | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/124571 | - |
dc.description.abstract | The temperature rise of concrete during curing is dependent on the mixture composition and proportions, among which the cement content should be the major factor. If the water content is relatively low, however, the cement would not fully hydrate and the water content should also have significant effects. This paper reports an experimental program aiming to investigate the combined effects of cement and water contents by measuring the adiabatic temperature rise of concrete mixtures with different mixture proportions. A newly developed semi-adiabatic curing test method with heat loss compensation applied was employed to measure the adiabatic temperature rise of the concrete mixtures. The results reveal that, for a given paste volume, the adiabatic temperature rise would be highest at a water-cement ratio (w/c) of 0.36; therefore, the adiabatic temperature rise of a higher strength concrete is not necessarily higher. Furthermore, the degree of hydration would gradually decrease as the w/c decreases. Based on these results, design charts and formulas for predicting the adiabatic temperature rise, heat generation, and degree of hydration of concrete mixtures with w/c ranging from 0.28 to 0.48 have been developed. Copyright © 2009, American Concrete Institute. All rights reserved. | en_HK |
dc.language | eng | en_HK |
dc.publisher | American Concrete Institute. The Journal's web site is located at http://www.concrete.org/PUBS/JOURNALS/MJHOME.ASP | en_HK |
dc.relation.ispartof | ACI Materials Journal | en_HK |
dc.subject | Adiabatic curing test | en_HK |
dc.subject | Early temperature rise | en_HK |
dc.subject | Early thermal cracking | en_HK |
dc.title | Effects of cement and water contents on adiabatic temperature rise of concrete | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0889-325X&volume=106&issue=1&spage=42&epage=49&date=2009&atitle=Effects+of+cement+and+water+contents+on+adiabatic+temperature+rise+of+concrete | - |
dc.identifier.email | Ng, IYT: ivanytng@graduate.hku.hk | en_HK |
dc.identifier.email | Kwan, AKH: khkwan@hkucc.hku.hk | en_HK |
dc.identifier.authority | Ng, IYT=rp00156 | en_HK |
dc.identifier.authority | Kwan, AKH=rp00127 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.scopus | eid_2-s2.0-59649088807 | en_HK |
dc.identifier.hkuros | 180631 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-59649088807&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 106 | en_HK |
dc.identifier.issue | 1 | en_HK |
dc.identifier.spage | 42 | en_HK |
dc.identifier.epage | 49 | en_HK |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Ng, IYT=12243904600 | en_HK |
dc.identifier.scopusauthorid | Ng, PL=15045284100 | en_HK |
dc.identifier.scopusauthorid | Kwan, AKH=7101738204 | en_HK |
dc.identifier.issnl | 0889-325X | - |