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Conference Paper: Reducing concrete shrinkage by aggregate treatment with polymer latex and water repellent

TitleReducing concrete shrinkage by aggregate treatment with polymer latex and water repellent
Authors
Issue Date2012
PublisherAmerican Concrete Institute.
Citation
10th International Conference on Superplasticizers and Other Chemical Admixtures 2012, Prague, Czech Republic, 28-31 October 2012. In American Concrete Institute Publication SP, 2012, v. 288, p. 467-480, SP288-32 How to Cite?
AbstractWhile the drying shrinkage of concrete is due mainly to the shrinkage of cement paste, the shrinkage of rock aggregate also plays a significant role. Hence, it should be possible to reduce the shrinkage of concrete by hampering the moisture movement across the rock aggregate so that the aggregate would not shrink after casting. Since rock is porous in nature, the moisture movement across rock can only be hampered by blocking or sealing the pores. For this purpose, the use of polymer latex or water repellent to treat the aggregate before casting is proposed. To investigate the effectiveness of such aggregate treatment, a testing program was launched, in which the water absorptions of untreated and treated aggregates were tested and the shrinkage strains of concrete made with the untreated and treated aggregates were measured up to over 600 days. The results demonstrated that the proposed aggregate treatment with polymer latex or water repellent can significantly reduce the concrete shrinkage.
Persistent Identifierhttp://hdl.handle.net/10722/188963
ISSN

 

DC FieldValueLanguage
dc.contributor.authorFung, WWSen_US
dc.contributor.authorNg, PLen_US
dc.contributor.authorWong, HHCen_US
dc.contributor.authorKwan, AKHen_US
dc.date.accessioned2013-09-17T14:21:13Z-
dc.date.available2013-09-17T14:21:13Z-
dc.date.issued2012en_US
dc.identifier.citation10th International Conference on Superplasticizers and Other Chemical Admixtures 2012, Prague, Czech Republic, 28-31 October 2012. In American Concrete Institute Publication SP, 2012, v. 288, p. 467-480, SP288-32en_US
dc.identifier.issn0193-2527en_US
dc.identifier.urihttp://hdl.handle.net/10722/188963-
dc.description.abstractWhile the drying shrinkage of concrete is due mainly to the shrinkage of cement paste, the shrinkage of rock aggregate also plays a significant role. Hence, it should be possible to reduce the shrinkage of concrete by hampering the moisture movement across the rock aggregate so that the aggregate would not shrink after casting. Since rock is porous in nature, the moisture movement across rock can only be hampered by blocking or sealing the pores. For this purpose, the use of polymer latex or water repellent to treat the aggregate before casting is proposed. To investigate the effectiveness of such aggregate treatment, a testing program was launched, in which the water absorptions of untreated and treated aggregates were tested and the shrinkage strains of concrete made with the untreated and treated aggregates were measured up to over 600 days. The results demonstrated that the proposed aggregate treatment with polymer latex or water repellent can significantly reduce the concrete shrinkage.-
dc.languageengen_US
dc.publisherAmerican Concrete Institute.en_US
dc.relation.ispartofAmerican Concrete Institute Publication SPen_US
dc.titleReducing concrete shrinkage by aggregate treatment with polymer latex and water repellenten_US
dc.typeConference_Paperen_US
dc.identifier.emailKwan, AKH: khkwan@hkucc.hku.hken_US
dc.identifier.authorityKwan, AKH=rp00127en_US
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.14359/51684248-
dc.identifier.scopuseid_2-s2.0-84875705912-
dc.identifier.hkuros224921en_US
dc.identifier.volume288en_US
dc.identifier.spage467en_US
dc.identifier.epage480, SP288en_US
dc.publisher.placeUnited Statesen_US
dc.description.other10th International Conference on Superplasticizers and Other Chemical Admixtures 2012, Prague, Czech Republic, 28-31 October 2012. In American Concrete Institute Publication SP, 2012, v. 288, p. 467-480 Program/Report no. SP288-32-

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