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dc.contributor.authorAbdalhmid, Jamila M.*
dc.contributor.authorAshour, Ashraf*
dc.contributor.authorSheehan, Therese*
dc.date.accessioned2019-01-25T10:31:40Z
dc.date.available2019-01-25T10:31:40Z
dc.date.issued2019-03-30
dc.identifier.citationAbdalhmid JM, Ashour AF and Sheehan T (2019) Long-term drying shrinkage of self-compacting concrete: experimental and analytical investigations. Construction and Building Materials. 202: 825-837.
dc.identifier.urihttp://hdl.handle.net/10454/16765
dc.descriptionYes
dc.description.abstractThe present study investigated long-term drying shrinkage strains of self-compacting concrete (SCCs). For all SCCs mixes, Portland cement was replaced with 0–60% of fly ash (FA), fine and course aggregates were kept constant with 890 kg/m3 and 780 kg/m3, respectively. Two different water binder ratios of 0.44 and 0.33 were examined for both SCCs and normal concrete (NCs). Fresh properties of SCCs such as filling ability, passing ability, viscosity and resistance to segregation and hardened properties such as compressive and flexural strengths, water absorption and density of SCCs and NCs were also determined. Experimental results of drying shrinkage were compared to five existing models, namely the ACI 209R-92 model, BSEN-92 model, ACI 209R-92 (Huo) model, B3 model, and GL2000. To assess the quality of predictive models, the influence of various parameters (compressive strength, cement content, water content and relative humidity) effecting on the drying shrinkage strain as considered by the models are studied. The results showed that, using up to 60% of FA as cement replacement can produce SCC with a compressive strength as high as 30 MPa and low drying shrinkage strain. SCCs long-term drying shrinkage from 356 to 1000 days was higher than NCs. ACI 209R-92 model provided a better prediction of drying shrinkage compared with the other models.
dc.description.sponsorshipFinancial support of Higher Education of Libya (469/2009).
dc.language.isoenen
dc.rights© 2019 Elsevier Ltd. All rights reserved. Reproduced in accordance with the publisher's self-archiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.
dc.subjectSelf-compacting concrete (SCC)
dc.subjectDrying shrinkage strain
dc.subjectFly ash
dc.subjectDrying shrinkage models
dc.titleLong-term drying shrinkage of self-compacting concrete: experimental and analytical investigations
dc.status.refereedYes
dc.date.application2019-01-18
dc.typeArticle
dc.type.versionAccepted manuscript
dc.identifier.doihttps://doi.org/10.1016/j.conbuildmat.2018.12.152
dc.rights.licenseCC-BY-NC-ND
refterms.dateFOA2019-01-25T10:31:40Z
dc.openaccess.statusopenAccess
dc.date.accepted2018-12-21


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