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dc.contributor.authorPinson, Matthew B.
dc.contributor.authorMasoero, Enrico
dc.contributor.authorBonnaud, Patrick A.
dc.contributor.authorManzano, Hegoi
dc.contributor.authorJi, Qing
dc.contributor.authorYip, Sidney
dc.contributor.authorThomas, Jeffrey J.
dc.contributor.authorBazant, Martin Z.
dc.contributor.authorVan Vliet, Krystyn J.
dc.contributor.authorJennings, Hamlin Manson
dc.date.accessioned2015-06-18T13:48:22Z
dc.date.available2015-06-18T13:48:22Z
dc.date.issued2015-06
dc.date.submitted2015-01
dc.identifier.issn2331-7019
dc.identifier.urihttp://hdl.handle.net/1721.1/97464
dc.description.abstractCement paste has a complex distribution of pores and molecular-scale spaces. This distribution controls the hysteresis of water sorption isotherms and associated bulk dimensional changes (shrinkage). We focus on two locations of evaporable water within the fine structure of pastes, each having unique properties, and we present applied physics models that capture the hysteresis by dividing drying and rewetting into two related regimes based on relative humidity (RH). We show that a continuum model, incorporating a pore-blocking mechanism for desorption and equilibrium thermodynamics for adsorption, explains well the sorption hysteresis for a paste that remains above approximately 20% RH. In addition, we show with molecular models and experiments that water in spaces of ≲1  nm width evaporates below approximately 20% RH but reenters throughout the entire RH range. This water is responsible for a drying shrinkage hysteresis similar to that of clays but opposite in direction to typical mesoporous glass. Combining the models of these two regimes allows the entire drying and rewetting hysteresis to be reproduced accurately and provides parameters to predict the corresponding dimensional changes. The resulting model can improve the engineering predictions of long-term drying shrinkage accounting also for the history dependence of strain induced by hysteresis. Alternative strategies for quantitative analyses of the microstructure of cement paste based on this mesoscale physical model of water content within porous spaces are discussed.en_US
dc.description.sponsorshipPortland Cement Associationen_US
dc.description.sponsorshipNational Ready Mixed Concrete Association (Research and Education Foundation)en_US
dc.description.sponsorshipSchlumberger Foundationen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevApplied.3.064009en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceAmerican Physical Societyen_US
dc.titleHysteresis from Multiscale Porosity: Modeling Water Sorption and Shrinkage in Cement Pasteen_US
dc.typeArticleen_US
dc.identifier.citationPinson, Matthew B., et al. "Hysteresis from Multiscale Porosity: Modeling Water Sorption and Shrinkage in Cement Paste." Phys. Rev. Applied 3, 064009 (June 2015). © 2015 American Physical Societyen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Chemical Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Civil and Environmental Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Materials Science and Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mathematicsen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mechanical Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Nuclear Science and Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physicsen_US
dc.contributor.mitauthorPinson, Matthew B.en_US
dc.contributor.mitauthorYip, Sidneyen_US
dc.contributor.mitauthorBazant, Martin Z.en_US
dc.contributor.mitauthorVan Vliet, Krystyn J.en_US
dc.contributor.mitauthorJennings, Hamlin Mansonen_US
dc.relation.journalPhysical Review Applieden_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2015-06-17T22:00:06Z
dc.language.rfc3066en
dc.rights.holderAmerican Physical Society
dspace.orderedauthorsPinson, Matthew B.; Masoero, Enrico; Bonnaud, Patrick A.; Manzano, Hegoi; Ji, Qing; Yip, Sidney; Thomas, Jeffrey J.; Bazant, Martin Z.; Van Vliet, Krystyn J.; Jennings, Hamlin M.en_US
dc.identifier.orcidhttps://orcid.org/0000-0001-5735-0560
dc.identifier.orcidhttps://orcid.org/0000-0002-2727-0137
mit.licensePUBLISHER_POLICYen_US


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