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Carbonation-induced weathering effect on cesium retention of cement paste

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dc.contributor.authorPark, Sol Moiko
dc.contributor.authorJang, J. G.ko
dc.date.accessioned2018-06-16T07:36:19Z-
dc.date.available2018-06-16T07:36:19Z-
dc.date.created2018-06-11-
dc.date.created2018-06-11-
dc.date.issued2018-07-
dc.identifier.citationJOURNAL OF NUCLEAR MATERIALS, v.505, pp.159 - 164-
dc.identifier.issn0022-3115-
dc.identifier.urihttp://hdl.handle.net/10203/242519-
dc.description.abstractCarbonation is inevitable for cement and concrete in repositories over an extended period of time. This study investigated the carbonation-induced weathering effect on cesium retention of cement. Cement paste samples were exposed to accelerated carbonation for different durations to simulate the extent of weathering among samples. The extent of carbonation in cement was characterized by XRD, TG and NMR spectroscopy, while the retention capacity for cesium was investigated by zeta potential measurement and batch adsorption tests. Though carbonation led to decalcification from the binder gel, it negatively charged the surface of cement hydrates and enhanced their cesium adsorption capacity. (C) 2018 Elsevier B.V. All rights reserved.-
dc.languageEnglish-
dc.publisherELSEVIER SCIENCE BV-
dc.subjectC-S-H-
dc.subjectCALCIUM SILICATE HYDRATE-
dc.subjectMAS NMR-SPECTROSCOPY-
dc.subjectPORTLAND-CEMENT-
dc.subjectRADIOACTIVE-WASTE-
dc.subjectMODIFIED MONTMORILLONITE-
dc.subjectADSORPTION-
dc.subjectCONCRETE-
dc.subjectREMOVAL-
dc.subjectREPOSITORY-
dc.titleCarbonation-induced weathering effect on cesium retention of cement paste-
dc.typeArticle-
dc.identifier.wosid000432845800019-
dc.identifier.scopusid2-s2.0-85045582456-
dc.type.rimsART-
dc.citation.volume505-
dc.citation.beginningpage159-
dc.citation.endingpage164-
dc.citation.publicationnameJOURNAL OF NUCLEAR MATERIALS-
dc.identifier.doi10.1016/j.jnucmat.2018.04.015-
dc.contributor.nonIdAuthorJang, J. G.-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorRadioactive waste disposal-
dc.subject.keywordAuthorEngineered barrier-
dc.subject.keywordAuthorCement-
dc.subject.keywordAuthorWeathering-
dc.subject.keywordAuthorAdsorption-
dc.subject.keywordPlusC-S-H-
dc.subject.keywordPlusCALCIUM SILICATE HYDRATE-
dc.subject.keywordPlusMAS NMR-SPECTROSCOPY-
dc.subject.keywordPlusPORTLAND-CEMENT-
dc.subject.keywordPlusRADIOACTIVE-WASTE-
dc.subject.keywordPlusMODIFIED MONTMORILLONITE-
dc.subject.keywordPlusADSORPTION-
dc.subject.keywordPlusCONCRETE-
dc.subject.keywordPlusREMOVAL-
dc.subject.keywordPlusREPOSITORY-
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