Immobilization of Heavy Metals in Natural Zeolite-blended Cement Pastes

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dc.contributor.authorVyšvařil, Martincs
dc.contributor.authorBayer, Patrikcs
dc.coverage.issue1cs
dc.coverage.volume151cs
dc.date.accessioned2021-12-10T11:52:16Z
dc.date.available2021-12-10T11:52:16Z
dc.date.issued2016-09-26cs
dc.description.abstractThis paper deals with the investigation of efficiency of natural zeolite-blended cement pastes for the immobilization of heavy metals. Natural zeolite was used to partially replace ordinary Portland cement (OPC) at rates of 0% and 20% by weight of a binder and soluble heavy metal salts were added to a mixing water in an amount of 1% and 5% by weight of the binder. The flexural and compressive strength of the cement pastes were investigated, while the leachability of the heavy metals was determined. Additionally, scanning electron microscopy was performed to investigate the microstructure of the cement pastes, while the pore size distribution was analyzed with mercury intrusion porosimetry. The results indicated that the flexural and compressive strengths of the pastes containing 20 wt.% of natural zeolite were higher than those with OPC alone. It was also found out that the effectiveness in reducing the leachability of Ba, Cd, Cu, Ni and Pb was better for the natural zeolite-blended cement pastes.en
dc.formattextcs
dc.format.extent162-169cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationProcedia Engineering. 2016, vol. 151, issue 1, p. 162-169.en
dc.identifier.doi10.1016/j.proeng.2016.07.363cs
dc.identifier.issn1877-7058cs
dc.identifier.other128673cs
dc.identifier.urihttp://hdl.handle.net/11012/203151
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofProcedia Engineeringcs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S1877705816317519cs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1877-7058/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subjectcement pasteen
dc.subjectheavy metalsen
dc.subjectimmobilizationen
dc.subjectmicrostructureen
dc.subjectporosityen
dc.subjectstrengthen
dc.subjectzeoliteen
dc.subjectcementová pasta
dc.subjecttěžké kovy
dc.subjectimobilizace
dc.subjectmikrostruktura
dc.subjectpórovitost
dc.subjectpevnost
dc.subjectzeolit
dc.titleImmobilization of Heavy Metals in Natural Zeolite-blended Cement Pastesen
dc.title.alternativeFixace těžkých kovů v cementové pastě s přírodním zeolitemcs
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-128673en
sync.item.dbtypeVAVen
sync.item.insts2021.12.10 12:52:16en
sync.item.modts2021.12.10 12:14:20en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav chemiecs
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Centrum AdMaS - VP1 - TSHcs
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Centrum AdMaS - VP1 - MSHcs
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