Cement Kiln By-Pass Dust: An Effective Alkaline Activator for Pozzolanic Materials

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dc.contributor.authorKalina, Lukášcs
dc.contributor.authorBílek, Vlastimilcs
dc.contributor.authorKiripolský, Tomášcs
dc.contributor.authorNovotný, Radoslavcs
dc.contributor.authorMásilko, Jiřícs
dc.coverage.issue9cs
dc.coverage.volume11cs
dc.date.issued2018-09-19cs
dc.description.abstractCement kiln by-pass dust (CKD) is a fine-grained by-product of Portland clinker manufacturing. Its chemical composition is not suitable for returning back into feedstock and, therefore, it has to be discharged. Such an increasing waste production contributes to the high environmental impact of the cement industry. A possible solution for the ecological processing of CKD is its incorporation into alkali-activated blast furnace slag binders. Thanks to high alkaline content, CKD serves as an effective accelerator for latent hydraulic substances which positively affect their mechanical properties. It was found out that CKD in combination with sodium carbonate creates sodium hydroxide in situ which together with sodium water glass content increases the dissolution of blast furnace slag particles and subsequently binder phase formation resulting in better flexural and compressive strength development compared to the sample without it. At the same time, the addition of CKD compensates the autogenous shrinkage of alkali-activated materials reducing the risk of material cracking. On the other hand, this type of inorganic admixture accelerates the hydration process causing rapid loss of workability.en
dc.formattextcs
dc.format.extent1770-1770cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMaterials . 2018, vol. 11, issue 9, p. 1770-1770.en
dc.identifier.doi10.3390/ma11091770cs
dc.identifier.issn1996-1944cs
dc.identifier.orcid0000-0001-8127-8175cs
dc.identifier.orcid0000-0003-3831-3443cs
dc.identifier.orcid0000-0002-1809-5875cs
dc.identifier.orcid0000-0001-9587-5843cs
dc.identifier.other150001cs
dc.identifier.researcheridAAB-9386-2022cs
dc.identifier.researcheridAAY-4689-2020cs
dc.identifier.scopus55255338000cs
dc.identifier.scopus57188564285cs
dc.identifier.scopus25621858200cs
dc.identifier.urihttp://hdl.handle.net/11012/85334
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMaterialscs
dc.relation.urihttps://www.mdpi.com/1996-1944/11/9/1770cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1996-1944/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectcement kiln by-pass dusten
dc.subjectalkali activationen
dc.subjectblast furnace slagen
dc.subjectadmixtureen
dc.titleCement Kiln By-Pass Dust: An Effective Alkaline Activator for Pozzolanic Materialsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-150001en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:38:03en
sync.item.modts2025.01.17 16:35:29en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Centrum materiálového výzkumucs
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