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Vliv zinku přítomného ve vedlejších surovinách na hydrataci a vlastnosti portlandských směsných cementů / Influence of Zinc in Byproducts on Hydration and Properties of Blended Portlands Cements

The theme of this work is to monitor the effect of zinc on the properties of blended Portland cements. Zinc was tested in the form of two-soluble salts: Zn(NO3)22 H2O and ZnCl2 and a very slightly soluble compound ZnO. Blended cements were prepared by partial replacement with finely ground granulated blast furnace slag, high-temperature and fluidized bed combustion filter fly ash. Flow properties were studied on the prepared pastes. Impact on hydration reactions was examined by using of isothermal and isoperibolic calorimetry. Flexural and compressive strength were measured as mechanical properties of the prepared test specimens. The phase composition of the prepared composites and incorporation of zinc ions in the cement matrix via leaching tests and FTIR analyzes were also studied. Microstructure development of cement samples was tested by SEM analysis with EDS. Influence on ecotoxicity was also measured.

Identiferoai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:234531
Date January 2015
CreatorsŠilerová, Iva
ContributorsPalou, Martin, Rovnaníková, Pavla, Havlica, Jaromír
PublisherVysoké učení technické v Brně. Fakulta chemická
Source SetsCzech ETDs
LanguageCzech
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/doctoralThesis
Rightsinfo:eu-repo/semantics/restrictedAccess

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