Metakaolinite/TiO2 composite: Photoactive admixture for building materials based on Portland cement binder

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Show simple item record Matějka, Vlastimil Matějková, Petra Kovář, P. Vlček, Jozef Přikryl, J. Červenka, P. Lacný, Zdenek Kukutschová, Jana 2012-11-16T07:48:06Z 2012-11-16T07:48:06Z 2012
dc.identifier.citation Construction and building materials. 2012, vol. 35, p. 38-44. cs
dc.identifier.issn 0950-0618
dc.description.abstract Novel latent hydraulic and photoactive admixture metakaolinite/TiO2 was prepared, characterized and evaluated as a partial replacement for the Portland cement in mortars. The main component of this novel composite material is metakaolinite containing the anatase nanoparticles anchored on its surface. The values of the compression strength measured for the mortars containing metakaolinite/TiO2 composites reached higher values in comparison to the mortar without this admixture. Photodegradation activity of the mortars with given amount of the metakaolinite/TiO2 admixture against nitric oxide (NO) was tested using the modified ISO standard. The results showed that the conversion of NO increases with the increasing content of TiO2. The synergistic effect of the photodegradation activity and the latent hydraulicity in this material can be utilized in building industry to decrease concentration of selected air pollutants e.g. in areas affected by traffic pollution. cs
dc.language.iso en cs
dc.publisher Elsevier cs
dc.relation.ispartofseries Construction and building materials cs
dc.relation.uri cs
dc.subject metakaoline cs
dc.subject anatase cs
dc.subject latent hydraulicity cs
dc.subject cement mortar cs
dc.subject photodegradation activity cs
dc.title Metakaolinite/TiO2 composite: Photoactive admixture for building materials based on Portland cement binder cs
dc.type article cs
dc.identifier.location Není ve fondu ÚK cs
dc.identifier.doi 10.1016/j.conbuildmat.2012.02.086
dc.type.status Peer-reviewed cs
dc.description.source Web of Science cs
dc.description.volume 35 cs
dc.description.lastpage 44 cs
dc.description.firstpage 38 cs
dc.identifier.wos 000309493700006

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