THERMAL CONDUCTIVITY OF REINFORCED GEOPOLYMER FOAMS

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dc.contributor.authorLe, Van Su
dc.contributor.authorHájková, Pavlína
dc.contributor.authorKovačič, Vladimír
dc.contributor.authorBakalova, Totka
dc.contributor.authorVoleský, Lukáš
dc.contributor.authorLe, Chi Hiep
dc.contributor.authorSeifert, Kevin Ceccon
dc.contributor.authorPeres, Amanda Pereira
dc.contributor.authorLouda, Petr
dc.date.accessioned2020-01-10T07:15:06Z
dc.date.available2020-01-10T07:15:06Z
dc.date.issued2019
dc.description.abstractReinforced geopolymer foams were studied in this work as potential building materials. It has been widely assumed that for a given thermal conductivity. [W center dot m(-1)center dot K-1], geopolymer foams can have a lighter density than other materials. The study sought to test this assumption by comparing the thermal conductivity between geopolymer foams. The thermal conductivity. was measured using an ISOMET 2014 device. In all the experiments, the geopolymer foams were obtained by adding aluminium powder and several combinations: silica fume and fine sand reinforced by short basalt fibres. Curing was carried out at room temperature and then in a furnace at 70 degrees C. After the curing process, the properties of the samples were tested at 7 and 28 days. The results show that the thermal conductivity, porosity, compressive strength, flexural strength and density for all of the tests ranged in the following values: 0.13 - 0.359 W center dot m(-1)center dot K-1; 41.8 - 62.5 %; 1.94 - 9 MPa; 0.96 - 2.93 MPa; 546 - 1028 kg center dot m(-3), respectively. It was proven that the filler in the geopolymer foams has a significant influence on the mechanical and physical properties of the tested samples.cs
dc.format.extent9 strancs
dc.identifier.WebofScienceResearcherIDAAA-6445-2020 Hájková, Pavlína
dc.identifier.doi10.13168/cs.2019.0032
dc.identifier.urihttps://dspace.tul.cz/handle/15240/154330
dc.identifier.urihttp://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=1288
dc.language.isocscs
dc.publisherUNIV CHEMISTRY & TECHNOLOGY, PRAGUE, TECHNICKA 5, PRAGUE 6, DEJVICE 166 28, CZECH REPUBLIC
dc.relation.ispartofCERAMICS-SILIKATY
dc.subjectGeopolymercs
dc.subjectporositycs
dc.subjectAluminium Powdercs
dc.subjectBasalt Fibrescs
dc.subjectMetakaolincs
dc.subjectSilica Fumecs
dc.titleTHERMAL CONDUCTIVITY OF REINFORCED GEOPOLYMER FOAMScs
local.citation.epage373
local.citation.spage365
local.relation.issue4
local.relation.volume63
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