11 KB319 KB11 KB199219991999Ducman, VilmaKovačević, Mihaela3 straniletnik:33številka:5str. 377-379ISSN:1318-0010COBISSID:166570URN:URN:NBN:SI:doc-BVDTIE20slInštitut za kovinske materiale in tehnologijeŽelezarna JeseniceŽelezarna RavneŽelezarna ŠtoreKovine zlitine tehnologijeagregatigranulepenjenjestekloVisokoporozne granule iz odpadnega stekla| High porosity granules produced from waste glass|The potential use of waste glass for the production of light-weight aggregate has been studied. Granules made from finely ground glass together with foaming agents have been formed. The temperature interval of foaming has been determined by means of a hot stage microscope by which the foaming process can be easily observed. The subsequently dried granules have been fired at different temperatures for different periods of time and the properties of so-obtained granules such as density, type of porosity (open, closed), and water absorption have been determined. From the results we can conclude that the granules could be used as an aggregate for the production of light-weight bricks or blocks. Further investigations need to be performed regarding the properties of such light-weight bricks or blocks with emphasis on their mechanical properties and durabilityV prispevku je podana možnost uporabe odpadnega stekla za proizvodnjo lahkega agregata. Iz drobno pomletega stekla z dodatkom penilca smo oblikovali granule. Temperaturni interval penjenja smo določili z visokotemperaturnim mikroskopom, s katerim smo lahko spremljali proces penjenja. V tako določenem temperaturnem obdobju smo nato posušene granule žgali pri različnih temperaturah in časih. Pri žganih granulah smo določili gostoto, vrsto poroznosti (odprta, zaprta) in vpijanje vode. Iz rezultatov menimo, da lahko takšne granule uporabljamo kot agregat pri pripravi lahkih in toplotno izolacijskih opek oziroma plošč, vendar bodo na tako pripravljenih opekah oziroma ploščah potrebne nadaljnje preiskave s poudarkom namehanskih lastnostih in trajnostihTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaInštitut za kovinske materiale in tehnologije