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Samoceljenje betona zaradi delovanja bakterij = Bacterial-based self-healing of concreteŠtukovnik, Petra, 1984- ; Bokan-Bosiljkov, Violeta ; Marinšek, Marjan, kemijski inženirV prispevku poročamo o rezultatih prvih preiskav biobetona, ki ima lastnosti samoceljenja. Beton smo izdelali z uporabo dodatka za samoceljenje, kapsul z bakterijami in hrano. Znano je, da lahko ... nekateri mikroorganizmi, zlasti bakterije, s svojo presnovo obarjajo karbonate. Kristali obarjenega kalcijevega karbonata polnijo razpoke, ki se oblikujejo na površini ali v notranjosti betona, ter jih postopoma popolnoma zaprejo. S tem se poveča odpornost betona proti vdoru kapljevin in z njimi škodljivih snovi. Življenjska doba betona je lahko zato bistveno podaljšana. Obarjen kalcijev karbonat pa lahko izboljša tudi mehanske lastnosti betona. Na pripravljenih vzorcih smo spremljali rezultate delovanja bakterij v različnih okoljih, saj je aktivnost uporabljene vrste bakterij odvisna od pogojev okolja, v katerem je biobeton. Obarjanju CaCO3 smo sledili s pomočjo mikroskopskih tehnik (optična in SEM-EDS mikroskopija), trdnost betona pa smo določili na prizmatičnih vzorcih. Rezultati preiskav so potrdili sovisnost med učinkovitostjo samoceljenja biobetona in pogoji okolja. Pokazali smo tudi, da je CaCO3, ki se obarja v razpoki, sposoben zagotoviti določeno natezno trdnost v območju samozaceljene razpoke.Source: Gradbeni vestnik : glasilo Zveze društev gradbenih inženirjev in tehnikov Slovenije. - ISSN 0017-2774 (Letn. 69, jan. 2020, str. 2-7)Type of material - article, component part ; adult, seriousPublish date - 2020Language - slovenianCOBISS.SI-ID - 9044321
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source: Gradbeni vestnik : glasilo Zveze društev gradbenih inženirjev in tehnikov Slovenije. - ISSN 0017-2774 (Letn. 69, jan. 2020, str. 2-7)
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Year | Impact factor | Edition | Category | Classification | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Štukovnik, Petra, 1984- | 31255 |
Bokan-Bosiljkov, Violeta | 10379 |
Marinšek, Marjan, kemijski inženir | 14115 |
Source: Personal bibliographies
and: SICRIS
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