Evaluation of the antimicrobial efficiency of slag based composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F19%3A10242460" target="_blank" >RIV/61989100:27350/19:10242460 - isvavai.cz</a>

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1088/1757-899X/566/1/012030/pdf" target="_blank" >https://iopscience.iop.org/article/10.1088/1757-899X/566/1/012030/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1757-899X/566/1/012030" target="_blank" >10.1088/1757-899X/566/1/012030</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation of the antimicrobial efficiency of slag based composites

Popis výsledku v původním jazyce

Degradation of cement mortar composites occurs due to a variety of causes such as corrosion (sulphate or chloride attack) cracking or shrinkage. Chemical agents often play a major role in corrosion processes, however recent research has revealed the importance of biological agents. Microbiological corrosion is caused by the presence and activities of microorganisms, including algae, bacteria, yeasts and fungi. These microorganisms produce substances like biogenic organic and mineral acids that can disrupt the matrix of mortar composites. The most effective method for improving the resistance of cement based composites is the addition of pozzolans like blast furnace slag. Slag is often used in preparation of cement composites to improve the acid resistance, impermeability and crack resistance of mortars. This article presents the investigation of antimicrobial efficiency of blast furnace slag regarding the selected species of bacteria (Pseudomonas aeruginosa, Micrococcus luteus), yeasts (Candida albicans, Saccharomyces cerevisiae) and algae (Chlorella vulgaris). Antimicrobial properties were studied on mortars with different share of slag (65% - 95%). Antimicrobial efficiency for the tested species of microorganisms was found moderate to low.

Název v anglickém jazyce

Evaluation of the antimicrobial efficiency of slag based composites

Popis výsledku anglicky

Degradation of cement mortar composites occurs due to a variety of causes such as corrosion (sulphate or chloride attack) cracking or shrinkage. Chemical agents often play a major role in corrosion processes, however recent research has revealed the importance of biological agents. Microbiological corrosion is caused by the presence and activities of microorganisms, including algae, bacteria, yeasts and fungi. These microorganisms produce substances like biogenic organic and mineral acids that can disrupt the matrix of mortar composites. The most effective method for improving the resistance of cement based composites is the addition of pozzolans like blast furnace slag. Slag is often used in preparation of cement composites to improve the acid resistance, impermeability and crack resistance of mortars. This article presents the investigation of antimicrobial efficiency of blast furnace slag regarding the selected species of bacteria (Pseudomonas aeruginosa, Micrococcus luteus), yeasts (Candida albicans, Saccharomyces cerevisiae) and algae (Chlorella vulgaris). Antimicrobial properties were studied on mortars with different share of slag (65% - 95%). Antimicrobial efficiency for the tested species of microorganisms was found moderate to low.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20700 - Environmental engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

IOP Conference Series: Materials Science and Engineering. Volume 566

ISBN

—

ISSN

1757-8981

e-ISSN

1757-899X

Počet stran výsledku

7

Strana od-do

7

Název nakladatele

IOP Publishing

Místo vydání

Bristol

Místo konání akce

Tatranská Lomnica

Datum konání akce

25. 4. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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