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Concrete specimens biodeterioration by bacteria of Acidithiobacillus thiooxidans and Desulfovibrio genera

Harbuľáková, Vlasta and Eštoková, Adriana and Luptáková, Alena and Števulová, Nadežda and Janák, Gabriel (2009) Concrete specimens biodeterioration by bacteria of Acidithiobacillus thiooxidans and Desulfovibrio genera. Pollack Periodica, 4 (1). pp. 83-92. ISSN 1788-1994

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Abstract

Biodeterioration can be seen as a process, which decreases value of materials and constructions and has been defined as the deterioration of materials of economic importance by organisms. Since the discovery bacterial genus Acidithiobacillus caused rapid corrosion of concrete especially Acidithiobacillus thiooxidans .This paper presents the results of concrete specimens’ biodeterioration study by bacteria Acidithiobacillus thiooxidans and Desulfovibrio genera under model conditions. Biodeterioration was carried out in laboratory reactor, where simultaneous effect of Acidithiobacillus thiooxidans and Desulfovibrio genera happened. The pH values of leachate, mass of concrete specimens change, Ca and Fe content in leachate were evaluated. After experiment the morphology of corroded surface were observed by scanning electron microscopy.

Item Type: Article
Subjects: T Technology / alkalmazott, műszaki tudományok > TA Engineering (General). Civil engineering (General) / általános mérnöki tudományok
Depositing User: Erika Bilicsi
Date Deposited: 04 Nov 2017 10:01
Last Modified: 04 Nov 2017 10:01
URI: http://real.mtak.hu/id/eprint/66964

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