Microbially-induced deterioration of concrete from hydroelectric power plants – an initial study
Autori
Lješević, MarijaGojgić-Cvijović, Gordana
Stanimirović, Bojana
Beškoski, Vladimir
Brčeski, Ilija
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Microorganisms can grow on the surface of concrete and inside its pores and microcracks, producing different metabolites. Microbial metabolites, particularly acids, degrade concrete components and enhance its deterioration by abiotic factors. Deterioration of concrete is a serious problem worldwide since it affects construction functionality and requires high maintenance costs.
This paper presents microbiological and chemical analyses of 12 concrete samples originating from
6 hydroelectric power plants in Serbia, investigated in order to evaluate the key chemical factors
affecting microbial growth on concrete. In most of the concrete samples, microorganisms from all
examined groups were present in high numbers (bacteria 8.64 × 103–3.4 × 108, fungi 9 × 102–2.08
× 106, sulphur-oxidising bacteria 16.8–2.5×104 CFU/g). The high number and the presence of various
physiological groups of microorganisms indicate the high intensity of deterioration caused by
biological sources. Values of... pH of the concrete samples were in the range 8.46–11.23, Ca content
5.43–19.93%, Fe 151–61100 ppm, sulphate 37.4–623.7 ppm and chloride 96.3–914.1 ppm. Correlation analysis between microbiological and chemical factors indicated a statistically significant strong negative correlation between sulphur-oxidising bacteria and pH (–0.759, p < 0.01).
Ključne reči:
concrete corrosion / sulphur-oxidising bacteria / pH / microorganisms / biodeteriorationIzvor:
Journal of Environmental Protection and Ecology, 2019, 20, 3, 1180-1188Izdavač:
- Balkan Environmental Association
Finansiranje / projekti:
- Simultana bioremedijacija i soilifikacija degradiranih prostora, za očuvanje prirodnih resursa biološki aktivnih supstanci i razvoj i proizvodnju biomaterijala i dijetetskih proizvoda (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43004)
- Korelacija strukture i osobina prirodnih i sintetičkih molekula i njihovih kompleksa sa metalima (RS-MESTD-Basic Research (BR or ON)-172017)
URI
http://www.jepe-journal.info/journal-content/vol-20-no-3https://cer.ihtm.bg.ac.rs/handle/123456789/3947
Institucija/grupa
IHTMTY - JOUR AU - Lješević, Marija AU - Gojgić-Cvijović, Gordana AU - Stanimirović, Bojana AU - Beškoski, Vladimir AU - Brčeski, Ilija PY - 2019 UR - http://www.jepe-journal.info/journal-content/vol-20-no-3 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/3947 AB - Microorganisms can grow on the surface of concrete and inside its pores and microcracks, producing different metabolites. Microbial metabolites, particularly acids, degrade concrete components and enhance its deterioration by abiotic factors. Deterioration of concrete is a serious problem worldwide since it affects construction functionality and requires high maintenance costs. This paper presents microbiological and chemical analyses of 12 concrete samples originating from 6 hydroelectric power plants in Serbia, investigated in order to evaluate the key chemical factors affecting microbial growth on concrete. In most of the concrete samples, microorganisms from all examined groups were present in high numbers (bacteria 8.64 × 103–3.4 × 108, fungi 9 × 102–2.08 × 106, sulphur-oxidising bacteria 16.8–2.5×104 CFU/g). The high number and the presence of various physiological groups of microorganisms indicate the high intensity of deterioration caused by biological sources. Values of pH of the concrete samples were in the range 8.46–11.23, Ca content 5.43–19.93%, Fe 151–61100 ppm, sulphate 37.4–623.7 ppm and chloride 96.3–914.1 ppm. Correlation analysis between microbiological and chemical factors indicated a statistically significant strong negative correlation between sulphur-oxidising bacteria and pH (–0.759, p < 0.01). PB - Balkan Environmental Association T2 - Journal of Environmental Protection and Ecology T1 - Microbially-induced deterioration of concrete from hydroelectric power plants – an initial study VL - 20 IS - 3 SP - 1180 EP - 1188 UR - https://hdl.handle.net/21.15107/rcub_cer_3947 ER -
@article{ author = "Lješević, Marija and Gojgić-Cvijović, Gordana and Stanimirović, Bojana and Beškoski, Vladimir and Brčeski, Ilija", year = "2019", abstract = "Microorganisms can grow on the surface of concrete and inside its pores and microcracks, producing different metabolites. Microbial metabolites, particularly acids, degrade concrete components and enhance its deterioration by abiotic factors. Deterioration of concrete is a serious problem worldwide since it affects construction functionality and requires high maintenance costs. This paper presents microbiological and chemical analyses of 12 concrete samples originating from 6 hydroelectric power plants in Serbia, investigated in order to evaluate the key chemical factors affecting microbial growth on concrete. In most of the concrete samples, microorganisms from all examined groups were present in high numbers (bacteria 8.64 × 103–3.4 × 108, fungi 9 × 102–2.08 × 106, sulphur-oxidising bacteria 16.8–2.5×104 CFU/g). The high number and the presence of various physiological groups of microorganisms indicate the high intensity of deterioration caused by biological sources. Values of pH of the concrete samples were in the range 8.46–11.23, Ca content 5.43–19.93%, Fe 151–61100 ppm, sulphate 37.4–623.7 ppm and chloride 96.3–914.1 ppm. Correlation analysis between microbiological and chemical factors indicated a statistically significant strong negative correlation between sulphur-oxidising bacteria and pH (–0.759, p < 0.01).", publisher = "Balkan Environmental Association", journal = "Journal of Environmental Protection and Ecology", title = "Microbially-induced deterioration of concrete from hydroelectric power plants – an initial study", volume = "20", number = "3", pages = "1180-1188", url = "https://hdl.handle.net/21.15107/rcub_cer_3947" }
Lješević, M., Gojgić-Cvijović, G., Stanimirović, B., Beškoski, V.,& Brčeski, I.. (2019). Microbially-induced deterioration of concrete from hydroelectric power plants – an initial study. in Journal of Environmental Protection and Ecology Balkan Environmental Association., 20(3), 1180-1188. https://hdl.handle.net/21.15107/rcub_cer_3947
Lješević M, Gojgić-Cvijović G, Stanimirović B, Beškoski V, Brčeski I. Microbially-induced deterioration of concrete from hydroelectric power plants – an initial study. in Journal of Environmental Protection and Ecology. 2019;20(3):1180-1188. https://hdl.handle.net/21.15107/rcub_cer_3947 .
Lješević, Marija, Gojgić-Cvijović, Gordana, Stanimirović, Bojana, Beškoski, Vladimir, Brčeski, Ilija, "Microbially-induced deterioration of concrete from hydroelectric power plants – an initial study" in Journal of Environmental Protection and Ecology, 20, no. 3 (2019):1180-1188, https://hdl.handle.net/21.15107/rcub_cer_3947 .