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ANTIFUNGAL EFFICIENCY OF SLAG BASED CEMENT COMPOSITES

Smolakova, M.; Estokova, A.; Vaclavik, V.
Abstract:
Blast furnace slag (BFS) is used for preparation of common cements, sulfate-resisting and chemical-resisting cements and cement mortars. Using BFS as a concrete or mortar addition results in several advantageous properties such as high resistance to acid attack (sulphuric, nitric acids), low chloride permeability, high durability and low capillary porosity. Because of these properties using BFS in cement composites can decrease the effect of biodegradation induced by various microorganisms. Bio-corrosion is caused by biogenic organic and mineral acids, which result from metabolic activity of microorganisms like fungi, bacteria or yeasts. In this article, the potential antifungal properties of BFS were analysed regarding the selected species of fungi (Cladosporium spp., Aspergillus niger and Penicillium glabrum). Antifungal efficiency was studied on cement composites with different share (65%, 75%, 85% and 95%) of BFS. Moderate antifungal effectivity of composites with slag was confirmed for two from three strains of studied fungi Cladosporium spp. and Aspergillus niger.
SGEM Research areas:
Year:
2018
Type of Publication:
In Proceedings
Keywords:
biodeterioration; blast furnace slag; cement; antifungal efficiency
Volume:
18
SGEM Book title:
18th International Multidisciplinary Scientific GeoConference SGEM 2018
Book number:
6.3
SGEM Series:
International Multidisciplinary Scientific GeoConference-SGEM
Pages:
27-34
Publisher address:
51 Alexander Malinov blvd, Sofia, 1712, Bulgaria
SGEM supporters:
Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
Period:
02-08 July, 2018
ISBN:
978-619-7408-52-2
ISSN:
1314-2704
Conference:
18th International Multidisciplinary Scientific GeoConference SGEM 2018, 02-08 July, 2018
DOI:
10.5593/sgem2018/6.3/S26.004
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