| Issue |
MATEC Web Conf.
Volume 282, 2019
4th Central European Symposium on Building Physics (CESBP 2019)
|
|
|---|---|---|
| Article Number | 02067 | |
| Number of page(s) | 5 | |
| Section | Regular Papers | |
| DOI | https://doi.org/10.1051/matecconf/201928202067 | |
| Published online | 06 September 2019 | |
Identification of biofilm composition covering lime-based materials
1 Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7/2077, 166 29 Prague 6, Czech Republic
2 Department of Sanitary and Ecological Engineering, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7/2077, 166 29 Prague 6, Czech Republic
* Corresponding author: nabelkova@fsv.cvut.cz
This paper aims at identification of biofilms composition taken from lime and lime-cement plasters. The samples of plasters were exposed to natural weathering for more than three years to weather conditions of Prague as a representative of Central European continental climate. After biofilms sampling, they were cultivated using specific nutrient solutions and analysed using various types of microscopes. It was found, that the plasters were covered mostly by green algae (Hematococcus pluvialis, Klebsormidium sp., Trebouxiophyceae, Chlorophyceae and Chlorellaceae), cyanobacteria (Nostoc, Anabaena, Leptolyngbya, Phormidium, Plectonema, Synechococcales and Oscillatoriale), moulds (Aspergillus niger, Alternaria) and moss (Ceratodon purpureus). Possible influence of these organisms on hygrothermal behaviour of the base materials is subsequently discussed.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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