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Technology and Engineering
- ISSN: 2333-2581
- Modern Environmental Science and Engineering
Experimental Research of Building Materials Based on the Natural Cellulosic Fibers under Biogenic Acidic Exposition
Adriana Eštoková1, Alena Luptáková2, Martina Kovalčíková1 and Nadezda Stevulova1
1. Institute of Environmental Engineering, Faculty of Civil Engineering, Technical University of Kosice, Kosice, Slovakia
2. Institute of Geotechnics, Slovak Academy of Science, Kosice, Slovakia
Abstract: The paper is aimed at the study of the building materials based on the natural cellulosic fibers in aggressive environment. The fiber cement boards’ samples were analyzed in terms of dissolving the main cement matrix compounds representing by calcium and silicon leaching. Aggressive environment was represented by bacteria influence. The results indicate substantial differences on the leaching of calcium and silicon ions in presence of bacteria and without bacteria.
Key words: cement composite, sulphate-reducing bacteria, sulphur-oxidising bacteria, sulphuretum, leaching.
