Evaluation of geotechnical properties of bentonite from Lieskovec deposit, Slovakia

Chemical and mineralogical composition and geotechnical properties of Ca2+-bentonite samples from Lieskovec deposit, Slovakia, are reported. The main mineral is Fe-montmorillonite. Its content as obtained by the methylene blue adsorption method is relatively low, 28 to 49%; however, it is the domina...

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Bibliographic Details
Published in:Applied clay science 2008-02, Vol.38 (3-4), p.297-303
Main Authors: Andrejkovičová, Slávka, Janotka, Ivan, Komadel, Peter
Format: Article
Language:English
Subjects:
Coefficient of permeability
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Engineering geology
Exact sciences and technology
Infrared spectroscopy
Mineralogy
Silicates
Water adsorption capacity
X-ray diffraction
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Summary:Chemical and mineralogical composition and geotechnical properties of Ca2+-bentonite samples from Lieskovec deposit, Slovakia, are reported. The main mineral is Fe-montmorillonite. Its content as obtained by the methylene blue adsorption method is relatively low, 28 to 49%; however, it is the dominant variable affecting geotechnical parameters of this bentonite. Rather low liquid limit values of 64–80% and water adsorption (Enslin test) data in a broad range of 123–606% were obtained. Permeability coefficients of the order of 10−11 m s−1 suggest the possible suitability of this bentonite for geosynthetic clay liners and other civil engineering applications.
ISSN:0169-1317
1872-9053
DOI:10.1016/j.clay.2007.04.004