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Wyszukujesz frazę "Izdebska-Mucha, D." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Pore space studies on Wartanian glacial till (Central Poland) polluted with petrol and diesel oil, based on mercury porosimetry
Autorzy:
Izdebska-Mucha, D.
Powiązania:
https://bibliotekanauki.pl/articles/2060225.pdf
Data publikacji:
2008
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
mercury porosimetry
petroleum contaminants
porosity
intrinsic permeability
Opis:
Air-dried samples of glacial till were polluted in the laboratory with petrol and diesel oil. A comparative analysis of natural and contaminated material was made on the basis of mercury porosimetry measurements. The investigation revealed relatively slight changes in the pore space of the polluted samples, which were as sociated with adsorption of hydrocarbons onto the soil particles rather than with microstructural change. Introduction of non-polar organic fluid into soil pores did not cause rearrangement of the natural soil structure. Due to the initial air-dried state of the soil material, these findings pertain to unsaturated soils only. These results contribute to the crucial, but still poorly recognized problem of the engineering geology properties of organic contaminated soils.
Źródło:
Geological Quarterly; 2008, 52, 2; 183-183
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of expansivity of Neogene clays and glacial tills from central Poland on the basis of suction tests
Autorzy:
Izdebska-Mucha, D.
Wójcik, E.
Powiązania:
https://bibliotekanauki.pl/articles/2059660.pdf
Data publikacji:
2015
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
expansive soil
neogene clays
glacial tills
suction
suction compression index
heave
Opis:
This paper presents the characteristics of the expansivity and quantitative prediction of heave of clay soils from Poland based on suction testing. 11 Neogene clays and 6 glacial tills, differing in genesis and plasticity, were analyzed to identify the expansive potential using eight empirical methods. The laboratory studies included measurements of soil-water characteristic curves and soil index properties. Data from water content, volume and suction measurements served to determine the suction compression index Ch and the suction-water content index Dh/Dw of the soils examined. The values of these indices are clearly dependent of the clay fraction content in tested soils. Compared with glacial tills, Neogene clays are expected to exhibit larger changes in volume due to changes in soil suction. Comparative results of the evaluation of expansivity suggest that the chosen classification methodologies provided consistent expansion ratings for glacial tills, while values for Neogene clays vary from low to very high. The lowest expansivity classes have been obtained from evaluation based on soil suction. The McKeen (1992) method has been adopted for calculations of the potential field heave of Neogene clays and glacial tills. In order to provide a rational estimation of expansive soil behavior, specialists should take into consideration the specific site and design features.
Źródło:
Geological Quarterly; 2015, 59, 3; 593--602
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Expansivity of Neogene clays and glacial tills from Central Poland
Autorzy:
Izdebska-Mucha, D.
Wójcik, E.
Powiązania:
https://bibliotekanauki.pl/articles/2059738.pdf
Data publikacji:
2014
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
expansive soil
neogene clays
glacial tills
index parameters
Opis:
The revision of classification methodologies for determination of soil expansivity revealed that parameters most frequently used for this purpose are: the liquid limit, plasticity index and swelling parameters which also predominate in older systems of expansive soil assessment, regarded as classical. Seventy-nine soil samples, including Neogene clays and glaciall tills from Central Poland, with a wide range of plasticity were examined for a comparative analysis of soil expansivity with a use of eight empirical methods. The study revealed that Neogene clays are mostly highly and very highly expansive, while glacial tills exhibit low to medium expansivity. Compared to classifications considering soil mineralogy indicators, those correlated solely to Atterberg limits and related parameters were found to overestimate soil expansivity. It is evident that the classifications are in better agreement for glacial tills than for clays. The comparison of mineral composition measured and predicted from swelling tests yielded consistent results.
Źródło:
Geological Quarterly; 2014, 58, 2; 281--290
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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