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Insight into the effects of clay mineralogy on the cyclic behavior of silt–clay mixtures

Beroya-Eitner, Mary Antonette (2009)
Insight into the effects of clay mineralogy on the cyclic behavior of silt–clay mixtures.
In: Engineering Geology, 106 (3-4)
Artikel, Bibliographie

Kurzbeschreibung (Abstract)

Results of a systematic testing program showed that the cyclic behavior of silt–clay mixtures is greatly influenced by the dominant clay minerals in the mixture. In particular, it was demonstrated that given the same amount of clay/clay mineral and/or same value of plasticity index, the montmorillonitic soils have the highest cyclic strength, followed by the illitic soils, and then by the kaolinitic soils. Moreover, the rate of increase in cyclic strength with increasing % clay mineral and PI is again the highest in the montmorillonitic soil, lowest in the kaolinitic soil and intermediate in the illitic soil. Therefore, without considering clay mineralogy, the % clay fraction, % clay mineral and plasticity index are unreliable indicators of the liquefaction susceptibility of fine-grained soils. The differing adhesive bond strength each clay mineral develops with the silt particles is deemed to largely explain the observed differences in the response of the three different soil mixtures to cyclic loading.

Typ des Eintrags: Artikel
Erschienen: 2009
Autor(en): Beroya-Eitner, Mary Antonette
Art des Eintrags: Bibliographie
Titel: Insight into the effects of clay mineralogy on the cyclic behavior of silt–clay mixtures
Sprache: Englisch
Publikationsjahr: 16 Dezember 2009
Verlag: Elsevier
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Engineering Geology
Jahrgang/Volume einer Zeitschrift: 106
(Heft-)Nummer: 3-4
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Kurzbeschreibung (Abstract):

Results of a systematic testing program showed that the cyclic behavior of silt–clay mixtures is greatly influenced by the dominant clay minerals in the mixture. In particular, it was demonstrated that given the same amount of clay/clay mineral and/or same value of plasticity index, the montmorillonitic soils have the highest cyclic strength, followed by the illitic soils, and then by the kaolinitic soils. Moreover, the rate of increase in cyclic strength with increasing % clay mineral and PI is again the highest in the montmorillonitic soil, lowest in the kaolinitic soil and intermediate in the illitic soil. Therefore, without considering clay mineralogy, the % clay fraction, % clay mineral and plasticity index are unreliable indicators of the liquefaction susceptibility of fine-grained soils. The differing adhesive bond strength each clay mineral develops with the silt particles is deemed to largely explain the observed differences in the response of the three different soil mixtures to cyclic loading.

Freie Schlagworte: Clay mineralogy, Clay behavior, Fine-grained soil, Liquefaction, Silt-clay mixture
Fachbereich(e)/-gebiet(e): 13 Fachbereich Bau- und Umweltingenieurwissenschaften
13 Fachbereich Bau- und Umweltingenieurwissenschaften > Institut für Geotechnik
Hinterlegungsdatum: 18 Dez 2020 09:06
Letzte Änderung: 18 Dez 2020 09:06
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