Methods for assessment and identification of dispersive soils

Dispersive clay soils represent a specific type of fine‐grained soils, which can not be determined by the visual classification or using standard identification ‐ classification tests such as granulometric (particle size) analysis, plasticity tests and similar. The paper gives an overview of the res...

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Bibliographic Details
Published in:ce/papers 2018-06, Vol.2 (2-3), p.205-210
Main Authors: DJOKOVIĆ, Ksenija, ČAKI, Laslo, ŠUŠIĆ, Nenad, HADŽI‐NIKOVIĆ, Gordana
Format: Article
Language:English
Subjects:
Crumb test
Dispersible test
Dispersive clays
Double hydrometer test
Pinhole test
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Summary:Dispersive clay soils represent a specific type of fine‐grained soils, which can not be determined by the visual classification or using standard identification ‐ classification tests such as granulometric (particle size) analysis, plasticity tests and similar. The paper gives an overview of the results of testing dispersivity of fine‐grained soil using other classification tests: the crumb test, the double hydrometer test and the pinhole test. Tests were conducted on samples: sandy clay embankment dams of “Rovni”, loess from different locations (Zemun, Novi Beograd, Titel, Kelebija, Srbobran, Slankamen, Ruma, Mali Iđoš) and kaolinite sandy clay deposits Grabež ‐ Aranđelovac. In order to improve soil properties, special consideration was given to the influence of soil compaction to dispersion properties. However, dispersion tests obtained with the use of the pinhole method at different degrees of compaction showed that the degree of compaction has no significant effect on the soil behavior, i.e. its class of dispersion.
ISSN:2509-7075
2509-7075
DOI:10.1002/cepa.672