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Erschienen in: Geotechnical and Geological Engineering 5/2020

21.05.2020 | Original Paper

Compressibility and the Effects of Structure of Tropical Clay in Incremental Loading Oedometer Tests

verfasst von: Ismail Adeniyi Okewale

Erschienen in: Geotechnical and Geological Engineering | Ausgabe 5/2020

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Abstract

Several problems in geotechnical and geological engineering have been analysed based on the properties of soil obtained from compression tests and the behaviour in compression is a fundamental aspect of deformation in geomaterials. A detailed analysis has been made into the mechanics of compression of Nigeria tropical clay in incremental loading oedometer for the soils in the reconstituted and natural states, allowing for the effects of geological structure. In addition to classification and index tests, microstructure and geochemistry were studied using SEM equipped with EDS and mineralogical indices were investigated using XRD for the soils retrieved from different depths and two locations. The soils are heterogeneous and the spatial variability is low. The soils have low plasticity and clay minerals are dominated by kaolinites. The soils converged to unique intrinsic normal compression lines showing no transitional mode of behaviour. The intrinsic behaviour of the soils was consistent with fines content, plasticity and clay minerals. The finer and better-graded soil with higher fines content, plasticity and clay minerals content have higher compressibility. The effects of structure, which is the degree of enhanced resistance of the natural sample in compression, were positive and small to medium.

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Metadaten
Titel
Compressibility and the Effects of Structure of Tropical Clay in Incremental Loading Oedometer Tests
verfasst von
Ismail Adeniyi Okewale
Publikationsdatum
21.05.2020
Verlag
Springer International Publishing
Erschienen in
Geotechnical and Geological Engineering / Ausgabe 5/2020
Print ISSN: 0960-3182
Elektronische ISSN: 1573-1529
DOI
https://doi.org/10.1007/s10706-020-01369-4

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