Towards a methodology for the characterisation of the fabric of wet clays using X-ray scattering
| Autor: | Georgios Birmpilis, Reza Ahmadi-Naghadeh, Jelke Dijkstra |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
lcsh:GE1-350
Materials science Consolidation (soil) Scattering Micromechanics 020101 civil engineering 02 engineering and technology 021001 nanoscience & nanotechnology Superhydrophobic coating 0201 civil engineering Nano Slurry Kaolinite Sample preparation Composite material 0210 nano-technology lcsh:Environmental sciences |
| Zdroj: | E3S Web of Conferences, Vol 92, p 01005 (2019) |
| ISSN: | 2267-1242 |
| Popis: | X-ray scattering is a promising non-invasive technique to study evolving nano- and micromechanics in clays. This study discusses the experimental considerations and a successful method to enable X-ray scattering to study clay samples at two extreme stages of consolidation. It is shown that the proposed sample environment comprising flat capillaries with a hydrophobic coating can be used for a wide range of voids ratios ranging from a clay suspension to consolidated clay samples, that are cut from larger specimens of reconstituted or natural clay. The initial X-ray scattering results using a laboratory instrument indicate that valuable information on, in principal evolving, clay fabric can be measured. Features such as characteristic distance between structural units and particle orientations are obtained for a slurry and a consolidated sample of kaolinite. Combined with other promising measurement techniques from Materials Science the proposed method will help advance the contemporary understanding on the behaviour of dense colloidal systems of clay, as it does not require detrimental sample preparation |
| Databáze: | OpenAIRE |
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