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The effect of ambient humidity on the stiffness and strength of a hyper-compacted silty clay for earth building [dataset] Open Access

The effect of pore suction and water content on the engineering properties of partially saturated soils has been extensively studied by geotechnical researchers. It is well known that unsaturated soils become stiffer, stronger and less permeable as suction increases and saturation decreases. The results from these studies are however not directly applicable to the analysis of earth buildings, which are made of coarser soils compacted to a much denser state. The present paper investigates the mechanical behaviour of a low porosity earth building material equalised at different degrees of saturation. Cylindrical samples were statically compacted to a high pressure of 100 MPa at the optimum water content. This resulted in a dry density of about 2.3 g/cm3, corresponding to a porosity of between 13% and 14%, which is uncommonly low for standard geotechnical materials. After compaction, the samples were equalised at different humidity levels inside a climatic chamber before being subjected to triaxial tests under different confinement. Results from these tests enabled the definition of the material stiffness and strength envelopes at different levels of ambient humidity.

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Resource type
Dataset
Contributors
Creator: Cuccurullo, Alessia 1
Contact person: Cuccurullo, Alessia 1
Gallipoli, Domenico 2
Bruno, Agostino Walter 2
La Borderie, Christian 2
Augarde, Charles 3
Hughes, Paul 3
1 Durham University, UK /Université de Pau et des Pays de l’Adour (France)
2 Université de Pau et des Pays de l’Adour (France)
3 Durham University (UK)
Funder
European Commission via the Marie Skłodowska- Curie Innovative Training Networks (ITN-ETN) pro- ject TERRE 'Training Engineers and Researchers to Rethink geotechnical Engineering for a low carbon future' (H2020-MSCA-ITN-2015-675762)
Research methods
Other description
Keyword
Raw earth
Hyper-compaction
Mechanical behaviour
Suction
Subject
Location
Language
Cited in
Identifier
ark:/32150/r29593tv142
doi:10.15128/r29593tv142
Rights
Creative Commons Attribution 4.0 International (CC BY)

Publisher
Durham University
Date Created

File Details

Depositor
A. Cuccurullo
Date Uploaded
Date Modified
12 June 2019, 13:06:17
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File format: zip (ZIP Format)
Mime type: application/zip
File size: 132167
Last modified: 2019:05:27 16:01:34+01:00
Filename: Dataset.zip
Original checksum: 52471e71b6f60be97050c7d2f76b2bae
Activity of users you follow
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User N. Syrotiuk has updated The effect of ambient humidity on the stiffness and strength of a hyper-compacted silty clay for earth building [dataset] 9 months ago
User N. Syrotiuk has updated The effect of ambient humidity on the stiffness and strength of a hyper-compacted silty clay for earth building [dataset] 9 months ago