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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Cuisinier, Olivier
École Polytechnique Fédérale de Lausanne
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2023Statistical and Predictive Analyses of the Strength Development of a Cement-Treated Clayey Soilcitations
- 2022Energy pile skin friction at interface in clays under temperature cyclescitations
- 2018Impact of Severe Climate Conditions on Loss of Mass, Strength, and Stiffness of Compacted Fine-Grained Soils–Portland Cement Blendscitations
- 2018Impact of Severe Climate Conditions on Loss of Mass, Strength, and Stiffness of Compacted Fine-Grained Soils–Portland Cement Blendscitations
- 2014Long term behavior of lime-treated clayey soil exposed to successive drying and wettingcitations
- 2014Impact of high-pH fluid circulation on long term hydromechanical behaviour and microstructure of compacted clay from the laboratory of Meuse-Haute Marne (France)citations
- 2014Weathering of a lime-treated clayey soil by drying and wetting cyclescitations
- 2014Chemo-mechanical modelling of lime treated soilscitations
- 2013Identification of coupling parameters between shear strength behaviour of compacted soils and chemical's effects with an evolutionary-based data mining techniquecitations
- 2011Microstructure and hydraulic conductivity of a compacted lime-treated soilcitations
- 2010Chemo-mechanical couplings in compacted argillite submitted to high-pH environment
- 2009Shear strength behaviour of compacted clayey soils percolated with an alkaline solutioncitations
- 2008Microstructure of a compacted soil submitted to an alkaline PLUMEcitations
- 2006Suction Induced Effects on the Fabric of a Structured Soilcitations
- 2004Fabric evolution during hydromechanical loading of a compacted siltcitations
Places of action
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article
Weathering of a lime-treated clayey soil by drying and wetting cycles
Abstract
Lime treatment induces several time-dependent physico-chemical processes (cation exchange, pozzolanic reactions, etc.) that result in the bonding of soil particles. This treatment can reduce the swelling properties of clays and improve their strength. Nevertheless, these positive effects of lime-treatment could be altered by weathering in the very long term. In this paper, the effects of successive drying/wetting cycles on the hydro-mechanical properties of a lime-treated clayey soil are considered. Quicklime-treated samples were subjected to successive controlled-suction (osmotic technique) drying/wetting cycles; and also severe hydric cycles corresponding to an alternation of oven drying and saturation. The effect of quicklime dosage and curing time were considered. The results show a progressive increase of the swelling properties of the material and a progressive loss of strength with increasing number of drying/wetting cycles. The extent of the degradation is directly related to the amount of added quicklime and the amplitude of the suction cycles. Mercury intrusion porosimetry tests show that successive cycles lead to a progressive change of the micro-fabric, thus explaining partly the degradation of macroscopic properties. This study shows that weathering by successive drying/wetting cycles is likely to significantly alter the properties of a lime-treated soil, thus weathering effects should be accounted for the long term design of treated soil structure.