Deformation and flow driven by osmotic processes in porous materials: application to bituminised waste materials

Research output: Contribution to journalArticlepeer-review

Standard

Deformation and flow driven by osmotic processes in porous materials: application to bituminised waste materials. / Mokni, Nadia; Olivella, S.; Valcke, Elie; Mariën, An; Smets, Steven; Li, Xiang Ling.

In: Transport in Porous Media, Vol. 86, 02.2011, p. 665-692.

Research output: Contribution to journalArticlepeer-review

Author

Bibtex - Download

@article{2e101e9e8b0245d997417ca5d4348055,
title = "Deformation and flow driven by osmotic processes in porous materials: application to bituminised waste materials",
abstract = "This paper presents a coupled Chemo-Hydro-Mechanical (CHM) analysis of the behaviour of leached Bituminized Waste (BW) materials. Under geological disposal conditions the main factor that affects the long-term behaviour of this kind of materials is water uptake. First, the long-term behavior of BW in contact with water has been studied. A formulation has been proposed for the analysis of deformation induced by dissolution of salts in porous media in contact with water. The equations include the effect of coupled transport phenomena and the formulation has been included as an extension in the coupled THM program CODE_BRIGHT. The impact of osmotic forces on the swelling of the material has been investigated by simulating water uptake swelling tests under confined conditions. The numerical analysis has proven to be able to furnish a satisfactory representation of the main observed patterns of the behaviour. A sensitivity analysis has also been carried out to examine the effect of various key parameters.",
keywords = "intermediate level radioactive waste, bituminized radioactive waste, Eurobitum, geological disposal, Boom Clay, osmosis, pressure increase, swelling, NaNO3, NaNO3 leaching, CODE_BRIGHT, THM modeling, CHM behavior",
author = "Nadia Mokni and S. Olivella and Elie Valcke and An Mari{\"e}n and Steven Smets and Li, {Xiang Ling}",
note = "Score = 10",
year = "2011",
month = feb,
doi = "10.1007/s11242-010-9644-2",
language = "English",
volume = "86",
pages = "665--692",
journal = "Transport in Porous Media",
issn = "0169-3913",
publisher = "Springer",

}

RIS - Download

TY - JOUR

T1 - Deformation and flow driven by osmotic processes in porous materials: application to bituminised waste materials

AU - Mokni, Nadia

AU - Olivella, S.

AU - Valcke, Elie

AU - Mariën, An

AU - Smets, Steven

AU - Li, Xiang Ling

N1 - Score = 10

PY - 2011/2

Y1 - 2011/2

N2 - This paper presents a coupled Chemo-Hydro-Mechanical (CHM) analysis of the behaviour of leached Bituminized Waste (BW) materials. Under geological disposal conditions the main factor that affects the long-term behaviour of this kind of materials is water uptake. First, the long-term behavior of BW in contact with water has been studied. A formulation has been proposed for the analysis of deformation induced by dissolution of salts in porous media in contact with water. The equations include the effect of coupled transport phenomena and the formulation has been included as an extension in the coupled THM program CODE_BRIGHT. The impact of osmotic forces on the swelling of the material has been investigated by simulating water uptake swelling tests under confined conditions. The numerical analysis has proven to be able to furnish a satisfactory representation of the main observed patterns of the behaviour. A sensitivity analysis has also been carried out to examine the effect of various key parameters.

AB - This paper presents a coupled Chemo-Hydro-Mechanical (CHM) analysis of the behaviour of leached Bituminized Waste (BW) materials. Under geological disposal conditions the main factor that affects the long-term behaviour of this kind of materials is water uptake. First, the long-term behavior of BW in contact with water has been studied. A formulation has been proposed for the analysis of deformation induced by dissolution of salts in porous media in contact with water. The equations include the effect of coupled transport phenomena and the formulation has been included as an extension in the coupled THM program CODE_BRIGHT. The impact of osmotic forces on the swelling of the material has been investigated by simulating water uptake swelling tests under confined conditions. The numerical analysis has proven to be able to furnish a satisfactory representation of the main observed patterns of the behaviour. A sensitivity analysis has also been carried out to examine the effect of various key parameters.

KW - intermediate level radioactive waste

KW - bituminized radioactive waste

KW - Eurobitum

KW - geological disposal

KW - Boom Clay

KW - osmosis

KW - pressure increase

KW - swelling

KW - NaNO3

KW - NaNO3 leaching

KW - CODE_BRIGHT

KW - THM modeling

KW - CHM behavior

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_112197

UR - http://knowledgecentre.sckcen.be/so2/bibref/7841

U2 - 10.1007/s11242-010-9644-2

DO - 10.1007/s11242-010-9644-2

M3 - Article

VL - 86

SP - 665

EP - 692

JO - Transport in Porous Media

JF - Transport in Porous Media

SN - 0169-3913

ER -

ID: 358955