Permeability changes in Boom clay with temperature

Details Permeability changes in Boom clay with temperature Permeability changes in Boom clay with temperature

2011-12-29

arxiv.org/abs/1112.6396v1

International Conference and Workshop "Impact of Thermo-Hydro-Mechanical-Chemical (THMC) processes on the safety of undergro

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

In the framework of research into radioactive waste disposal, this paper presents some tests carried out to investigate the effects of temperature on the changes in permeability of Boom between 20 and 90 deg C. Constant head permeability tests were carried out in a high pressure isotropic compression tests at various temperature and isotropic stresses. The results show that the changes in permeability of Boom clay with temperature are only due to the changes in viscosity of free water with temperaure. This demonstrates on the one hand that the water involved in transfer at various temperatures is free water and on the other hand that there is apparently only few changes in the status of adsorbed water with respect to temperature between 20 and 90 deg C.

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