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An experimental study on Ypresian clays – one of the potential deep and sedimentary clay formations in Belgium for the geological disposal of heat-emitting radioactive waste – has been undertaken to systematically study anisotropic features on the thermal conductivity using a setup with thermal flux measurement. A careful pre-conditioning protocol before the thermal tests has been followed to ensure a very high degree of saturation and the closure of fissures/gaps along bedding planes. Thermal conductivity data with this improved pre-conditioning protocol allowed obtaining results consistent with the values reported when using back-analysis in a constant volume cell with fully saturated material.
CitationRomero, E., Sau, N., Lima, A., Van Baelen, H., Sillen, X., Li, X.L. Anisotropic features on the thermal conductivity of a deep argillaceous formation. A: Pan-American Conference on Soil Mechanics and Geotechnical Engineering. "Proceedings of the 15th Pan-American Conference on Soil Mechanics and Geotechnical Engineering". Buenos Aires: IOS Press, 2015, p. 919-926.
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