Abstract
The influence of temperature on the hydraulic properties of unsaturated clays is of major concern in the design of engineered barriers in underground repositories for high-level radioactive waste disposal. This paper presents an experimental study centred on the investigation of the influence of temperature on soil hydraulic properties related to water retention and permeability. Laboratory tests were conducted on artificially prepared unsaturated fabrics obtained from a natural kaolinitic-illitic clay. Special attention is given to the testing procedures involving controlled suction and temperature oedometer cells and the application of the vapour equilibrium technique at high temperatures. Retention curves at different temperatures show that total suction tends to reduce with increasing temperatures at constant water content. Temperature influence on water permeability is more relevant at low matric suctions corresponding to bulk water preponderance (inter-aggregate zone). Below a degree of saturation of 75% no clear effect is detected. Experimental data show that temperature dependence on permeability at constant degree of saturation and constant void ratio is smaller than what could be expected from the thermal change in water viscosity This behaviour suggests that phenomena such as porosity redistribution and thermo-chemical interactions, which alter clay fabric and pore fluid, can be relevant.
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Almanza, R., Castafleda, R. and Silva, G. (1995) Temperature-electrolyte effects on clay soil liners, in Proceedings of the 1st International Conference on Unsaturated Soils. Vol. 1 Paris, 1995 (edited by E. E. Alonso and P. Delage ). Balkema/Presses des Ponts et Chaussées. pp. 343–348.
Alonso, E. E. (1998) Succion y humedad en bases y explanadas de carreteras, in Proceedings of the Simposio Internacional sobre Drenaje Interno de Firmes y Explanadas. Granada, November 1998. pp. 3–55.
Cho, W. J., Lee, J. O. and Chun, K. S. (1999) The temperature effects on hydraulic conductivity of compacted bentonite, Applied Clay Science, 14, 47–58.
Constantz, J. (1991) Comparison of isothermal and isobaric water retention paths in nonswelling porous materials, Water Resour. Res. 12 (12), 3165–3170.
Delage, P, Sultan, N. and Cui, Y. J. (2000) On the thermal consolidation of Boom clay, Can. Geotech. J., 37, 343–354.
Fredlund, D. G. and Rahardjo, H. (1993) Soil mechanics for unsaturated soils, John Wiley and Sons, Inc. New York.
Fredlund, D. G. and Xing, A. (1994) Equations for the soil-water characteristic curve, Can. Geotech. J., 31, 521–532.
Gardner, W. R. (1956) Calculation of capillary conductivity from pressure plate outflow data, Soil Sci. Soc. Am. Proc., 20, 317–320.
Gens, A., García-Molina, A. J., Olivella, S., Alonso, E. E. and Huertas, F. (1998) Analysis of a full scale in situ test simulating repository conditions, Int. J. Numer. Anal. Meth. Geomech., 22, 515–548.
Grant, S. and Salehzadeh, A. (1996) Calculation of temperature effects on wetting coefficients of porous solids and their capillary pressure functions, Water Resour. Res., 32 (2), 261–270.
Haridasan, M. and Jensen, R. D. (1972) Effect of temperature on pressure head — water content relationship and conductivity of two soils, Soil Sci. Soc. Am. Proc., 36, 703–708.
Hopmans, J. W and Dane, J. H. (1986) Temperature dependence of soil hydraulic properties, Soil Sci. Soc. Am. J., 50, 4–9.
Horvath, A. L. (1985) Handbook of aqueous electrolyte solutions: physical properties, estimation and correlation methods, Ellis Horwood Limit, New York.
Jucâ, J. F. T. and Frydman, S. (1996) Experimental techniques. State of the art report, in Proceedings of the 1st International Conference on Unsaturated Soils. Vol. 3 Paris, 1995 (edited by E. E. Alonso and P. Delage). Balkema/Presses des Ponts et Chaussées. pp. 1257–1292.
Kanno, T., Fujita, T., Takeuchi, S., Ishikawa, H., Hara, K. and Nakano, M. (1999). Coupled thermo-hydro-mechanical modelling of bentonite buffer material, Int. J. Numer. Anal. Meth. Geomech., 23, 1281–1307.
Khemissa, M. (1998) Mesure de la perméabilité des argiles sous contrainte et température, Rev. Franç. Géotech., 82, 11–22.
Kunze, R. J. and Kirkham, D. (1962) Simplified accounting for membrane impedance in capillary conductivity determinations, Soil Sci. Soc. Am. Proc., 26, 421–426.
Lang, A. R. G. (1967) Osmotic coefficients and water potentials of sodium chloride solutions from 0°C to 40°C, Australian J. Chem., 20, 2017–2023.
Mohamed, A. M., Yong, R. N. and Cheung, S. C. H. (1992) Temperature dependence of soil water potential, Geot. Testing J., 15 (4), 330–339.
Nimmo, J. R. and Miller, E. E. (1986) The temperature dependence of isothermal moisture vs. potential characteristics of soils, Soil Sci. Soc. Am. J., 50, 1105–1113.
Philip, J. R. and de Vries, D. A (1957) Moisture movement in porous materials under temperature gradients, Trans. American Geophysical Union, 38 (2), 222–232.
Romero, E., Lloret, A. and Gens, A. (1995) Development of a new suction and temperature controlled oedometer cell, in Proceedings of the 1st International Conference on Unsaturated Soils. Vol. 2 Paris, 1995 (edited by E. E. Alonso and P. Delage ). Balkema/Presses des Ponts et Chaussées. pp. 553–559.
Romero, E. (1999) Characterisation and thermo-hydro-mechanical behaviour of unsaturated Boom clay: an experimental study. PhD Thesis, Universidad Politécnica de Cataluna.
Romero, E. and Vaunat, J. (2000) Retention curves of deformable clays, in Experimental Evidence and Theoretical Approaches in Unsaturated Soils (eds. A. Tarantino and C. Mancuso) Rotterdam: Balkema, pp. 91–106.
Romero, E., Gens, A. and Lloret, A. (1999) Water permeability, water retention and microstructure of unsaturated Boom clay, Engineering Geology, 54, 117–127.
Saha, R. S. and Tripathi, R. P. (1979) Effect of temperature on the soil water content suction relationship, J. Indian Soc. Soil Sci., 27, 222–224.
She, H. Y. and Sleep, B. E. (1998) The effect of temperature on capillary pressure-saturation relationships for air-water and perchloroethylene-water systems, Water Resour. Res., 34 (10), 2587–2597.
Towhata, I., Kuntiwattanakul, P., Seko, I. and Ohishi, K. (1993) Volume change of clays induced by heating as observed in consolidation tests, Soils and Foundations, 33 (4), 170–183.
van Genuchten, M.Th. (1980) A closed-form equation for predicting the hydraulic conductivity of unsaturated soils, Soil Sci. Soc. Am. J., 44, 892–898.
Vicol, T. (1990) Comportement hydraulique et mécanique d’un sol fin non saturé. Application it la modélisation. PhD Thesis, Ecole Nationale des Ponts et Chaussées, Paris.
Volckaert, G., Bernier, F., Alonso, E. E., Gens, A., Samper, J., Villar, M. V., Martin-Martin, P. L., Cuevas, J., Campos, R., Thomas, H., Imbert, C. and Zingarelli, V. (1996) Thermal-hydraulic-mechanical and geochemical behaviour of the clay barrier in radioactive waste repositories (model development and validation). Publications of the European Communities, EUR 16744 EN, Luxembourg.
Wan, A. W. L. (1996) The use of thermocouple psychrometers to measure in situ suctions and water contents in compacted clays. PhD Thesis, University of Manitoba.
Zhang, F., Zhang, Z. Z., Low, P. F. and Roth, C. B. (1993) The effect of temperature on the swelling of montmorillonite, Clay Minerals, 28, 25–31.
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Romero, E., Gens, A., Lloret, A. (2001). Temperature effects on the hydraulic behaviour of an unsaturated clay. In: Toll, D.G. (eds) Unsaturated Soil Concepts and Their Application in Geotechnical Practice. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-9775-3_5
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DOI: https://doi.org/10.1007/978-94-015-9775-3_5
Publisher Name: Springer, Dordrecht
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