Abstract
The thermal conductivities of compacted bentonite and a bentonite–sand mixture were measured to investigate the effects of dry density, water content and sand fraction on the thermal conductivity. A single expression has been proposed to describe the thermal conductivity of the compacted bentonite and the bentonite–sand mixture once their primary parameters such as dry density, water content and sand fraction are known.
Similar content being viewed by others
References
Côté J, Konrad JM (2005) A generalized thermal conductivity model for soils and construction materials. Can Geotech J 42:443–458
Gangadhara R, Singh DN (1999) A generalized relationship to estimate thermal conductivity of soils. Can Geotech J 36:67–773
Abu-Hamdeh NH, Reeder RC (2000) Soil thermal conductivity: effects of density, moisture, salt concentration, and organic matter. Soil Sci Soc Am J 64:1285–1290
Tavman IH (1996) Effective thermal conductivity of granular porous materials. Int Comm Heat Mass Transf 23:169–176
Usowicz B, Lipiec J, Ferrero A (2006) Prediction of soil thermal conductivity based on penetration resistance and water content or air-filled porosity. Int J Heat Mass Transf 49:5010–5017
Knutsson S (1983) On the thermal conductivity and thermal diffusivity of highly compacted bentonite. SKB Technical Report 83-72, SKB
Börgesson L, Fredrikson A, Johannesson L (1994) Heat conductivity of buffer materials, SKB Technical Report 94-29, SKB
Ould-Lahoucine C, Sakashita H, Kumada T (2002) Measurement of thermal conductivity of buffer materials and evaluation of existing correlations predicting it. Nucl Eng Des 216:1–11
American Society for Testing and Materials (1991) Annual book of ASTM Standards, vol 04.08
Cho WJ, Lee JO, Kang CH, Chun KS (1999) Physico- chemical, mineralogical properties of domestic bentonite and bentonite–sand mixture as a buffer material in the high level waste repository, KAERI/TR 1388/99, Korea Atomic Energy Research Institute
Sass JH, Lachenbruch AH, Munroe RJ (1971) Thermal conductivity of rocks from measurements on fragments and its application to heat-flow determinations. J Geophys Res 76:3391–3401
Fujita H, Sugita Y, Noda M, Kiyohashi H (1992) Measurement of thermophysical properties of buffer material (I). PNC Report PNC TN8410 92-057, Power Reactor and Nuclear Fuel Development Corporation
Suzuki H, Tanigushi W (1999) Measurement of thermophysical properties of buffer material (II). JNC Report JNC TN8430 99-006, Japan Nuclear Cycle Development Institute
JNC (1999) H12 Project to establish technical basis for HLW disposal in Japan, Support Report 2, Japan Nuclear Cycle Development Institute
Pusch R (1999) Microstructural evolution of buffers. Eng Geol 5:33–41
Acknowledgments
This work was supported by Nuclear Research & Development Program of the National Research Foundation (NRF) grant funded by the Korean government (MEST).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Cho, WJ., Lee, JO. & Kwon, S. An empirical model for the thermal conductivity of compacted bentonite and a bentonite–sand mixture. Heat Mass Transfer 47, 1385–1393 (2011). https://doi.org/10.1007/s00231-011-0800-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00231-011-0800-1