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Progress in Physical Rock Matrix Characterization: Structure of the Pore Space

Published online by Cambridge University Press:  10 February 2011

M. Sütari-Kauppi
Affiliation:
Laboratory of Radiochemistry, University of Helsinki, PO Box 55, FIN-00014, University of Helsinki, Finland
E.S. Flitsiyan
Affiliation:
Institute of Nuclear Physics, Uzbekian Academy of Science, Ulugbek, Tashkent 702132, Uzbekistan
P. Klobes
Affiliation:
Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 87, D- 12200 Berlin, Germany
K. Meyer
Affiliation:
Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 87, D- 12200 Berlin, Germany
K-H. Hellmuth
Affiliation:
Finnish Centre for Radiation and Nuclear Safety, PO Box 14, FIN-00881 Helsinki, Finland, [email protected]
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Abstract

Quantitative autoradiography for the investigation of rock matrices has been further developed by use of tritium-labeled polymethylmethacrylate (3H-PMMA), the use of thin sections and image analysis functions allowing correlations of mineralogic-petrographical and analytical or porosity information. The autoradiographic system was studied experimentally and theoretically. The autoradiography could achieve a resolution down to 10 and 20 μm for 3H and 14C, respectively. Possible candidates for intact, low-porous rock standard materials were studied and the measurement of their transport properties discussed. Porosities and diffusivities measured in rock types dominated by very small pores were depending on the probe molecule used. The effect was most pronounced in flint which gave low porosities for MMA, Hg and He and no diffusivities at all for He.

Type
Research Article
Copyright
Copyright © Materials Research Society 1998

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References

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