Eur. Phys. J. Appl. Phys.
Volume 60, Number 2, November 2012
Topical issue: New trends in porous media. Edited by D. Salin
|Number of page(s)||9|
|Section||Physics and mechanics of fluids, microfluidics|
|Published online||23 October 2012|
Topology of evolving pore networks
Université Pierre et Marie Curie, CNRS, Laboratory PECSA, 75252 Paris, France
2 Physique de la Matière Condensée, École polytechnique, CNRS, 91128 Palaiseau, France
3 Swiss Light Source, Paul Sherrer Institute, CH-5232 Villigen, Switzerland
4 Laboratory of Construction Materials, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
a e-mail: email@example.com
Revised: 27 July 2012
Accepted: 1 August 2012
Published online: 23 October 2012
Morphological and topological quantification of complex pore networks is of great relevance for environmental engineering, earth science and industry. Recent developments of 3D imaging techniques such as X-ray microtomography or X-ray microscopy provide an opportunity to perform a comprehensive analysis of the pore network topology. Such an analysis is crucial to understand how transport or mechanical properties evolve during the growth and/or the aging of a pore network, especially near a percolation threshold. In the first part of this work, we present some properties related to the graph of retraction of a 3D pore network, a powerful way to characterize the topological evolution. In the second part, we analyze the topology of an evolving 3D pore network in the vicinity of a percolation transition. Two distinct scenarii of evolution are presented. The last part is dedicated to an experimental example of evolving pore network: the setting of an ordinary cement paste probed in its early age by synchrotron X-ray microcomputerized tomography.
© EDP Sciences, 2012
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