Investigation of water to ice phase change in porous media by ultrasonic and dielectric measurements - BRGM - Bureau de recherches géologiques et minières Access content directly
Journal Articles Journal of Cold Regions Engineering Year : 2009

Investigation of water to ice phase change in porous media by ultrasonic and dielectric measurements

Abstract

The main objective of this paper is to study the evolution of the ice content of porous media submitted to sub-zero temperatures by dielectric and ultrasonic measurements. Dielectric measurements are made by a capacitive sensor-based apparatus. The amount of ice formed within the tested sample is estimated from the global dielectric constants of the sample and of all the phases that form the tested composite material. On the other hand, ultrasonic measurements are based on the evolution of the ultrasonic wave velocity through the tested sample during a freezing-thawing cycle. These two methods lead to very close results and appear to be cheaper alternatives to low temperature calorimetry. The ice content curves are analyzed with the help of thermoporometry concepts in order to characterize the pore size distribution. Results appear to be complementary to mercury intrusion porosimetry ones. Moreover the commonly observed hysteresis of the ice content during a freezing-thawing cycle is investigated with respect to material microstructure.
Fichier principal
Vignette du fichier
JCRE2009.pdf (1.23 Mo) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-00596028 , version 1 (26-05-2011)

Identifiers

Cite

Antonin Fabbri, Teddy Fen-Chong, Aza Azouni, Jean-François Thimus. Investigation of water to ice phase change in porous media by ultrasonic and dielectric measurements. Journal of Cold Regions Engineering, 2009, 23 (2), pp.69-90. ⟨10.1061/(ASCE)0887-381X(2009)23:2(69)⟩. ⟨hal-00596028⟩
148 View
977 Download

Altmetric

Share

Gmail Facebook X LinkedIn More