The purpose of this paper is to describe the development
and the use of two measurement techniques especially adapted to the rapid
determination of the thermophysical properties of evolutive porous media.
The first technique exploits the method of the “heated and non-heated
wires” and is validated on wet clay by comparison with previous works [Mounanga et al., Eur. Phys. J.
Appl. Phys. 26, 65 (2004)].
It is then used to quantify the evolution of both thermal conductivity and
volumetric heat capacity of hardening cement pastes maintained at 294 ±
1 K. The second technique is based on the classical method of the “heating
film” and a data treatment using forward calculation. This technique is
first used to measure the properties of well-known materials (hardened
mortars, wet sand [Mounanga et al., Eur. Phys. J.
Appl. Phys. 26, 65 (2004); Delacre, Ph.D. thesis, University of Artois, 2000] and glass [Bastian, Rev. Phys. Appl. 22, 431 (1987)] and then applied to media whose
properties evolve both over time and through space (drying sand).