Simplified Transient Hot-Wire Method for Effective Thermal Conductivity Measurement in Geo Materials: Microstructure and Saturation Effect

Table 3

Evolution of the 𝜆₁ and 𝜆₂ for the different dried and saturated states of the glass bead assemblages. Air saturated for 0.45 to 3.0 mean diameters, acetone, and water saturated for 3.0 mm mean diameter, Maxwell, and Ktupiczka calculations [16].

Medium	𝜆1 (W/mK)	𝜆2 (W/mK)	Maxwell 𝜆2 (W/mK)	Ktupiczka 𝜆2 (W/mK)
Air saturated	0.1–0.04	0.20–0.40	0.20	0.18
Acetone saturated	0.35	0.64	0.63	0.48
Water saturated	0.85	0.85	0.98	0.87