Type de roche |
Conductivité thermique |
Capacité thermique volumétrique |
||
---|---|---|---|---|
min |
valeur typique |
max |
||
Roches magmatiques |
||||
Basalte |
1.3 |
1.7 |
2.3 |
2.3 – 2.6 |
Diorite |
2.0 |
2.6 |
2.9 |
2.9 |
Gabbro |
1.7 |
1.9 |
2.5 |
2.6 |
Granit |
2.1 |
3.4 |
4.1 |
2.1 – 3.0 |
Péridotite |
3.8 |
4.0 |
5.3 |
2.7 |
Rhyolithe |
3.1 |
3.3 |
3.4 |
2.1 |
Roches métamorphiques |
||||
Gneiss |
1.9 |
2.9 |
4.0 |
1.8 – 2.4 |
Marbre |
1.3 |
2.1 |
3.1 |
2.0 |
Métaquartzite |
env. 5.8 |
2.1 |
||
Mécaschistes |
1.5 |
2.0 |
3.1 |
2.2 |
Schistes argileux |
1.5 |
2.1 |
2.1 |
2.2 – 2.5 |
Roches sédimentaires |
||||
Calcaire |
2.5 |
2.8 |
4.0 |
2.1 – 2.4 |
Marne |
1.5 |
2.1 |
3.5 |
2.2 – 2.3 |
Quartzite |
3.6 |
6.0 |
6.6 |
2.1 – 2.2 |
Sel |
5.3 |
5.4 |
6.4 |
1.2 |
Grès |
1.3 |
2.3 |
5.1 |
1.6 – 2.8 |
Roches argileuses limoneuses |
1.1 |
2.2 |
3.5 |
2.1 – 2.4 |
Roches non consolidées |
||||
Gravier sec |
0.4 |
0.4 |
0.5 |
1.4 – 1.6 |
Gravier saturé d’eau |
env. 1.8 |
env. 2.4 |
||
Moraine |
1.0 |
2.0 |
2.5 |
1.5 – 2.5 |
Sable sec |
0.3 |
0.4 |
0.8 |
1.3 – 1.6 |
Sable saturé d’eau |
1.7 |
2.4 |
5.0 |
2.2 – 2.9 |
Argile/limon sec |
0.4 |
0.5 |
1.0 |
1.5 – 1.6 |
Argile/limon saturé d’eau |
0.9 |
1.7 |
2.3 |
1.6 – 3.4 |
Tourbe |
0.2 |
0.4 |
0.7 |
0.5 – 3.8 |
Autres substances |
||||
Bentonite |
0.5 |
0.6 |
0.8 |
env. 3.9 |
Béton |
0.9 |
1.6 |
2.0 |
env. 1.8 |
Glace (-10°C) |
2.32 |
1.87 |
||
Plastique (PE) |
0.39 |
– |
||
Air (0-20°C, sec) |
0.02 |
0.0012 |
||
Acier |
60 |
3.12 |
||
Eau (+10°C) |
0.58 |
4.19 |
Caractéristiques thermiques des sols
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