Thermal Conductivity of Different Types of Soils
The thermal conductivity of soils depends on various factors, including the soil's composition, moisture content, density, and temperature. The following table provides a curated list of thermal conductivity values for common soil types at room temperature (approximately 20°C or 68°F).
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| Quartz sand (dry) | 0.3347 |
| Quartz sand (wet) (4-23 wt% water) | 1.6736 |
| Sand, Northway (4-10 wt% water) | 0.8368 |
| Sand, quartz (wet) (4-23 wt% water) | 1.6736 |
| Soil (average) | 0.8368 |
| Soil, clayey (wet) | 1.5062 |
| Soil, fine quartz flour (dry) | 0.1674 |
| Soil, fine quartz flour (21 wt% water) | 2.2175 |
| Soil, loam (dry) | 0.2511 |
| Soil, loam (4-27 wt% water) | 0.4184 |
| Soil, sandy (8 wt% water) | 0.5858 |
| Soil, sandy dry | 0.2636 |
Related Tables
References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018.