Pumice (vesicular volcanic) vs Shale (Medium Strength)
Property comparison of Pumice (vesicular volcanic) and Shale (Medium Strength), both stone.
| Property | Pumice (vesicular volcanic) | Shale (Medium Strength) | Difference |
|---|---|---|---|
| Tensile strength | 1 MPa | 4 MPa | +300% |
| Poisson ratio | 0.2 | 0.35 | +75% |
| Density | 700 kg/m³ | 2,400 kg/m³ | +243% |
| Thermal conductivity | 0.12 W/m·K | 1.4 W/m·K | +1067% |
| Specific heat | 840 J/kg·K | 840 J/kg·K | 0% |
| Coefficient of thermal expansion | 0.000008 1/K | 0.00001 1/K | +25% |
Difference is Shale (Medium Strength) relative to Pumice (vesicular volcanic). Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- standard
- ASTM D7012
- standard
- ASTM D7012
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