Tensile Strength of Rock
Tensile strength Te is 20 to 30x smaller than the strength of the rock in simple compression σc.
Strength in simple tension To for selected intact rocks [MPa]
Basalt | 3 - 18 |
Gneiss | 7 - 16 |
Granite | 11 - 21 |
Limestone | 3 - 5 |
Marble | 7 - 12 |
Quartzite | 4 - 23 |
Sandstone | 5 - 11 |
Schist | 5 - 12 |
Slate | 2 - 17 |
Tuff | 2 - 4 |