WHAT ARE THE VALUES OF MODULUS OF ELASTICITY & POISSON’S RATIO FOR DIFFERENT ROCKS?
Modulus of Elasticity of Rock
Modulus of elasticity of rocks depend upon several factors, such as,
- Type of rock
- Porosity
- Grain size
- Water content
Value of modulus of elasticity can be determined by static or dynamic methods. Higher value of modulus of elasticity indicates good quality rock having sound composition. Typical values of modulus of elasticity of some common are given in the table below.
Modulus of Elasticity of Some Common Rocks
| Types of Rocks | Name of Rocks | Youngs Modulus of Elasticity (E), kg/cm2*105 |
| Igneous Rocks | Basalt | 2.0 – 10.0 |
| Diabase | 3.0 – 9.0 | |
| Gabbro | 6.0 – 11.0 | |
| Granite | 2.6 – 7.0 | |
| Syemite | 6.0 – 8.0 | |
| Sedimentary Rocks | Dolomite | 2.0 – 4.4 |
| Limestone | 1.0 – 8.0 | |
| Sandstone | 0.5 – 8.6 | |
| Shale | 0.8 – 3.0 | |
| Metamorphic Rocks | Gneiss | 2.0 – 6.0 |
| Marble | 6.0 – 9.0 | |
| Quartzite | 2.6 – 10.2 | |
| Schist | 4.1 – 7.2 |
Poisson’s Ratio of Rock
Poisson’s ratio measures the ratio of lateral strain to axial strain at linearly elastic region. For most rocks, the value of Poisson’s ratio ranges in between 0.15 to 0.40. Typical values of modulus of elasticity of some common are given in the table below.
Values of Poisson’s Ratio for Some Common Rocks
| Types of Rocks | Name of Rocks | Average Values of Poisson’s Ratio (ν) |
Igneous Rocks |
Basalt | 0.14 - 0.20 |
| Diabase | 0.125 – 0.25 | |
| Gabbro | 0.125 – 0.25 | |
| Granite | 0.125 – 0.25 | |
| Syemite | 0.25 | |
| Sedimentary Rocks | Dolomite | 0.08 – 0.20 |
| Limestone | 0.10 - 0.20 | |
| Sandstone | 0.066 – 0.125 | |
| Shale | 0.11 – 0.54 | |
| Metamorphic Rocks | Gneiss | 0.091 – 0.25 |
| Marble | 0.25 – 0.38 | |
| Quartzite | 0.23 | |
| Schist | 0.01 – 0.20 |
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Suryakanta
Geotechnical-Material Engineer. You can follow me onInstagram. You can connect me onGoogle +. To know more about me just visitAboutMe
7 Comments
What is the practical implementation of poison’s ratio of rocks in foundation design
Hello sir, will you please help me to determine modulus of elasticity of rock
Could you post the reference link
首先，（kg / cm ^ 2）* 10 ^ 5不是杨氏模量的正确单元，这应该是压力单位。压力是面积上的力，所以n * m ^ -2或si单位kg * m ^ -1 * s ^ -2。也许你要为gigapascals，这将是（n / cm ^ 2）* 10 ^ 5，虽然写得更好的方式是（n / m ^ 2）* 10 ^ 9。其次，如果您要使用GPA，那么杨氏模量的所有值都是按一个数量级关闭。如果您谈论GPA，这些应该是10倍。新利18体育官网登录
-Austin
Or he’s using kgf/cm^2, in which case the values make perfect sense and look about spot on…
I usually find it pays to try and read things in as much good faith as possible ?
Plz ans me what is the value of poisson’s ratio for a liquid?
Hey Suryakanta,
Could you please provided the reference where you found the information regarding Basalt’s Poisson’s Ratio ?
Thank you
Marc