Earth Soil Weight

Reference data and engineering information about earth soil weight for material properties applications.

earthsoilweight

Overview

Engineering reference data for Earth Soil Weight in material science and properties.

Key Formulas

Stress

$\sigma = \frac{F}{A}$

Force per unit area.

Strain

$\varepsilon = \frac{\Delta L}{L_0}$

Change in length per original length.

Hooke's Law

$\sigma = E \varepsilon$

Stress proportional to strain in elastic region.

Thermal Expansion

$\Delta L = \alpha L_0 \Delta T$

Length change due to temperature.

Variables

Symbol	Description	Unit
$\sigma$	Stress	Pa
$\varepsilon$	Strain	—
$E$	Young's modulus	Pa
$\alpha$	Thermal expansion coefficient	1/°C
$\Delta T$	Temperature change	°C

Approximate weights of different soil types
Type of Soil	Weight(lb/ft³)	Weight(kg/m³)
Loose earth	75	1200
Rammed earth	100	1600

Typical chemical composition of soil
Element	Content (%)
Aluminum	6 - 10
Calcium	1 - 7
Iron	2 - 10
Magnesium	0.1 - 3
Oxygen	44 - 49
Potassium	1.5 - 3
Silicon	22 - 36
Sodium	2.4 - 2.5

Soil classification by particle size
Soil	Sieve Size(mm)
Silt	0.002 - 0.06
Sand	0.06 - 2.0
Gravel	2.0 - 60
Cobbles	60 - 200
Boulders	200 -

Soil Volume Formulas

The void ratio $e$ is the ratio of the volume of voids to the volume of solids: $e = \frac{V_v}{V_s} = \frac{n}{1 - n}$

Porosity $n$ is the ratio of the volume of voids to the total volume: $n = \frac{V_v}{V} = \frac{e}{1 + e}$

The degree of saturation $S$ is the ratio of the volume of water to the total volume: $S = \frac{V_w}{V}$ where $V_v = V_a + V_w$ is the volume of voids, $V_s$ is the volume of solids, $V$ is the total volume, and $V_w$ is the volume of water.

Earth Soil Weight

Overview

Key Formulas

Stress

Strain

Hooke's Law

Thermal Expansion

Variables

Soil Weight Data

Soil Composition

Soil Classification

Soil Volume Formulas

Interactive Charts

Dirt and Mud - Densities

References