What Is Specific Gravity of Soil. The Specific Gravity of Soil is defined as the ratio of the weight of a given volume of the material to the weight of an equal volume of distilled water. It is an important parameter in soil mechanics for the calculation of the weight-volume relationship.

The specific gravity (G S) of a soil refers to the ratio of the solid particles’ unit weight to the unit weight of water. G S should not be confused with the soil density since it is a dimensionless unit and expresses the ratio of two particular densities.

2023年6月14日 · The specific gravity of soil is the weight of a given volume of the soil divided by the weight of the same volume of water at 20°C. In effect, it shows how much heavier (or lighter) the soil is in comparison to water.

The specific gravity (G s)of a material is the ratio of the mass of a unit volume of soil solids at a specific temperature to the mass of an equal volume of gas-free distilled water at the same temperature. The specific gravity of soil is usually reported at 20°C.

Specific gravity is a fundamental property of soils and other construction materials. This dimensionless unit is the ratio of material density to the density of water and is used to calculate soil density, void ratio, saturation, and other soil properties.

The specific gravity of soils composed of particles smaller than the 4.75-mm (No. 4) sieve is determined by means of a pycnometer as per AASHTO T 100-15 test method. For soils with particles larger than the 4.75-mm (No. 4) sieve, the method outlined in AASHTO T 85 is followed.

For most of the soils the value of specific gravity lies between 2.65 to 2.80. In a unit volume coarse grained soils, as they have large particle size, have less mass and more voids, while in the same volume fine grained soils have more mass and less voids.

2019年2月20日 · The "specific gravity" of soils and soil solids refers to the mass of solids in the soil compared to the mass of water at the same volume. The name "specific" is a bit misleading since soil solids are made of so many different particles, …

2022年5月12日 · The specific gravity of soil may be defined as the ratio of the mass of solids to the mass of an equivalent volume of water at 4ºC. The value of specific gravity (soil) varies between 2.65-2.80. Mathematically, G = Ms / Mw = ρs / ρw = γs / γw. Where, ρs = Density of Solid. ρw = Density of Water. γs = Unit Weight of Solid. γw = Unit Weight of Water.

2024年6月11日 · Specifically, knowing the specific gravity aids in determining various soil properties such as void ratio, degree of saturation, and soil density. These properties are vital for foundation design, stability of soil embankments, and settlement estimations for …