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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.
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.
14 Ιουν 2023 · 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.
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.
11 Δεκ 2015 · Soil properties. Design parameters. Soil mechanics. Permeability. Consolidation. Shear strength. This chapter gives a brief overview of the geotechnical properties commonly determined in the laboratory, their relevance in soil mechanics and laboratory tests for determining them.
Soil mechanics may be defined as the study of the engineering behaviors of soils that are related to the design of civil engineering structures made from or in the earth.
In soil mechanics, the specific gravity of soil solids (which is often referred to as the specific gravity of soil) is an important parameter for calculation of the weight-volume relationship. Thus specific gravity, Gs, is defined as. Gs = unit weight (or density) of soil solids only / unit weight (or density) or water.
