Search results
The Atterberg limits are a basic measure of the critical water contents of a fine-grained soil: its shrinkage limit, plastic limit, and liquid limit . Depending on its water content, soil may appear in one of four states: solid, semi-solid, plastic and liquid.
Swedish scientist Albert Atterberg was the first person to define the limits of soil consistency for the classification of fine-grained soils and later, they were refined by Arthur Casagrande.
The Atterberg limit refers to the liquid limit and plastic limit of soil. These two limits are used internationally for soil identification, classification, and strength correlations.
Atterberg limits tests establish the moisture contents at which fine-grained clay and silt soils transition between solid, semi-solid, plastic, and liquid states.
Atterberg limits correspond to soil moisture levels at which soil consistency changes from one stage to another. Stabilization is a means of enhancing soil strength, density, hydraulic conductivity, and compression.
The water contents at the boundary of these states are known as Atterberg limits. Between the solid and semisolid states is shrinkage limit, between semisolid and plastic states is plastic limit, and between plastic and liquid states is liquid limit.
The Atterberg limits (liquid limit, plastic limit, and shrinkage limit) provide a very useful indication of the properties of the tailings. They have been used in soil mechanics for over 50 years, providing a measure of the moisture content at which a soil (tailings) changes from a liquid, to a plastic, to a semisolid, to a solid state.
Jan 1, 2018 · Casagrande ( 1932) standardized Atterberg limits for engineering classification of fine-grained soils. The Atterberg limits used in engineering practice include liquid limit (LL), plastic limit (PL), and, less frequently, shrinkage limit (SL).
Jan 1, 2013 · Atterberg Limits are the water contents which define transitions between the solid, plastic, and liquid states of a given soil material. The tests are restricted to cohesive soils with appreciable silt or clay fraction, and cannot be conducted readily on either sands or silts with a high sand fraction.
May 20, 2021 · Among the most commonly specified tests in the geotechnical engineering industry, the liquid limit and plastic limit tests are principally used for (i) deducing useful design parameter values from existing correlations with these consistency limits and (ii) for classifying fine-grained soils, typically employing the Casagrande-style plasticity c...
