Fine-grained soils, mainly silts and clays, are classified according to their Atterberg limits.
2.
In relation to his work on Atterberg limits, the " A-line " on plasticity charts may well be named after him.
3.
Silts and clays are distinguished by the soils'Atterberg limits, and separates " high-plasticity " from " low-plasticity " soils as well.
4.
Moderately organic soils are considered subdivisions of silts and clays, and are distinguished from inorganic soils by changes in their plasticity properties ( and Atterberg limits ) on drying.
5.
Atterberg limits tests, water content measurements, and grain size analysis, for example, may be performed on disturbed samples obtained from thick walled triaxial shear and unconfined compression test.
6.
A disturbed sample is one in which the structure of the soil has been changed sufficiently that tests of structural properties of the soil will not be representative of in-situ conditions, and only properties of the soil grains ( e . g ., grain size distribution, Atterberg limits, and possibly the water content ) can be accurately determined.
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