Atterberg limits


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Atterberg limits

In plastic soils, the water contents (determined by standard tests) which define the boundaries between the different states of consistency of plastic soils. Also see liquid limit, plastic limit, shrinkage limit.
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Measurements of the Atterberg limits and compression indices were performed.
The soil consistency was determined using the Atterberg limits test apparatus following the standard procedure (ASTM D4318).
Sieve analysis, Hydrometer analysis, Moisture content, Specific gravity, Atterberg Limits for soil classification.
Additionally, it was not possible to attain the Atterberg limits (liquid limit and plastic limits).
The variations of Atterberg limits in all boreholes show that the variation of plastic limit values shows less variation than liquid limit, therefore plasticity index is affected mostly by liquid limit.
The database table used for the analysis examination was constructed from: Borehole ID, Project Name, Coordinates, SPT N-values, Soil class, Atterberg Limits, Safe bearing capacity and Shear strength characteristics.
Other parameters, like the Atterberg limits or the decomposition time after Weissmann (Weissmann, Richwien 2003) cannot be determined in reproducible quality, so that different criteria may need to be developed.