Determination of the Atterberg Limits of Eemian Gyttja on Samples with Different Composition

The paper presents the results of laboratory tests of plastic limit w_P and liquid limit w_L of Eemian gyttja characterized by different organic matter content I_om and calcium carbonate content CaCO₃. Comparison of the liquid limit w_L determined with the use of the Casagrande apparatus w_LC and a cone penetrometer with cones having apex angles of 60° w_L60 and 30° w_L30 is shown. Based on statistical analysis of the test results, single- and two-factor empirical relationships for evaluating the plastic limit w_P and liquid limit w_L of Eemian gyttja depending on the organic matter content I_om and/or calcium carbonate content CaCO₃ are presented in this study.