Determining the lower plastic limit of soil by pressing

F. V. Kotlov, The influence of procedural differences in physico-mechanical analyses of soils on the results of laboratory determinations. Papers on the Laboratory Study of Soils [in Russian], Gosgeolizdat (1952). A. M. Vasil'ev, Fundamentals of Contemporary Laboratory Procedure for Determining the Physical Properties of Soils [in Russian], Gosstroiizdat (1953). Yu. M. Vasil'ev, A method of determining the plastic limit [in Russian], Transportnoe Stroitel'stvo (1959), No. 10. M. N. Gol'dshtein, Mechanical Properties of Soils [in Russian], Gosstroiizdat (1952). V. F. Razorenov, Determination of the consistency, moisture content and plastic limits of clay soils from penetration results [in Russian], Osnovaniya, fundamenty i mekhanika gruntov (1962), No. 2. V. M. Veselovskii, Determining the structural characteristics of a plastic clay soil from its physical properties [in Russian], Stroitel'no Gruntovedenie, Symp. 42 (1960). M. I. Volkov and S. I. Surozh, Determination of the Plasticity of Soils [in Russian], Pochvovedenie (1935), No. 2. S. I. Dolgov, The Mobility of Soil Moisture and Its Availability to Plants [in Russian], Izd. AN SSSR (1948).