The value of plasticity index (IP) and liquidity index (IL) of North Polish ablation boulder clays and varved clays depending of the method of its determination

Abstract

Article determins a correlation between the values of the plasticity and liquidity index (IP, IL) of cohesive soils achieved by various laboratory methods (on the basis of Casagrande apparatus and cone penetrometer method) and consists research results on natural clayey soils of known origin and strictly defined genetic features, described in detail in terms of particle size and mineralogy (the North Polish ablation boulder clays and varved clays).

Keywords

• plasticity index
• liquidity index
• varved clays
• postglacial ablation tills
• cone penetrometer
• Casagrande apparatus