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一、前言1911年瑞典农业学家阿太堡(Atter-berg)提出以液限、塑限和塑性指数表征土的可塑性,采用摇碟与搓条分别测定液限和塑限。经太沙基(K.Terzaghi)与卡萨格兰德(A.Casagrande)的研究与改进,广泛地被应用于土木工程。液限、塑限和塑性指数不仅表征了土的稠度状态,而且反映了土质的差异,即反映了土的颗粒成分、矿物成分以及土的胶体化学性质。由于
I. INTRODUCTION In 1911, Swedish agriculturist Ater-berg proposed to characterize soil plasticity with liquid limit, plastic limit, and plasticity index. The liquid limit and plastic limit were measured using a rocker and a purlin. Research and improvement by K. Terzaghi and A. Casagrande has been widely applied to civil engineering. The liquid limit, plastic limit, and plasticity index not only represent the consistency state of the soil, but also reflect the difference in soil quality, that is, reflect the granular composition of the soil, the mineral composition, and the colloidal chemical properties of the soil. due to