Abstract
In this study, we performed one dimensional cylindrical sedimentation tests to investigate the impact of clay mineralogy, ionic concentration, ionic valence on sedimentation, and self-consolidation behavior of clay. The result at 1,000% and 2,000% water content indicates that the water content = 2,000% showed higher self-consolidation coefficient and initial settling velocity, and faster initiation and termination of self-consolidation. Additionally, settling velocity decreased as ionic concentration (0.01 - 2 M) increased, and kaolinite showed higher settling velocity than illite. The observed sedimentation and self-consolidation experimental results implies the need for considering clay mineralogy, water content, ionic concentration, and ionic valence in the geotechnical behavior of high-water content clay sediment.
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