流動過程におけるカオリナイトフロックの有効体積
2002 年 41 巻 3 号 p. 123-127
詳細
2002 年 41 巻 3 号 p. 123-127
Properties of a clay floc such as volume, structure, density, and strength are important factors to analyze the flow behavior of a flocculated clay suspension, since the dispersed clay floc (enclosed water) can be considered to behave as a flow unit during flow. In this study, the effective volume fraction of kaolinite floc during flow was examined by comparing a viscosity equation involving the effective volume fraction of floc as a parameter and the measured values of viscosity of flocculated kaolinite suspension. The viscosity of this suspension was measured using a vibro viscometer as functions of solid volume fraction and NaCl concentration. It was found that the effective volume fraction of kaolinite floc was about ten times that of kaolinite particles and this fraction increased with increasing of NaCl concentration.
