Modified shear cell for characterization of the rheological behavior of particulate networks under c

• 作 者: Simon Hammerich Anthony D.Stickland Benjamin Radel Marco Gleiss Hermann Nirschl
• 机 构: Institute of Mechanical Process Engineering and Mechanics, Karlsruhe Institute for Technology(KIT),
• 出 处: 颗粒学报（英文版）
• 发表日期: 2020年4期
• 关键词: Sediment rheology Saturated particulate network Shear cell Shear compression Rhe

Knowledge of the rheological behavior of saturated particulate networks is crucial for every process in which a particulate network is built-up,dewatered,or transported,as in a decanter centrifuge.However,difficulties arise as to how to characterize the material properties.Thus far,no standardized method or measurement device has prevailed.In this work,the requirements for a useful device are discussed,followed by the design of a modified shear cell for a Schulze ring shear tester RST-01.pc and its measurement procedure.Shear experiments under normal load with different sediments consisting of inorganic and organic particles whose material properties strongly affect the rheological behavior were performed.The results demonstrate the potential of the modified shear cell.Furthermore,current challenges in characterization are discussed.The characterization possibilities of the developed shear cell are a further step toward understanding the theological behavior of liquid-saturated particulate networks.