Hydraulic Properties of Swelling Clay-Gel Soils: Electrolyte and Temperature Effects

我们试图了解电解质和温度对膨胀粘土凝胶土壤的平衡和水流特性的影响。这些土壤在作物、环境和工业过程中都很重要。它们的水力特性控制着脱水速率、流变性和溶质运动。双层理论(DLVO)成功地描述了实验室中模型、平行板粘土体系的平衡行为。然而，不太理想的粘土泥浆的平衡和水分传输特性在理论上描述得很差。因此，野外粘土凝胶是有问题的。结果将是更好地了解膨胀粘土，改进和更具成本效益的冻土管理技术，以及受过培训的毕业生。

We seek to understand the impacts of electrolytes and temperature on the equilibrium and water flow properties of swelling, clay-gel soils. These soils are important in cropping, the environment and industrial processes. Their hydraulic properties govern dewatering rates, rheology, and solute movement. Double layer theory (DLVO) successfully describes the equilibrium behaviour of model, parallel-plate clay systems in laboratories. However, equilibrium and water transport properties of less-ideal, clay slurries are poorly described by theory. Field clay-gels are therefore problematic. Outcomes will be better understanding of swelling clays, improved and more cost effective management techniques for gel soils and trained graduates.