The evolution of effective stress in sedimenting clayey slurries

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Activities such as water treatment, mining and dredging produce enormous volumes of semi-solid waste annually. The safe and environmentally responsible management of these wastes is costly, consumes vast quantities of water, and sterilises large areas of land. We will address these issues through understanding and manipulating the interaction between individual particles in these slurries to produce desired engineering outcomes. This will be done by developing a laboratory testing column in which the gain in strength and rigidity of a settling slurry are fully characterised, enabling an improvement in design of safe and economical impoundment structures for these waste materials.