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Electromagnetic Properties of the Ground: Part 1 - Fine-Grained Soils at the Liquid Limit

This paper shows for the first time that there is a specific link between geophysical properties of clay soils and their Liquid Limit. As Liquid Limit is a useful parameter for characterising clays that is routinely determined as part of site investigations, this can provide an invaluable insight into the likely performance of certain geophysical techniques, such as ground penetrating radar. This unique paper also goes on to show the potential for using the Liquid Limit, dry density and percentage linear shrinkage of a soil to explain, and potentially predict, the frequency-dependent nature of apparent permittivity of fine grained soils.