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Published in:
2009 | OriginalPaper | Chapter
Water Flow Theory for Saturated and Unsaturated Pavement Material
Authors : Sigurður Erlingsson, Mihael Brenčič, Andrew Dawson
Published in: Water in Road Structures
Publisher: Springer Netherlands
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This chapter describes the relation between road structures and water giving the general water balance equation for the pavement structure. Aquifers are briefly introduced. The pavement and its associated embankment are divided into the saturated zone and the unsaturated zone. Porous media are also described briefly together with their grain size distributions and fundamental properties related to water movements. A short summary of water flow theory for saturated and unsaturated soils is then presented, including relevant discussion of the soil water characteristic curve and permeability of unsaturated soils.