Dewatering may be defined as the displacement of fluid from
a saturated porous medium. The mechanism of the process is not fully understood, but is known to be strongly dependent on the pore
structure of the porous medium because of the action of capillary
forces in the pores. This investigation attempts to describe the
microscopic effects of moisture in porous media and to relate these
to the macroscopic process of dewatering. This is divided into
three parts: the first is concerned with the static effects of
moisture retained in porous media, for which a model of pore space
is developed; the second deals with the now of fluids in partially
saturated porous media and an attempt is made to relate the model of
pore space to this; finally a simple theory of dewatering is
developed to demonstrate the effects of the various variables.
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.