ABSTRACT
Lime stabilisation is a long established method of ground improvement on which considerable previous research has been carried out. Although much is known about what happens when lime is intimately mixed with clay, little is known about what happens when lime migrates, or more properly the ions released into solution when lime is dissolved in groundwater migrate, through a clay mass from a lime source such as a lime pile.
This paper describes current research at the University of Birmingham which aims to generate a clearer understanding of the migration processes by assessing both the physical and chemical changes that occur in clay due to ion migration. In addition this paper reports the results from the first full programme of laboratory tests which assess the relative importance of curing time on the migration process.
