EFFECT OF LIME ON CATION-EXCHANGE CAPACITY OF MARINE CLAY

Lime has been successfully used as an additive to the soil to improve soil behavior. Cation exchange is considered to be one of the importan t reactions responsible for the improvement in the soil characteristic s. This technical note presents the results obtained from model lime c olumns installed in a marine clay bed formed in the laboratory test ta nk. The diffusion of lime into the surrounding soil from the columns w as confirmed through the increase in the values of pH and lime content (CaO) measured from a number of samples taken in between the columns. Further, there is an increase in the cation exchange capacity.