Abstract
The establishment of a disposal site costs a great deal of money. Therefore, it is necessary to dispose of more dredged soil in existing and new disposal sites. The objective of this research is to increase the amount of disposed soil available for disposal by lowering the water content ratio at the time of input by "pretreatment before input". In order to evaluate the effect of drying on the volume reduction, a drying shrinkage test was carried out. Drying characteristics of dredged soil was confirmed by the change of typical soil constants. And, the drying speed remarkably improved by heating. As a conclusion, this study showed that the volume of dredged soil decreases linearly in a wide range of water content.
