Abstract
A series of unconfined compression tests and triaxial compression tests was conducted for the mixture of dredged soil and steel slag with various sand contents. Furthermore, internal structure and microfabric of the specimens were observed by X-ray CT, scanning electron microscope (SEM) and mercury intrusion porosimetry (MIP). The compressive strength increased with increase in sand content, and the failure process observed by X-ray CT varied according to sand content; however, a clear difference was not seen in the microfabric of the dredged soil - steel slag mixture by SEM and MIP even if the sand content changes.
