Abstract
This paper describes the effective utilization of mudstones as a banking material. Mudstones are produced in abundance from construction work. Compaction tests, unconfined compression tests and triaxial compression tests were performed on mudstone to investigate the effects of inundation and slaking after compaction on mechanical properties of compacted mudstone. It is found that the failure envelope after inundation of compacted mudstones may be divided into normally consolidated and over-consolidated states using the compaction yield stress. In addition, the compaction yield stress can be readily evaluated from the dry density of mudstones.
