Abstract
This paper deals with the relationship among geological age, physical properties and compressibility characteristics due to slaking of compacted mudstones. The samples of mudstone have been of picked up in a restricted area of “Green-tuff region”. Through some experiments and conventional tests, it can be found out that the geological age of mudstone is strongly correlated to its physical properties of slaking and grain breakage. Moreover, it is revealed that the geological age and the physical properties are associated with the compressibility characteristics which can be seen in process of alternative repetition of wet and dry states or submergence of compacted mudstone. These relationships could be explained by the post-depositional physical change of rocks.
