What are the engineering characteristics of slate
The strong weathering and whole weathering material of slate have the properties of clay-rich coarse-grained soil and cohesive soil.
It is tentatively believed that it can be used as the underlying packing of subgrade
The mineral composition and its content before and after weathering are not changed, and no clay minerals such as illite and montmorillonite
The mineral properties of clay minerals such as kaolinite contained in slate are relatively good by X-ray diffraction analysis