Table 2 Weathering degree classification of building sandstone according to microscopic observation
From: Weathering assessment approach for building sandstone using hyperspectral imaging technique
Weathering degree | Corresponding weathering stage |
Unweathered (UW) | Fresh building sandstone |
Slightly weathered (SW) | Building sandstone in the initial weathering stage |
Moderately weathered (MW) | Building sandstone in the accelerated weathering stage |
Highly weathered (HW) | Building sandstone in the stable weathering stage |