Localized slab portion broken into several pieces. Typically a concern only with CRCP.
Roughness, allows moisture infiltration leading to erosion of base/subbase support, cracks will spall and disintegrate.
Can indicate a localized construction defect such as inadequate consolidation. In CRCP, it can be caused by steel corrosion, inadequate amount of steel, excessively wide shrinkage cracks or excessively close shrinkage cracks.