Description
Linear cracks not associated with corner breaks or blowups that extend across the entire slab. Typically, these cracks divide an individual slab into two to four pieces. Often referred to as “panel cracking”.
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Problem
Roughness, allows moisture infiltration leading to erosion of base/subbase support, cracks will eventually spall and disintegrate if not sealed
Possible Causes
Usually a combination of traffic loading, thermal gradient curling, moisture stresses and loss of support.
Repair
Slabs with a single, narrow linear crack may be repaired by crack sealing. More than one linear crack generally warrants a full-depth patch.