On asphalt pavements, these cracks are parallel or perpendicular to the pavement centerline or laydown direction. They may be caused by poorly constructed paving joints, asphalt shrinkage, or reflective cracking caused by cracking in the underlying surface. They are not usually load-associated. Also referred to as Longitudinal Cracking, Transverse Cracking, Thermal Cracking.
Longitudinal and Transverse Cracking (not reflective)
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