What's It Mean When a Road Buckles?

Pavement buckles can occur when the air temperature changes from moderate to extreme heat. When a road is constructed it is cut into segments creating a space for expansion and contraction. ... The sun heats the pavement, and the pavement expands and then buckles. Buckles more commonly occur on older concrete pavements.

What does it mean when a road buckles?

The reason is simple physics: Heat causes materials to expand. When concrete slabs expand beyond the space in the joints they press against each other, causing the surface to buckle at the joint or in a weak spot within the slab. Rhinesmith said pavement buckling is unpredictable.

What causes concrete roads to buckle?

Causes Of Road Buckling

A marked increase in air temperature or cement hydration causes road buckling. It's more common in older concrete pavement. As heat increases, the concrete expands, fills the joint spacing, if applicable, and forces the slabs upward.