What Causes Heave?
Frost Heave
Freezing moisture below the slab expands and pushes concrete upward.
Expansive Soils
Clay soils swell when wet and shrink when dry, moving whatever sits on them.
Tree Roots
Roots under a slab lift and crack sections over time.
Repair Considerations
Repair only makes sense once the source of movement is understood. Simply pouring more concrete over a heaving section rarely lasts.
Frequently Asked Questions
Is a heaved slab the same as a sinking slab?+
No. Sinking is downward movement from base failure; heaving is upward movement, usually from frost or expansive soils below.
Will heaving fix itself when it thaws?+
Sometimes frost heave partially resolves after the ground thaws, but recurring heave points to a soil or drainage issue that will not fix itself.
Request a Concrete Estimate
Call Springfield IL Concrete or submit the estimate form to discuss your project.