what is heaving in concrete
1 Answer from this member: Heaving is usually the result of frost, tree roots or expansive soils getting wet. Heaving floors will often be accompanied by cracks, thought slabs may heave with or without cracking.When heaving occurs, it can form a trip hazard and may weaken the structure of your home.Walls may be out of plumb as a result of the heaved slabs. Answer from this member: Heaving is usually the result of frost, tree roots or expansive soils getting wet. Heaving floors will often be accompanied by cracks, thought slabs may heave with or without cracking.