This video show a magor heaving in the basement and how to fix it. I a ten minute video showing the sart of the long job of doing this job right.
You know you have big problems if your basemnt floor is heaving out and craking. These guys have seen these issues many time and know just how to fix it.
What causes basement floors and/or interior footings to “heave”? Typically heaving occurs when moisture is added to or returns to the soil, causing it to expand, which in turn pushes up the floor slabs and interior footings. Heave usually occurs with newer homes. When a house is built, a hole is dug and the hole remains exposed to sunlight, usually for several weeks. With so much direct sun exposure, moisture is removed from the soil and the soil shrinks. When the basement floor slab is poured, overtime, the moisture that once was in the soil returns, causing it to expand, pushing upwards on the basement floor slab and footings. In other instances, Thrasher has witnessed heave when a home is built over an old agricultural field where the old crop wasn’t fully excavated and removed. In this instance, the old crop is actually drawing moisture to the surface causing the soil to expand.
