If you find sections of concrete pushed upwards, this is when you have a major issue. Soil that is rich with clay will expand as it absorbs water. Your concrete basement floor eventually cracks and lifts due to the pressure of the expanding soil underneath. Action should be taken immediately if you notice concrete in your basement lifting.
Fix the crack in your concrete garage or basement floor yourself by following these step-by-step directions. Using a diamond blade on your circular saw, cut a 1/2-in.-deep groove along each side of the crack. Wear an N-95 respirator and turn on a fan to blow the concrete dust out of the garage. Chip
Often we see simple settlement cracks. As durable as concrete is once cured, it's hard to find a basement that doesn't have at least one crack in it. Why Concrete Cracks 1. Excess water in the mix Concrete does not require much water to achieve maximum strength, however, a much of concrete used in residential pours tends to have too much water added to the concrete on the job site. This water is added to make the concrete easier to install.
Basement floors, typically made of concrete, crack from the changes in moisture and temperature and just the settling of your foundation. You can patch the floor by adding more concrete mixture
Most cracks in basement floors can be repaired by yourself with a do it yourself epoxy concrete crack repair kit. Basement floors crack for a many reasons: 1. Newly poured concrete shrinks when it dries. If no expansion joints are cut into the concrete floor then shrinkage cracks will likely appear. These are quite common.
Basement and garage floor random heave and crack patterns: Cracked and heaved concrete or settled concrete can occur in more random patterns in any concrete floor where there has been frost heaving, soil contraction/expansion, or simple soil settlement, as shown in this photograph.