To fix a concrete wall that is spalling, you first need to cut into the concrete around the spalled area. Make the cut about three-eighths of an inch deep with a circular saw. Next, use a hammer and chisel to remove the concrete from the cut area. This step should expose the reinforced steel bars.
How to Repair Spalling Concrete Wall?
Repairing spalling concrete walls can be a daunting task, but it is a necessary step to maintain the integrity of your walls and to prevent further damage.
Spalling is the process of concrete breaking off in chunks, flakes, or layers due to exposure to moisture and freezing temperatures.
Fortunately, with some preparation and the right tools, you can repair spalling concrete walls yourself. Here’s how to do it:
1. Start by preparing the area. You’ll need to clear away any debris and clean the area. Use a pressure washer to remove any dirt, debris, and other materials that may be stuck to the wall.
2. Once the area is clean, you’ll need to inspect the damage. Look for any cracks or holes in the concrete. If you find any, you’ll need to repair them using a concrete patching compound.
3. After the area is patched, you’ll need to apply a concrete sealer. This will help to protect the area from future damage.
4. Now, you’ll need to apply a waterproofing material to the affected area. Make sure to cover the entire area and overlap the edges.