Spalling Concrete Repair
- Thoroughly Clean the concrete floor with a blower to remove all loose dust and any other material that may be present.
- Use a pressure washer to dislodge loose particles that are about to lift up from the floor as well as remove other stains that could prevent the new concrete from binding
- If there are oil stains, these need to be removed by removing the concrete or by using an acid to provide clean unsoiled concrete.
- Use a blower again to clear off all loose particles that might remain
- Mix one part Portland cement and two parts sand to a thick consistency like thick applesauce. Course sand can be used to provide a rougher surface if needed.
- Apply cement paint to the surface to act as a glue to help the cement – sand mixture adheres to the existing concrete
- Apply cement to the surface immediately before cement paint dries from 1/8″ to 1/4″ thick to fully hide all spalling areas. If you are doing a sidewalk, you will want to install a form on either side. This will help ensure the proper thickness is applied.
- Allow it to thoroughly dry before using
For more ideas and repairs you can do yourself around the home, click here.
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