Concrete, while durable and highly versatile, is susceptible to surface cracks, weathering and pitting over time. To repair pitted concrete, you must fill the individual pits with a concrete repair mix. Once you have properly cleaned and repaired the hole, you can easily fill the hole with newly mixed concrete for a flawless repair.
Insert the chisel into the pitted concrete and fashion the hole into a square by gently tapping the end of the chisel with a hammer. Be sure to undercut the sides of the square hole slightly so that the concrete will properly set. You can achieve a proper undercut by angling the chisel inward so that the sides of the square are sloped slightly inward instead of straight down. This ensures that the concrete patch does not easily pop loose once it is set. Chisel the bottom of the hole so that is is uniformly flat.
Sweep out the chiseled pieces of concrete with the wire brush.
Brush on the concrete bonding liquid to the sides and bottom of the concrete hole using a paintbrush.
Pour the dry cement mix and water into a plastic bucket in the ratio instructed on the package. Mix thoroughly until the cement is of uniform consistency.
Pour the cement into the hole and firmly press it into the bottom and sides of the hole with the trowel.
Sweep across the top of the cement repair with the flat side of the trowel in a fanning motion until the cement is even with the existing concrete. Let the repair dry for 24 hours.
Things You Will Need
- Wire brush
- Concrete bonding liquid
- Plastic bucket
- Flat steel trowel