Other than earth movement, moisture is the main cause of cracks in concrete. Here's how to deal with moisture damage.
Things You'll Need
- Bonding Agents
- Pointing Trowels
- Wire Brushes
- Concrete Caulks
Clean out cracks of any size as best you can, using a wire brush or even a strong spray of water.
Fill small cracks (less than 1/8 inch) with caulk specially made for concrete. (Be sure cracks are dry before caulking.)
Fill larger cracks or small holes (less than a few inches) using patching products designed for concrete. These usually are in the form of a powder that is mixed with water. They typically expand as they dry and become very hard.
Apply sealant or paint to the concrete.
Tips & Warnings
- Patching compounds generally work better if the crack is damp or wet.
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