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How to Repair Asphalt and Concrete Cracks

The Martha Stewart Show, March 2011

As winter temperatures rise and fall, the volatility can lead to cracks in driveways and sidewalks. Apart from being unsightly, these cracks can allow water to seep in, enlarging them and eventually turning them into holes.

TV carpenter Sean Ennis shares an easy method for filling cracks in asphalt and concrete surfaces.

Tools and Materials

  • Wire brush
  • Screwdriver (optional)
  • Canned air
  • Caulk gun
  • Concrete or asphalt crack filler
  • Putty knife
  • Sponge

Crack Repair How-To
1. Ensure that the crack is as clean as possible -- free of stray concrete, dirt, or plant life -- by using a wire brush and canned air to remove debris. If necessary, break off loose pieces of concrete with a screwdriver.

2. If repairing a concrete sidewalk or driveway, apply concrete sealant to crack using a caulk gun. If asphalt, use a driveway-specific asphalt filler in the same fashion.

3. Using a putty knife, smooth the filler, pressing it into the crack. Remove excess filler with the putty knife and a sponge.

4. Allow filler to cure for three days.

Resources
Workforce caulk gun, Loctite concrete crack sealant, and Latex-ite driveway crack filler, and all other tools available at The Home Depot.