How To Fix Cement Floor Cracks

The inside of the crack must be clean and dry.

How to fix cement floor cracks.

Minor problems like this generally do not indicate any structural problems that require resurfacing but it is best to tend to cracks as soon as possible once a small crack or chip appears future wear and tear will only cause it to expand. The secret to fixing wide concrete cracks is to undercut the sides of the crack to give it an inverted v shape. If you re using mixed concrete patch mix according to the manufacturer s direction and then trowel the patch into the crack image 2. Vacuum out the crack to remove any dirt debris and loose concrete.

Using a diamond blade on your circular saw cut a 1 2 in deep groove along each side of the crack. To use the concrete filler cut the nozzle off the bottle and slowly fill the cracks image 1. Check the cracks in a few minutes to see whether the filler has settled. To fix a crack in your concrete floor or driveway you ll need a caulk style waterproof liquid repair compound and a caulk gun both of which you can buy online or at a home improvement store.

Wear an n 95 respirator and turn on a fan to blow the concrete dust out of the garage. Installations of concrete can last hundreds of years but sooner or later most end up developing small cracks gaps holes and crevices. In order to prepare the crack for the compound use a wire brush to scrub away any loose concrete and debris. Fix the crack in your concrete garage or basement floor yourself by following these step by step directions.

How to fix you re cracked concrete floor. Inject the crackweld resin into the crack to prime the crack and wet the inside edges of the crack. This helps the repair material to key into the crack creating a mechanical bond in addition to the chemical bond between the patch material and the concrete.