Repairing Large Cracks In Concrete Garage Floor

If your concrete is the same height on both sides of the crack you can fix it yourself.

Repairing large cracks in concrete garage floor.

A 20 foot square of freshly poured concrete will shrink about a 1 8 of an inch in each direction. Chip out the cracked portion with a maul and cold chisel. If grease oil or dirt remains in or near the crack clean it thoroughly. For bigger cracks you can use either an epoxy kit or a polymerized concrete mixture.

Epoxyshield has a good reputation and is easy to use. Concrete cracks are caused by sideways expansion poor drainage conditions or settling soil beneath the concrete. New homes cracks that occur in the first few months or years. Sweep away any loose debris then vacuum the crack.

With a cold chisel and large hammer undercut the edges of the crack. With a wire brush clean the crack. This is a two part kit consisting of epoxy and sand. Wear an n 95 respirator and turn on a fan to blow the concrete dust out of the garage.

Epoxy is a common way to fill in larger cracks and so is a polymerized concrete mix.