How To Repair Cracks In Cement Garage Floor

I m not sure what the best way to do this is.

How to repair cracks in cement garage floor.

A 20 foot square of freshly poured concrete will shrink about a 1 8 of an inch in each direction. With a wire brush clean the crack. Fill the crack with epoxy based concrete crack filler. With a cold chisel and large hammer undercut the edges of the crack.

Preparation and repair tools and methods depend on the crack width and quantity of cracks. You can repair a concrete floor by cleaning and straightening the damaged area and then filling it with mortar. Apply this to the crack with a putty knife and smooth the surface off to be level with the rest of the floor. Vacuum away all concrete debris.

I want to level the sides of the crack seal it and end up with a flat floor. Sweep away any loose debris then vacuum the crack. When a garage floor is first poured the concrete begins to harden contractors say cure and when this process takes place the concrete shrinks a little. Not only is it jagged but the sides of the crack range from flat to about 1 2 high.

With the right materials and tools fixing a crack in your garage floor is something you can do yourself. Garage floor repair usually involves fixing cracks or patching pitted and scaled areas on the surface. Fill the grooves and the crack with a polymer modified cement. This will help hold the patch in place.

Mix the powder with water to form a paste about the same consistency as toothpaste. Cut small grooves on both sides of the concrete that is cracked you can use a diamond blade on a circular saw and cut half inch grooves on both sides of the cracks. If grease oil or dirt remains in or near the crack clean it thoroughly. To repair a small crack in a cement garage floor use regular cement.

In the video below i ll show you how we repair garage floors that have a crack in them. As this happens small shrinkage cracks appear in the concrete. You can use quikrete concrete resurfacer.