Using a diamond blade on your circular saw cut a 1 2 in deep groove along each side of the crack.
How to repair large cracks in concrete garage floor.
Allow the adhesive to dry completely.
With a cold chisel and large hammer undercut the edges of the crack.
With the right materials and tools fixing a crack in your garage floor is something you can do yourself.
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.
Mix a suitable amount of sand mix with water as instructed on the bag.
With a small paintbrush coat the crack surface with concrete bonding adhesive.
Garage floor repair usually involves fixing cracks or patching pitted and scaled areas on the surface.
Be sure to wear eye protection.
Fix the crack in your concrete garage or basement floor yourself by following these step by step directions.
Getting a professional to fix these types of cracks early can lead to less long term damage and the sooner you get it sorted out the better.
Before we get into specifics on how repair cracks in garage flooring let s go over a few examples of when you ll want to call in a professional for help instead of taking the diy route.
In the video below i ll show you how we repair garage floors that have a crack in them.
This will help hold the patch in place.
The secret to fixing wide concrete cracks is to undercut the sides of the crack to give it an inverted v shape.
How to repair wide concrete cracks.