Then fill the remainder of the groove and smooth it over.
How to fix cracked cement floor.
Prepare the cracked area for patching.
If you don t want to use a diamond grinder.
If you re using mixed concrete patch mix according to the manufacturer s direction and then trowel the patch into the crack image 2.
If grease oil or dirt remains.
Sweep away any loose debris then vacuum the crack.
Run a bead of epoxy concrete repair compound along the crack.
Choose your concrete repair product.
Directions with a wire brush clean the crack.
Choose your concrete repair product.
This will help hold the patch in place.
Scrape off most of the excess repair material after about 10 minutes using the putty knife.
Make another pass with the caulk gun if the first bead didn t fill the entire crack.
Snip about 1 8 in 0 32 cm off of the tip then run a continuous bead of compound along the crack.
Then after another 10 minutes use the concrete rubbing stone or the palm sander to smoothen the repair material even.
Concrete surfaces cannot be repaired with concrete.
With a small paintbrush coat the crack.
With a cold chisel and large hammer undercut the edges of the crack.
Load a cartridge of liquid concrete repair compound into the cradle of a caulk gun.
Pour concrete resurfacing mixture into the crack and smooth it out with a rubber floor squeegee.
Feather the edges to get the best appearance.
To use the concrete filler cut the nozzle off the bottle and slowly fill the cracks image 1.
First use a small hammer and chisel in combination to knock away any.