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