You have to prep the edges correctly and use the right materials.
Repairing holes in concrete floor.
It can be trowelled out smoothly over pits.
Step 3 choosing epoxy for concrete spalling repair.
Repairing large cracks pits and holes to fill large cracks and holes you need a patching compound that more resembles the concrete itself which can be mortar to which you can optionally add a latex flex agent to prevent cracking.
Fill the crack with patching mix also know as vinyl concrete patching mix is made from vinyl portland cement and sand.
Most holes can be fixed with a quality mortar mix although you should use one with a crushed stone aggregate to fill holes over 1 in 2 5 cm deep.
Fortunately patching damaged concrete is an easy task.
Dampen the area around the crack and then trowel on the mix.
If your home has concrete you may notice holes forming due to strong weather or rodents.
It works extremely well.
It can fill large holes.
Manufacturers also offer epoxy and polyurethane patching compounds designed for large holes.
Allow the floor to dry overnight until the material in the holes is completely hardened.
This is the most common method to repair your concrete floor.
Plug in the grinder and use it to smooth down any rough surfaces over the holes.
Simply pouring wet concrete into a hole in your driveway sidewalk or basement floor won t make for a lasting repair.
Holes 1 inch or deeper require a concrete mix with coarse crushed stone aggregate which bonds well with existing concrete.
Chisel the bottom of the hole until it is flat and enlarge it slightly so the bottom of the hole is wider than.
Shallower holes need a sand mix.
It covers cracks up to 1 2 inch wide.
Start by chiseling and cleaning the cracked area so the mortar bonds better.
It s easily applied to spalling that covers large areas.
Then mix the repair mortar and scoop it into the hole.
Fix a pitted garage floor special concrete resurfacers will make a concrete floor look like new every editorial product is independently selected though we may be compensated or receive an affiliate commission if you buy something through our links.
Then put on safety glasses and a dust mask and insert a masonry wheel into a 4 inch grinder.