A job well done takes time so make sure you follow the necessary repair steps closely.
Repair wide cracks in concrete.
This will help ensure that the patching material used will not pop out of the crack when the concrete expands and contracts.
Look for a product with a flexible formulation so it will move with the old concrete and not pull away from it when it freezes and thaws.
Here you actually want to mix a new batch of concrete and simply fill the cracks with that.
Our crack was wide and deep so we chiseled out the entire opening and refilled it photos 2 and 3.
Wide cracks in concrete are best patched and sealed with a concrete patching compound.
To concrete cracks inch wide or narrower apply an epoxy or latex patching product view example on amazon.
Many concrete crack fillers sometimes called masonry crack fillers are designed for cracks up to 1 4 inch wide.
For cracks wider than inch you may want to consider undercutting the crack to make sure that the crack is wider below the surface than at the surface.
Best for large cracks.
If you see multiple cracks or some very large cracks i d recommend using this particular method to repair them.
How to repair wide concrete cracks.
The secret to fixing wide concrete cracks is to undercut the sides of the crack to give it an inverted v shape.
Taking on a large concrete crack repair project can be somewhat daunting if you re not well prepared.
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.
But you have to enlarge the crack photo 1.
Fix the concrete crack with your selected repair product.
Fill with a polymer modified cement such as quikrete concrete resurfacer no.
For cracks up to 1 2 inch wide in horizontal concrete surfaces concrete crack sealants and caulk based concrete fillers will be the best option.
However for cracks wider than inch quick setting cement based fillers are advisable to use.
Smaller cracks less than 1 4 inch wide can be repaired with a concrete caulk or liquid filler.
Clear out chipped loose or unstable concrete from the repair area.
Patching compounds typically are mixed with water and applied with a trowel.