A job well done takes time so make sure you follow the necessary repair steps closely.
Repair wide cracks in concrete.
How to repair wide concrete cracks.
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.
Taking on a large concrete crack repair project can be somewhat daunting if you re not well prepared.
The secret to fixing wide concrete cracks is to undercut the sides of the crack to give it an inverted v shape.
This may require a hammer and chisel to break away the pieces.
But you have to enlarge the crack photo 1.
Fix the concrete crack with your selected repair product.
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.
However for cracks wider than inch quick setting cement based fillers are advisable to use.
Many concrete crack fillers sometimes called masonry crack fillers are designed for cracks up to 1 4 inch wide.
They have a texture similar to grout and can be smoothed and how to repair wide cracks in concrete read more.
This will help ensure that the patching material used will not pop out of the crack when the concrete expands and contracts.
Best for large cracks.
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.
If you see multiple cracks or some very large cracks i d recommend using this particular method to repair them.
To concrete cracks inch wide or narrower apply an epoxy or latex patching product view example on amazon.
Patching compounds typically are mixed with water and applied with a trowel.
Our crack was wide and deep so we chiseled out the entire opening and refilled it photos 2 and 3.
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.
Here you actually want to mix a new batch of concrete and simply fill the cracks with that.
Wide cracks in concrete are best patched and sealed with a concrete patching compound.