Fill it the crack can then be repaired and filled with something as simple as concrete caulking for hairline cracks or concrete sealer designed to fill larger cracks.
Fix cracks in concrete driveway.
Be sure to clean out the cracks out as well removing any dirt or loose concrete so the patching material will adhere to the concrete.
A mixing paddle chucked in a drill makes preparing the patching material easy.
Sand mix or concrete resurfacer which do not contain gravel may be used if the area to be repaired is not large or deep.
Now you can move onto the actual methods of fixing a crack in the concrete.
If you have a lot of cracks you may prefer to use dry concrete mix or concrete patching compound instead.
How to fix cracks in concrete.
Mix concrete for repairs.
Small cracks here and there that are narrower than inch are most likely the result of shrinkage as the driveway cured.
There are four main methods at your disposal which you can use to fix cracks in concrete.
Cracks up to inch in width can be filled with sealant.
These include using simple concrete glue filling the crack with more concrete using expanding foam and even starting from scratch.
Put the mix or compound in a large bucket and add water as directed on the label.
Pour the wet mix into the cracks and use the pointed end.
You should also use a trowel to compress the material firmly into the crack.