There are several cracks in the concrete driveway.
With a concrete crack filler
Cracks in Concretes are as: Shear cracks, temperature cracks & surface cracks which those are formed depends on climates .
Generally, if concrete splits in freezing temperatures, it is because Water got into cracks and froze. The expansion of the ICE in the cracks would force the cracks open even farther and possibly split the concrete.
The cracks in concrete and its inability to support certain structures is what is called distress in concrete.
Underlying soils movemnent. Adding to much water to concrete mix and getting shrinkage cracks. Not curing the concrete with water and it dries to fast.
stress cuts also known as relief cuts make weak points in a concrete slab to allow for expansion and shrinkage cracks. Bascially, a concrete slab is going to crack and these cracks control where those cracks occur.
Where cracks form in the asphalt/concrete, repair crews fill the cracks with tar to keep water from seeping in and widening the cracks into pot holes.
There is a product called Concrete Resurfacer that is used to fill in cracks in the driveway. Here is a link with a guide on exactly how to do this: http://www.dannylipford.com/home-improvement-video/how-to-repair-cracks-in-concrete/
it expends and etract and then the sidewalk formes cracks, concrete has cracks so when it is hot it can expand.Actually the 'spaces' aren't really spaces, they just look like it. They are there so that when the concrete cracks (and it will, due to Why_are_sidewalks_built_with_spaces_between_each_sectionfluctuations, ground imperfections, and traffic), the cracks will largely be restricted to the 'spaces'. This is so that the cracks are mostly unseen and so that people are less likely to trip on the cracks.
Over time, ants can damage concrete. However, if you keep all the cracks in concrete caulked, it will prevent the ants from damaging the concrete.