The cracks do not open and close. The deteriorating is coming from most of the floor. I am sure its do to poor quality work when poured and never being sealed. I am in NW Wisconsin so lot of salt had been brought in from the roads in the winter.
I have thought about tiles but cost is an issue. One of my fears is the durability. I do welding and rolling floor jacks and having jack stands under vehicles.
I have a 2 car with single door attached garage and the floor is not in great shape. There is one crack under a bench that is from room underneath the floor (root cellar). That is not that big of a deal but the floor itself is in bad shape I am guessing from salt and water. The floor was never...