Looks like the same patches I put on my carport’s cement floor.
Of Course, I didn’t have worry about millions of gallons of water trying to escape through my patches.
There seems to be some type of irony here in that the design may have created cracks just above the drains just so the drains can remove the water from the cracks....
Not to mention each of those cracks represent a weak point in the slab.
When you drive down the interstate, you may visualize it as one continuous concrete ribbon unbroken for miles.
Not so. Concrete paving is a series of individual slabs, with “control joints” spaced about 30’ apart, and spanned by steel dowels to transfer the load from one slab to the next.
When placed, concrete eventually cracks, due to shrinkage as it cures. The trick is making it crack where YOU want it to, where provision can be made to seal the pre-planned joint, and with provision for load transfer.
http://www.cement.org/for-concrete-books-learning/concrete-technology/concrete-construction/contraction-control-joints-in-concrete-flatwork
Placing Joints in Concrete Flatwork: Why, How, and When
https://www.concretenetwork.com/concrete-joints/load-transfer.html
Load Transfer
Transferring loads across joints.