Imakemess

I make 55 and clear 600 a week. So no ten k in two months

Isn't it common place to set skreet pipes to ensure slab height

Basic rule in engineering is concrete is meant to crack. Generally we would do a nickel test, if it could fit in the crack it would need repair. This repair would be considered "structural", meaning you would need an engineered letter stating the repair. Basic repair is an epoxy injection