Help!! Hairline cracks in basement concrete floor.

[jnovice]

I found an all brick two-stry w/basement under construction that we are having completed. The foundation is poured concrete, the basement floor is concrete. The basement floor was finally cleaned up in preparation for painting and I noticed 3 :?: long hairline cracks in the concrete floor that run a great distance across the floor. Is this something that may cause future problems? If so what should be done now?

[bkrahmer]

As some people say, it's not a question of if, but how much, the concrete will crack.

Hairline cracks in a slab are normal, expected, and not very controllable.