Last spring,(April 2000), I had a new concrete patio, stoop walkway and driveway poured. Everything was beautiful as fas a the concrete went but it wasn't untill this December of 2000 and this January, 2001, that I began to notice a few places where rust was bleeding through to the top layer of the concrete and I also noticed a crack about 5"in length nearest the house. Now I realize that the concrete is going to expand and contract due to the weather and that would explain the crack and I can fill that but as far as the rust bleeding through,I'm at a loss? I'm almost certain that the rust is from the wire mesh that was placed down prior to the pour. My biggest concern is how do I get rid of the ugly rust marks. I mean it's not that bad unless you really look for it but I AM LOOKING FOR IT AND SEE IT! Any suggestions on how to correct and rid this would be much appreciated.