Have had dogs on cement for the 10+ years I've been hunting and have never touched a dogs foot because of the cement.
Since every one is saying what they have heard.... I heard cement makes a dogs pad tougher.

You are right on the money friend, Ol drew called me today and I told him the same thing hell if anything it make them callus up lol never had any problem with it and it don't make a dog blow pads quick, mine smell the same track as anyones dog and I wash pens everyday also.