Installing Hardwood Floors On Concrete Slab?

The floor should be installed on a sub-floor (plywood or OSB) with a vapor barrier is placed over the concrete first.

Do-It-Yourself (DIY) Section
  There are a variety of ways in which different wood floors can be installed in a home as "nail", "bottom line", "below basic" and "floating".
  What installation method you choose depends primarily on the construction of their "underground". The "underground" is what's under the existing carpet, vinyl, or wood floor today. For example, if you pull a corner of the existing carpet and find concrete, you have to go with a floating rate facility as you will not be able to use a nail or staple down method without a lot of hard work.
  Floating installation
  The floating installation method is the easiest DIY-installation available. "Floating" implies the installation of a shop floor so that no physical item, such as nails or adhesives, to anchor your new floor to your subfloor. The versatility of a floating facility allows floating floor to be installed anywhere in your home. A protective pad is placed between the soil and subsoil of timber that protects the wood against moisture and reduces sound transmission to your neighbor as you walk across the floor. The floorboards are then linked through a click system or an adhesive between the hardwood boards themselves.
  Details of the floating facility

so it is going to install tongue and groove reclaimed oak floor on a concrete slab? O. K.
  You can put tar paper on the concrete pounds (90 sense) as a barrier against moisture. one or 2 layers it's up to you.
  But now we must also leave a soundproofed or after the word is a''eco''siempre to walk on it. Theres different prices for different quality. Buy what you can afford – the difference is much less than that announced.
  Insullation Fiberglass does not work so I do not think about it.
  The wooden floor space of 1×2 nailed 12''de separation as it proceeds with a nail gun rented flat and the floor shorter nails may be encountered.

I'll be doing it soon and do not have all the answers (yet). There is no possibility of "floating" if councils do not click together using some kind of reed and forest system. Keep in mind, you need to lock the boards together to keep moving individual tables, too.
  I think if they are intertwined, the moisture barrier must prevent the soil from sliding and shifting around. (I'm thinking of using a wood glue to keep them locked up together and then float the floor).
  Go to Home Depot and look at the floors they have there that can go in a basement (which means it can go into the concrete). See if you can get installation instructions. That would be the last word on the subject (which is what I do to verify my guess work).
  Good luck!