concrete floor to replace wooden floor Drainage pipes, concrete, footings and foundations. Post your questions and find answers here

[jmichalunio]

i have moved into a old house and want to replace the old wooden floor with concrete the house has had a damp proof coarse outside and internal damp proof has been dilled in to the brickwork.the house has had some of the floors concreted and only the hall and two bedrooms need doing to complete which have air bricks under floor level presumably to keep a flow of air under the boards.my question is how do i concrete the remainder without disturbing the damp proof,what do i use for hardcore to fill up to concrete level,what membrane do i use and will it get rid of the damp smell