If you want to build a concrete slab, keep in mind there are preliminary steps you must take first. The steps are crucial because once the concrete hardens, it will require additional time, money, and energy to redo. Depending on what you are building the concrete slab for, the steps are dependent upon the project. For example if you are building a house, you will definitely need to make sure
. the electrical wiring and plumbing is done first. An excellent article that gives you an idea of what preliminary steps are needed for building a concrete slab for you house is at http://homerenovations.about.com/od/additions/ss/BuildOwnHouse_4.htm.