ok my living room is about 20x20i removed the carpet now it's just sub wood floori want to use cement + polyfiber or whatever you call it and sand and really fine crushed rocks as my floor, no wiremash reforcement, and in one big piece, no breaks in the middle or anywhere, do you think it'll work?will i get cracks because it's one piece instead of many smaller piece? will it crack because i'm cheaping out on not buying wiremash screen?
cracks every where, on top of wood. Wood swells and shrinks. Don't worry you better buy a shovel and wheel barrow, so when you floor falls threw, you will have something to excavate with.
I seriously doubt that your floor joists are sized to accommodate the weight of a concrete floor. I'd look for an alternative.
Any large slab of concrete is subject to cracking. It doesn't matter what you do, it can happen. You can use steel reinforcing, pour it very dry, pour it in sections, etc. to try to minimize the chance of cracks but there will always be a risk that they will show up. Even if you scribe in joint lines to try to control where the cracks are, they may show up somewhere else. I would look for another alternative.
Yes you will get cracks because there will be nothing to let it expand and move. Not only that, but your whole floor may collapse because of the wieight. Do you have any idea how much a whole concrete floor would weight? Better give this one some long and serious thought.
there is a flooring product that is a 2 part epoxy and aquarium rock you mix the epoxy with the rock and you spread it out over your floor. you have to stay off the floor a minimum of 24 to 36 hours so the floor sets up and hardens. a lot of pool companies use is around the tops of pools, i've installed it a couple of times and it is awesome.
