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Originally Posted by dirtydog  As you can see in this picture they have used precast concrete beams for the floor or ceiling depending which way you look at it, these are about 5cms thick, you can see in this picture that they are supported with wood to stop them sagging or them breaking when they do the concrete pour on top of it, alas they always sag and if it is the roof area this is where water will saty due to the sagging in the middle.  |
How do the concrete precasts tie into the supports? Do they simply lay there and get held in place by the concrete pour on top? Overall how thick would the floor be counting the precast beams and surface concrete?