on problem soils are particularly prone to shifting of, as a support for the building is often used this type of foundation is floating.He represents a monolithic plate, located immediately beneath the entire area of the house.In that case, if there is progress, the foundation will move along the ground and the building.As a result, the wall will remain intact.
Floating foundation is also called a "slab".In the construction used several types of ground under the building: recessed, and melkozaglublenny srednezaglublenny.In the private housing construction in self-construction of houses is used almost only the latter type of slab foundation.This is due primarily to the fact that the construction of it - the process is time consuming and costly in terms of money.Experts for the same reason, private traders are advised to apply this ground only by a small building.So how do you build such a foundation of their own?
First, you must prepare the site.With her clean all the debris, uprooted bushes, etc.Then make markings around the perimeter of the future building.It is important to see to it that all the corners are straight.Once this work is completed, it begins to excavate itself under a floating foundation.Its depth depends on the characteristics of soil at the site.Usually it takes into account the level of underground water and the depth of soil freezing.Around the perimeter of the well casing is installed.
Further, in order to arrange a floating foundation, at the bottom of the pit poured a layer of sand mixed with gravel, which will serve as a kind of cushion while reinforcing drainage.The thickness of the layer depends primarily on the severity of future building walls.Sand poured concrete on top of 5 cm and installed waterproofing.To do this the bottom of the excavation to lay two layers of roofing material in different directions promazyvaya seams bitumen.
Floating foundation technology of erection which particular complexity is no different, must be reinforced.For this, the waterproofing layer is set at several places pieces of wood of the same thickness.They will serve as a support for the wire mesh.The latter is made of rods 10-16 mm.The thickness is also dependent on the severity of the house.The mesh size of wire mesh - 20 * 20 cm. It is best if it is not welded and wired.On it is placed back bars, and on them - the second of the same construction.Thus, the foundation of the future will be securely reinforced.All you need to do on - pour concrete all this construction.The foundation must be carefully aligned on top.Finally, concrete ripens a month after casting.After that it can be mounted and waterproofing wall.
Like any other design, the floating foundation has some drawbacks.First of all, it is, as mentioned above, a sufficiently high value.After all, concrete, metal, rubble and sand it takes much more than, say, on the same tape, or a bar.In addition, the complexity and the huge amount of work do not allow to build a similar structure without the use of technology.It is unlikely that you will be able to dig a pit, even a small building, using only a shovel, not to mention filling it with concrete.Because
is primarily to determine the feasibility of using this type of a home base, as a floating foundation.Disadvantages of such support can make a good and right choice, for example, tape or pile structure.
