The foundation of asbestos-cement pipes can be built independently, but before starting work it is necessary to consider all the features of this type of foundation, as well as learn in detail about the process technology. This type of foundation acts as a successful alternative to a tape, monolithic or slab base. Such a foundation, as a rule, is used in the construction of structures of minor mass. In addition, the work will not be accompanied by too much cost. It should be noted that this type of foundation is almost indispensable when it comes to frame houses or outbuildings. But one cannot ignore the fact that it has certain disadvantages, one of which is expressed in the fact that the building will not be able to have a basement or basement.
Construction Features
The foundation of asbestos-cement pipes does not involve the use of heavy equipment. The foundation, which is based on supports, can be made in one of two ways. The first involves the use of finished piles. But in private housing construction this method is of little use, due to the need to rent specialized equipment. The second method involves the manufacture of pillars directly in the soil. In this case, the solution must be poured into the formwork, which is formed in a previously dug hole in the ground. In the role of formwork, various designs are used, among which may be wooden panels.
The foundation of asbestos-cement pipes is quite easy to equip also for the reason that pipes that are used as formwork have very little weight. Using such products, you get a guarantee that concrete will not be exposed to water. In addition, the supports are not afraid of external damage, because asbestos-cement pipes have a fairly impressive margin of safety. All these qualities make them ideal for arranging fixed formwork. You can choose pipes of the desired diameter for construction.
The foundation of asbestos-cement pipes can be erected in an area that is characterized by uneven terrain. Moreover, a high percentage of soil moisture is allowed. It is important to consider the weight of the future structure before starting construction, since with an impressive mass the number of supports should be increased.
Foundation Technology
Initially, it is necessary to make all the calculations, the implementation of which is preferable to entrust to professionals. When determining the number of poles, it is necessary to take into account the fact that the largest step between the supports should not be more than 2.5 m. The next step is to move on to preparing the territory on which the construction will be carried out. The soil must be free of debris and foreign objects. From the fertile soil layer to get rid. After this, the land, as a rule, is transferred to another part of the site so that it does not become an obstacle during the work.
Before making a foundation of asbestos-cement pipes, it is necessary to mark the base. At the same time, it is important to check how correctly the angles are set, for which it is necessary to pull a fishing line or a special marking cord. This must be done not only on the sides of the base, but also on the diagonals, while it is important to ensure that you get the perfect rectangle. Only after this can we begin to carry out drilling of wells in which the supports will be installed.
In order to equip the columnar foundation with asbestos-cement pipes, it is necessary to prepare wells that are drilled through a garden drill, but you can also use the TISE tool. If you intend to carry out work in areas with difficult soil, then you should use a drilling rig, which will have to be rented. It must be remembered that this approach will increase the cost of the work. It is necessary to deepen the supports below the freezing line of the soil.
Arrangement of pillows
Before installing asbestos-cement pipes under the foundation, it is necessary to prepare the bottom of the well, for which a sand cushion is poured there. You need to pour so much that after tamping you get a layer whose thickness is about 20 cm. To make the pillow easier to tamp, you need to spill it with water. If the work is carried out on excessively weak soils, then a concrete support can be created at the bottom of the well, however, its diameter should be somewhat wider compared with this characteristic of an asbestos-cement pipe. In order to provide isolation, it is recommended to lay a layer of dense polyethylene at the bottom of the well, this will eliminate the likelihood of moisture entering the soil from the concrete solution.
Pipe installation
When you mount the foundation on asbestos-cement pipes with your own hands, then at the next stage you can proceed with the installation of asbestos-cement pipes. It is necessary to install the element strictly in an upright position, for this it is necessary to use spacers. It is imperative to analyze the evenness of pipe installation using the building level.
Reinforcement
The support must be strengthened, for this you should first prepare the reinforcing frame of the rods. Horizontal and vertical belts are required. After the fittings can be lowered into the pipe. If you plan to build a horizontal strapping, then the reinforcing rods should be brought out to connect with the grill reinforcement.
Pouring concrete
After this, you can begin to fill, it must be done in layers, so that it is possible to remove air. The space obtained between the pipe and the well must be filled with sand and carefully packed. The upper part of the pipe should be cut according to the level, after which you can proceed with the installation of the head and the installation of waterproofing. If a grillage is expected, then the next step is to deal with it.