Asbestos-cement and pipes
As mentioned, this material can suddenly upset us. In addition, the low heat capacity of the walls does not ensure sufficient traction, they absorb the condensate formed, and with the channel cleaning problems arise. But, in general, the material is perfectly usable, although it has its own peculiarities.
The production of the pipe in question for a chimney is based on the use of the binding properties of Portland cement and reinforcing asbestos fibers. As a result, the resulting product is highly resistant to most of the effects of aggressive media.
The process of manufacturing pipes from asbestos cement includes the stage of the formation of specialized parameters of the product on conveyor forms, the stage of water and mechanical treatment of each product. Undoubted merits of such communication include low thermal conductivity, sufficient strength, high durability and low price.
So, the object of our discussion was an asbestos-cement pipe, the use of which must not be missed. The place is located for the installation of water pipes, sewage systems, protective pipelines for laying communication and power cable systems, heat supply systems, etc.
Systems from asbestos cement - chimney and foundation
Systems assembled from the material in question do not corrode or rot, on themDo not affect the wandering currents, they do not require waterproofing. The weight of such a pipe is considerably inferior to that of steel, all together it makes its transportation and installation much cheaper. The installation at a shallow depth is permissible due to the high thermal protection of the pipe. Its service life is about 35 years. The disadvantages include some fragility, the effect of corrosion on the upper layers of the pipes.
In addition to everything described, a practical and inexpensive foundation made of asbestos-cement pipes is widely used in low-rise construction. Its performance parameters are provided by strength properties of pipes used as piles filled with gravel and cement solution and additional connections between them.
If it is necessary to strengthen the strength of pile structures, reinforcing skeletons of metal rods are placed in the pipes. Such systems are able to withstand single-storey residential buildings, wooden baths, etc. When constructing such a foundation, piles of asbestos-cement pipes should be placed at the corner points of the structure, in places where the supporting wall structures intersect.
Features of the foundation device from asbestos cement pipes
For their installation in the previously marked places with the help of borax in the ground vertical holes are made in which asbestos cement poles for the foundation are placed, the depth of such installation is up to five meters. In this case, the height of the part projecting above the ground is from 15 centimeters or more. This is necessary for the laying of the upper part connecting the piling part in the form of a load-distributing ground grating.
This columnar foundation of asbestos-cement pipes is carried out with significant cost savings and employment. With its device, a diameter of one hundred to three hundred millimeters can be considered sufficient. A non-pressure asbestos cement pipe is used.
When making a hole under the pile in its base, it is necessary to create a backfill of cushions made of sand, or gravel and sand. The pile is filled with cast reinforced concrete. If necessary, piles can be arranged in two rows, the distance between them - from three to eight of their diameters.
The protruding parts of the piles must be leveled out before the device of the grilles. If necessary, the upper part of the obtained foundation may pour into the monolith of the reinforced concrete slab.
