Asbestos cement is considered a valuable building material, which is obtained artificially. The technological properties of asbestos cement pipes distinguish them from competitive products. In their manufacture, basic components such as asbestos and cement are used.
The production of these products includes the mandatory use of Portland cement, which does not contain additives - M400 and M500. The manufacturing process involves mixing fibers with cement. The first step is to form a blank. Then the asbestos-cement pipe is placed on the conveyor. After hardening, it is lowered into the pool, and at the final stage grind. Asbestos-cement pipe is a universal product that has a number of valuable properties.
Advantages of the material:
- resistance to decay and corrosion;
- low thermal conductivity;
- high strength;
- lack of tendency to fouling;
- durability;
- reliability;
- low cost;
- resistance to aggressive water.
Among the shortcomings can be distinguished fragility.
Asbestos-cement pipe is of three types:
- gas pipeline;
- plumbing;
- sewer.
Pressure and pressureless pipes are manufactured at the production site. They have differences and are used in different industries.
The non-pressure asbestos-cement pipe is intended for the external pipeline, sewerage, chimney, fences, cable laying, as well as for drainage systems. Using these products from asbestos cement, telephone cables are laid. In addition, they are used as pillars for fences and in the construction of the foundation. Pressure products are used for ventilation, gas supply, water supply, garbage chute and land reclamation.
Connection Methods
Suitable couplings, brackets, brackets are used to connect the asbestos-cement material. The most commonly used method of docking products. Before connecting them, the coupling is heated in hot water (90-100 ° C). Then one end of the coupling is put on the already laid pipe, and its second end is fixed on the other side. On wet ground, it is recommended that the coupling after connection be filled with hot bitumen.
The asbestos-cement pipe 100 mm in diameter has a weight of 24 kg and its length is 3950 mm. There are products from asbestos cement with a diameter of 100 to 500 mm, with a length of 3.95-5 meters. Different cross-sectional diameters depend on the area in which building materials are used. When designing, it is important to choose the right products.
Technical requirements for the finished product:
- straightforwardness of products;
- compliance with all required standards;
- compliance with the complete set;
- the material must be waterproof;
- all pipes are tested by hydraulic pressure.
It is strongly not recommended to replace pressureless products with pressure products, and vice versa! Non-pressure asbestos-cement pipes, the price of which is slightly lower, can save. However, it is worth considering that gas must be supplied under pressure. If the material does not meet the specifications, an accident may occur.
The production technology of these products is well developed. When using these products, installation costs are reduced by 50%.