also important economic factors, developers seek to reduce construction costs, without losing reliability and durability.Therefore, in the world market appears more and more new materials, created on the basis of well-known, traditional.One such material is reinforced concrete.
While saying "one of the materials" is not quite true.Reinforced concrete is a whole class of composite materials, which are based on cement.The most widespread known to all builders of reinforced concrete - a material, high performance is due to the interaction of cement and steel reinforcement rods.Reinforced concrete has existed for nearly two centuries, and in the process of learning and improving, new methods of reinforcement.
Now there are two basic types of concrete reinforcement - using continuous filaments, ie, mesh or tissue, and with the help of small segments of the fibers, so-called fibers.Fiber concrete is more progressive, primarily because the traditional two-dimensional reinforcement ensures the strengthenin
The introduction of fibers into concrete, it is possible to overcome one of the major drawbacks of the concrete - a low tensile strength and flexural strength.Reinforcing fibers assume a tensile stress and the tensile strength increases by 250%.Fiberglass facilitates uniform distribution of moisture in the concrete, thereby decreasing the internal loads, fracture toughness increases twice and 12 times - the impact strength of the concrete.During the production of fiber-reinforced concrete is formed in it much less water channels and capillaries than conventional concrete, this is caused by its high resistance to frost.We should also note the stability fiber-reinforced concrete to aggressive media, high impact strength and water resistance.
should not think that getting the unique properties can be simply poured into the concrete mix metal shavings.Materials of construction for fiber, specially developed and tested many times before then, developers have a patent and the necessary certificates.Technology is also being developed in which reinforcing fibers are uniformly distributed throughout the volume of the mixture.For example, in the production process used stalefibrobetona electromagnets cause the metal fiber is distributed in the mass of concrete.
To distribute the concrete fiberglass used two ways to obtain a mixture: guniting or, alternatively, sprayed on a die components and premiksing - preliminary mixing, after which the mixture was molded by a roller pressing, vibration compaction, extrusion and others. Also vibroekstruzionny method is used in the manufacturebazaltofibrobetona.
Application fiber-reinforced concrete is very wide, it may not only successfully replace traditional concrete in all areas of the building complex, but also to perform a specific task.
example, GRC allows to embody the most original architectural projects, as it can be formed from objects of any shape, texture and relief, and create thin-walled structures.It is used to produce wall panels, roof tiles, decorative items, small architectural forms, elements of underground structures, drainage systems, tunnels, highways, etc.Thanks to sound-reflecting properties of GRC is used in the construction of protective barriers along motorways.It demands this kind of fiber-reinforced concrete, and in the restoration work, as it can be used to simulate any material, and, besides, it does not weigh design and does not create additional load on the foundation.
pay attention to this stuff and specialists who design zoos, as it is ideal for simulating the natural landscape - stones, rocks and other elements.Great value for the founders and employees of zoos is that this material is well washed, and from it we can create a strong, thin-walled structures, within which you can disguise equipment or technical facilities.
field of application stalefibrobetona are prefabricated, this material reduces the number of joints and improve the reliability of elements such as pipes, beams, piles, components of bridges, offshore structures.From it built explosion proof construction, roads, bridge decks, irrigation canals, industrial floors.It has proven stalefibrobetona and during repair and reconstruction work.
Fibrous concrete reinforced with polypropylene fibers is used for the manufacture of self-leveling floor screeds, facade solutions, water tanks.Because polypropylene fibers are not susceptible to corrosion, this material is suitable for the construction of hydraulic structures - weirs, reservoirs, lagoons, sea barriers and structures which have to meet high requirements for resistance to salt penetration antiobledenyayuschih - roads and bridges.
also in the construction of offshore structures can be used bazaltofibrobeton, it is resistant to electrochemical corrosion, do not react chemically with salts or dyes.Fibrous concrete reinforced with basalt fibers, can also be used as a substitute for concrete in construction of residential buildings and pavements, and as material for the creation of such important facilities like runways of airfields, the reactor compartment of nuclear power plants, coastal levees and dams.
can say that the reinforced concrete - a building material with unique opportunities arising from the optimal combination of technical, operational and decorative properties.