New to the building technologies - fiber concrete. The name of it is directly related to the composition of the new material: it includes concrete and fibrovolokno. Fiber reinforces the concrete mix, giving it additional strength to the structure. The theme of this HouseShief.ru material - the use of fiber-reinforced concrete. We will look at all aspects of this new technology, where it may come in handy, and answer the question whether it is possible to produce self-reinforcing fiber.
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- 1 What is it, fibrous concrete, and why it is so in demand
- 2 Types of fiber and fiber-reinforced concrete characteristics depending on the filler
- 2.1 Properties and types of steel fibers for concrete
- 2.2 Nonmetallic fibrovolokno concrete from polypropylene to basalt
- 3 Benefits and nuances of application of fiber-reinforced concrete in construction
- 4 How to produce the fibrous concrete in the industrial embodiment and directly on site
- 5 Which uses fiber concrete
- 5.1 National architectural elements of fiber-reinforced concrete
- 5.2 The use of fiber-reinforced concrete in concrete construction
- 6 How to make fiber for concrete with their hands: Helpful videos
- 7 Price per kilogram of fiber and how much it is necessary for the production of fiber-reinforced concrete m³
What is it, fibrous concrete, and why it is so in demand
The main problem constructed from concrete objects - the gradual destruction of the monolith under the influence of external and internal factors. The search for ways of strengthening structures led to the invention methodology reinforcing a concrete mixture using a fibrous filler.
Material called fiber concrete. Now it is becoming increasingly popular in the private and industrial construction. So there it is, fiber concrete? Fiberglass - this is what is used as a filler: metallic and non-metallic thread carbon, glass, acrylic, basalt.
Types of fiber and fiber-reinforced concrete characteristics depending on the filler
Characteristics of fiber-reinforced concrete is directly dependent on the type of filler. In addition, the quality of the material affects the size of the fibers. Thus, short fibers of length 3-4 mm are used to create mixtures for making decorative elements of plaster and reinforcement plaster. A fiber length of 6 millimeters increase strength lung compositions 12mm - strengthen foundation and slabs, Hydro-technical constructions.
Properties and types of steel fibers for concrete
Reinforcing steel fiber concrete is used for the production of paving slabs, concrete fences or other massive objects that require high strength. Such a building material called stalefibrobetona. For the production of fiber-reinforced concrete using different kinds of metal fiber:
- metal wave fiber concrete - is able to absorb vibrations. Can be manufactured with plated brass, brass gives the best coupling with the solution;
- milled - cut from a metal sheet. Such a fiber has a triangular cross section and does not form the characteristic "urchins";
- anchor - looks like a bent wire. Saves floor abrasion perfectly resists mechanical stress;
- Steel anchor fiber of the sheet metal - is characterized by cuts, made from high-strength material.
Flow wave fiber - up to 40 kg per cubic meter
Nonmetallic fibrovolokno concrete from polypropylene to basalt
Nonmetallic fiber has no such strength properties as steel, but it greatly improves the quality of concrete structures:
- Polypropylene fiber for concrete - used in the production of gas- and foam. Is the most affordable, great for screed;
- fiberglass - gives a mixture of plasticity. Very easy, with her love working sculptors and architects;
- Asbestos - significantly increases the service life of finished products. Typical alkali-resistant and appreciated for its fire resistance;
- basalt fiber concrete - used to create a plaster and concrete structures, prevents cracking of concrete.
Note! Using synthetic filler greatly reduces the weight of the concrete structures.
Benefits and nuances of application of fiber-reinforced concrete in construction
Fiber concrete - a relatively new material in construction, and while it is impossible to speak about its widespread use. Like any building material, it has not only advantages but also disadvantages.
The main advantages of the use of fiber-reinforced concrete:
- reduced costs for construction. You can save on installation reinforcement cages and grids;
- concrete structures do not crack due to the uniform distribution of the reinforcing fibers throughout the casting mass;
- composite material He is not afraid of fireEven open. When exposed to high temperatures it will not crack;
- fibrous concrete has a relatively low weight. Architectural elements from it is not difficult to deliver and assemble;
- fiber-reinforced high strength characteristics allow to reduce the thickness of the filling.
Objects are not afraid of fiber concrete in temperature and moisture penetration
Have fibromassy and one drawback: while its value is higher than normal fill. Fiber, metal or synthetic, it is worth a lot, but if you take into account the longer life and reducing the fill volume, the difference is not that significant.
How to produce the fibrous concrete in the industrial embodiment and directly on site
Fibrous concrete architectural elements produce on industrial equipment. For producing structures using synchronously running mechanisms cutting metal fiber and the mixer. The resulting mixture enters the casting mold.
Fiber concrete can be cooked directly on the construction site. For this sifted through a fiber and filler is mixed with sand. After the dry mix is introduced cement and water of plastics.
Which uses fiber concrete
Products made of composite concrete used for water drainage shafts and sewerageIn housing and road construction, very popular facade panels of fiber-reinforced concrete.
National architectural elements of fiber-reinforced concrete
can be made of the composite body is not only large but also small objects. Fiber concrete with glass fibers for the production of popular elements facade decorations.
If you want to load-bearing structures, steel fiber concrete is used. It is characterized by high performance and similar articles made of concrete B100 class.
The use of fiber-reinforced concrete in concrete construction
Monolithic construction reduces the load on the local foundation, Allowing you to build multi-storey building. And if you use more composite and concrete, the reliability and durability of the object is difficult with something to compare.
Monolithic structures of concrete fiber array characterized by high seismic resistance. They quietly accept sudden change in temperature, resistant to moisture. A definite plus monolithic composite construction - possibility of building complex structures for configuration.
How to make fiber for concrete with their hands: Helpful videos
Fibro industrial production can be bought in stores materials. Is it possible to make fiber concrete with their hands at home? For a solution to this difficult task the author took the following video material:
Price per kilogram of fiber and how much it is necessary for the production of fiber-reinforced concrete m³
Buy microfiber concrete can be in packaged form in bags. If paper bags, they can be, without opening, immediately placed in a concrete mixing machine. Paper solution during mixing.
Consumption of fiber per 1 m³ of concrete - 20-40 kg. Composition and Mixing ratio fiber-reinforced concrete depend on the type of filler and the required strength.
How much is the fiber:
| View | The price per kilogram, rubles (as of September 2018) |
 | 118 |
 | 135 |
 | 180 |
 | 85 |
fibrous concrete
If for you it is important that the concrete structure has served as long as possible, and not afraid of fire, water and earthquakes - use fiber concrete. This new technology has already proved its effectiveness. If you have construction experience with the use of this composite material - share them in the comments!