Textolite reinforcement. Composite fiberglass reinforcement

Fiberglass reinforcement is a building material that is made from glass roving, connected using an epoxy compound based on thermoactive resins. The main feature is lightness; the mass per unit volume is only 2g/mm³. Working with fiberglass reinforcement is more convenient and economically feasible than working with metal reinforcement. Essentially required less costs for logistics and directly during reinforcement.

In addition, due to the fact that fiberglass does not react to aggressive environments, the reinforcement protects concrete from premature destruction, thereby increasing the service life of the object. Fiberglass reinforcement reacts to temperature changes similarly to concrete, which also has a good effect on the strength of the structure.

The strength of fiberglass compared to metal is 2.5 times higher. At the same time, the thermal conductivity index is 100 times lower than the thermal conductivity index of steel. Therefore, a structure that is reinforced with fiberglass does not freeze (does not form “cold bridges”) and a building built using fiberglass will be warmer than a building based on metal reinforcement. This allows you to reduce heating costs, and therefore the material is actively used in the construction of modern energy efficient buildings.

Another undeniable advantage that may be of interest to builders is the fact that fiberglass is a surprisingly durable material, which does not require additional repair work for 100 years after installation. This is what fiberglass reinforcement for foundations is famous for.

Fiberglass reinforcement has found its application in many areas of industry, construction, utilities:

• in construction it is used in the construction of civil and industrial construction as a basis for foundations, floors, beams, as well as for the construction of earthquake-resistant belts;
• In the construction and repair of roads, reinforcement is used in the construction of embankments, road surfaces, in the construction of bridges and highway barriers. It is resistant to reagents applied to road surfaces(for example, anti-icing reagents), therefore it can be used both in Moscow and in colder regions.

Fiberglass reinforcement will be an ideal basis for concrete and brick structures. It is used in the creation of supports for power lines and lighting, in the construction of road, sidewalk and fence slabs, as well as in the installation of sleepers on railway tracks. Reinforcement for floors, where a mesh of reinforcement is used, even together with metal, has become widely used.

Fiberglass is applicable in such building structures How monolithic foundation and foam concrete. It is also actively used in the creation of structures that must have increased resistance to chemicals, for example:

• during the construction of storage facilities for chemical waste and components;
• when installing sewerage systems, water pipelines, land reclamation systems;
• during the construction of port facilities and during the strengthening of coastlines.

Despite the uniqueness of the product, the price of fiberglass reinforcement in Moscow, which is indicated on our website, is available material both for construction organizations and individuals. Its cost is 40-50% lower than the cost of steel reinforcement, which allows you to significantly reduce costs and at the same time improve the quality of constructed objects. In general, composite reinforcement can be called one of the most reliable and efficient building materials of our time.

This reinforcement is made from straight strands of glass or basalt fibers (ASP and ABP, respectively), which are collected into a bundle, impregnated with a thermosetting polymer binder, molded, heated (polymerized) and cooled. The result is a monolithic rod of high strength, which, according to test results, is 3 times higher than the tensile strength of steel, and the weight, in an equal strength ratio, is 9 times less.

Standardly manufactured in the form of rods of any length, at the request of the customer. With a diameter of up to 8 mm inclusive, it can be manufactured in the form of coils (coils) containing 100 meters of reinforcement. dimensions coils: height – up to 8 cm, diameter – up to 1 meter.

release form

With a diameter of 10 mm and 12 mm, it can be manufactured in the form of coils (coil fittings) having a length of 50 meters. Overall dimensions of the coil: height – up to 5 cm, diameter – up to 1.5 meters.

By agreement with the customer, it is possible to produce rods and coils of any length.
Can be manufactured with a smooth, construction, periodic profile:

• ASP-ABP of periodic profile, used instead of steel reinforcement class A-I II (A-400);
• ASP-ABP with a smooth profile is used instead of steel reinforcement of class A-I (A-240).

Fiberglass reinforcement is becoming more and more popular and its use is becoming more and more relevant every year, because it is a complete replacement for traditional steel rods of different grades. High strength indicators, optimal operational properties, small specific gravity And low price- these are the factors that determine the popularity of the use of reinforcing non-metallic elements in all areas of construction.

When fiberglass reinforcement was first developed (57 years ago), its cost was much higher than steel bars, so the composite material was not widely used. Today the situation has changed, the cost of reinforcing material has decreased, and its advantages are appreciated by construction companies engaged in the construction of facilities in regions with cold climates.

Now fiberglass reinforcement is produced both in the form of threaded rods and in coils. The cross-section of the rods ranges from 4 to 32 mm. Let's take a closer look at the areas in which this type of reinforcement is most often used.

Features and scope of application

Plastic fittings are a physical body that consists of the following elements:

• The main trunk is made of parallel fibers connected to each other using a polymer resin. This element provides the strength characteristics of the reinforcement.
• An outer layer of fibrous material that is wound in a spiral around the main stem of plastic reinforcement. Such winding can be sand sprayed or bidirectional winding.

If we talk about the use of fiberglass reinforcement in construction, today composite materials are widely used for:

• reinforcement of various reinforced concrete structures;
• repair of reinforced concrete and brick surfaces;
• installation of buildings made of lightweight concrete;
• layer-by-layer masonry of walls (flexible connection technology);
• reinforcement of tile, columnar and strip foundations;
• strengthening concrete screeds;
• drainage;
• creation road surfaces and fencing;
• design of seismically resistant reinforcing belts.

In addition, fiberglass reinforcement is used in many other industries, and its characteristics meet all construction requirements and standards, so products of this type are suitable for both private construction and mass production.

Manufacturing technology

Composite reinforcement can be manufactured using one of three technologies:

1. Winding. In this case, winding is performed on specialized equipment. Winding device moves along a rotating mandrel. After several approaches, a complete cylindrical surface is created, which is sent to the oven for heat treatment.
2. Reaching out. First, the fiberglass is unwound from the spools and soaked in resin. After this, the material passes through dies and excess scrap is removed from it. At the same time, the plastic reinforcement bars are given a cylindrical shape. After this, the winder manually applies a spiral strand to the workpiece, which is used to increase the adhesion of the material and the concrete solution. In the next step, the fiberglass reinforcement is sent to the oven, where the resin hardens. Once the rods are completely polymerized, they are passed through the broaching mechanism.
3. Handmade. This is the most expensive process for producing plastic fittings, so it is used only for small-scale production. In this case, first a special matrix is ​​prepared, onto which a gelcoat (protective decorative layer) is applied. After this, the fiberglass is cut, soaked in resin and hardeners and placed into a mold. Next, the product undergoes heat treatment and is cut.

The first method of producing plastic reinforcement is considered the cheapest, so products that have been wound are used most often.

In the manufacture of rods of this type, various types of fibers are used.

Types of composite reinforcement

Fiberglass reinforcement can be the most different types, the most famous of them are:

• ASP is a fiberglass reinforcement that is manufactured classical method winding fiberglass. The diameter of the fibers of the product ranges from 13 to 16 microns.
• ABP – basalt-plastic reinforcement. In this case, the main trunk of the product is made of basalt fibers with a diameter of 10 to 16 microns.
• AUP is a carbon fiber reinforcement that uses both fiberglass and thermoplastic. The diameter of the fibers used is up to 20 microns.

Most often, ASP and ABP are used in construction. Carbon fiber reinforcement has a reduced mechanical strength, so it is used very rarely. In addition, on sale you can find products from ASPET (a mixture of fiberglass and thermoplastics), ACC (combined reinforcement) and many other varieties.

In addition, fiberglass reinforcement is sold:

• piece rods;
• mesh;
• frames;
• ready-made structures.

In addition, products are classified based on the type of structures for which they are used:

• fittings for housing and communal services;
• installation;
• working;
• distribution

It is also worth paying attention to the properties and characteristics of composite reinforcement.

Technical properties, advantages and disadvantages of plastic reinforcement

When choosing plastic reinforcement to strengthen the foundation, it is worth considering the following characteristics of the products, which in most cases are much better than those of metal analogues:

• The maximum operating temperature is from 60 degrees.
• Tensile strength – no less than 800 MPa (for ASP reinforcement) and no less than 1400 MPa (for AUK type products). For metal, this figure barely reaches 370 MPa.
• Relative elongation – 2.2%.
• Since this material belongs to the first group in terms of chemical resistance, fiberglass reinforcement can be used in aggressive or alkaline environments.
• Density is 1.9 kg/m 3, so ASP weighs 4 times less than a steel frame.
• Easy to transport.
• Low thermal conductivity.
• Long service life(over 80 years).
• Corrosion resistance.

In addition, when using fiberglass reinforcement, you don’t have to be afraid that it will jam the signal cellular communication or a radiotelephone, since this material is a dielectric.

Fiberglass is also resistant to low temperatures, but at extremely high temperatures the material begins to melt. However, in this case you will have to heat the surface to at least 200 degrees.

Interesting! Builders never have a question about how to cut fiberglass reinforcement, since it lends itself well to processing with a regular grinder.

The most obvious disadvantage of composite reinforcement is its instability. If you want to prepare it separately from the formwork, it may “skew”, so it is better to install the reinforced belt directly into the formwork.

If we talk about cost, then basalt-plastic reinforcement will cost about 6 rubles per linear meter, and fiberglass - from 9 rubles. If we compare it with steel rods, costing from 21 rubles per meter, it becomes obvious that today fiberglass rods not only do not cost money, but also cost almost half as much as metal rods.

However, you should not rejoice ahead of time, because there are many unscrupulous manufacturers on the market who offer low-quality products to customers.

What to look for when purchasing fiberglass reinforcement

To distinguish a low-quality product, pay attention to the following nuances:

• Composite reinforcement must be manufactured in accordance with the technological process. If the product has an uneven color with sharp transitions, then such rods are not suitable for construction.
• If the rods Brown, this indicates that at the final stage of manufacturing, the rods did not undergo the necessary heat treatment, or temperature regime was not followed correctly. Such products must be rejected in production.
• If you notice that the rods have a greenish tint, then such products are also not worth buying; they will have a very low modulus of elasticity for fracture. This occurs due to the fiberglass processing temperature being too low.

Color is the main indicator of the quality of the reinforcement, so make sure that the shade of the rods does not differ.

It is also necessary to select the correct fasteners for the fiberglass armored belt. Plastic holders are best suited for this purpose:

• Horizontal (for concrete slabs and floors) allow you to create a layer 25-50 mm high.
• Vertical (for wall surfaces) – layer thickness 15-45 cm.

In construction, as in other industries, they are increasingly resorting to the use of goods and services in the production of latest technologies And innovative approaches. Fiberglass reinforcement is an example of this alternative solution. It quickly replaced traditional metal parts, overtaking them in economic and technical parameters. From this article you will learn what fiberglass reinforcement is. The characteristics of this material will be presented in comparison with others.

Fiberglass reinforcement - what is it?

The reinforcing agent, or non-metallic fiberglass reinforcement, is a kind of rod with a ribbed surface made of glass fibers. Its profile is spiral-shaped, and its diameter varies from 4 to 18 mm. The length of the fittings can reach up to 12 meters. Sometimes it is found in the form of twisted bays; the diameter of such building material is 10 mm.

Abroad, fiberglass reinforcement, the use of which is as widespread as in our country, is called polymer equipment. It is reinforced with continuous fiber. In Russia you can often find the abbreviation AKS.

What is fiberglass reinforcement made of?

The physical body of the AKC consists of several parts:

1. Main trunk. It is made of parallel fibers that are connected with a polymer resin. The main trunk ensures the strength of the reinforcement.

2. Outer layer - is a fibrous body. It is wound in a spiral around the AKS barrel. It is found in the form of sand spraying or bidirectional winding.

There are various variations of fiberglass, it all depends on the imagination of the manufacturer and the feasibility of the know-how. On sale you can find fittings, the main trunk of which is made in the form of a carbon fiber pigtail.

Basic properties

To determine the properties of fiberglass, a lot of research and testing has been carried out. The results obtained characterized AKS as high-strength and durable equipment for construction, which has a number of advantages over other materials:

• light weight (fiberglass is 9 times lighter than metal reinforcement);
• resistance to corrosion in acidic and aggressive chloride environments (10 times higher than the properties of steel reinforcement);
• low thermal conductivity;
• efficiency (it is more profitable to transport it, and replacement is carried out less frequently);
• magnetoinertness;
• radio transparency;
• the reinforcement is a dielectric.

Fiberglass reinforcement: disadvantages

In addition to the undeniable advantages of AKS, thanks to which it has gained great popularity among construction companies and ordinary people, it has its drawbacks. Of course, it is very difficult to call them critical. However, it is worth keeping in mind the negative characteristics of the material, which may affect the construction process.

So, the disadvantages:

• short ;
• insufficient heat resistance;
• others.

Due to its low elasticity, the AKS is easy to bend. For the manufacture of foundations and paths, this is not a serious disadvantage. But in the case of the production of floors, additional calculations need to be made, taking into account this feature of the reinforcement.

Insufficient heat resistance is a more serious drawback of AKS. The fact that fiberglass itself is heat resistant does not mean anything. The plastic connecting link does not withstand high temperatures, but the reinforcement belongs to the group of self-extinguishing materials. This property is valid up to a temperature of 2000 degrees Celsius, after which AKS loses its strength. Therefore, the use of fiberglass with concrete is prohibited. Such reinforcement can be used only in those areas of construction where temperature changes are completely excluded. However, these requirements are almost always met in ordinary residential and some industrial buildings.

Fiberglass reinforcement, the disadvantages of which were listed above, has a number of other negative aspects. Over time, its strength is destroyed, and under the influence of alkaline compounds, the reaction rate increases several times. But modern technologies allow us to cope with this disadvantage. Rare earth metals are added to AKS, which make fiberglass less sensitive.

Some experts note the fact that such fittings do not tolerate welding. Therefore, many people prefer to “knit” fiberglass lashes.

Fiberglass production

We very often use fiberglass reinforcement at home, for example, in pouring foundations, etc. AKS production does not have to be in-line. Many auto repair shops involved in tuning cars produce this material in various configurations. - a common thing for services: they can make a new bumper and other parts out of it. But in in this case we're talking about about small-scale production. Only large industrial enterprises put AKS on stream.

There are several basic manufacturing methods:

• stretching;
• winding;
• manual method.

The first method is used for the manufacture of various profiles. Glass fibers are unwound on a continuous flow line. Most often, parallel bundles of material are unrolled from the reels and do not twist together. Experts call this production element roving. Before the bobbins are put into operation, the glass fiber is lubricated with a resin containing substances for its polymerization when high temperatures. Gradually the material will harden, and this effect is achieved due to the chemical reaction. Then the fiberglass passes through filters, which free the material from excess resin, and the AKS takes on its usual cylindrical shape. While the reinforcement has not hardened, a special strand is wound around it in a spiral. It is this that provides strength upon contact with concrete. Due to this property, fiberglass reinforcement is increasingly used for foundations. The reviews left by builders are often positive.

After all the manipulations, the AKS passes through the oven, where it hardens at high temperatures. Next, the finished reinforcement is cut into pieces of the required length (they are called lashes). Sometimes AKS is wound on bobbins, but this is only possible if it has a small diameter. Thick lashes are simply impossible to twist. Such fiberglass reinforcement, the use of which is very widespread, is produced in large quantities when it comes to large-scale production.

They are most often produced using the winding method. They are made according to the same principle as whips. Fiberglass impregnated with resin is wound onto a special machine. The winding device, due to its rotation, makes it possible to obtain a cylindrical surface. The fiberglass is then passed through a high-temperature furnace and cut into pipes of specific sizes.

The manual method is most often used in small-scale production. Fiberglass reinforcement, the disadvantages of which do not greatly affect the final result, allows you to obtain a durable car body, bumper, etc. Craftsmen create a special matrix with a pre-applied decorative and protective layer. Usually a sprayer is used for this, which allows you to achieve a uniform effect. After this, glass material is placed on the matrix, which is cut in advance according to the right sizes. Fiberglass or glass mat is impregnated with a mixture of polymer resin. It is best to use a brush. Using a roller, the remaining air is squeezed out of the material so that there are no voids inside the fiberglass. When the fabric has hardened, it is cut and given the required form, drill holes in it, etc. After this, the matrix can be reused.

Characteristics

Fiberglass reinforcement is characterized by the following parameters:

• winding pitch;
• internal and external diameter.

Each profile number corresponds to its own indicator value. The only parameter that remains unchanged is the winding pitch. It is equal to 15 mm.

According to the specifications, fiberglass reinforcement, the characteristics of which vary depending on the profile, is produced under the following numbers: 4, 5, 5.5, 6, 7, 8, 10, 12, 14, 16 and 18. These values ​​​​correspond to the outer diameter. The weight of the profiles varies from 0.02 to 0.42 kg/1 running meter.

Kinds

Construction fittings have many varieties. There are classifications that divide it into:

• piece;
• mesh;
• frames;
• designs.

The fittings are also divided into groups:

• working;
• distribution;
• installation;
• reinforcement used in reinforced concrete structures.

In addition, rods are divided into longitudinal and transverse, smooth and round, fiberglass and composite, etc.

Scope of application of composite reinforcement

The scope of application of the material we are considering is quite wide. Very often, composite reinforcement (fiberglass) is used for foundations, namely for reinforcing elastic foundations. In this case we are talking about production road closures and slabs. Reinforcement with fiberglass reinforcement is used for the production of conventional concrete structures, drainage pipes, dowels, etc. With its help, they improve the characteristics of walls, make flexible connections between brickwork. AKS is used for reinforcing road surfaces, embankments for weak foundations, monolithic concrete etc.

Transportation

Fiberglass reinforcement is produced in the form of coils that can be rolled up. This became possible after manufacturers removed self-tightening ties. The AKS coils can be easily unrolled, after which the fiberglass straightens and becomes suitable for work.

The material is packaged and transported horizontally. The main thing during transportation is to follow the basic rules for transporting goods.

Comparison of fiberglass reinforcement with steel

The main competitor of AKS is steel reinforcement. Their characteristics are largely similar, but in some respects fiberglass is clearly superior to the usual type of metal equipment.

Let's compare fiberglass with steel according to certain parameters:

1. Deformability. - elastic-plastic, AKS - ideally elastic.

2. Tensile strength: for steel - 390 MPa, for fiberglass - 1300 MPa.

3. Thermal conductivity coefficient. In the first case it is equal to 46 W/mOS, in the second - 0.35.

4. Density. Steel reinforcement has a value of 7850 kg/m 3, AKS - 1900 kg/m 3.

5. Thermal conductivity. Fiberglass is not thermally conductive, unlike steel.

6. Corrosion resistance. AKS is a stainless metal; steel corrodes relatively quickly.

7. Ability to conduct electricity. The dielectric is fiberglass reinforcement. The disadvantages of steel rods are that they are 100% current conductors.

Fiberglass or composite reinforcement is an alternative to steel products and is used to strengthen concrete in cases where its physical and chemical properties special requirements apply. Fiberglass does not deteriorate from moisture; its weight is 9 times less than that of steel of the same strength. Thermal conductivity indicators help reduce heat loss, and temperature Range ranges from -70 to 120 degrees. This material is used to reinforce concrete tanks at chemical plants, bridge supports and foundations. It is suitable for bonding multi-layer masonry walls and strengthening floors and screeds. Fiberglass is used in road construction for the construction of embankments and coverings.

Manufacturing technology

The main components of fiberglass rods are fiberglass and epoxy resin. First, the threads are impregnated with an adhesive, and then undergo a polymerization process. To do this, they are pulled through dies required diameter. At the final stage, a relief is applied to the smooth surface by rolling between rollers that have appropriate corrugation. In this way, light yellow colored rods are obtained that have optimal adhesion to concrete. The products have a diameter from 4 mm to 2 cm. In addition to fiberglass, basalt, carbon and aramid fibers are used in production. In this case, the products differ in color and may have longitudinal ribbing. To obtain structures from reinforcement, fiberglass is bonded using plastic elements.

Advantages and disadvantages of fiberglass products

Fiberglass products are characterized by increased tensile strength and are three times superior to steel reinforcement in this indicator. The density of fiberglass is much less than that of metal, and accordingly the weight is also much lighter, which makes it possible to lighten the concrete structure. A significant advantage is that plastic does not rust, even if it comes into contact with water, including sea ​​water. The material does not react to the effects of alkalis, acids and other active chemicals. It does not collapse in the cold and can withstand an unlimited number of freezing/thawing cycles. Fiberglass has low thermal conductivity, which helps improve this characteristic of concrete products with composite reinforcement. In addition, composites and concrete have approximately the same coefficient thermal expansion, therefore such structures are not subject to cracking. The fittings are dielectric and do not interfere with radio waves. It can be produced in any measured length. Thanks to the special properties epoxy resin long products can be wound into coils, and then restored to their original straight state, while maintaining their integrity and all their strength characteristics.

Fiberglass is significantly inferior to steel in elasticity, that is, it bends quite easily. For this reason, its use in floors must be accompanied by careful calculations. The material is fireproof, but at a temperature of about 600 degrees it softens and loses its properties. mechanical properties. On hazardous industries it is necessary to ensure thermal protection of structures with such reinforcement. The strength of composite joints when creating a lattice leaves much to be desired. Alternatively, steel rods are attached to the ends of the fiberglass and welded. When manufacturing structures of a special shape, it is necessary to order reinforcement with a certain bend, since it will not be possible to give it the required appearance on site.

Fiberglass reinforcement is modern development, which makes foundation and concrete work much easier. The method is new, so when choosing, it is important to know its characteristics, advantages and disadvantages in comparison with metal fittings.

AKS - what is it, its structure and appearance

Composite reinforcement is a round rod with knurled stiffening ribs. Made from fiberglass. Available in various sections. Its diameter, depending on the required strength of the products, can vary from 4 mm to 18 mm. Workpieces can be cut into lengths up to 12 m.

For ease of transportation, twisting of the reinforcement is used if its cross-section is up to 10 mm in diameter. Additional strength is achieved by using continuous fiberglass fiber production. This method foreign manufacturers called polymer equipment.

In our documents, the fiberglass reinforcing part is designated by the abbreviation AKS. Fiberglass reinforcement is made of 2 main parts:

• the main part is the central barrel. It is made of parallel fiberglass threads. A polymer resin is used to connect them. This device gives the product additional strength;
• external coils or sprinkling for better joining with concrete. They are applied in the form of several spirals along the entire length of the main trunk. Two methods of manufacturing coils are used - powder coating and bidirectional winding of fins. Composite reinforcement is produced in various types central rod. A pigtail made of carbon fiber is one of the types of this part.

Physical properties and materials used in the production of reinforcing products

The main characteristics were obtained after a number of scientific research and implementation the latest developments. Some properties allow it to be used for reinforcement in residential and industrial construction:

• light weight of products - steel reinforcement is an order of magnitude heavier (9 times);
• not subject to destruction from corrosion, exposure to acids, alkalis. According to this indicator, metal fittings are inferior by 10 points;
• low level of thermal conductivity. When arranging foundations and floor slabs, the possibility of thermal insulation failure due to cold bridges is reduced to 0.
• light and flexible– this quality simplifies its delivery and work;
• does not conduct electricity, is not affected by stray currents;
• thanks to plasticity takes any shape, no welding or cutting machines required.

Thanks to these characteristics, reinforcing the foundation with fiberglass reinforcement becomes justified both in production and economic terms. Much in this matter is decided by the material used for the production of ASP. The industry produces composite non-metallic reinforcement from several types of modern plastics. They have a base made of the following materials:

1. Fiberglass.
2. Carbon fiber.
3. Basalt-plastic.
4. Made from aramid.
5. Material created on the basis of glass-reinforced polyethylene terephthalate.

The price of some materials does not allow their use in mass quantities. For this reason, 2 types of materials are most popular. These are fiberglass and basalt plastic products. The main trunk is woven from many strands of material. They are connected using thermoactive synthetic resins.

To securely connect the rod, either sand coating is applied, or the trunk is wrapped around several turns running in a spiral. When using fiberglass reinforcement, one should take into account its property of slight stretching in a concrete product. In this case, there will be very little contact with the concrete and separation of the coils or abrasive coating will occur.

Products made of basalt plastic do not have a reliable connection with concrete. The best fixation is provided by coils made of carbon fiber, applied to the fiberglass main barrel. In this case, the load is evenly distributed over the entire part and the rod is normally fixed to the concrete mass.

Advantages and disadvantages of use

Reviews from builders allow us to recognize the following main advantages:

• light weight of products It not only makes the work of workers easier, but also makes the structures quite light. Therefore it is used for cellular concrete and other materials that reduce the weight of the structure while maintaining a high level of reliability and strength;
• metal, capable pass cold through cold bridges. The use of fiberglass reinforcement eliminates this possibility; this advantage is especially important in monolithic construction of buildings;
• consumption decreases material when packaging it in coils. The lashes are produced in lengths of 12 meters, which allows for more economical cutting. This point is especially important in private construction, when every ruble spent is scrupulously calculated;
• increases economic component, the possibility of tying without overlaps and using welding work;
• capable of serving for a long time and not losing its properties, but metal, laid in concrete slab also does not decompose;
• dielectric qualities They provide a guarantee of safe living in the building, but this dignity is debatable. Concrete itself is a dielectric;
• high level resistance to exposure to chemicals is important when performing foundation work when low temperatures. At this time, various additives are added to the concrete;
• Does not interfere with the passage of radio waves. This quality is especially important in monolithic construction; metal reinforcement prevents normal operation mobile communications and the passage of radio signals. The use of composite reinforcement can reduce the level of radio interference in the building.

These products also have disadvantages. A specialist using this material can easily name them:

• Reinforcing fiberglass(asp) exceeds the cost of steel reinforcement. But this disadvantage is easily offset by the possibility of using thinner reinforcement for a similar type of work;
• subject to deformation and destruction at high temperatures, but the likelihood of such an impact inside concrete is unrealistic;
• if used fiberglass reinforcement for the foundation with many turns, it is not possible to bend the parts for bending, but the problem is easily solved. It is enough to take a piece of steel bar, bend it under the right angle and tie with the main lash;
• one of the main disadvantages are low elasticity when the rod breaks. In this case, fiberglass reinforcement is inferior to steel, but it works better in tension. Due to its low fracture resistance, its use in capital construction somewhat limited;
• using you need to be extremely careful when using the foundation and pouring concrete from a mixer. Glass reinforcement cannot be laid in a rigid frame and when high pressure its integrity may be compromised. Composite mesh is The best decision question.

How to knit fiberglass reinforcement, but easier than metal. This does not require the use of different hooks. It is tied together with self-tightening plastic clamps. The operation is simple and requires a minimum of knowledge and tools.

Having considered the advantages and disadvantages, it is impossible to unequivocally answer the question which is better - lightweight plastic or hard steel. Only construction engineers can do this.

Scope of use and main types of reinforcing rods

These products are divided not only by appearance and the method of applying stiffness ribs. The main classification is the scope of use of rods:

• working;
• distribution;
• installation;
• produced for strengthening concrete products and structures.

Production has been established various products, depending on the assigned tasks for reinforcement in construction:

• separate, different in size, lashes;
• reinforcing mesh;
• Depending on the size, frames of various designs and dimensions are produced.

With a short period of use, composite reinforcement is used by various construction organizations. Used for making drainage wells, concrete walls, reinforcement is being made strip foundation fiberglass reinforcement. Widely used in road construction.

With its help, they reinforce the canvas, embankments, the bases of highways, and well strengthen the brick and block masonry of walls. Wide Application I received this material in private households and for arranging various greenhouses and greenhouses, for reinforcing a small foundation. Such structures are lightweight, easy to install and disassemble.

Adding to the popularity of the material is its ease of transportation and operation. For delivery you do not need to order a truck; delivery can be done in a passenger car.

Analysis and comparison of the main parameters of two types of reinforcing materials

You can get a complete and reasoned answer to the question of which fittings are better by carefully comparing the main parameters of plastic and metal fittings.

According to the resistance of plastic to corrosion and chemicals it is preferable to steel. This material is also better in terms of electrical safety and not blocking radio waves into the room. In general, no specialist can decide which material is preferable.

Only by completing other elements of the building and comparing it with the calculation of the structure using steel reinforcement can you get a reasoned answer. And only after this we reinforce the building parts and concrete products calmly and with confidence in the chosen material.

In conclusion, it should be noted.

Experience with this type of reinforcement appeared in construction several decades ago. Despite this, the method has significantly strengthened in the market for materials for performing concrete works. The scope of application of fiberglass reinforcement is quite wide.

These include the production of greenhouses on peasant farmsteads, low-rise construction, and use in the construction of highways. In each of these areas, the consumer receives a reliable and lightweight design with minimum costs strength and means.