FAQs

• high anti-corrosion and chemical resistance;
• dielectric;
• high strength;
• light weight;
• low thermal conductivity;

Reasons for the popularity of fiberglass reinforcement in reels:

• if necessary, you can cut the rods of the desired length, thereby reducing the amount of waste and unnecessary costs;
• rebar coils allow you to save money during transportation. They can even be transported by a passenger car;
• for large customers, bays with composite rebar are made of any length;
• absolute absence of rod deformation;
• self-straightening. Fiberglass rods have a shape memory effect, so that after removing the retainers, the rod straightens.

The standard length of rebar on the reel is 100 meters. Coils are provided with rods from 50 to 200 meters. The size of standard rod is 6 meters. If necessary, you can order rods of any length.

Plastic clamps or knitting wire are used to bind fiberglass rods. Technologically, both binding materials are used in the same way. However, it is necessary to take into account the tensile strength of the material used. Knitting wire has a higher strength coefficient than plastic clamps. At the same time, the low strength of the clamps is compensated by the thickness of the screed.

The process of binding composite rods is simple. Specialists often select the material for binding, based on work experience, personal, preferential preferences.

Quite often, customers, during the purchase of fittings, do care much about such a characteristic as corrosion resistance. Arguing this by the fact that an additional layer of concrete can be used during construction. In addition, this does not affect the strength characteristics of the reinforcing material in any way.

However, it should be kept in mind that concrete is already an aggressive environment. In addition, the steel rod during corrosion can increase by 1.3 times, thereby making it weaker, and sometimes leads to the rupture of concrete. Thus, the building is deprived of reinforcement, which is why it is necessary to replace individual rods or the entire reinforced structure, thereby increasing costs.

It follows from this that corrosion resistance is the main characteristic, thanks to which the time of use of the structure increases.

Comparing steel and composite reinforcement, it is worth focusing not on weight, but on volume, which is measured in a meter coefficient. After all, fiberglass rods are much lighter than metal ones, so when converted to meters per ton, composite rods will turn out to be 10 times more than steel ones. Therefore, the cost of non-metallic rods per meter is 15-30% lower than steel ones.

It is also worth considering that fiberglass rods are 2.5 times stronger to break than metal ones. Therefore, composite rods of a smaller diameter are used in construction than steel rods with the same breaking strength.

Steel reinforcement with incorrect calculations of the volume of reinforcement of the structure will stretch and may burst. Non-metallic rods do not stretch, but at the same time they hold the resistance to the last moment.

The coefficient of thermal expansion of concrete is 0.00001 °C, respectively, during an increase in temperature by 50 °C, the expansion of concrete can be 0.5 mm/m. The temperature index of expansion of steel reinforcement is 0.000012 °C, and fiberglass – 0.00001 °C. As you can see, fiberglass and concrete have almost the same temperature indicator data.

According to their technical characteristics, composite rods are ideal for reinforcing the foundation. Thanks to this, they have been actively used in many countries of Europe and America for more than a decade.

When measuring the external and internal diameter, there is no difference.

The external winding of the rods increases the adhesion to the concrete.

The number of turns that are located outside does not affect the quality of the coupling in any way. To increase the grip, it is necessary to change the design, as well as the shape of the rods that are used for reinforcement.

When comparing rebars of the same diameter, fiberglass is 4 times lighter than metal. 

However, using an equal-strength replacement, fiberglass rods are 10 times lighter than steel ones. In addition, composite rods have greater resistance to aggressive environments, and this allows you to make the protective concrete layer smaller. In some structures, the weight reduction can be 25%.

Reinforced structures with fiberglass can be separated by a heat insulator. Thus, composite rods cope with the inhibition of the process of transferring cold from the outer layer of concrete or brick to the inner layer. Compared with fiberglass, the metal has a high thermal conductivity, which is why the concrete structure freezes faster.

In addition, it should be kept in mind that one end of the metal structure may be in the cold, and this can lead to cracks in the entire structure.

Concrete, like brick, is only partially shielded, and with higher humidity this process has even lower indicators. At the same time, the metal frame is a good screen.

Composite rods are an excellent option for reinforcing concrete floors, as well as for building sidewalks at home.

The size of the diameter of fiberglass rods is set after the results of the design calculation. Also, the indicators of the load on the foundation are taken into account here.

For knitting fiberglass rods, wire or plastic clamps are used. Tools for cutting the frame are selected according to the diameter of the rod. For example, for rods with a diameter of up to 8 mm, wire cutters or bolt cutters are used, and for larger diameter fittings – a grinder or a hacksaw.

Fiberglass rods have an overlap connection with a distance of 100 mm of the diameter of the reinforcement used. The overlaps are fastened with clamps, and then the frame is filled with concrete.

According to statistics, the number of horizontal structures reinforced with fiberglass as a percentage of vertical structures is 54%.