Valve fixing: main function, types and advantages

Reinforced concrete slabs are used today in construction everywhere. Their strength is due to the presence of a frame, for the manufacture of which a special fixation of the reinforcement is used.

Purpose of the lock

This is a consumable material, which is a special stand used to create concrete structures. Made of high-strength plastic, it acts as a protective barrier when it is required to prevent the output of reinforcing bars on the surface. This can disrupt the integrity of the surface and increase the risk of corrosion from external factors. Therefore, under adverse environmental conditions, the protective layer should be thicker, more durable and uniform throughout the product surface. When manufacturing a concrete screed it is very important that the metal grid is located strictly in the center of the plate.

Provide these conditions and hold the frame, carrying out the role of the spacer, help fixators under the armature. They can have a different design, and accordingly, and scope.

Types of fasteners

In general, they are divided into vertical and horizontal. The first are a small plastic tube or a tripod with holes in the upper part, designed to fix the rods of the armature. Place each lock under the reinforcement bar approximately one meter apart.

The horizontal retainer in the form of profile rings is used when creating vertical concrete structures. The concrete layer should not cover the metal grill by less than 4 cm. The reinforcement bar prevents the clamping of the frame to the formwork, which ensures high quality of the reinforced concrete structure.

Advantages of fixatives

This material is considered consumable and remains inside the concrete product, which will serve for more than one decade, so one of the advantages of the fasteners is their resistance to temperature changes. They are not afraid of environmental influences, various chemicals, do not lend themselves to deformation, which allows them to be used in any conditions. Among other advantages, the environmental friendliness of the material from which the fixatives are made is of no small importance.

The retainer of the protective layer of the reinforcement provides the creation of a strong and safe construction, significantly accelerating the construction process. With it, you can easily fix the rods in the right position, without compromising on quality. This is a universal product, suitable for various fittings, available in the construction market.

Fixator "stool"

It is considered the most popular of all types of fixatives, being a fairly reliable component material. It is used mainly for horizontal reinforcement. Fixator armature "stool" is especially indispensable when creating non-standard designs. It is universal - with its help the reinforcement of the most various types is fastened, thus the thickness of a protective layer can vary.

The special structure of the fixer "stool" allows not only to connect a large amount of reinforcement, but also to provide high strength of the created structure. At the same time, the use of this printer gives an additional economy of finance.

Fixing armature "star"

This is not less demanded in the construction market lock of another type - "star", named so for its shape, reminiscent of this figure. Apply it in those cases where it is necessary to fix the reinforcement in a vertical surface. Such a clamp allows creating a protective layer 10-50 mm thick (in large hydraulic structures it can be up to 120 mm). The construction market offers today a large selection of these materials, different in size and price.

Triangle lock

The design features of the lock of this type allow it to be used to strengthen the formwork systems and to create a protective barrier in the horizontal planes. Due to its characteristics, the location of the holes and their size, it is suitable for creating protection from materials with different diameters, which makes it universal.

The "triangle" fixture also has a number of other advantages that guarantee the strength and safety of any connection. This type of components can be used to create any protective layers in a concrete structure. These fixatives are made of the same materials as other types, so they are not inferior to them in strength and resistance to aggressive environmental influences. Most often they find application in enterprises that produce various reinforced concrete products, but can also be used in other works.

Fixing technology

Qualitatively executed works on the creation of any reinforced concrete products guarantee their durability and safety. Correctly installed fixation of the armature plays in this matter not the last role. First of all, it is required to conduct a careful marking of the place where the reinforcing mesh will be located and the placement of the fixators determining the thickness of the protective layer. Depending on it, calculate a step that can be from 80 to 100 centimeters.

Clamps are installed in checkerboard order. Installing them on a vertical plane, it is necessary to make a strong attachment to the formwork or reinforcement by wire.

When double reinforcement is required, the locks are set perpendicular to the plane of the mesh or frame. The step is aged in this case a little more - from 1.5 to 2 meters.