Concrete is an indispensable material in construction. Foundations, walls, bridges, etc. are made from it. It is distinguished by strength and durability, however, this composition has one rather significant drawback - it is not too tensile. To remedy this situation, use special metal rods, which are called building fittings. The rods are poured into concrete to obtain a structure that can withstand both compression and tension.
To date, a variety of types of building fittings are produced. It can be classified by the method of manufacture or use, or by the materials used in the production. Fittings, the thickness of which does not exceed 10 mm, are sold in coils. If its diameter in the profile is more than 10 mm, it is cut into bars 6–12 m long.
Reinforces of two types are produced: with a periodic profile (such a term is used by specialists) and smooth reinforcement. The types of this building material in the first case can be covered with either ribs or notches. Sickle, mixed and ring varieties are distinguished. Such bars adhere better to concrete, which ultimately allows for more durable structures.
Reinforcing bars (types of which can be designed for a variety of high-strength structures) are made of hot rolled steel by cutting. There is another way - wire, in which hot metal is drawn into the rod. In the manufacture of can be used as hardened steel, and simple.
In construction
, reinforcement of various types of
steel is also used
. Its types are intended for use in the construction of structures of different strengths and purposes. In order for the consumer to understand what kind of reinforcement is needed in one or another case, marking is used. For example, products are manufactured in
classes A240, A400, A800, etc.
There are welded and non-weldable fittings on sale, the types of which differ in that welding can be applied to the first option, and the second becomes brittle with this method of joining nets and frames, which inevitably affects the strength of the whole structure.
Therefore, non-weldable reinforcement is assembled by bonding individual rods using wire. Corrosion-resistant equipment is also distinguished from unstable equipment. In the first case, the products are marked with the letter “C”, in the second - “K”.
The purpose and types of fittings can be very different. However, one thing is clear - without its use, building a strong and durable structure will not work. A steel base is necessary in the construction of any building, even if it is a small private house.
In addition to construction, there is another type of reinforcement - shutoff. It is used mainly in pipelines to block the flow of liquids or steam, as well as to control them. Types of shutoff valves can be very different: cranes, latches, valves, locks, etc. Of course, without such fittings you cannot build a comfortable house either. In particular, without it it is impossible to build water supply and sewage systems.