How to knit reinforcement for the foundation? Knitting fittings for the foundation
The foundation is the main part of any home. From what will be the base, depends largely on its operational life, and hence, the comfortable living of its residents. You can build a solid and reliable house only if you know how to knit reinforcement when building the base of a building.
What is the metal frame for?
Everything is interconnected. The base serves as the basis and guarantor of the safety of the structure, and the frame of reinforcing rods is the main component of the fortress and longevity of the foundation. It binds with its elements the base of reinforced concrete.
The iron rods of the working reinforcement perform the function of resistance to loads that are directed to tension, and increase the forces of the compression zones. Mounting reinforcement fastens the working rods of the frame.
The main task of the reinforcement cage is to prevent cracking and deformation of the concrete under the weight of the structure and the effects of ground heaving forces, and this means preventing the destruction of the foundation and construction.From the above, it follows that the question of how to knit reinforcement for the foundation, is not at all idle.
What kind of reinforcement is and what it is made of
What is a reinforcing bar for the base? These are rods of metal whose length is 6 meters or more, with a cross section of 6 mm. The size of the cross-section of reinforcement bars determines its strength - the larger it is, the stronger the frame.
The rods can be smooth or have edges, edges, various notches. They reinforce the connection of the metal with the concrete solution. With a smooth rod, it is half that of a grooved one.
When erecting buildings that require a heavy-duty base, rigid frames made of channels or angles of metal are ideal.
So that the reinforcement bars do not change the dimensions of the mounting step, calculated according to the technology, they are fixed together.
The binding of the bars of the reinforcement is made by hand-knitting or by welding. The question of how to knit reinforcement for the foundation, is one of the foundations in the construction of the base of the building.
This method is basic for connecting reinforcement bars, although it has several serious drawbacks:
When exposed to high welding temperatures, the strength of the rebar is reduced.
When pouring a concrete solution and its compaction there is a risk of breaking the welded joints.
In the construction of large objects will need to hire the right number of welders with some experience.
Knitting reinforcement for the foundation is possible and manually. It is carried out with steel wire having a diameter of 0.8-1.2 mm.
The most affordable way. The wire, folded in half, at the point of intersection of the rods, tightens their connection using pliers. Then fix its ends.
Knitting with a screwdriver or crochet
There are two basic ways of mating: overlapping joints using one loop and a joint using two loops. In practice, all connections are knitted using one loop. The loop attracts with simplicity and reliability, as well as the opportunity to learn this method in a short period of time.
How to knit reinforcement with a special crochet is written below. The wire is folded in half, its loop is put on the hook, the points of contact of the rods are fixed by the ends, then they are laid on the hook. When it rotates, the wire is twisted.
The hook rotates manually.To speed up the work, it can be inserted into the screwdriver cartridge. When it is turned on, the hook begins to rotate and twist the wire.
Tying the reinforcement rods with clamps and brackets
The bars of the reinforcement can be tied with staples made of round wire. The work is done by hand, but this method has several advantages:
In comparison with manual viscous, the speed of work is increased by 3 times.
High stable connection density.
Work can be performed by any unprepared person after a brief study of the process.
Simple calculation of the desired material.
The assembly of reinforcement with plastic clamps has proven itself well. These methods are used in the construction of the grounds of cottages, country houses, baths. That's ready to answer dacha developers to the question of how to knit reinforcement for the foundation.
Strapping with knitting gun
On large construction sites, knitting guns are used to speed up and facilitate the work.
The gun is aimed and installed in the right place, the button is pressed, automatic binding of the reinforcement bars with the maximum density occurs.There are devices that operate on the battery, and there are mechanical. The wire in both is fed from the coil, which changes at its end.
The advantages of working with a gun:
Ease and convenience in work.
Connection takes 1-2 seconds.
There is no waste wire for knitting.
Facilitate the process.
There are certain disadvantages when working with a gun:
The total construction costs are increasing due to the high price of the pistol and consumables for it.
Requires a trained worker to work with a gun.
The impossibility of using the tool in inaccessible places of the frame.
How to apply different strapping methods
How to knit reinforcement so that the base frame is strong and reliable? If rods with a diameter of not more than 25 mm are used for the reinforcement of the foundation, they are fastened with wire, brackets or spot welding. Arc welding is used if the diameter of the rods exceeds 25 mm.
How to knit reinforcement strip foundation? Very simple. Where the reinforcement rods form an angle of 90 ° between themselves, they are wrapped in wire and twisted with the help of wire cutters.Where the rods are superimposed on each other, they are twisted with wire in three places.
The frame for the tape base is better to knit in place, as the wire may stretch under mechanical action. Connected must be at least 50% of the intersections of the reinforcing bars. Correctly performed works guarantee durability and durability of the tape base.
How to knit reinforcement for the slab so that it can withstand all the loads acting on it (and there are several of them, and they are directed along and across it)? Torsional loads may act on the slab. They put pressure on her in different directions.
In order to prevent a fracture of the rod or divergence of the connection, it is better not to use welding. Therefore, it is necessary to connect reinforcing rods using wire. The rods are tied with a double wire at the junction and tightened with pliers or a crochet hook.
How to knit reinforcement for the foundation, you already know. And which way is better to choose?
Boil or knit reinforcement?
Armature is a set of parts connected to each other. Together with concrete it is used in all reinforced concrete buildings.
Still, more often, reinforcement rods are knitted rather than boiled. Welding leads to a change in the composition of the steel, and this weakens the junction points of reinforcement rods. During the volumetric work of the joint by welding, the time for completing the task is extended, as compared with mechanical knitting.
Welding requires an experienced welder. A young worker who does not possess the necessary skills can only harm.
Mechanical binding is a simple method of connecting the reinforcement rods together. From the employee performing this task, does not require special skills. Both knitting and welding perform the same function, only the result is achieved in different ways.
The main thing is that after tying or welding the joints and pouring the concrete solution, the bars of the reinforcement should remain in the proper places. The foundation strength does not increase from their presence, it is ensured by the integrity of the concrete base, and here the reinforcement plays a significant role.
How to knit reinforcement for the foundation, so that it ensures the integrity and longevity of the base of the building, is written in this article. Which method to use, decides each developer independently.The main thing is to follow all the rules and recommendations and strictly implement them. The result will be a durable and reliable reinforced concrete base.