How to cut the reinforcement for the foundation.

How to cut reinforcement without electricity

Yes, this is one of the most popular options, especially an electrician with a laser pointer. this tool can quickly cut a sheet without getting down from markings.

When you need to get a curly or straight section on one or more sheets of corrugated board up to 21 mm high. To cut a pack of sheets, this tool is not used. the jigsaw may fail.

An electric jigsaw is often used for cutting a profiled sheet because:

• Almost everyone has it, it does not need to be additionally purchased.
• It is easy for them to work, this does not require special skills.
• With the help of an electrician, you can cut corrugated board at any angle.

This tool is suitable only for a profiled sheet up to 21 mm high (not higher than the S-21). If you have chosen material with higher corrugations, it is better not to use an electrician: it will tear the metal. Also, he does not have enough blade length for cutting corrugated board with high waves. On the functionality of the tool, working with such a material will also not affect the best way. it may break.

When working with an electrician, there is a possibility of overheating of the metal. To avoid this, follow our tips:

• Control the power of the jigsaw. It is not necessary to turn on the tool at full power, otherwise you run the risk of overheating of the metal and burn the polymer and zinc coating.
• Periodically drip on the blade oil (any). This will help reduce friction, which means that the metal will heat less.

Attention: In the process of cutting a profiled sheet, a small metal shavings forms. It must be quickly removed with soft fabric (do not use an abrasive brush for this! You can damage the polymer coating)

Otherwise, the remaining metal pieces on the surface can begin to rust and spread corrosion around.

Sable saw electric

Demonstration of a saber saw during cutting foam blocks of a saw Electric produces a cut with flat canvases, outwardly similar to the canvas of the saber, and therefore received such a name. The amplitude of the canvas can be different, it all depends on the model. Differ from 3 to 5 cm. Electro-burning easily copes with gas, foam concrete blocks, quickly produces the cut. It is easy to use the saber model. The principle of operation is similar to the work of the chain saw.

Working with a saber electric saw, you can quickly and efficiently make a cut of aerated concrete blocks. Speed ​​in many models is regulated by an electronic block. Cooling occurs using available ventilation holes. The level of vibration is adjusted and low. Sable saw weighs about 4 kg. Replacement of paintings occurs quite simply.

How to bend and cut reinforcement

Wikihow works on the principle of wiki, which means that many of our articles are written by several authors. When creating this article on its editing and improvement, 10 people (a) worked, including anonymously.

Number of views of this article: 8044.

When creating a structural frame of concrete work, flexion and cutting of reinforcement (steel rods for strengthening concrete) are very often needed). This is an easy material in the work, which is often used in landscape design, art and other projects where easily bending metal is required. The usual reinforcement varies in the conditional diameter, which changes with a pitch of 1/8 inch (that is, the reinforcement “number 4” has a conditional diameter of 1/2 inch (15 mm)). Reinforcement up to number 4, as a rule, can be bend and cut manually. The reinforcement of larger diameter is usually not used except for obtaining technical or industrial concrete work and usually requires special equipment like hydraulic scissors and gypical machines.

In this article we will accept that 1/2 inch reinforcement is used (number 4), which is common and used in landscape design and concrete work of residential areas.

Choose the right protective equipment. The reinforcement is heavy, it can be acute and create sparks during cutting. When working with reinforcement, always wear goggles, long sleeves shirt, long trousers, gloves and strong boots.

Prepare the workplace. The reinforcement is sold in the form of long rods (usually 2.5–6 meters and up to 12 meters in length). Due to its length, tendencies covered with scale or rust and total weight, with reinforcement, it is usually best to work in a large open space with a small amount of interference. Cutting reinforcement often leads to the appearance of very hot sparks, so make sure that there are no fire.hazardous materials on the site. Rust and sparks can ruin clothes, so put on something durable and old.

Gently make measurements. Take into account the overall length, all overlaps (where you connect one core of the reinforcement with another) and, especially, bends may not be easy. You can find that after the first bends and cuts of the reinforcement, it turns out shorter or longer than you needed. As a rule, this is due to an unsuccessful attempt to take into account the length of the reinforcement at the place of bending. It may be difficult, but you will figure it out. The reinforcement is very easy to marry with a wax pencil (if you need waterproof marks) or chalk (useful for projects in which you need to delete the marks).

Cut the reinforcement. Cutting reinforcement can be easily performed using a hacksaw for metal. You can also use a saber’s saw, a portable strip saw or a grinding machine equipped with a blade suitable for cutting “soft steel” with a blade. The reinforcement tends to twist during cutting, therefore, as a rule, you need to step on it or hold it in another way in the process of cutting. Cut reinforcement is always hot and/or acute. Use gloves and be careful.

Conducting reinforcement with a conditional diameter of 1/2 inch (15 mm) and less. Now that you have a rod cut off in length, it’s time to bend it. Fast of reinforcement lies in the selection of the size of the shoulder of the lever. Put the reinforcement on the ground. Using a long metal pipe with a fairly large inner diameter, place the reinforcement rod in the pipe, stopping it about 15 cm from the place where you wanted to start bending. Put your leg at a distance of 15-30 cm from the place where you would like to get a bend. With your foot firmly stepped, raise the reinforcement from the ground until it bends at the angle you need. Often, if you are trying to get an accurate bend, you need to bend the rod a little in several approaches.

Other methods and tools. In most household stores, you can rent a simple hand.to.beal machine for reinforcement. If you need to make many cuts, the most effective solution will be the rental of a cut.out disc sawdown for metal.

Reinforcement cutting tool

What is the best to cut reinforcement, depends on its diameter and class. The smaller they are, the easier it is to cope with the metal rod.

Therefore, for cutting the A-1 reinforcement (up to 10-12 mm in diameter), ordinary bolt cutters are also suitable (they are also called reinforcing scissors or reinforcing nippers). With their help, you can easily cope with a small number of rods, since the effort you do increases due to the work of the double lever system in them.

For cutting thicker and durable reinforcement, “corner grinding” is more suitable. Its main advantages (low weight and power) allow you to work quickly, and since you can cut the reinforcement with its help everywhere there is a place and there is no control of combustible materials, it is it that masters usually prefer it.

Another option is a special guillotine for reinforcement (for example, Edma Rodcut 0659). Such a device greatly facilitates the process of cutting the reinforcement into segments of a certain length. True, the guillotine costs quite expensive, so specialized companies usually purchase it, and not lovers to build something with their own hands.

You can also use a special machine for cutting reinforcement, which greatly facilitates and simplifies the whole process.

How to cut reinforcement correctly and safely

If you decide to cut the reinforcement with a “corner grinder”, do not forget to take care of your safety:

• Firstly, remember about special glasses, comfortable working gloves and appropriate clothes;
• Secondly, the reinforcement that you are going to cut must be lifted above the surface (above the ground) so that the “corner grinding of the“ corner grinder ”does not catch on it;
• Thirdly, the cut reinforcement must be fixed (or simply held so that it does not move until you cut it-for this you need an assistant).

Reinforcement of the strip foundation. technology for conducting work

The number of reinforcing elements must be calculated based on the size of the base. For foundations, the width of which is 40 cm is enough 4 longitudinal rod- two from above and below. To install a number of a frame in a tape base of 6×6 m in a size, on average, 24 m reinforcement. If you lay 4 rods, you need 96 m of longitudinal rods.

For pepper and vertical reinforcement of the foundation, the width of which is 0.3 m and a height of 1.9 m for each fastener at an indent of 5 cm from the surface according to the concrete calculator (30-5-5) x2 (190-5-5) x2 = x2 = x2 = 400 cm or 4 m of fittings of smooth shape.

If the installation step of the clamps is 0.5 m, the number of connections will be: 24/0.5 1 = 49 pcs. So, based on calculations, you will need 4×49 = 196 m of transverse and vertical rods.

The minimum area of ​​reinforcement of the foundation is regulated by regulatory documents, and the strength of the foundation depends on this

To do this, you should take a square or rectangle as a basis.

Before installing the frame on the bottom of the trench, you need to put a sand cushion with a depth of 1 m.

• Bricks are laid on the bottom of the trench, the height of which is 5 cm (in order to create a gap between the lower part of the base and the frame);
• To install the rack rods, it is necessary to make a sample in advance, according to which the rods will be cut;
• Long.shaped rods are laid on bricks;
• With a step of 50 cm pitch, the longitudinal rods with a knitting wire tie horizontal jumpers a little less than the thickness of the base (approximately 5 cm on each side);
• The rods are attached to the corners of the formed cells vertically a length of 10 cm less than the height of the base;
• Upper longitudinal rods are mounted to vertical reinforcement;
• The upper transverse rods are tied to the resulting corners.

When reinforcing a strip foundation, it is necessary to adhere to the requirements of SNiP 52-01-2003

The main task of the foundation is to transfer the load of the building (structure) to the ground. Obviously, concrete in the foundation will experience an internal compression force. walls press on top, below soil. Concrete, unlike reinforcement, works very well for compression. So why reinforcement is used in the strip foundation?

During the operation of the building, sediment inevitably occurs. The soil under the sole foundation in conditions of pressure on top is compacted. The higher the pressure, the stronger the compaction occurs. In the event that it is strictly evenly along the entire length of the strip foundation, dangerous internal efforts in the foundation do not occur.

In practice, this situation is extremely rare. Non.symmetry of forms and loads determines uneven pressure. In order to reduce the uneven precipitation within the same building, foundation tapes of different widths are usually used. load. more width. But even in this case, it is impossible to completely equalize the values ​​of pressure under the sole of the foundation.

In addition, one cannot vouch for the absolute ideality of the foundation of the foundation (soil). Various inclusions in the ground thickness also form uneven precipitation. Uneven humidity has a negative effect. Leakage of water.wilting communications, the absence of blind area on the one hand, the probability of the appearance of various outbuildings (additional load gives additional sediment). all this forms the uneven precipitation.

Relatively speaking, the surface of the soil under the foundation tape seeks to become a “curve” in a vertical direction. The most dangerous areas are corners, as well as places with significant load changes (for example, with a variable number of storeys, the presence of columns, additionally loaded pylons, etc.D.).

We offer to familiarize yourself: how to insulate the foundation of the bath from the inside

According to the material, the reinforcement is divided into two types. steel and composite. The latter appeared relatively recently and, having a number of shortcomings (as well as advantages), today is rarely used in private construction.

Steel reinforcement is divided into rod and wire. For reinforcing the strip foundation, the core reinforcement of the periodic profile is used as the main (working, also speak “longitudinal”) and smooth in the form of additional (transverse).

Working reinforcement must have good concrete adhesion to ensure joint work. Such fittings are made with a periodic profile, dividing it into classes in strength. According to GOST, the USSR for private construction applies the A-III class reinforcement or its analogue for modern GOST-A400.

In view of a certain unpredictability of the degree of precipitation, the exact calculation of the required diameter for the strip foundation is hardly possible. Therefore, over the decades of the construction and operation of buildings, constructive requirements for reinforcing the strip foundation have been developed.

• The diameter of the working rods is taken at least 12mm.
• Workers (longitudinal) rods are combined into spatial frames through transverse reinforcement by welding or knitting.
• The amount of longitudinal rods in the frame is at least four (usually six).
• The step of transverse reinforcement is assigned within 200-600mm. The diameter of the rods is 6-8mm.
• The thickness of the strip foundation is usually taken equal to 300mm.
• Vulnerable places in the corners and T-shaped intersections are strengthened by reinforcing vuts or paws. Their diameter is taken equal to the diameter of the longitudinal rods.

How to cut reinforcement correctly and safely

If you decide to cut the reinforcement with a “corner grinder”, do not forget to take care of your safety:

• Firstly, remember about special glasses, comfortable working gloves and appropriate clothes;
• Secondly, the reinforcement that you are going to cut must be lifted above the surface (above the ground) so that the “corner grinding of the“ corner grinder ”does not catch on it;
• Thirdly, the cut reinforcement must be fixed (or simply held so that it does not move until you cut it-for this you need an assistant).

Calculation of reinforcement for the strip foundation

Before buying, you need to calculate the required amount of material:

• Calculate the length of all walls. For example, take the foundation 12 m long, 6 m wide and a partition. 6 m. The perimeter will be (126) x26 = 42 m.
• Since mainly a 4-core scheme is used, we multiply the result by 4. We get 168 m.
• We will have to take into account the launch of rods when joining, so we will add about 10. 15%to this result, we get 168 17 = 185 m. We need so many meters of steel rods to lay them horizontally.
• The next stage is the calculation of the number of transverse and vertical rods. Foundation width. 35 cm, height. 90 cm. Calculate the perimeter of the resulting “rectangle”. We get 35x290x2 = 250 cm, that is, we will need 2.5 meters of reinforcement every 50 cm.
• Divide the length of the walls by 50 cm (recommended step) and we get the number of such rectangles: 12 m: 50 cm, we get 24 rectangles, add two additional in the corners. total 26 pcs.
• Similarly, we count the number on the wall of 6 m, we get approximately 10 pcs.
• We find the total amount. 26×2 10×3 = 82 pcs.
• Since two and a half meters go to one rectangle, we think how much reinforcement we need: 82 pcs. x 2.5 m = 205 meters.

When calculating, take into account the fact that sometimes vertical reinforcement is slightly deepened into the ground for stability, so the height in this case should be increased.

In order not to get confused in a large amount of data, draw a diagram, outlining the place where all joints will be located, horizontal and vertical rods.

Diameter

All reinforcement is divided into several types by which diameter it has. A small diameter of 6-8 mm is characteristic of smooth transverse rods, it is also suitable for vertical reinforcement.

A diameter of 10 mm and above is suitable for longitudinal reinforcement.

Knitting

As already mentioned, the binding of elements can be made by aluminum or steel wire manually using pliers.

In addition, you can apply self.tightening clamps, they do not require special tools.

A special pistol is greatly facilitated by a viscous work, the wire is supplied from a special coil and the knot is automatically tied in 5 seconds. Minus one. the high cost of the tool.

Laying

For convenience, the frame for the reinforcement is first collected outside the trench. It is more convenient to collect in separate sections that are connected after installation.

Then the parts of the frame are placed in a moat for the foundation for bricks or special plastic cubes that are used as an stop, they also provide a technological clearance from below.

The reinforcement should not come into contact with the formwork and soil so that there is no corrosion.

Safe work with fiberglass reinforcement: how to cut, tie, unwind and provide protection

Fiberglass reinforcement. a worthy alternative to metal rods. It is easy to work, reliable and durable. When starting to work with the material, it is useful for any master to find out how to cut, tie and unwind reinforcement.

How to cut fiberglass reinforcement

Unsable production is one of the main advantages of composite reinforcement. Unlike metal, it can be easily cut into pieces of the desired length and use them without a residue.

• How to saw reinforcement:
• corner grinder. One disk is enough for cutting with a machine
• Kusachki if the reinforcement has a small diameter
• scabbard for cutting metal

How to connect composite reinforcement

Fiberglass reinforcement is associated not only with each other, but also with metal rods. How to do it? Most often for this purpose, knitting wire of millimeter thickness is used. With large volumes of work, it is convenient to bind the rods with wire with a special manual or electric tool. The knitting hook is used for medium volumes of work. If you need to tie a small number of rods, you can do without auxiliary devices and perform work manually.

To knit reinforcement, brackets and plastic clamps are also used. Note that the method of binding the rods is not of fundamental value. The main goal of the procedure is to fix the rods in the right position before pouring concrete. As soon as the concrete froze, the rods will no longer budge. However, wire or other binding material should be quite thick and durable. this will ensure the integrity of the frame when the concrete is submitted.

How to unwind fiberglass reinforcement

The reinforcement is supplied in bays and straight rods. both options are acceptable. The rods twisted into the bay are not subjected to deformation, as many consumers believe. The appearance of microcracks is possible only if the material is made without observing technologies. After unraveling it does not need to be straightened. This will happen naturally.

The reinforcement in the bay should be inserted very carefully, especially with a significant thickness of rods.

• How to do it:
• If you work alone. Disconnect one of the ends of the bay and put it with something quite heavy. The main thing is to fix one end of the rod. Then go back, gradually, slowly, unwinding the material
• If you work in pairs. The process will look approximately the same with the same exception: one of the ends of the reinforcement will hold the assistant

Gloves

Composite rods have a slight glass spraying, with contact with which irritation may appear on the skin. Therefore, before picking up a composite rod, put on gloves.

Protective mask

When sawing non.metallic rods, fine dust forms, which, when it enters the respiratory tract, can cause allergies or lead to diseases. The mask will protect you from such troubles.

Safe work with fiberglass reinforcement: how to cut, tie, unwind and provide protection

Fiberglass reinforcement. a worthy alternative to metal rods. It is easy to work, reliable and durable. When starting to work with the material, it is useful for any master to find out how to cut, tie and unwind reinforcement.

How to cut fiberglass reinforcement

Unsable production is one of the main advantages of composite reinforcement. Unlike metal, it can be easily cut into pieces of the desired length and use them without a residue.

• How to saw reinforcement:
• corner grinder. One disk is enough for cutting with a machine
• Kusachki if the reinforcement has a small diameter
• scabbard for cutting metal

How to connect composite reinforcement

Fiberglass reinforcement is associated not only with each other, but also with metal rods. How to do it? Most often for this purpose, knitting wire of millimeter thickness is used. With large volumes of work, it is convenient to bind the rods with wire with a special manual or electric tool. The knitting hook is used for medium volumes of work. If you need to tie a small number of rods, you can do without auxiliary devices and perform work manually.

To knit reinforcement, brackets and plastic clamps are also used. Note that the method of binding the rods is not of fundamental value. The main goal of the procedure is to fix the rods in the right position before pouring concrete. As soon as the concrete froze, the rods will no longer budge. However, wire or other binding material should be quite thick and durable. this will ensure the integrity of the frame when the concrete is submitted.

How to unwind fiberglass reinforcement

The reinforcement is supplied in bays and straight rods. both options are acceptable. The rods twisted into the bay are not subjected to deformation, as many consumers believe. The appearance of microcracks is possible only if the material is made without observing technologies. After unraveling it does not need to be straightened. This will happen naturally.

The reinforcement in the bay should be inserted very carefully, especially with a significant thickness of rods.

• How to do it:
• If you work alone. Disconnect one of the ends of the bay and put it with something quite heavy. The main thing is to fix one end of the rod. Then go back, gradually, slowly, unwinding the material
• If you work in pairs. The process will look approximately the same with the same exception: one of the ends of the reinforcement will hold the assistant

Gloves

Composite rods have a slight glass spraying, with contact with which irritation may appear on the skin. Therefore, before picking up a composite rod, put on gloves.

Protective mask

When sawing non.metallic rods, fine dust forms, which, when it enters the respiratory tract, can cause allergies or lead to diseases. The mask will protect you from such troubles.

Installation work

Installation of fiberglass reinforcement is characterized by some features that should not be forgotten. Such material is an excellent alternative to steel rods, knitting the frame in its essence is similar. Of the large advantages, it should be noted that the weight is about 10 times less than that of steel, which means that the delivery of material and its laying can be easily carried out with your own hands. This accelerates the work, makes it not so costly.

The use of fiberglass reinforcement is possible for such work:

Installation of fiberglass reinforcement is distinguished by some features. For example, there is no need to use a welding machine. The knitting is enough for fastening, but it is in no way inferior in strength and reliability. In many cases, a similar method is more preferable that, together with resistance to corrosion, it can be the main criterion for the choice of rods.

For the connection, special plastic fabric white.type whites or knitting, an flowed steel wire are used, the thickness of which is 1 mm. The connection is made by special hook, which greatly facilitates the work.

Reinforcement can be carried out in one way:

• For a small foundation, manually knitting is used. To do this, a special hook and clamps or wire are used. The work will not take much time, it is not difficult, the wire is soft enough. To protect your hands, it is necessary to use special gloves that protect your palms and fingers from cuts.
• Use for knitting steel wire. If the hook is absent, it can easily be made with your own hands, bending a small piece of thick wire.
• Using a special electric for knitting. You can do it yourself with a large amount of work. This method is used for the foundation of a large area, since it takes a lot of time for manual knitting. During operation, it is required to ensure that the reinforcement does not go beyond the contours of the plate.

Fiberglass is an excellent modern replacement by traditional steel rods. This material is durable, has a little weight, is not subject to decay. Today, for low.rise private construction, such rods are increasingly used, since they make it possible to reduce the cost of work while maintaining strength and reliability.

How to reduce injuries during work?

It doesn’t matter if you use a machine for cutting reinforcement, nippers, and maybe an electric angular grinder and a cut.out disk installed on it, in any case you need to take care of your safety. First of all, you should choose the right tool that will correspond to the thickness and hardness of the processed metal. For example, manual devices, such as scissors, cope with elements with a diameter of not more than 8 mm, but the equipment equipped with an electric drive can also work with thicker products.

Be sure to put on a robe, so you can protect your clothes and skin, and using protective glasses, protect your eyes. Pre.check the cutting machine for serviceability. Make sure if the processed element is correctly installed and whether it is fixed reliably. The workplace should be kept clean and not loaded with extraneous items. Remove the scraps into a special container immediately after completion of work.

The main provisions of SNiP 52-01-1003

The main provisions of SNiP 52-01-2003 relate to the distance between the horizontal ribs of the steel frame and the diameter of the reinforcement. So, there should not be less than 25 cm and more than 40 cm between the longitudinal rods.

The cross section of the rods is selected according to the number of longitudinal rods. For a strip foundation, it should be at least 0.1% of the area of ​​the working section of the base. For example, if the foundation height is 1 m, and the width is 0.5 m, the cross.sectional area should be approximately 500 mm2.

Reinforcement of the strip foundation is easy to perform with your own hands, it is enough to observe technologies and correctly perform the calculation. If you do it yourself, it is better to resort to the help of professionals. After all, a reliable and strong foundation is the price and key to the stability of the entire structure.

Armist. Galina Kupriyanova. 621. a link to an overview of the book of the foundation and foundations. Mikhail Berlinov. 2 121. a link to an overview of the book of fine lining. Rational structures and technologies of the device. Vitaly Krutov. 728. Link to overview of the Book of foundations on subsidiary soils. Vladimir Krutov. 250. Link to the review of the book

How can you cut fiberglass reinforcement?

Composite glass.plastic reinforcement is a material that can be cut in different ways. Such reinforcement is often used in construction in both abroad. One of the main methods of cutting fiberglass reinforcement are:

• Cut off with reinforcing scissors (bolt cutter);
• chopping off with an ax;
• sprinkling with a hacksaw for metal;
• Cutting an angle grinding machine (corner grinding).

Choosing the best option of all of the above, it is worth giving preference to a corner grinder with a detachable circle. As for all other options, the first 2 are bad for cutting the reinforcement, as they will have a great influence on the adjacent parts of the material, deforming its edges. Cutting with an ax, the use of bolt cutter or hacksaw for metal can leave almost inconspicuous cracks in the material, which will go deep into the body of the reinforcement.

Important! Cracks that have arisen in the process of sawing or cutting off, become channels into which water and alkali falls. When water enters the microcracks, there is a probability of increasing cracks in size. This is due to the process of freezing and thawing. In addition, the alkali, which is contained in concrete, penetrates the rod inside and destroys the reinforcement from the inside. Thus, the best way to cut fiberglass reinforcement is using a corner grinder. This tool minimally damages the edges of the material, while the pruning process will be as fast as possible. You can buy composite reinforcement and in the region right now with the help of our site. The price of our reinforcement will pleasantly please you.

note! If you are going to cut fiberglass reinforcement, it is worth taking care of protecting the eyes, limbs and respiratory organs. It is worth remembering that in the process of cutting fibers, dust can be created, which negatively affects the respiratory system of a person. In this case, it is necessary to use a respirator. Pay attention to him to fit well. Pay attention also to protect the hands and body. Thin fibers of basalt or other materials can easily penetrate under the skin during operation. You can protect against this with gloves that have a continuous layer of PVF and latex.

To the question: where I will buy high.quality materials for construction, we offer profitable solutions at affordable prices.