In recent years, technologies associated with the use of monolithic structures have become increasingly popular in the construction of private and apartment buildings and commercial buildings.
To give them strength and resistance to stress, before pouring concrete, a special metal base is formed inside. The reinforcing bars are tied together with steel binding wire using a special hook.
Such a tool is sold in any hardware store, or you can make a hook for tying reinforcement with your own hands.
Types of tools for knitting reinforcement
The knitting method involves using steel wire to manually fix rods perpendicular to each other in places where they intersect crosswise.
A crochet hook is a simple and safe tool that allows you to tie reinforcement bars quickly, securely and evenly.
Today, there are three types of ready-made hooks for knitting reinforcement bars, which can be purchased in the store. In addition, you can make a hook for the reinforcement yourself.
Manual
Photo of a purchased hook. The handle rotates freely.
A simple hook is a rod attached to a handle with bends that grip the wire. The hook for tying the reinforcement is rotated manually. The advantage of hand tools is their availability, durability and ease of use.
A hand crochet hook is an excellent option for novice builders, which will allow you to understand the knitting algorithm and feel the optimal degree of wire tension to obtain high-quality knots.
Screw
The knitting wire is selected with a diameter from 0.8 to 2 mm.
A semi-automatic hook is a reversible tool that operates by forward movements of the handle. The device has a rod with a hook in the form of a drill, which fits into the funnel of the handle along the thread, tightening the wire.
The cost of such a tool is higher than a manual one. But the screw tool makes it possible to cope with a wide range of work in a short time - in order to completely tighten the knot, it is enough to make only a couple of movements.
Mechanical
Builders who value every second choose an automatic hook (gun) for tying reinforcement. The operating principle of the gun is based on fully automatic rotation of the hook. This device is the most modern and advanced, allowing you to achieve maximum results and speed without large labor costs on the part of the builder.
Operating principle.
Buying such a hook for household purposes will not be justified: working with a gun requires a fairly large consumption of wire, and the cost of the device is high. But on large projects or when performing work that needs to be completed in an extremely short time, this option is ideal!
Homemade
Photo: hook made of wire with a diameter of 3-4 mm.
Purchased hooks are not always able to fully satisfy construction needs. Often, the shape of their rod has incorrect bends, and the length of the tools is made too short, which significantly affects the quality of work. So how then to make a hook for tying reinforcement correctly?
To make a device for tying reinforcement with your own hands, we will need a welding electrode or steel wire with a diameter of 4 mm.
In order to make a hook, you need:
- Make a handle for the device from a piece of thin hose to the size of a rod or trowel without a spatula.
- Insert the electrode into the hose or insert trowels into the funnel and secure (for example, using epoxy resin).
- Bend the rod at an angle of ninety degrees at a distance of about 5 cm from the handle (the bent rod should resemble a rocker in appearance).
- Bend the end of the rod in an arc.
- Before work, sharpen the sharp edge of the electrode using a file or sharpener.
A hook can be made from an unnecessary screwdriver or a handle from a construction roller, bending the sharp end at the required angle and sharpening it slightly. An automatic mechanism can be made by inserting an electrode rounded at the end into a screwdriver.
A homemade tool is perfect for household purposes, will save money and allow you to quickly knit even and reliable knots.
From tassels
The idea to make hooks from brushes came to designer Dominic Wilcox when he remembered leaving painting tools in paint after work, only to find them frozen and unusable the next day. Well, brushes with curved bristles can still serve in the household. To make these, you'll need curing paint or some reliable glue.
Methods of knitting reinforcement
Let's consider all the existing ways to connect reinforcement. Each of the options is good in some way, and is used by builders, depending on the type of building and design requirements. There are 3 ways to connect rods; with their help, a strong and reliable metal frame is created:
- Wire knitting.
- Welding.
- Plastic clamps.
These methods of tying reinforcement have their own characteristics. Each of them is correct and is applied depending on the requirements and the material used. When reinforcing a strip foundation for a private house, the reinforcement is often connected by welding rather than tied with wire. But which option is the best?
Advantages and disadvantages of welding connections
Despite the fact that these are different technologies, the right choice can save money and time on construction, without sacrificing structural strength. The method of connecting elements by welding was previously considered one of the most reliable and effective. However, such technology is not always appropriate. Usually it was used when installing bulky frames that strengthen the foundation for multi-story buildings and large cottages.
This method has some disadvantages:
- You need to have skills in working with a welding machine, otherwise you need to spend money on the services of a professional welder. In this case, the cost increases.
- Welding points are the weak point of the structure. There the strength of the frame becomes lower.
- The method is not suitable if you use fiberglass reinforcement. In addition, the A-400 (A-3) fittings, which are the most popular, cannot be connected by welding. Only rods with the index “C” are suitable for work, for example: A500C reinforcement.
Therefore, in modern monolithic construction, welding has been replaced by viscous welding. For private and residential houses, construction of a bathhouse, garage or other buildings, this is the best option for connecting reinforcement.
Pros and cons of joining using the knitting method
Why is this method so good? It has the following positive aspects:
- Speed of work completion. Knitting with wire takes little time, it is simple and does not require skills. However, if you do it manually, the process slows down. Next we will look at how to quickly knit reinforcement.
- Ease of troubleshooting. When working with welding, it will be more difficult to eliminate errors; you will have to take a grinder and cut the welding seam. The wire can be simply bitten off with wire cutters or unwound with a crochet hook.
- You don't need to be a professional to knit reinforcement.
- The reinforcement process can be performed in formwork.
- The cost of work is much lower.
An example of knitting a mesh of reinforcement with wire.
If we talk about shortcomings, we note the precariousness of the finished frame. True, this is not a big problem. The structure will be strong, the only problem is that when the frame is moved into the formwork it begins to loosen, in this case it is possible to tack the reinforcement in several places by welding. To solve this problem with fiberglass reinforcement, you need to attach several braces to make the structure more rigid and stable. By bending, the tension in the knitting areas changes, the frame moves. Therefore, you need to be careful when installing it in the formwork. It is better to knit the reinforcement in the formwork or above it if the strip foundation is being reinforced.
Features of connecting reinforcement with plastic clamps
The main advantages of this method are that it does not require special skills, it has a high speed of work, and reliable fixation of the reinforcement. The disadvantages of this method are the following:
- Price. For large volumes, the wire will be more economical.
- Speed of work (when compared with other methods of knitting).
- Correction. You made a mistake somewhere, you will have to bite off the clamp, it becomes unusable, but the wire can be tied up.
- Reliability. It is not advisable to move around a structure connected with plastic clamps.
- Temperature. They burst at subzero temperatures.
Based on these data, we can say that this method is more suitable for private construction, with small volumes, and it is also suitable for people who want to do the reinforcement themselves with their own hands.
Adviсe
- Practice and experiment. A pair of chopsticks and most wooden dowels are long enough for several hooks, so there is room for experimentation. Having mastered the subtleties, you can do a lot intuitively or by eye. You may be better able to make hooks that suit your crocheting style and specific goals.
- Most likely, you will not exactly reproduce the dimensions of a store hook. The size is mainly affected by the diameter. Measure the neck diameter and compare it to the pre-made hook size chart to see what size your hook is closest to. Most stitches can be adapted to fit almost any hook size and thread thickness. You might want to know a little more about this if size is a factor in your knitting.
- The heads of small hooks should be made from the pointed, rounded tips of chopsticks.
- Once you learn how to make your own crochet hooks, you can make a whole kit for all your crochet needs. You may find that it is more convenient for you to make and use small or, conversely, large hooks.
- For knitting items made from thin threads, it is better to buy a metal hook of a suitable size. Steel is strong enough that a thin hook will not break, whereas wood would be difficult to cut such a thin piece.
- Work over a trash can, in the yard, or on a surface that can be easily wiped down or vacuumed so that there is no problem getting rid of the shavings.
- Remove thin shavings, especially in the early stages. It's never too late to trim unnecessary things.
Professional hook for fittings - use a gun
The knitting gun is a professional tool
Advantages of a professional device:
- there is no need to pre-cut the wire into blanks;
- wire is automatically fed from the working drum;
- material savings are achieved due to the absence of wire waste;
- increased pistol performance;
- increased loop tightening force;
- possibility of adjusting the twisting force and wire length.
Among the main advantages, it is necessary to note the possibility of autonomous operation from a battery, as well as the use of a special extension cord, which allows you to perform work while standing, without bending your body. The design of the device allows you to hold it in one hand, while the other hand supports the steel rods without the help of assistants. The duration of tightening the joint does not exceed one second. This is very convenient when performing work on an industrial scale.
Along with the advantages, there are also weaknesses:
- quite high price of a professional pistol;
- increased costs for purchasing special wire;
- inconvenience of use in confined spaces;
- the need to train knitters in how to work with the tool.
It is important to purchase consumables that correspond in cross-sectional size and rigidity to the characteristics of the gun. Otherwise, equipment damage may occur.
The gun is used by professionals when assembling the frames of large foundations. And at the same time, in certain places of the grille, fastening can only be done using hand tools.
Knitting gun BM-400
How to knit the frame?
When reinforcing a small volume of concrete, builders simply place the reinforcement in the formwork and then fill it with mortar. However, if large concrete products are to be reinforced, for example, a monolithic (slab) or massive strip foundation, then a frame is required. The reinforcement must be distributed evenly throughout the entire volume of concrete in order to reliably perform its function of increasing the strength of the structure. In these cases, a complex frame is made from metal rods.
crochet hook
The first option is the simplest and most accessible. If necessary, you can buy it in a specialized store for a hundred rubles or even cheaper. Moreover, it can be made by hand if the suitable material is available - we will return to this later. The downside is low performance. A novice knitter, with a sufficient supply of wire, will be able to produce 6-10 knitting per minute.
Screw hook
The screw hook is the next step in the development of the tool for knitting reinforcement. Outwardly, it looks a little like a regular one, but thanks to it, the knitting speed will increase, and the worker will get tired much less. If, when working with a regular hook, a specialist must twist the ends of the wire and manually twist them, then a screw hook is much more convenient.
Loop the loop and ends, then gently but firmly pull towards you. The plastic handle will be fixed in the hand, and the hook itself will begin to spin quickly, securely tightening the loop. Such a tool costs from 600 to 1000 rubles, depending on the manufacturer and store. It will be an excellent choice if you need to perform work once on a relatively large object. The knitting speed will increase, however, the wire will still have to be cut and bent by hand.
What you will need
- A wooden dowel, a quality bamboo or plastic chopstick, or other suitable material. It will be easier to work with a stick whose diameter is close to the diameter of the hook.
- A folding or pocket knife or other cutting tool.
- Sandpaper, nail file or file. Inexpensive files that have no rubber inside are ideal for sanding under the hook. Whatever abrasive you choose for the final sanding, it should be as fine as the finest side of a nail file.
- Tool for cutting wood. This could be a jackknife saw (if the key is thin). If not, any suitable wood saw will do.
- Optional: pencil sharpener.
- Optional: pencil to mark the location of the first cut.
- Optional: A small round file, if you have one, works great for sanding and sawing out the inside of the hook.
Instructions for crocheting reinforcement
It is useless to knit the reinforcement with your bare hands - you can achieve the required force to tighten the wire only with the help of additional tools. Let's take a step-by-step look at the basic techniques for crocheting reinforcement.
Manual
To knit wire by hand you will need a hook. The wire is folded in half and hooked under the fixation point. The free end is threaded into a loop and crocheted until the wire is tightly tensioned.
Simple knot
To tie a wire with a simple knot, you will need to do the following:
- A wire 200 mm long is cut and bent in half.
- The bent section is pushed under the point where the two rods meet.
- The hook is inserted into the loop and catches the free end.
- A full revolution is performed around its axis. The free end must be held.
- Next, while tensioning the wire, the hook is turned several more times until a reliable connection is obtained.
You don't have to buy a hook at the store. You can easily make a convenient tool yourself by giving the required shape to a steel rod and putting a handle on the end.
Dead node
Before crocheting foundation reinforcement, you need to learn how to form a dead knot. This method is especially good for tying vertical rods for columns and beams.
- A piece up to 400 mm long is cut and bent in half.
- The segment is pushed forward by a loop from below the knot being fastened.
- The free end is passed through the top and again bent under the rods.
- The loop and the free end are aligned and then hooked with the hook tip.
- The hook is rotated with tension until the loop comes off.
To obtain a high-quality connection, you need to ensure that the wire is tightly laid on the surface of the reinforcement. The knitting process continues in a checkerboard pattern.
Screwdriver
The scheme of working with a screwdriver is reminiscent of the crocheting process, but instead of manual force, automation is used. Instead of a regular tip, a homemade hook is inserted into the screwdriver; usually a roofing nail is used for this purpose.
It is important to ensure that the speed of the screwdriver corresponds to the required force for tightening the wire. If you apply too much force, the wire will break, and at low speed you may end up with a weak knot.
Tags
Making a hook for plastic hooks. Making a hook with a bastard hook is a coching hook. A natural hook with a step hook. The hook ticks to be a hook for a hook for a hook to a hook break off the hook for a hook Knitting hook Knitting hook is suitable for the right needle hook. with them with their hands with your own hands with your own hands with your own hands with your own hands with your own hands and make these How to make a hook How to make a hook just make a notch. How to make a hook You can make a length Make a large neck make how where to make a cut Make a mark
matreadpacksguns
Automatic hook for tying reinforcement
A special device with a reverse operating principle allows you to speed up and automate the twisting process. At first glance, it looks like a standard manual device, but differs in the presence of a screw mechanism consisting of the following parts:
- plastic handle with internal screw thread;
- working body with a screw thread on the rod.
When assembled, these elements form a mechanism with a reciprocating principle of operation. The reversible device works quite simply - moving the handle causes rotation of the working element on which the wire loop is put.
Advantages of the reversible device:
- increased wire binding performance;
- Possibility of use in areas with limited access;
Automatic hook for tying reinforcement
- ease of knitting operations;
- durability of the device with regular lubrication.
The device has the only drawback - its increased price when compared with the cost of a conventional hand tool.
Using a reversible tool, the knitter can perform an increased amount of work without getting tired. The screw device is superior in efficiency to the manual device when it is necessary to manually pull and twist the wire ends. Without reinstalling the working hook, by cyclically moving the handle you can achieve reliable fastening.
Procedure for using the device:
- Insert the hook of the tool into the twisted loop.
- Pull the handle towards you along the working axis.
- Return the handle to the starting position.
- Perform the next movement cycle.
You can also make your own semi-automatic tightening device using a regular screwdriver. You will need a bent nail without a head or an L-shaped rod, the end of which must be inserted into the tool chuck. With a little practice, it is not difficult to master the principles of operation using this device.
How to make a chain of air loops
Crochet air loop for beginners: crochet basics, photos and videos
The possibilities of crocheting allow the needlewoman not only to create unique items for her wardrobe, but also to make her home cozy and unique with the help of crocheted interior items: napkins, capes, coasters, etc. We offer a master class “air loop using a crochet”, which will help beginners prepare for the creative process and teach them how to knit.
Preparing to knit will take a little time. For the process, the needlewoman needs a hook and yarn.
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- Weight and features of steel corrugated reinforcement A3 and other classes
Making your own hook
Despite the low cost of a crochet hook for reinforcement, some experienced craftsmen who have worked with reinforcement for many years prefer to use homemade ones rather than purchased ones. This has its advantages.
- When making it yourself, you can give the handle the optimal shape so that it fits comfortably in your hand. Your hand will get less tired and your productivity will increase.
- The choice of steel for production; you often come across factory hooks made of soft metal. As a result, it cannot withstand the load and bends.
- Make a hook for crocheting reinforcement of the required size. There are times when it is impossible to get to the place of tying with a factory hook because of its length.
- Small, but still savings (if materials and tools are available).
Electrode hook
An electrode hook is suitable for small amounts of work. When it is necessary to tie a small frame from reinforcement.
Making a hook with your own hands takes only 5 minutes. You will need: electrode 4, pliers and a grinder (if not, you can do without it).
Let's look at how to do it step by step:
- We beat the electrode off the protective coating.
- We retreat 1-2 centimeters from the edge and bend it at 80-90 degrees.
- We retreat 3-4 centimeters from the other edge, make the first bend at 90 degrees. We retreat another 10-12 centimeters, and make a second bend at 90 degrees. We retreat another 4-5 centimeters and make a third bend.
- Let's sharpen the tip of the hook a little so that the wire can peel off better.
The hook is ready, it should have the same shape as in the drawing below.
Homemade hook made from rebar with a wooden handle
A homemade hook is most often used by professional reinforcers, thanks to the advantages described above. Its production will take about 2 hours, and the result will be a hook that is in no way inferior to the factory one.
To make a hook you will need the following materials and tools:
- Corrugated fittings 8-10 in diameter, 35-50 centimeters long;
- wooden blank for handle;
- 2 washers - the diameter is equal to the hook handle;
- 2 nuts;
- pliers, knife or hatchet;
- grinders and welding;
- drill with drill 8-10 diameter;
- sandpaper.
Manufacturing procedure:
We grind the ribs of the reinforcement on a grinder so that it becomes smooth. We take a corrugated one, not a smooth one, since a higher grade of steel is used for its production, the hook will be stronger. Let's prepare the pen. Using a drill, a drill of a suitable diameter, drill a hole in the center of the workpiece. Afterwards, if necessary, we adjust it to the required size using a knife or hatchet. At the same time, make sure that the hole is in the center of the handle. Next, sand the handle until smooth with sandpaper. We put a nut on the edge of the reinforcement and weld it by welding. Put a washer on top of the nut, then put on the handle, then the washer and nut again
It is important that there is a small gap between the washers and the handle so that the hook handle can rotate well. To do this, place a piece of paper folded a couple of times between them.
Then weld the second nut. Be sure to place water near you so that if the pen catches fire, you can immediately extinguish it. Now we will sharpen the edge of the reinforcement with a grinder, do not overdo it so that it does not turn out too thin, otherwise the crochet hook will bend. We retreat 1-2 cm from the edge of the handle and make a bend at 90-140 degrees (it all depends on the chosen type of hook, see examples of bends in the picture below). We retreat 1-2 centimeters from the edge of the reinforcement and bend the tip of the hook with pliers at 80-100 degrees. Make sure that the bends are in the same plane. To increase the service life of the handle, we cover it with impregnation for wood against rotting and moisture in 2 layers. After drying, coat it with wood varnish. The hook is ready, all that remains is to make a couple of ties for testing; if it fits well, then you don’t need to bend anything, otherwise you can bend it a little to fit your hand.
Photos of handmade hooks for tying reinforcement
We recommend watching the video instructions for one of the options for making a crochet hook with your own hands.
That's all. Now you have not only learned about knitting devices, but also learned how to make a hook for tying reinforcement with your own hands and can easily cope with this task.
Knitting technique without knitting needles or crochet. Master class for beginners
The product will resemble knitting if the loops remain open during the process. The thing has an unfinished appearance. At the end of the work you need to close all the loops.
To form a row, you must first pull all the necessary loops through the previous ones, and then close these loops. The product will imitate crochet.
Calculation of yarn consumption
A product with a pattern (especially from arans, crossed loops) consumes significantly more yarn than on a stockinette stitch. Therefore, as with any knitting, first of all, you need to knit a sample.
It is best to use one skein with a known length of thread. Wash and dry the sample. Now the area of the future product is divided by the area of the sample. The result is the number of skeins for a given item.
Preparing for work
Having calculated the required number of skeins, it is recommended to purchase several more.
This is because:
- a specific loose edge will require edging around the perimeter, if it is a blanket, bedspread, cape and similar flat things;
- The color in another delivery may differ slightly from the yarn already purchased.
Helpful advice! It is recommended to rewind the threads into a ball. Turkish yarn is of high quality, flaws are rare. But this way you can notice the defect - the absence of a loop, sparse pile, discoloration, broken thread - and take action in advance.
Simple knitting pattern
The stockinette stitch is the simplest pattern.
- The desired length of the future item is determined.
- The thread straightens out in front of itself.
- It is advisable that the loops be directed in one direction.
- The product is knitted from right to left and from left to right, without turning it over.
- The thread from the ball is wound behind the knitted row, the loops from it are pulled through the existing loops.
Joining yarn from another ball
Simply tying the ends of the thread is not effective, because the hidden ends always come out either during use or when washing the product. Therefore, it is recommended to make 3-4 knots, tighten tightly and cut the thread almost at the base, or you can sew the ends with regular matching threads.
Closing the loops
The thread from the ball should already be cut. The second loop in the row is pulled through the first, the third is pulled through the second, and so on. As a result, the closed edge looks like a pigtail. You need to start closing the loops from the opposite edge from where the working thread remains. The loop from the ball is cut at the bottom in the middle. Its end is pulled through the remaining last loop and fixed in the product.
Important recommendations for choosing reinforcement for the foundation
Diameter
When choosing reinforcement for the foundation, first of all, pay attention to the diameter of the rods. The relationship is simple: the thicker the reinforcement, the more severe loads it can withstand
When determining the optimal diameter, first of all, the characteristics of the soil are taken into account (the main point is heaving) and the expected weight of the finished building, taking into account the weight of its internal arrangement and residents/visitors.
This is how it should be ideally and according to the rules. Along with this, many private developers refuse to draw up design documentation and perform related extensive calculations, adhering to average and generally accepted values. In the case of the construction of relatively small buildings, for example, such as a bathhouse, such an approach is acceptable.
The recommendations are as follows:
- if the structure is erected from relatively light materials (timber, gas blocks and other lightweight building elements from this series), reinforcement with a diameter of 1.2 cm is used. It is impossible to use rods with a diameter of less than 12 mm for arranging the foundation - reinforcement so modest in its overall characteristics is only suitable for use in the construction of supports for fences, gates and other light utility structures;
- if construction is carried out using heavier materials, the recommended diameter of the reinforcement changes accordingly. In most cases, rods with a diameter of 1.4-1.6 mm are used.
Assortment of fittings
Class
The second important indicator is the class of the reinforcement. For a private foundation, class A-3 material is suitable.
Corrugated fittings A3, steel grade A500S, GOST 5781-82
The fittings of this group are very easy to use (easily bends without the use of special tools), durable and reliable. Less commonly used are rods of class A-2 (they can be bent 180 degrees, A-3 – 90 degrees).
Table of reinforcement classes and steel grades
No title. Discussion on
Eggplant for the winter!
1. Just a great recipe! Z»ili for the first month of winter, perhaps)
Good for pasta and just some bread!
-3 kg of eggplants cut into rough slices and soak for 3 years in salted water, drain and place in the marinade.
— Marinade: 0.5 l of olive oil, a jar of Chumak tomato paste, 2 glasses of water, 700 g of cucumber, 2 tbsp. salt., 1.5 cl.
— Stew eggplants in marinade 20 minutes.
— Add 3 middle heads to the stew and simmer for another 20 minutes.
— Place in light-colored jars and sterilize for 20 minutes.
2. Eggplant in tomato social
2 liters of Odessky juice or 2 liters of crushed tomatoes
All this is great banyak + bay leaves + peppers + cloves - bring to a boil + 9 series of cibulin (salt cubes) and cook for 7-8 minutes at the point of boiling + 9 pieces of bell pepper (large cubes) - cook 7-8 hv. + 9 eggplants with skin (large cubes) - cook for 25-30 minutes. Stir with a wooden spoon. Place in dry jars. Do not sterilize. Yield: 5 cans of 1 liter each.
3. The “Mother-in-Law’s Tongue” salad, having lost its name, is not at all for nothing, but it is also tasty and hot.
The gourmet snack of kozhna gazdinya can be flavored with a small amount of paprika (hot pepper).
You will also need: eggplant 3 kg, bell pepper 800 g, chasnik 2-3 heads, paprika 5-6 pods, tomatoes 4-5 pcs., salt, zukor, otset, olive.
Place the tomatoes in a food processor and grind them.
We reject the same masa (gostra adjika).
Boil 20 khvilins stirringly in a saucepan with a heavy bottom.
Add 2 tbsp. cucumber 2 tbsp. salt, 50 ml of boiling water. After 5 minutes, remove from the fire.
Cut the eggplants into circles 0.8-1 cm thick, add salt, add 15 slices, brush on both sides until golden brown.