Knit reinforcement with their hands

Tying rebar using a reverse hook with plastic ties and screwdrivers

Some users of our portal prefer to knit the valve using a reverse hook.

This device is in the form of a long handle with a hook on the end, which is necessary to pull over.

Opinion on the effectiveness of such a hook diverge. Someone thinks reversible (semi-automatic) hook an effective tool. Someone refers to him as a useless toy, preferring a conventional knit reinforcement hook.

Sheriff (User FORUMHOUSE):

In my view, to work with a reverse hook it is very simple. I pulled the wire and tighten. Manage and child, and a woman.

Fgh (User FORUMHOUSE):

I knit reinforcement is only semi-automatic. Quickly, efficiently and conveniently. Neutral hook me and not interested.

beutiflet (User FORUMHOUSE):

Here is a photo workflow knitted crochet so.

Dax (User FORUMHOUSE):

And I bought a normal hook and reverse. Tried both semi-automatic and I did not like. All the usual knitting.

Opinions were divided. According to alex_k11, if they choose a reversible hook, then buy only the right - with dvuhzahodovoy groove working mechanism. On the market are cheaper and lower-quality semi-hooks with screw odnozahodovoy notch. Such hooks pulls at the tightening, and they tear wire.

For clarity, making photos "right" and "wrong" reverse hook.

Also reversible hooks can not go through a lot of work. When the working part of screw SEWING hook notches begins to pull. Result - wire breaks.

In addition, users of the portal have experimented with using the screwdriver as a device for binding reinforcement.

Opinions about the effectiveness of such a "machine" also divided.

Komissarov (Participant FORUMHOUSE):

I own knitting valves using hex screwdriver "Quartet", inserted into the cartridge. I liked very much. Convenient, and high speed.

According to its users FORUMHOUSE andre777, from "Shurik" there is no sense. It is necessary to catch torque tightening. Slightly increased the time - had broken wire. Reduced - nedotyanul. Moreover, the adjustments necessary to make the time, because the rigidity of the wire from batch to batch may vary.

Wearing the screwdriver in his hands - you get tired quickly, especially in large quantities and at work in uncomfortable places.

andre777 (FORUMHOUSE User):

Better to just hook has not yet come up with anything.

Another option that speeds up and simplifies installation - tying rebar with plastic ties.

rual (Member FORUMHOUSE):

I knit with plastic clamps small strip foundation. The work went very quickly.

According to another user FORUMHOUSE Plastilin, He tried to tie everything - from homemade hook nails, pliers, screwdriver. It's not that, but the volume of work for the forthcoming huge. After thinking, he decided to use the screed, and it went.

Plastilin (Member FORUMHOUSE):

Rate increased again in 5. Knit ties everything - Laying nets, bridges, etc. The ends of the straps, which cut off, and where - no.

User Council - should be used only high-quality ties. In tie with expired shelf life tears off heads, or they are torn. Nekonditsiyu not to buy, you can buy a pack of 1 per sample and put it in the case. If the tie is not torn, is to buy a large batch.

When selecting tie / clamps are guided by the following characteristics:

• Ties must be taken from 4.7 mm to 5.5 mm. Smaller - very weak.
• 1-2 for binding reinforcement bars sufficiently screed 16 cm long.
• For binding rods take 2-3 coupler 20 cm long.

To avoid mistakes, act experimentally. Buy a pack of 2-3 ties of different sizes and knit them reinforcement.

68RUS (User FORUMHOUSE):

I think that you do not intend scale construction, the tie - the best choice. I made Tie TISE foundation, and a relative, even when pouring of the concrete pump, all valves remained in place. We are for the purity of the experiment even got up on the frame, all survived.

This article describes the the nuances of construction of pile-foundation rostverkovogo.

Important: The plastic ties at low temperatures become brittle. If the concrete is poured assumed powerful shocks (eg, filling the basement with great height (wall basement), large volume, etc.), the collars, due to the lower strength than that of the binding wire can break. So first we think, and then do it.

Tying rebar with plastic collars, primarily justified with a relatively small amount of work: for concreting of structures such as strip foundations of a small section of the pile, Laying nets, bridges, gratings and etc.

Large foundations, complex and important structures necessary to knit wire with a plurality of nodes. It is more reliable and less expensive, because in terms of the number of nodes binding wire is cheaper than the hundreds of thousands of ties.

Also remember that the ties binding wire and task - providing a given geometry of the reinforcement cage during concrete pouring. Subsequently (after curing solution) and tie knots in the wire structure is not involved.

How to calculate the binding wire

Apart from the question how and what to knit reinforcement, any novice builder thinks about how much to buy a tie wire.

shusharu (User FORUMHOUSE):

I'm doing a slab foundation 12.5h12.5 m size. I need to contact the valve in two rows of 200x200 mm. On the perimeter and under the bearing walls 100x100 mm. When ordering fittings told me that about stud 1 ton of reinforcement takes 12 kg of wire. This is true?

To understand this question, it is necessary to know the source data. It:

• The diameter of the valves, which must bind.
• The length of the wire loop, which goes to a single node.
• The diameter of the wire and its weight.
• Step mating and number of prospective sites.

The fact that 1 tonne of rebar "ten" is the number one whips, and 1 ton of "twelfth" - more.

Accordingly: changing the overall length of the armature and the number of bindings for the same step. To take averaged calculation that 1 250 mm requires binding wire (wire folded in half, knit reinforcement 10-14 mm diameter).

Now we need to calculate the number of matings and how many meters are in 1 kilogram of wire. Hence we find, how many kilograms of wire needed for a given quantity mating valve.

shusharu:

The construction of the basement I took valves 12 mm in diameter. The wire diameter of 1.2 mm is used. The wire is sold in rolls of 80 kg or slicing a length of 40 cm, weight "sheaf" is 5 kg.

Konstantin Y. (User FORUMHOUSE):

Are conducting calculation as follows: wire diameter 1.2 mm weighs about 9 g per 1 meter. From 1 kg of wire turns approximately 440 litters (250 mm stud). In 1 ton of the "Twelfth" fittings 1100 meters. When knitting with a step of 20 cm is obtained about 2,800 nodes, which take approximately 6.5 kg of wire in the slicing of 250 mm.

If you take the wire at the rate of 40 cm in length by 1 mating, too many wires will go to waste, because 1 knot, in average, it takes from 25 to 30 cm.

As bring armature 12 m long car GAZelle

Measuring valves most running marks (diameter 10 mm) is sold in long logs of 11.7 m in length, so the lengthy transport used for its delivery. It is not always convenient. The truck may not be enough space to enter the narrow portion with a sharp turn, or the developer is not profitable to order and pay for the delivery of long-length to bring a dozen whips.

Typically in such cases the valve is cut into whips approximately 6 m. It is wasteful and increases the the complexity of work on merging reinforcement cages in the manufacture of the bases with the long sides. In connection with this interesting experience of the user with the nickname of the portal newman1, which is brought to the site fitting a length of almost 12 meters on the Gazelle.

newman1 (FORUMHOUSE User):

My know-how - I buy fittings and, together with the assistant, bend whip in half. As a result, the length of the folded half reinforcement of about 5 meters. We are easily bent and "ten" and "twelfth". Fittings to shower and then into the body with a small Gazelle release overboard (less than 2 meters), that allowed the rules of transportation of cargoes.

The valve is brought to the site where a long whip straightened using homemade sledge with a metal handle on which is welded a nut. The thread on the nut does not allow crank whip, bends and fittings at any desired angle. As a modification of the sledgehammer may be used instead of a crowbar, which is also welded nut.

newman1:

I knit reinforcement wire. I thought to use clamps, but is not very strongly, while changing welding reinforcement metal structure.

For welding frames, grids, etc. fittings used with marking - the letter "C" at the end (e.g., A400C). Most chassis brand fittings (e.g., labeling - AIII (A400)) necessary wiring, because welding in place a metal strength is reduced.

In the forum thread you can explore all the features and nuances of the binding hook fittings, Battery knitting gun and screwdrivers. We recommend to read the article about manual bending rebar and improvised armaturogibyChoice of welding inverter and basics of manual arc weldingAs well as cold forging secrets. And from a movie, you will learn about all features melkozaglublennogo reinforcement strip foundation.

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