Equipment for heating concrete: types of transformers.

The use of special equipment allows you to cast concrete, even in winter. Thanks to this innovation, the construction of a house can be completed much earlier than the terms originally envisaged. What you need and how it works, we will look at this article.

General provisions

To begin with, let's look at the reason why concreting is impossible in winter, this will help lift the curtain of the purpose of the already mentioned equipment. And the whole thing in the water, which is one of the components of concrete.

Как вы можете часто наблюдать и наверняка помните из школьного курса физики, она кристаллизуется при минусовой температуре, что мешает нормальному процессу образования цементного камня. WITHледовательно, необходимо не допустить её замерзания до полного схватывания раствора.

The table shows the possible ways to protect the concrete mix from frost, and their features:

WITHовет: при осуществлении электрического прогрева рекомендуется также накрыть стяжку утепляющими материалами. Это позволит сократить расходы на оплату потребляемой электроэнергии.

As you can see, do-it-yourself heating equipment costs more and requires some effort to install, but at the same time:

• Gives maximum results by increasing the temperature of the solution to +80 ⁰C, which cannot be said about simpler ways of maintaining the positive temperature of concrete.
• Able to work in severe frost, which is quite important in our climate zone.
• Covers the entire volume of the structure, and not only its upper part.

Therefore, the discussion below will deal with transformers, which are the most rational from the point of view of efficiency and expenditure of funds, by protecting cement mortar from freezing.

Used hardware

To implement this, you will need a single-core cable and at least one transformer, depending on the volume of concrete that needs to be heated. It is noteworthy that it can be not only horizontal structures, but also vertical ones. And if everything is approximately clear with the wire, then the possible variants of suitable equipment should be reviewed in more detail.

Types of transformers

Here are the basic parameters of the most common models:

Tip: if you are not engaged in industrial concreting, it is recommended not to buy, but to rent the necessary equipment. So it will be much more economical.

Unit structure

The instruction describes the following structure of a classic transformer:

1. Active part:

• The high voltage winding of the magnetic circuit of electrical steel.
• The low voltage winding of the magnetic circuit of electrical steel.
• Lower and upper yoke beams.
• Low voltage taps made from aluminum bar.

1. Circuit breaker. Protects equipment from overloads and unintentional short circuits of an electric circuit. Located on the introduction of the unit.

1. Control block. Allows you to monitor the performance and performance of the equipment.
2. Casing. It protects equipment from physical damage and direct water ingress, and also contains low voltage leads on its surface.

Recommendations for use

When installing and using the electric heating system of concrete should follow some rules:

• Fixing the wire is most convenient to produce to the elements of reinforcement and formwork.

• Install the cable in smooth turns to prevent the internal metal core from breaking.

• Connect the cable to the transformer with cold ends and lead them beyond the heating zone.
• Avoid crossing the wire between them so that the increased load does not melt the insulation winding.
• Do not turn on the equipment before pouring the solution.

Conclusion

Concrete in order to gain the necessary strength in winter, must have a positive temperature. Best of all, the implementation of such a task is handled by special electrical equipment, including single-core wire and a transformer. Above, we gave the basic parameters of the most common models and some recommendations for their operation.

The video in this article will provide you with more information.

Concreting in the winter is possible, the main thing is to use the correct equipment for this.