Concrete saw: varieties of cutting tools and application

In this article we will talk about how to cut a concrete wall and how to cut a concrete slab. Moreover, we will offer you those methods that will allow you to cope with this task simply and relatively quickly.

Cutting concrete structures is the task that we face when carrying out major repairs with elements of redevelopment of premises, in the process of laying these or other communications, as well as during the correction of errors made in the manufacture of concrete goods.

Common methods

Since the first I / B designs appeared, the need has arisen to cut them, and the development of specialized equipment has begun.

There is a wide range of concrete processing techniques on the market, we list the most relevant of them:

• cutting punch;
• use of angle grinder (grinder) "Bulgarian";
• chain saw use;
• cutting reinforced concrete with diamond circles through the use of specialized equipment.

Perforator application

Cutting concrete with a perforator is the most affordable way, since many compatriots in the household have a more or less powerful impact drill.

The cutting of concrete is carried out as follows:

• on the contour of the future cut with a drill with pobedite surfacing, holes are drilled;
• then, along the outlined contour, the material is cut down and selected by a chisel.

Among the advantages of the method are the possibility of doing it yourself using the available equipment.

However, there are significant drawbacks, including:

• the presence of impact on the treated surface;
• high noise level;
• dust and dirt;
• the inability to work with reinforced concrete;
• low accuracy of the contour, which was carried out cutting.

The use of grinders

Angle grinder (angle grinder) "Bulgarian", in contrast to the puncher, is a type of circular saws. This is the optimal solution for those who do not know how to cut keramsit concrete blocks or concrete structures with high cutting accuracy.

Among the advantages of the method are the availability of equipment and the low cost of the diamond disc. But along with the advantages, there are disadvantages, among which is the impossibility of timely discharge of dust, as well as the limited diameter of the discs and, as a result, the possibility of cutting structures with a small thickness.

Chain saw use

The chain saw for cutting concrete with an electric or petrol drive is a more advanced technology, since such equipment can process material to a depth of over 30 cm, depending on the modification.

The equipment is designed to work with unreinforced and slightly reinforced concrete. For work the special diamond chain is applied.

During operation, the circuit is subjected to significant heat. In order to prevent overheating of the cutting tool in modern saws the possibility of water supply is provided. A jet of water is fed through the hose to the chain and at the same time cools the cutting tool and removes dust.

The chain saw can be used as an independent tool for cutting concrete goods, but the greatest efficiency of operation of this equipment is achieved in combination with wall-cutting machines.

The use of gas cutters and joint cutters

Cutting reinforced concrete with diamond circles is performed with a special tool - gas cutters and joint cutters. This equipment works with the use of segment laser wheels with a diameter of up to 600 mm.

The equipment is used for efficient processing of both unreinforced and reinforced and heavily reinforced concrete. In addition, such tools are successfully used for cutting hard granite and marble.

Cutting is carried out at high speeds, and therefore, to avoid overheating, the disk on the concrete for the circular saw is cooled with water. On all, without exception, tools of this type provides for the possibility of dust.

We cut concrete to a shallow depth

You do not know how and how to cut concrete to a shallow depth? It is not difficult and you will need the LBM tool or as it is also called the "Bulgarian". As a rule, such a tool can be equipped with sintered diamond discs with a diameter of 105-125 mm. If this size is enough, it's time to get to work.

Important: The use of the grinder requires the use of special clothes and protective equipment, including goggles, gloves and a respirator.

We work as follows:

• On the Bulgarian we hold the locking button and unscrew the lock nut with a special key on the landing pin.
• We dress the disc, observing the recommendations for the direction of rotation and holding the locking button, we tighten the nut with maximum effort.
• We draw the contour of the line of cut on the concrete.
• Turn on the grinder, and firmly holding the tool in his hands, leading them along the surface in the direction opposite to the rotation of the disk.

Important: Make sure in advance that you will not find hidden metal parts along the cutting line that may damage the disc.

We cut concrete to a great depth

If you need a tool for cutting concrete to a greater depth, in this case, you need a power cutter. In fact, this is a large circular saw on which a large-sized diamond disc is installed. On the market are various modifications of the tool. The main difference between these modifications is the power and dimensions and, as a result, the maximum allowable disc diameter.

Important: Work as a power cutter requires not only skill, but also a certain physical fitness. The tool weighs a lot and it should be taken into account when choosing a particular model.

All gas cutters are conventionally divided into two types:

• Modification for dry cutting - does not have a device for dosed supply of water.
• Mods for wet cutting - equipped with nozzles for supplying water to the cooling jacket and to the cutting disk. The price of this modification, for obvious reasons, is much higher.

Conclusion

If it is necessary to make a hole in the wall, ceiling or at the base of the floor, diamond drilling of the holes in the concrete will probably be required. But, if you need to cut a window in a solid wall or a hatch in the ceiling, you need a completely different equipment, equipped with diamond-coated disks.

In this article, you learned about what these tools are and what is the instruction for their use. If you need additional information, you can get it by watching the video in this article.