What is a mill on concrete: typical features and scope of

Practically any concrete surface has rather high strength characteristics and increased density. That is why, when processing it, special milling machines with different nozzles are used depending on the type of surface and the type of work performed. What is a mill on concrete, and how is the milling of the concrete surface by one or another device, you will learn by reading our article.

Scope of equipment

During the construction of the majority of residential and non-residential objects, concrete floors are poured. Often, when repairing concrete surfaces from an old stratified and contaminated layer, as well as when pouring new floors, milling machines for concrete are used.

Milling of concrete is made in the case of:

• If you need to remove a small layer of coating thickness of 5-10 mmeg polymeric or magnesian;
• If partial base leveling is required before the next flooring on the surface of such flooring as linoleum, laminate or wood flooring;
• In case it is necessary to give the base some roughness that prevents slipping, for example, in industrial premises, storage boxes, in parking areas, and so on;
• For removal from the basis of a layer of polymeric floors on a mineral basis in case of violation of the casting technology, as well as for removing the exfoliated old cement-sand screed and cleaning the surface layer for the operation of the coating in the residential and non-residential sector.

Variety and design features of devices

1. Equipment for the treatment of concrete bases consists of:
2. The welded metal frame with convenient control levers and for movement the equipment is equipped with a rubber small chassis;
3. The propulsion for cutting tools is an electric or pneumatic model of the engine, as well as a diesel one;
4. As a basis for the cutting element, a special drum drive is used, on which a cutter is mounted, through which concrete is milled.

Type of engine equipment

For the production of various works, an appropriate concrete milling machine is selected, equipped with diesel, gasoline or electric drive. Engine power is also selected depending on the type and amount of work performed.

For the production of indoor works, it is advisable to use electric or pneumatic engines that do not emit harmful carbon dioxide gases. But for work in open space, for example, at airports, petrol or diesel drives are quite suitable for handling runways.

Machines on the electric drive are more popular as more economical and practical, but with the help of such devices it is possible to perform work only in the case of providing the object with electric power, for example, from the electrical network, and in its absence there is a need to use generating sets. Also, these electric machines are less preferred in the case of the production of sufficiently large amounts of work.

Some models of equipment are capable of operating from the mains in 380V, such models are more productive, and they can be used to process quite large amounts of work, for example, in factory or warehouse premises.

Cutting elements devices

Milling of concrete floors is carried out with the help of a drum mechanism, on which various types of cutting elements are mounted. The drum with incisors is driven by a drive, the main role in which is played by the engine.

Depending on the type of work performed, the corresponding machine is selected with certain types of cutters. The device is equipped with shafts with chain drive in the amount of 4–9 pcs. depending on the type of machine. The incisors themselves (lamellae) are installed on the basis of the drum drive in a staggered pattern, which ensures complete overlapping and high-quality processing of the base.

Cutters in action

Those or other cutters produce processing as soft, for example, milling of asphalt concrete pavement and hard surfaces (concrete or stone).

Cutters are easy enough to remove any paintwork, give some roughness to the floor and remove embossed irregularities.

Some modern machines are equipped with unique patented trefoil-shaped cutters. The perforation of the cutting element allows you to capture a large area of ​​the treated surface and at the same time control the deformation of the tool. These types of incisors are more productive and in some cases can replace standard lamellae.

The special heavy-duty type of steel used for casting large and small punching (punching) cutting elements allows it to be used for treating concrete or asphalt surface, as well as for its leveling and cleaning.

Chip cutting elements having a width of 11–39 mm are used in the treatment of asphalt blades with a thermoplastic coating.

With the help of round cutters, milling of a concrete floor with a large area is carried out.

Nozzles in the form of metal bristle base suitable for cleaning the surface of various materials from traces of rust, scale, oil, fuel oil and other types of dirt.

Important: When installing the cutting parts on the equipment, you must ensure that they are in the correct position. So the cutting edge should be located only in the direction of rotation of the drum.

The technological process of milling

Processing the base is made by longitudinal drawing of grooves on the surface of the machine for the first time. Next, the grooves are applied in a perpendicular manner, so that a lattice is obtained from longitudinal-perpendicular lines, which are subsequently polished and as a result are completely removed by a sander with appropriate nozzles.

In the event that the first result failed to achieve the desired result, then the operation is repeated again.

In most cases, the surface milling procedure is carried out in closed residential and non-residential premises where the ventilation level is insufficient. Therefore, it is advisable to connect powerful construction vacuum cleaners to the device of the casing, which ensure the removal of sludge and dust, which quite quickly remove the incisors and the entire drive mechanism of the machine.

In addition, the premises provide normal working conditions, which is important and, of course, necessary.

To the note: It is allowed in the absence of vacuum cleaners to slightly moisten the surface layer with water using special spray guns. It is strictly not allowed to use electric milling machines under the open sky during rainy and snowy weather, especially for machines operating under 380V (Danger to life!). During the work with these units it is necessary that the instruction and technology were followed.

Cutting reinforced concrete with diamond circles, as well as brick and any other hard surfaces is carried out in accordance with the technology of construction and repair work in residential and non-residential premises, as well as diamond drilling of holes in concrete.

The electric cutter for aerated concrete is somewhat different from the cutters for processing concrete foundations. Aerated concrete blocks have a porous structure consisting of so-called lightweight cellular concrete less durable than the concrete base.

With the help of these machines, aerated concrete blocks are cut and special channels are made under the plumbing and electrical wiring, and also grooves are formed for the reinforcement elements under the reinforcing belts, which are then poured with concrete.

Summing up, we draw conclusions

So, we hope in our article, you received an answer to the question of what is a concrete router, and for what purpose these devices are used, and what kind of equipment is used to perform certain types of work. For the most part, these machines are used in the treatment of concrete flooring, as well as asphalt concrete and are used almost everywhere.

The devices are quite simple in operation and therefore with their help some types of work can be done by hand without the help of specialized companies, especially since the price of these services is relatively high.

For clarity, we recommend that you watch the video in this article, which shows the process of processing the concrete surface of the floor.