Grinding of the floor. Grinding of concrete floors: prices

Before starting the installation of the final coating of the concrete floor, it is necessary to prepare the base. In this case, we mean the evaluation of the state of the surface. First of all, the base should be level, not having cracks and other defects. From the quality of the surface will depend the final result of the finish. Before applying the impregnation, to perform dedusting and treatment with paints or varnishes, the concrete floor is polished. Let us consider this process in more detail.

Benefits of processing

When applying a polymer coating, for example, a properly executed work on leveling the base will ensure a reliable adhesion of the surface to the finishing material. Grinding increases the practicality of the floor. In this case, the surface does not require special care after carrying out the work. This, in turn, significantly reduces operating costs. Properly carried out floor polishing eliminates the need for frequent restoration of the coating. Surface treatment allows you to create a perfectly flat base. For many finishing coatings this requirement is paramount. In the process of laying the bulk polymer floor in the preparation of the base includes, among other things, grinding. An untreated base absorbs moisture. With a drop in temperature, minus water crystallizes, its volume increases. This, in turn, leads to the destruction of the material. Such damage is particularly bad for the ground floor.

Where is this coating used?

The surfaces treated in this way are widely used in shops, office buildings, hangars and warehouses. Such a method of treatment is also popular in residential areas. The polished floor is appropriate in any interior. Such coverage is arranged on children's playgrounds and other outdoor facilities of an open type. As is known, concrete has a high resistance to the influence of aggressive factors and mechanical loads. The latter allows you to lay the cover in places with high traffic.

Process description

Grinding of the floor is one of the varieties of construction of the foundation. It is necessary to remove the old coating layer. Sanding the concrete floor is one of the most common methods of leveling the surface. Preliminary treatment of the substrate is thus carried out on the third - fifth days after pouring. The final grinding of the floor is carried out after the solution has completely hardened. In the course of the process, pollution, defects (cracks, ripples, chipped, notches, local sags) are eliminated. If the screed is new, grinding the floor allows you to remove the lime milk from the surface. If the base is old, the upper damaged layer is removed during processing. After the work is completed, adhesion is increased and the whole surface is "refreshed". It should be noted that the strong wave changes in the floor screed does not eliminate the floor grinding. In fact, the equipment moves on the surface, repeating its profile. Eliminate the altitude differences can only re-cast the base.

Types of processing

Floor grinding can be carried out in a dry or damp way. Depending on this, the cost of the work will be set. However, in that, and in another case, one equipment is used. The tool must be able to cope with stone and concrete surfaces.

Wet method

Such grinding is used for a floor with a coating of marble chips or mosaic. The technology in this case involves the use of abrasive elements. As a result, an almost perfect base is formed. The surface is not externally different from the polished one. In the wet grinding process, water pumps are used.

Dry method

For a concrete screed, experts recommend using this option. It should be noted that it takes more time for dry grinding than for wet sanding. In addition, during operation, a large amount of dust rises from the surface. However, it is still better than the wetting cement slurry. When dry grinding visibility is better, which allows you to correct errors almost immediately. To remove dust, you can use an industrial vacuum cleaner.

Tools and equipment

The floor grinding with their own hands can be carried out with devices that are sold in any construction shop. Most of the tools presented on the shelves are of European manufacture. Among domestic products worthy options for today is not enough. Some masters grind the floor with a Bulgarian. However, as practice shows, surface processing with this tool is quite problematic. But, according to experts, for grinding in a residential building will be enough and Bulgarians. In this case, it is not advisable to purchase expensive equipment. In addition, the Bulgar can be reached in hard-to-reach places, which can not be done with a large car. To process the surface will need a diamond bowl, an abrasive disc, two nozzles.

Cost of work

The treatment in this way is carried out not only on the screed. It is quite common and polishing the wooden floor. When laying a parquet, for example, this stage is an integral part of the installation. Prices for services today are different:

• Grinding of a wooden floor, the area of which is not less than 20 m2, at any condition of the surface with the subsequent application of three layers of varnish - 250 r / m2.
• Improved quality processing. At the same time, 2 types of tools are used, at the end of work the surface is covered with three layers of varnish - 500 r / m2.
• Grinding of the floor with an area of less than 20 m2 - 300 r / m2.
• Removal of a layer of paint with the subsequent drawing of a varnish (or without it) - 400 r / m2.
• Grinding with a fine abrasive. In this case, the surface is not covered with varnish, but is prepared for laying a coating - 180 r / m2.
• Treatment for painting - 140 r / m2.
• Grinding of concrete or sand concrete floor with vintage strength is not more than M300 - 80 r / m2.
• Surface treatment with polymer coating. In this case, the material is completely eliminated and leveling is performed - 110 r / m2.
• Grinding of a concrete base with a vintage strength greater than M300 - from 90 r / m2.