Grinding concrete floor: the secrets of high-quality work

Grinding concrete floor eliminates the probability of occurrence of a dust cover during operation, and extends its use. This treatment affects the aesthetic quality, since the surface becomes smooth. To carry out this work using different tools. To pick up the necessary equipment and attachments, you need to understand some of the nuances.

When and for what purpose performed polishing of concrete floors

Appointment of polishing is to remove old, damaged top layer, which has been spoiled in the process of exploitation of sex. This procedure is also carried out in cases when it is necessary to level the screed, before finishing.

Grinding involves two successive events. The initial stage, called pre-grinding is performed only 3-5 days after the pouring of concrete. To carry out finishing is necessary to wait until complete solidification of the floor.

Some situations involve pouring a solution from scratch. In such cases, formed on the surface of lime milk. Before grinding it is required to remove the tie. Work with the old coating is much easier. In this situation, the process is reduced to remove the surface layer.

Note!Such treatment can improve the quality of the surface to clean it from dirt. It does not matter when it was flooded floor: grinding in any way increase the specifications and provide visual appeal.

Such treatment is also recommended that before applying the finishing coating. Grinding to create the perfect base. It should also say that the concrete grinding makes it possible to deal with a common problem - moisture absorption. Uneven surface absorbs more moisture, which could adversely affect its structure and lead to the destruction in some cases.

However, there are problems that can not be corrected by this treatment. For example, it refers to serious irregularities. Of course, small defects are eliminated by this treatment, it is possible, but significant differences not able to remove. Grinding machines move along the surface, repeating her lines.

Grinding of concrete floor: The dignity of the coating

Floor made of concrete, which was pre-grinding, became widespread. This is due to its performance characteristics such as wear resistance, durability, resistance to abrasion and other mechanical impacts. Price per m2 grinding concrete floor depends on the characteristics of the coating and its area. Consider the other positive characteristics of smooth coatings.

Special attention should be paid to the service life of the concrete floor. It can reach a few decades, and in some cases - even more. In public places all over the world can meet such coatings. Similarly, the process not only concrete, but also marble floors. Grinding provides a glossy surface that is resistant to moisture.

Another advantage of these coatings is their cost. It is worth saying that the perfectly flat surface can be sanded and subsequently operate as a base coat. But also often serves as a floor base, which is treated decorative materials. Such surfaces do not require periodic maintenance. If necessary, correct the local defect is not difficult.

Modern and effective ways of concrete polishing

Tools used for grinding work, can be used for concrete, as well as for the stone floor. Currently, there are two methods that allow for such a surface treatment:

• wet;
• dry.

The first method is most often used in the case, if the floor has custom trim. As an example, a tile coating or marble chips. When calculating the cost of the work necessary to take into account the price per m2 resurfacing. Gender treated in a manner different ideal evenness. To conduct such a finish is applied aggregates and various chemicals (abrasive).

Note! The dry method is more common, as it is used for the treatment of standard concrete (and not only) surfaces.

There are special machines for grinding the floor, allowing to implement such technology. To perform the dry processing is necessary a lot of time. This is due to the fact that a lot of dust formed during dry grinding, and after finishing each section have to wait until it settles. And only after that work is resumed.

The polished concrete: Detailed classification of equipment

To carry out grinding work of this kind, various devices. All of them are classified on grounds such as the structural complexity, functionality and cost. In order to select the desired device for a particular purpose, you need to carefully study the characteristics of individual devices. Known hardware versions:

• angular;
• tape;

• vibration;
• mosaic.

Devices that belong to the first group, characterized by small size. With the design point of view, they have a strong similarity to angle grinders (angle grinder). Grinding surfaces with products of this type requires a lot of time and effort. Some angular units include in their design a mechanism aimed at damping vibration impacts arising during operation. It should also say that there are hand-held devices that operate on battery power, which is very convenient.

Angle model used for cutting and processing concrete surfaces. With the help of these machines simplifies manual grinding in inaccessible places. Another advantage of them is the fact that working with them does not require any special skills. However, minus the angular models is that they are not suitable for grinding large areas.

Grinding concrete floor sander belt type is different from the technology used in the angular models. Tape machines for processing concrete, include a special tape with an abrasive coating, which moves during operation of the roller support member.

Important! When using tape devices definite pattern is traced: the higher the tape speed, the faster is made of concrete resurfacing.

The speed of the belt in the application device is adjusted by replacing the nozzles, which have different granularity. These devices are used when necessary to perform a rough base treatment (e.g., to remove a damaged layer of the upper. Price grinding concrete such unit is somewhat higher, since the instrument eliminates the thicker layer (10 mm).

Vibration equipment carries out the processing of concrete surfaces abrasive sheets. Work items are recorded on an ad hoc basis. Such machines are semi-professional equipment. They are equipped with a planetary gear, which is achieved due to the high efficiency grinding self-leveling floors, as well as any other surfaces. The quality of work depends on the diameter of the discs. The smaller the value, the higher it is. Devices of this type are used to prepare the surfaces to finishing.

Tiling equipment includes working details that are presented discs abrasive coating. Such devices are designed to handle natural stone and tile surfaces.

Hardware Overview: professional grinding machines for concrete

In order to pick up the necessary equipment, it is necessary to take into account individual factors. These include the surface area to be treated, as well as the fact, how often need to use the device. Many hardware stores offer a large variety of different devices that are used for professional polishing or processing of concrete surfaces in the home.

Grinding devices differ from each other in value. Grinding of professional floor unit is expensive, because such equipment is more functionally and technologically.

a level device includes a planetary gear. It is a special drive, through which special movement of several drives within the same geometrical axis are produced. This mechanism consists of the main and auxiliary nozzles. All of them during move synchronously. Efficiency is achieved by grinding the diamond deposition surface of a disc. Professionals use such machines for grinding all over the floor. The price per square meter of processing such unit, is generally higher when compared to the less tech devices.

Design features of the machine intended for grinding concrete surface, lies in the fact that it has a rotating assembly. On this element fixed abrasive wheels by which removal is performed of the upper layer of concrete. Professional devices are used to working on large areas and have a high efficiency. Machines for polishing concrete floors allow you to perform a wide range of problems and are actively used in the construction industry.

Benefits of professional equipment for grinding

Compared to handheld devices, which are intended for the treatment of small areas, these units have many advantages. Consider the benefits of such a grinding equipment in more detail.

The main advantage of these machines is that they include in their design of the controller. In this switching device varies the rotational speed of working parts. With professional equipment is considerably simplified wet surface treatment. Machine for grinding concrete in the required quantity can deliver liquid which binds dust particles and prevents them from up in the air.

Dry sanding also significantly simplified and accelerated, because professional units have a dedicated dust collector. As a result, treatment is carried out with minimum contamination.

Note!The modern market offers the manufacturer a wide range of machines for grinding concrete floor. Some of them are positioned as a device for home use.

Work to improve the surface of the concrete floors, carried out with the use of special units, are highly accurate. The maximum error does not exceed 2 mm. These machines are easy to use and does not require constant maintenance.

Related article:

Repair concrete floor: features of the process of restoration and complete replacement of the screed

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Having interchangeable nozzles for surface treatment makes it possible to control the roughness of the floor. This allows you to get exactly the result, which was conceived at the beginning of the work. However, for grinding concrete with their hands is better to get less complicated device.

Special equipment has many advantages, but there are some downsides to its use. In the first place, all such machines produce a lot of dust, and they are quite noisy. Of course, their main drawback is considered to be high cost. Prior to the acquisition of a unit experts strongly recommend to get acquainted with the list of equipment and study the technical characteristics.

Bulgarian beater: equipment for domestic use

Buy expensive grinding units impractical for everyday use. If there is a need for correction and processing of the concrete surface at home, then the best option is to use a grinder with special nozzles.

Such a device is suitable for the fast and efficient sanding of small areas. These tools have the democratic value that is often the determining factor in their selection. Grinding concrete grinder has another advantage: due to the compactness of the device there is a possibility of processing hard to reach places.

Bulgarian workers can be a tool drive. As a rule, it is small in diameter. The effectiveness of the use of diamond-coated disks provided. Alternative drives are packing in the shape of a bowl.

The quality of the concrete surface treatment depends on the weight of the tool. For polishing the floor at home use small cars, which are equipped with a diamond blade. Such aggregates have the planetary gear, however, are highly efficient.

Grinding "helicopter" floor: Highlights

Professional and semi-professional devices, which are found on the market today, are in high demand. The most popular models are those that have been issued by European and American manufacturers.

Note!The quality of domestic cars is somewhat lower, but they have a more attractive cost.

Among the devices used for sanding floors, is to provide a model that masters called "helicopter". The use of such a device allows to obtain a perfectly smooth surface. Today, two varieties of such units:

• hand;
• two-rotor.

Models belonging to the first group, characterized by a compact design and ease of use. In turn, two-rotor assemblies are complex equipment for grinding concrete floor. Such wipe devices differ large in size and have special camera chair.

Trowelling machine, equipped with several blades, surface processing is performed in two stages. Initially produced low-grade grinding through special nozzles which are fixed on the blades. During the second stage is used directly blade moving at high speed.

How to choose grinding equipment: Recommendations

There are several criteria that need to be considered when choosing the grinding equipment. One of the most important parameters affecting the quality of the processing, the power unit is considered. It is also required to determine in advance the right price sander. Grinding of concrete floor - work that requires care and accuracy. Correctly chosen equipment is a huge advantage.

The second very important indicator - the weight of the unit. For home use it is best to choose the most lightweight model. It should also consider the size of the operation member, since the quality of grinding is dependent on the criterion. On machines that are equipped with abrasive belts for grinding grain affects the result.

Another factor that must be taken into consideration - performance. It depends on the frequency of rotation of the working mechanism. When choosing should also take into account the brand sander. Grinding floor units known companies more acceptable, since such devices are highly efficient.

Professionals recommend to pay attention to the additional device equipment. For comfortable work best to select the unit, the noise level is minimal. It is also important the presence of a vacuum cleaner. Quality units are equipped with a system that allows you to collect dust generated during operation. The range of this equipment makes it possible to choose the appropriate model for a particular purpose.

Selecting disks for grinding: the characteristics of the working elements

In the treatment of concrete floor end result depends largely on what kind of cutting parts are used at the same time. The selection of data elements to be considered material grade. Grinding discs for concrete grinders are different in structure and size. The same applies to the working elements used for other types of equipment.

Important! Mark concrete affects the strength of the floor. If the base used for pouring concrete grade M250 or below, to perform efficient processing corundum cutting acquire enough detail. M300 brand cement has higher strength characteristics. Corundum for its elements are not suitable processing. In this case, the details of which have diamond coating.

It is worth noting that diamond tools are not compatible with concrete, having a mark below the M250. When processing such a material is their rapid wear. This is due to the fact that the concrete floor, which has a small strength, has high abrasiveness. For grinding floorings best use grinder with a diamond cup or "helicopter".

Before selecting the cutting elements are advised to consult with the seller. He will pick up the necessary disk or bowl that best suit specific operating conditions.

Grinding of concrete floor with their hands: How to make the right cover

Characteristics of the concrete surface can vary widely, depending on what material the stamp was used to create it. Also, the properties of the coating affects its service life. Any concrete floor, irrespective of the characteristics, may be subjected to grinding. Process the decorative surface is more difficult as it requires a lot of effort. For this work, it is recommended to hire qualified professionals. Price grinding concrete floor will depend on the area of ​​the premises and the individual characteristics of the coating.

It is important to remember that the surface does not have an appreciable height differences (greater than 5 mm). When choosing a concrete brand should pay attention to the peculiarities of a particular space and its future purpose.

For buildings relating to the type of production and warehouse space it is common to use the brand of concrete from M150 to M300. Sew handle all such surface after casting. In this case, there is no need to organize a decorative concrete floor. cover functionality plays a major role.

In order to create a solid foundation, you need to purchase cement from the M300 marks and above. Specialists also advised during casting apply filler in the form of rubble to provide the most reliable coverage.

Fill also should adhere to certain rules. In order to obtain an aesthetically attractive surface, to add to the marble chip solution.

Note!When introducing additional ingredients into the solution need to cut a layer of concrete of 10 mm. It will allow supplements to show the color and texture.

Technology resurfacing of the concrete floor: preparatory work

Before you start processing the concrete surface, it is necessary to conduct appropriate training. Step preceding the initial grinding, involves several important procedures. The first thing to do - to check the floor for cracks, irregularities and other defects. In the case of serious differences of height of the defect must be removed.

Then you need to tap the surface of the concrete. This procedure allows to determine the strength and stability of the coating. During tapping it can be detected drawdown coating. With such problems need to fill the base again, which greatly affect the final price. Sanded floor should be only after the mains check the room. The instruments used for the treatment of concrete surfaces need uninterrupted voltage.

It should also say that often domestic masters do not pay attention to the joints, which are located between floors and baseboards. When detecting such gaps they necessarily need to cover up with a solution. Building Regulations contain provision which prohibits to perform the grinding work, if there are such gaps.

Independently carry out such work is available, but not everyone is under force. You can always use the services of experts, but it is recommended to determine the cost of floor grinding. Price per square meter in this case multiplied by the total area of ​​the premises.

It should also advance to check the cover hardness. Make it is not difficult. All you need to carry out such checks - to grind a small section of the floor and to evaluate the final result.

Step by step guide to implement the grinding

metal fittings or the network may be in the upper part of the concrete coating. In this case, a grinding does not make sense, since the equipment will become worthless. Remove the valve can use the grinder. The initial grinding step is performed coating alignment. Perform this work in several ways:

• via milling;
• by shot blasting;
• grinder.

Most often, domestic masters use to align the surface of the grinder. It should remember that this operation is performed with a diamond-tipped special spraying, stippling which is from 25 to 30 microns. If you order this work from the masters, you will have to pay a considerable sum, which is calculated taking into account the sanding. Price sanding the floor in the home is determined solely by the cost of the equipment.

The next step - removal of small defects. For such an operation widely used materials based on epoxy. Their use allows to easily fill small gaps and holes.

Important!Before you begin to surface treatment, it is necessary to wait two weeks after the hardening of the cement screed. During this time, the material will have time to acquire sufficient strength.

Only then allowed to proceed to sanding the floor sanding machine. Price operation is added to the value of surface treatments and finishing coating (if present).

For direct grinding of most commonly used cutting element coated with diamond coating. Grit disc should be 40 microns. Work is carried out gradually. For a perfectly flat surface can be further floor polishing using a material with 1500-3000 grit. The final step - installing baseboards and Coating (if necessary).

The cost of resurfacing the floor per square meter price review

On the final cost of the grinding work is influenced by two factors. The first is the strength of concrete determined mark. The second factor - surface characteristics, namely size gradients, defects, etc.. As a rule, the floor processing, which was made from cement marks M300 and higher, more expensive about 20 rubles.

Price per m2 of concrete polishing is also dependent on whether a method of processing selected. Finish wet method is more expensive. This is due to the fact that in this case the increased depth of the surface treatment. Let us consider in more detail pricing.

The cheapest will cost pretreatment of cement screeds. It is worth noting that it is carried out by dry method. To this tie has become a strong need 5 to 7 days. The price of such a procedure is about 100 rubles. per m².

A higher value is rough processing screed. It attains strength for 28 days after pouring the floor. Price per 1 m2 grinding concrete cover having an age of about 110 rubles. Such work is performed by dry method. A tool which enables such a procedure is characterized by fine coating.

Finishing screed is cheaper. Price in this case does not exceed 90 rubles. And finally, the finishing is done by wet method, so its cost is the biggest (120 rub.).

Run the floor sanding can each person, not possessing special knowledge and skills. This requires some sort out the nuances such as concrete type, the characteristics of units used for processing, and so on. D. Before you begin the work, it is recommended to study the step by step instructions and follow them precisely.