Dedusting of concrete floor: technology, materials
If the concrete floor is equipped with technology, then itwill be distinguished by durability and reliability. This base is a practical floor covering and can itself fulfill the role of an exploited surface.
Necessity of dedusting
In the process of using a concrete floor, you cannote one drawback, which is expressed in the formation of a large amount of dust. In production facilities, it can become a serious problem, expressed in explosive.
Dedusting of the concrete floor canto produce any person who had even a small experience of construction and repair work. For this, there are many techniques that can be used in a complex or separately.
The causes of dust in the operation of concrete floors
Before the dust removal of concretesex, you can get closer to the characteristics of such a foundation, which lead to negative consequences. The reasons lie in the structural structure of solidified concrete. This conglomerate mixture is composed of different materials, which differ in size and chemical composition. The crystalline silicate lattice formed during the maturation of the cement stone is intersected by coarse fractional fragments of insoluble gravel and sand filler.
If you look at a section of concrete under a microscope,then you can see a pronounced porosity - from microscopic to large pores, which are filled with gel cement substance, water and air. They contain a lot of chemically active, unrelated substances, which are unnecessary ballast and cause erosion processes, which is especially true for the upper layers, which are characterized by low strength. If you study the characteristics of concrete in more detail, you will be able to understand that during the maturation of the composition, cement milks come out onto the surface, which, when hardened, forms a fragile layer, which is the main source of dust formation.
In order to exclude these processes,The surface can be hardened or the upper unstable layer can be removed. Sometimes it is bound with additional crystalline formations or a polymer structure. Hence, three approaches to solving the described problem follow: surface hardening by topping application technology, impregnation treatment or grinding. In order to achieve the most positive result, quite often the technologies are used in a complex way.
Dedusting of concrete floor can be mademethod of topping, which is very similar to ironing. The last of these technologies involves rubbing dry cement into uncured concrete. The essence of topping is almost the same, but instead of cement a multicomponent mixture is used, which acts as a reinforcing agent. Among the ingredients, high-quality Portland cement, fine filler and chemical additives can be distinguished. The surface layer after the completion of such work is more durable. If dedusting concrete floor by topping method, then you can change the color of the surface, making it yellow, gray, blue, black, brown, red or green.
Selection of material for topping
Depending on the fillers, the formulations forTopping is divided into several groups: metallized, corundum and quartz. The latter variety is inexpensive and the most common. These blends include fillers in the form of quartz sand, which is well purified during production. Additionally, colored decorative pigments can be used. Quartz topping increases the strength of the surface by 1.5 times, this is enough for long-term operation of floors subjected to medium load.
Having visited the store of building materials, youyou will understand that quartz topping is universal. It is widely used in warehouses, educational institutions, shops, hotel lobbies and shopping centers. If it is a residential space, then quartz topping is perfect for conditions with high humidity and increased load. More effective are corundum hardeners, which raise the resistance of the floor to mechanical loads by 1.8 times, to abrasion - by 2 times. The composition contains a filler in the form of corundum chips, which is resistant to abrasion and abrasion. It gives the surface a matte finish.
Methods of work
The next step is to grout the surface, andAfter 2 hours, you will need to grind the machines. This will form a matte finish on the surface. Together with topping, a coating for concrete is used in the form of special impregnation - kuringa. In order to avoid the formation of cracks during drying, the surface must be covered with a plastic film. After 24 hours, when the concrete has solidified, it is necessary to make seams with the help of a carver or a grinder with a diamond disc. As a rule, they have the form of a square with a side of 6 meters and a depth of 1/3 of the thickness of the plate. The width should be about 15 millimeters. After 28 days, the joints should be filled with polyurethane sealant.
Dedusting the floor with a fast hardening compound
When consumers visit the building storematerials for the purpose of acquiring a means for dust removal of the floor, they quite often pay attention to self-leveling floors. If you also decided to use this technique, you should become more familiar with the technology. It provides for preliminary priming, which will prevent the penetration of air into the filling floor and prevent the formation of bubbles. The application of this composition is carried out on a clean surface with a roller, and in order to improve the adhesion to the filling floor, the fine sand must be poured on the still not dried ground.
The next step is to fill infast hardening floor, which consists of the base and finishing layers. In the first case, the thickness should be a limit of two to three millimeters. Apply to the application 12 hours after priming. This is true for the polyurethane floor. If you chose epoxy floor, then you need to wait 17 hours. A day after the application of the base, you can start pouring the finishing layer, its thickness will vary from 1 to 2 millimeters. In order for the fast hardening floor to have a gloss, it is recommended to complete the installation with a thin layer of polyurethane varnish.
Use of impregnations
The characteristics of concrete described above allowto understand the master even before the arrangement of such a floor, that he will be a source of dust during operation. That's why you should choose technology, preventing this trouble. As an alternative solution it is possible to use impregnations that are applied to a strong and prepared floor. For this, the surface is repaired with epoxy putty, and also freed from flaking elements and debris. To combat dust, you can use a building vacuum cleaner, only after that it is recommended to start applying an impregnating composition. Deep impregnation for concrete is applied in strips, leveled with brushes or rakley.