Building solutions for aligning the floor in the simplest form are known for a long time-this is an ordinary sand-cement mixture. Add a little innovation, modernity, chemistry – and you will receive a self -leveling leveling mixture for the floor, which was found in housing construction. After clipping with water, the solution must be poured onto the prepared concrete or other base, and after 2-3 days the floor can be operated.
The leveling mixture for aligning the floor has a small -dispersed filler, cement or gypsum in the main components. To obtain specific characteristics, plasticizers, additives and accelerators are added to the dry composition, the work of which consists in the rapid independent leveling (spreading) of the solution and its uniform hardening. Also, after grasping, the floor should have the declared characteristics of the strength, wear resistance and reliability of mechanical stress and damage.
Leveling mixtures for aligning the floor have a composition that freezes and remains monolithic on any floor – concrete or wooden. The mixture diluted with water is poured on a pre -processed surface. Processing consists in removing irregularities, spots from foreign substances, shaking cracks and chips. With poor quality of the black floor, it is recommended to re -fill it with a concrete screed.
A thin film covering the floor is much stronger than concrete, and differs near the following advantages:
Does not wear out, which means that it does not separate a particle of dust from the surface;
Serves as reliable heat – and a sound insulator;
Has a high speed of drying and set of declared strength;
The material weighs little and does not create an additional load on the floor.
Nevertheless, such surfaces are not left in its pure form, but decorated with linoleum, carpet, parquet, and t. D.
The composition of the leveling mixtures
Leveling equalizers are sold in bags, the cost of such building materials is several times lower than prices for putty solutions and mixtures. The industry has mastered the production of mixtures with different characteristics and composition, including those that can align the base without preliminary preparation of the floor with the thickness of the leveling layer up to 100 mm. True, it will cost several times more expensive than the usual procedure for leveling the floor. Mixtures are made on a cement basis and gypsum (with anhydrid additives).
A cement -based leveling solution is not recommended to apply a thickness of 50 mm thicker. If necessary, make a thick base a cement leveling mixture poured into several layers of 20-25 mm thick. The level of gypsum in this regard is more profitable-from it you can make a layer up to 100 mm thick in one pass, which dries 5-6 times faster than cement. The only condition for working with gypsum is low humidity in the room.
How to make the right selection of a mixture
When leveling the floor in the apartment or in a private house, you can rarely find a height difference of more than 30-40 mm. Therefore, you can work with a mixture on a cement basis, which is more profitable both in price and in working conditions – humidity in the room can be any. If the floor must be aligned throughout the apartment. Including the kitchen, bathroom and toilet, it is easier to separate the rooms by humidity and prepare different mixtures for each individual case: gypsum – for dry rooms, cement – for rooms with high humidity.
To align a wooden base, special mixtures for wood work are sold. It is impossible to use standard cement or gypsum compositions – they immediately crack in the process of hardening.
There is a wide range of leveling self -leveling compositions in the building materials market. Knowing the characteristics of the floor in the room, you need to select a mixture with suitable parameters. The mixture of the Knauf Boden series is in demand due to the quality and cheapness. The peculiarity of this building material is that it contains not only chopped gypsum, but also quartz sand that makes the surface stronger, and polymer additives to increase the plasticity of the surface and its wear resistance.
With equal operational possibilities, the wear resistance and strength of gypsum mixtures is almost half higher than that of compound compositions. The floor of the gypsum leveling floor is optimal for arranging the “warm floor” system or laying any floor decorative coating.