The self-leveling mixture for the floor, the flow rate of 1 m2 of which must be calculated until mixing the mixture, must be used for 20 minutes. After this period of time, the self-leveling mixture loses its qualities and its use becomes impossible.
Therefore, the amount of mixture prepared for use should be no more that you can work up to loss by the self-leveling composition of its properties.
Events to reduce the consumption of self-leveling mixture
The consumption of self-leveling construction mixture depends on the number of irregularities on the area and the porosity of the base of the room, in which it is planned to perform a screed.
If the volume of irregularities is very large, then before using a self-leveling composition, it is necessary to pre-perform a cement-sand tie.
In the case of insignificant irregularities of the leveling surface, high-quality and thorough preparation will help ensure the cost-effective consumption of self-leveling composition.
Eminency elimination
Inserting cracks with putty will help save me after a leveling mixture
Reducing the consumption of the leveling solution directly depends on the number of cracks, chipping and irregularities.
To eliminate the irregularities and defects of the base can be using a putty and the next tool:
- Perforator;
- grinding nozzle;
- putty knife;
- primer;
- Putty composition.
Before starting work, to detect all cracks, it is necessary to carefully approach and spend the base.
All irregularities are knocked down by a perforator. Frequent coverage sections are removed.
Thin cracks whose width is not more than 2 mm, expand.
Across long cracks make brine cuts.
Using the nozzle in the form of a grinding circle, remove the roughness of the coating and small irregularities. After that, the surface again swell and vacuuming, treated with putty and after drying it is grinding.
Performing surface primer
The primer fills and lines cracks, protecting the base
For the correct and economical flow rate of the self-leveling mixture for the floor, it is necessary to perform primer the surface of the base on which the leveling layer is planned.
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The priming consists in treating the surface with special mixtures capable of soaking the upper layer of concrete or dissolve base, filling all cracks, pores, chips and other defects. This allows you to reduce the consumption of the leveling mixture and ensure its more uniform distribution on the surface being processed.
It should be borne in mind that the primer composition should be selected according to the base material to ensure its high-quality clutch with the material of the existing floor. In addition, the primer should have a high ability to penetrate the surface of the material being processed.
For reasons with increased porosity, special primer with strengthening properties is applied, which is not suitable for conventional coatings.
Types of soil bases, the area of their use, depending on the material being processed and their consumption is indicated in the table:
| Type of primer material | Description | Drying period |
|---|---|---|
| Acrylic primer | For concrete, cement-sand and gypsum bases, has strengthened properties | 1 hour |
| Primer for absorbent bases | For concrete and cement-sand bases. Elastic and has antigribic properties | 4 hours |
| Adhesive primer | For processing smooth surfaces | 24 hours |
Before performing the progress of the base, regardless of what composition it will be carried out, it is necessary to carefully clean the floor using a vacuum cleaner.
The application of the solvent of the equalizer according to technological requirements is made in several layers, and each subsequent layer is applied after drying the previous one.
How to correctly calculate the consumption of self-leveling mixture
The correct calculation of the consumption of the leveling mixture will provide high-quality execution of work, since the prepared solution cannot be stored, but should be used immediately after the knead. The preparation of a larger volume of the mixture will cause its overrun, and less can affect the quality of the surface. For more information on calculations, see this video:
For the economical spending of the leveling composition, the device of the first coarse, and then the second leveling layer, is performed.
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On the packaging of the mixture, its flow rate is 1 m2 and, as a rule, taking into account the layer thickness of 1 mm.
The consumption of the leveling layer is higher than the flow rate of the finish coating.
To determine its consumption for a particular room, you need:
- Multiply the thickness of the planned layer to the minimum consumption of the mixture according to the accompanying instructions and the available recommendations.
- Then multiply the area of the room.
- Since these calculations are approximate, then you need to add 10% to the obtained value.
- The calculated volume must be divided into the amount of the mixture contained in one package, is usually 25 kg. The amount of bags of the mixture required to perform work in this room will be obtained.
Rough levelover cheaper finish mixtures
The finish mixture for alignment of the floor is more expensive than a coarse level, so it must be applied to the aligned surface using the base layer, which levels the surface, but since it has a large aggregate and forms a rough surface, cannot be used as the base under the finishing floor material.
Under this technology, the device of self-leveling floors, the finishing layer is obtained by minimal thickness and to determine the amount of the mixture necessary for its execution, you need to multiply the area of consumption specified by 1 m2.
The minimum thickness of the finish coating should be not more than 5 mm, so the surfaces of the surfaces prepared for the device of the finish coating should not exceed 3 mm.
To reduce the flow rate of the self-leveling mixture to 1 m2, it is necessary to strictly comply with the technology of the filling flooring device and follow the instructions and recommendations indicated on the package of a particular composition used to perform this type of work.
Proper preparing solution
Knead the mixture in a small amount to have time to distribute it in 20 minutes
No need to reduce the consumption of an aligning mixture to breed it in more water than indicated in the instructions. This will negatively affect the quality of the finished design.
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In addition, its preparation should occur at a temperature not lower than 10 ° C. Stirring should be made before receiving a homogeneous mass in two stages.
Compliance with the composition of the preparation of an aligning mixture will ensure the estimated flow rate per 1 m2 of the surface.