How to align the concrete floor - practical advice on technology

As a rule, a question arises if it is assumed surface finish.Virtually all materials which are used as "finishing" the coating, are placed on a flat foundation maximum.Even the concrete floor (seems to be no apparent distortions) often do not comply with this requirement, not only in areas where it equips a tie.In rooms where floor slabs are w / w, and often there are height differences at the junctions of products, and so important, so be sure to have a floor leveling.

In addition, the smoother the base, the lower the consumption of materials used for fixing any products - to "finish" finishes, insulation or soundproofing.For example, adhesives.There are several methods of leveling floors, but a number of activities carried out regardless of which one is selected.So first let's talk about them, the more so because it is they are often neglected, as they often do, "skipped".

Cleaning

surface Unfortunately, many inexperienced "repairers builders" reduce it only to the process of removing unnecessary objects, dirt and dust.The main task at this stage - to reveal all surface defects (chips, cracks, irregularities in sealing joints, the appearance of the fungus, or a clear failure of the material).That is why after the "rough" cleaning is necessary to thoroughly wash the floor.Visual inspection of the clean surface all is well seen.

Rectification

Any crack in the floor - "loophole" for liquids.In addition, this way out of the room "out" heat.There is no need to explain the importance of this point in order to bring the surface.Now on sale there are sufficient funds, with which you can qualitatively repaired any cracks.Particular attention - places the floor joints with walls premises, especially external.If

seen signs of putrefaction, it is necessary to conduct appropriate treatment of the affected area.It also has lots of trains.One can cite the example of copper sulfate, which is often referred to as a proven "popular" means.

Processing

surface precisely these many and neglected (or simply do not know).Any substance, regardless of the structure is destroyed under the influence of liquid.They are distributed through the capillary in all directions, so it is advisable to make the impregnation of the concrete base.

In order to prevent the emergence and development of putrefactive processes, should also make the floor processing antiseptics.It is advisable to prime it and as used in this composition further strengthen the base material.

And only after all the above activities, you can continue directly to the alignment process.The most suitable method is selected depending on local conditions, availability of time and space.Let us consider briefly the most common, as more "manual" of each - a topic for another article, which are cited in the text.

Dry screed

Pre-floor must dry thoroughly.Then the entire surface (with the "turn-up" on the walls of the order of 15 - 20 cm) is covered with a film p / e.Its edges are fixed to them by means of adhesive tape construction.The joints between the strips (they are - "lapped") also are sealed.

sale is a special tape, called a "damper".It serves as a shock absorber for the plates that temperature fluctuations will change its geometry.She pasted on the perimeter of the room at the height of the leveling material location.This is determined by the fact that it would be used as a log, and a layer of "backfill" thick.

Next (as an option) in the cell pour concrete block, align, and on top of the crates lay material "rough" sex.In practice, for this purpose, fiberboard, particleboard, gypsum fiber sheets, layered plywood - the choice is.This finish is smooth and warm.This design is quite handy if you expect any installation utilities "on the bottom."Details the process of dry screed is described here.

However, for areas with excessive humidity or in those where there may be a leak of water (bathrooms, laundry rooms, kitchens), this method is unacceptable, since a wet floor "lead."

Cement-sand screed

useful if the entire area there are significant differences in height, as such screed less than 3 cm is not done, otherwise it will not match the strength of the regulatory.

Unlike the previous one, instead of the cellular skeleton fit "beacons", which is produced and alignment.The best option - the same metalloprofili that divide the entire room on the strip.The interval between samples is selected based on the size and configuration of the room (as a rule - in the range of 1 m).

DSP solution is poured between the rails and "take away", leveled rule (the smooth boards, planks and the like).The mixture

(brand of cement, sand and its ratio) is determined depending on whether the load is subsequently subjected to the floor.

Pliers

Their other name - self-leveling floors.The virtue not only in ease of use, but in a fast preparedness to further finishing floor.However, such compositions can be used if the surface roughness minor - less than 30 mm.

simple technology - ready-mix concrete and is placed on the leveled (detailed here).Then, to avoid voids due to air bubbles, the surface is rolled special device - a spiked roller.

peculiarity is that such mixtures pretty quickly "grasped", so the work is carried out sequentially, in some areas.Have these products (depending on composition) and a number of "cons" - poor resistance to aggressive media, low temperatures, mechanical stress.In other words - are more "gentle" than a DSP.

choosing any way, you need to focus on the appropriateness of these or other materials depending on the purpose of the premises and the specifics of its intended use (temperature, humidity, intensity of movement of persons or goods).

Practical advice

• When leveling you need to take into account the temperature in the room.What it is lower, the longer it will dry out the prepared surface and furnished screed (or self-leveling floor).
• quality surface treatment is largely determined by thoroughly mixing the components.Masters are advised to use as a "mixer" E / drill, in which the holder is clamped special nozzle.It can be made of thick wire, giving, for example, a form of "butterfly".When mixing speed drills - minimum.
• If the floor has a slight defect, but it is with a certain bias (which does not occur very rarely), it is advisable to use it for aligning lags.Method ties or self-leveling floor does not help here.
• To control the quality of work was higher, it is necessary to arrange the construction level on a long flat rail.The use of such "tools" give a more accurate result.