How to make a concrete screed floor with their hands: all the answers for future artists

By Admin | Garden And Buildings / Construction And Repair
30 May 2016

answer to the question: "How to make a concrete screed floor with your hands?" For more than one decade in does not lose its relevance.By obscure reasons, more than a dozen years in the Russian construction industry has a tradition, according to which during the construction of the house floor slab is aligned with only one side.Namely the one where the ceiling is lower apartment.


correctness and quality finish hand serving flooring, usually no one does.And as a result, such a surface is always rough, with valleys and sometimes sticking valves, and in some places there are differences with the difference in the level of 5-10 cm. Naturally, in order to perform good quality coating on a

surface of the floor is necessary to work hard in the firstall necessary concrete screed.

Preparing for "wet" alignment ↑

Outset that perform such work will require the Executive possession two basic skills:

  • ability to prepare a working mixture.
  • ability to arrange beacons to perform further ties.

We select the necessary tools ↑

no secret that today there is a mechanized version of the tie, but for its devices, you must have special equipment and extensive practical experience.

In the vast majority of cases the implementation of such work has been the owner of housing, so the first thing he must do is to prepare the necessary tools and materials.

A set of tools to perform a cement-sand screed with their hands
Tools used for the production of concrete ties

So, the concrete screed must be performed with the use of such tools:

  1. -level line.
  2. Gidrouroven that you can easily construct improvised.For it will take a half-liter plastic bottles and the flexible hose.In this case, it activated the principle of communicating vessels.
  3. knife.
  4. Roulette.
  5. spatula.
  6. Trowel.
  7. roller for applying a primer or waterproofing.
  8. Drill.
  9. attachment on a drill to prepare the mixture.
  10. special containers, which will prepare a solution (30 liters).

finished surface by screed ↑

The surface under the concrete floor
finished surface to the implementation of concrete screed

concrete screed floor with their hands involves surface preparation.To do this, use an industrial vacuum cleaner, and can be cleaned by hand, in a word, all the debris and dust must be removed.Then conventional grout sealed with existing cracks and holes.In places dock floor and wall damper fits tape, which must protrude above the surface of the screed approximately 3-5 cm. This will help to avoid the manipulation of the flow of the liquid solution on the ceiling a neighbor's apartment, and also protect against cracking, after the screed is fully ready.

also qualitatively executed cement impossible without waterproofing.For this activated a special composition: penetrating insulation, asphalt or alkyd insulation.Such materials are available under the trademarks - Knauf, IVSIL, Litokom, Penetrol and others. In an extreme case, can be laid at the bottom of future ties polyethylene, and if it is not a single sheet, the docking areas adjacent pieces should overlap by 2030 cm.

expose level as laid ↑

before a concrete floor, you must find the highest point, and set the level.The highest point will be the benchmark by which to determine the thickness of the screed and will be put up beacons.A thickness of the screed depends choice of material from which it is actually performed, as well as their number.Therefore, it is very troublesome crucial moment, which determines how, in principle, be performed qualitatively cemented floors.

around the perimeter of the premises laid the baseline, and then put the starting mark at a distance of about 1 meter from the level of the floor slab.And then you will need a line-level, through which the line is drawn around the perimeter of the room.In addition, you can use a more modern gidrouroven or laser level.In this way you are installing the base level.

When measuring the distance from the baseline to the floor surface and the highest point.For example, the line is laid at a distance of 1 meter from the floor.If you measure the distance from the previously selected line level to the floor, it may be that at some point, this distance is 1 meter, and some 97 centimeters.And that, and the other points to be signed.The point with the minimum distance from the floor to the line-level and will be the highest point.Then you need to move down the zero level for orientation on the level of the floor.

may also want to define the highest point in the center of the room.For this strand is stretched across the width of the room, and then need to go through its entire length.If it turns out that the highest point is just in the center of the room, then be the new zero.And at the highest point it has to defend the 3 centimeters, so that later could be made freely cement-sand screed.In other words, the minimum thickness of the screed must be 30 millimeters in each point of the surface.

The installation beacons ↑

Properly install beacons
Perfectly set lighthouses - the success of the device ties

no less responsible is the process of installing beacons.At its core is made installation of rails, which are exposed in accordance with the zero level.As most lighthouses are taken T-shaped guide specifically designed to perform such types of work, or U-shaped profile.

It is worth to focus on that cement floor with his hands is a "wet" process.It is for this reason is unacceptable to use chocks under the beacons pieces of cardboard, fiberboard, wood or other material of the unstable moisture.The fact that the use of such materials can lead to the eventual destruction of the screed in place of installation of beacons.Ideally, you need to use plastic or metal plates.Do not use the timber as a guide.

All guides are set parallel to each other.The distance between the outer rails and the wall is 20 centimeters, and the adjacent beacons should be located at a distance less than the length of the rule of 30-40 centimeters.In a handful of cement stacked parallel rails, and imposed on them a long line-level and is equal to the guide on it.

Likewise exposed profiles in terms of using screws.But for this you need to pre-drill holes and drive plugs in the floor slab.In the same case, when preference is given to fixation of lighthouses with a cement mixture, the beginning of implementation of the screed should be postponed until such time has not yet strengthened rails.

Cooking mortar ↑

Mortar screed preparing yourself with the observed ratio of 1: 3, where 1 part cement 3 parts sand falls.Although at the moment the market is replete with modern ready-made mixtures, which are prepared in accordance with the instructions attached to it.In any case, first a dry mixture of a trowel or spatula thoroughly mixed.

then in a container for preparing the solution is poured into water, and it gradually introduces the dry mixture.By using this special nozzle and drill performed constant stirring until the vessel is not a homogeneous mass of required consistency.As they say: "It must be like a thick sour cream."And in the case of cement-sand mortar homemade his willingness to be verified as follows: fist compressed lump of ready mix: if it does not spread and does not break, it means that everything is in order.

inadmissibility of the use of conventional river sand without pre treatment.

Depending on the availability of funds can be added to a mixture of plasticizer, which will help minimize the appearance of cracks.As is known, plasticizer - a substance that imparts a solution of fluidity, elasticity and plasticity.

ties Laying his hands ↑

Technique concrete screed
sand-cement mixture align rule, it rests on the rails and moves along them
  1. cement-sand screed in the initial stage is always laid at the corner opposite the exit from the premises.
  2. Cash solution matched either with a trowel and then contracted by the rule to the exit.
  3. alignment is performed strictly according to the beacons, and thus it is necessary to provide a specified location when the evenness of the floor surface.
  4. At the heart of the art of contraction are small oval motion rule.We can say that the equalization principle is similar to the process of smoothing the walls.

Exposure concrete screed ↑

As a rule, the term drying screed lasts about 3 weeks.It is very important during this time to moisturize regularly tie with a roller, and then the cover film.These conditions will allow adequate time to cure screed and to avoid further cracking.

Attention!It is important to ensure that no draft in the room!

final stage - finishing layer ↑

Capacity for solution
solution for topcoat, as for all layers of the subfloor to be performed strictly according to the appended to the material instructions

need for finishing screed occurs when the supposed floor finish flexiblefloor coverings, such as carpet or linoleum everyone's favorite.Produced such coupler technology with self-leveling floor, for this as well, there are special premixed eminent manufacturers - Bergauf, IVSIL, Knauf, miners and others.

It is self-leveling mixture used in preparing the surface for laying tiles.As commercially available materials designed to perform the covering, the thickness of which does not exceed 5 centimeters.They are characterized by a special reinforcing microfibers, which means that such a process as reinforcement ties can be omitted.That is the correct choice of material for the finishing screed depends on its cost.

to perform such work must first be evenly primed cement-concrete floor.Then, according to the manufacturer's instructions for self-leveling mixture is diluted and poured on the floor.And to create the surface was perfectly flat, it is possible the use of a roller or trowel in problem areas.In principle, all - after a day on such a floor can safely walk.Here, as at drying is important to maintain a certain atmosphere in the room.Especially it is necessary to ensure that there were no drafts.

Video: concrete screed with their hands ↑