2023 Author: Philip Bishop | [email protected]. Last modified: 2023-08-25 07:54
- Choosing glue or solution
- Slabs or block
- Gypsum block installation technology
- Doorways in the partitions of their tongue-and-groove plates
Today there is a wide variety of building materials from which you can make high-quality and durable partitions in an apartment or a private house. But often the choice of a specific material depends on the type of structure of the building. If the floor is made of reinforced concrete slabs between floors, then it is important to make the interior partitions as light as possible.
The most optimal, from which you can make interior partitions, and lightweight are drywall structures, but today such masonry material as gypsum block and foam block is of considerable interest. Various blocks are a new way to quickly and inexpensively erect partitions in an apartment or a private house, however, nuances arise during work that must be observed without fail. The first step is to consider how to put gypsum blocks on the mortar.
Choosing glue or solution
The first step is to find out what solution is required for laying gypsum blocks. If there is not enough money for special gypsum-based acrylic glue, since it is quite expensive, then you can use ordinary tile glue or cement mortar in a 1: 3 ratio and add PVA glue to it. Thorough stirring results in a very elastic and finely dispersed mixture that can be easily spread with a spatula. Its excess is squeezed out when the unit is installed in place. The mortar is much easier to work with because its setting speed is much slower than gypsum glue, which can only be worked with for the first 60 minutes.
The question often arises: "How to put gypsum blocks on glue?" When it becomes necessary to build a partition. In fact, glue is the best way to build plasterboard partitions. It hardens faster, which allows in just one day to carry out a complete installation with all the necessary communications. And after an hour, the surface can be easily cleaned by any mechanical method, but this is usually not required if tongue-and-groove plates were used.
Slabs or block
Before starting to describe the technology for erecting a partition, you should decide on the choice of the type of material and its advantages. A gypsum wall block is, as a rule, a parallelepiped, ideally straight from all sides, made of a mixture of gypsum, cement and plasticizer. Each product acquires good geometric parameters due to the production technology without the use of high temperatures, as, for example, in the production of foamed gas silicate blocks. But at the same time, gypsum blocks have the best indicators for thermal conductivity and strength. High thermal insulation properties of the material were achieved through the use of sawdust, they also strengthen the structure of the block.
Good strength indicators made it possible to produce tongue-and-groove plates, that is, blocks with a thickness of 8-10 cm and dimensions of 66.7 x 50 cm with a groove and a ridge for docking with each other during installation. This is the main difference between slabs and blocks.
Gypsum tongue-and-groove partitions are ideally flat on both sides and during installation there is a low probability of curvature from the level even by a millimeter.
If we compare in terms of price parameters, then the laying of partitions made of tongue-and-groove plates will cost a little more, because their cost is higher than blocks. But one cannot fail to notice the benefits of working with them. The comb reliably enters the groove and at the same time forms a high-quality connection of all blocks to each other without the slightest deviation in any planes.
The laying of gypsum blocks, although it will cost less, will require more adhesive mixture. It is more difficult to set it on planes, which is fraught with curvature and distortions. The main thing in technology is compliance with the levels, therefore the wall from the block is even and of high quality. But one should take into account the advantage - a wall made of gypsum blocks, as a rule, is thicker and has better strength and sound insulation characteristics. In terms of weight, of course it is heavier, so hollow gypsum blocks can be used as an alternative.
The laying of tongue-and-groove blocks in a private house should be carried out with solid slabs. Because for country houses, the appearance of parasitic insects and mice in the walls is characteristic, which can not only cause environmental troubles, but also destroy the walls themselves.
Gypsum block installation technology
There are several technologies for laying gypsum blocks. Someone prefers to use glue, while others prefer a solution. You can really use both methods, but you only need to fulfill certain conditions. Before considering how to put gypsum blocks on one or another tool, you should familiarize yourself with the general technology for performing a full range of works.
To make it clearer how to lay gypsum blocks, see the photo below.
Interior partitions made of tongue-and-groove slabs must be even and strong. And in order to achieve this, it is necessary to follow the installation technology.
In order for the installation of the tongue-and-groove partition to be of high quality, it is necessary to allow the blocks to get used to the temperature at which it will fit into place. To do this, it is recommended to bring all the material into the room and let it get used to it for at least 1 day. The block, due to the filler in the form of sawdust and plasticizer, slightly expands with increasing temperature, taking on its final shape. Compliance with this condition will eliminate the likelihood of cracks on the next day after the installation of the blocks.
The first step is to apply markings for the installation site of the partition. Here you can use both a regular tape measure, a plumb line and a long level, and a laser device. When performing large-scale work, it is advisable and much faster to use a laser level.
Well, at home, when there is nowhere to go and there is no need to rush, it is quite possible to do with the usual tools. The tongue-and-groove partition, as a rule, turns out to be perfectly flat on all sides, therefore, no plaster or plasterboard coating is required. Unless, of course, additional insulation is needed. Therefore, when marking, the masters take this into account and retreat from the original line a distance equal to the thickness of the additional finish.
Installation of tongue-and-groove partitions should be carried out only on a high-quality and conscientiously prepared surface. Therefore, with the help of a broom, brush and other tool, we carefully sweep out the installation site of the partition. Also, the installation of partitions made of tongue-and-groove plates provides for a perfectly flat surface. To obtain this, the mechanically cleaned place is treated with concrete contact (acrylic or any other concrete primer). It is recommended to do this in two layers for better adhesion of the leveling layer.
If the house has reinforced concrete floors, this does not mean that the surface is perfectly flat. In order to properly lay gypsum blocks, deviations should not exceed 3 mm, in other cases the surface must be leveled.
If the leveling layer is very thin, then a self-leveling mixture can be used. To do this, you need to install something like a formwork and fill it with a solution, use a special roller with needles to roll the solution evenly over the entire plane.
If the tongue-and-groove plate partition will be installed on an excessively curved surface, then it can be leveled using a semi-dry screed. To do this, in a ratio of 1: 3, cement of 500 brands and sand sifted through a fine sieve are mixed. Next, water is added and the solution is mixed until a uniformly moist (not wet) mixture is obtained. The process should not be described further, because it is not from this topic. After leveling with a semi-dry screed and its complete drying (1-2 days), the surface must be once again treated with soil (concrete contact). Everything, the surface is ready, you can start installation.
It is necessary to make sure that the partition of the tongue-and-groove plates does not vibrate or resonate, thereby increasing the soundproofing properties of the room. For this, it is necessary to provide a damper layer at the place of contact with the floor and wall. This can be accomplished with a 15 cm wide and 4 mm thick cork backing tape. It compensates for all kinds of fluctuations and the degree of expansion of the partition when the temperature changes.
The tape can be installed with the same adhesive as the boards themselves. To do this, a certain amount of it is diluted, it is better not to mix it with water anymore, because it will still become unusable even before the blocks are laid. Using a spatula, it is spread in a thin layer on the prepared surface, the tape is carefully rolled out and pressed against the base. Let the glue harden for at least 1 hour.
Everything, the damping layer is ready, you can install tongue-and-groove plates for partitions.
For better orientation relative to the level, you can use physical slats, that is, attach the guides to the wall and floor with dowels on both sides of the partition. This will minimize the chance of rejection during installation.
In the next step, we will consider how to properly lay gypsum blocks. For a more reliable fastening of the slabs to each other and for a better geometry of the wall, the slabs must be laid with the groove up. To do this, using an ordinary hand saw, the lower comb is carefully removed. Here it is important to leave the surface perfectly flat, without protrusions, so that it fits snugly on the damper substrate.
The mortar for laying gypsum blocks or glue should be spread with a spatula directly onto the tape, and then onto the blocks. It takes a little, because when joining, the excess will still be squeezed out by the weight of the plate.
The shrinkage of each slab is carried out using a hammer with a rubber pad or through a block until the surfaces are in full contact.
The laying of tongue-and-groove plates should be carried out in a staggered manner or with an offset of each row relative to each other by at least 1/3 of its width. This will make the partition very strong and resistant to any impact.
The device of tongue-and-groove partitions necessarily includes its fastening to the wall and floor using perforated corners. It can be attached to blocks with ordinary wood screws, to the floor and walls using dowels or anchors. Fasteners should be carried out at least every 1 row or block in a row.
The video attached below will be an excellent instruction and clarification to the article.
Doorways in the partitions of their tongue-and-groove plates
The installation of a partition from tongue-and-groove plates cannot do without door or window openings. Moreover, if the height of the partition is no more than 3 m and only 1 row of plates will be laid above the opening up to 80 cm wide, then the jumpers can be omitted. It is enough to make a small half-frame from wooden blocks with the width of the opening and attach it to the plates with self-tapping screws. Next, the next row of blocks is laid with periodic quality control of surfaces using a level.
The installation of tongue-and-groove partitions must be carried out with high quality, therefore the remaining space between the ceiling and the slabs is thoroughly foamed with polyurethane foam. After it dries, small dimples and foam are leveled with the same glue. After 1 hour, the partition is ready for further finishing.
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