UA72218C2 - Support of a floating plate sound insulation - Google Patents

Abstract

This invention is used in building, in particular it is related to the support intended for acoustic insulation of a floating plate. The support includes glass-fiber covering. To simplify the technology of implementation of heat insulation, on the surface of the glass-fiber layer a plastic film is fixed.

Description

directly after the last stage of production of fiberglass coating, for example, according to the technology of production of multilayer cardboard. The plastic film, which is in a roll, is rolled over the canvas, which is on the coating, which comes out of the foam after soldering the binder and combined with the fiberglass coating after passing the rollers for applying glue or after spraying the glue on the fiberglass coating.

According to the invention, the fiberglass coating is produced by the usual technology, the so-called dry method, and it has an acceptable thickness of 5 to 10 mm, and preferably about 7 mm.

For the best performance according to the invention, the weight of the fiberglass coating ranges from 350 to 500g/m2 and the best is about 450g/m".

Experiments have shown that such a fiberglass coating is fully adapted to be connected to the substrate for sound insulation of floating plates. On the one hand, the substrate, according to the invention, is resistant to compression not only immediately after the manufacture of the movable casing, but also during time. According to the invention, the substrate has quite satisfactory soundproofing characteristics from the point of view of the passage of sound waves.

Tests carried out in laboratory conditions according to the standard IBZO (international organization of standards) 140, which refers to measurement methods, showed the acoustic results of the product according to the invention, such that the values

AMm (difference in sound power levels), defined in the IZO717 standard, was 28dB. In addition, such a substrate, according to the invention, has a smaller thickness compared to products that are usually used and that provide similar, comparable sound insulation, which leads to savings in materials for the manufacture of a floating plate, the thickness of which must be proportional to the thickness of the casing that separates it from a reinforced concrete slab.

In one variant of the embodiment of the invention, the fiberglass coating has perforation along the length and on the opposite surface in relation to the one connected to the plastic film. Such perforation is performed for the possibility of further bending of the substrate along the lines formed by the perforation. Such perforation can be made on the entire thickness of the fiberglass coating or partially on the thickness; in the first case, bending is very simple, since it is a question of simply bending the film that holds the parts of the coating that were separated after perforation, but remained connected due to the presence of this film. In the second case, bending is carried out in a more complicated way, because there is a part of the thickness of the coating that has not been disturbed, but before bending the substrate retains greater integrity.

It is advisable to perform such bending along the edges of the substrate, and it is advisable to perform perforation on both sides in such a way that the bent part(s) rests on the partition after laying the substrate to form a fastening strip. The lining described in this way, according to the invention, will allow simultaneous covering of the floor and part of the base of the partitions.

It is also advisable to perforate in place to perform the fastening strips and, on the other hand, the installation of these various elements is greatly simplified compared to existing technologies. In fact, it is possible to carry out such perforation in factory conditions, for example, directly after the production of the substrate, that is, after the connection of the coating and the plastic film, which also allows you to determine the depth of perforation very accurately.

In addition, according to the invention, in the case of fastening strips, the lining allows, as indicated above, to cover the floor simultaneously with a sound-insulating material and a material that ensures tightness between this insulating material and the movable plate.

According to the invention, the substrate may contain at least one adhesive strip partially attached to at least one side of the plastic film, leaving a usable portion of said adhesive strip. The expression "remain usable" means that one part of the adhesive zone is protected and can subsequently be attached to another substrate.

It is desirable that the adhesive strip is glued to the substrate so that it does not go beyond its edges, so that the part that is not glued does not contribute to possible separation.

This adhesive strip will allow the operator to fasten one substrate to another when laying the substrate, ensuring complete tightness at the joints. In fact, depending on the size of the floor, | which needs to be closed, it may be necessary to use, according to the invention, several substrates having a limited width, which means to ensure the connection between these substrates. The presence of an adhesive strip allows, thus, according to the invention, to cover two substrates, and the second one is inserted between the first substrate and the adhesive strip partially fixed on the first substrate. In this way, you can lay a second pad that acts as a stop for the bonding area, and then attach the adhesive strip to the second pad so that it does not move out of place. The adhesive strip thus ensures the tightness of the connection area between the two substrates.

According to the invention, the substrate can also have inscriptions that allow two substrates to be placed in relation to each other. It is possible to foresee the presence of inscriptions or schematic images directly on the plastic film, which is the outer surface of the substrate when laying IT on the floor, for example, to ensure parallelism of both substrates.

According to the invention, the described substrate allows to simplify the operations of laying insulating material and airtight material on the one hand on the floor, and on the other hand as a covering of parts of the base of the partitions to make a floating plate or casing.

According to the invention, the substrate has other advantages; the small thickness of the fiberglass coating and the flexibility of the plastic film allow you to present the substrate in the form of a roll. This is another simplification when delivering the product to the construction site, as the procedure for rolling out the roll is very simple. In addition, the transportation and manipulation of rolls is much easier than with products that have the form of panels or slabs.

Other possible details and features of the invention will be described below on the example of the substrate with reference to the drawings, which show:

Fig. 1, a schematic side view in section of a substrate according to the invention,

Fig. 2, top view of Fig. 1,

Fig. 3, a schematic view of the combination of two substrates according to the invention,

Fig. 4, a schematic perspective view in section of a floating plate.

The various figures are not presented sequentially in order to simplify the understanding of the invention. Figure 1 shows a side view of the substrate 1 according to the invention. It consists of a fiberglass coating 2, on which a polyethylene film 3 is glued over the entire area. The fiberglass coating was made in accordance with. technologies of the dry method. This technology consists in turning a mixture of glass-convertible oxides, mixed in advance, into a fiber by means of aerodynamic stretching. The fibers are collected on the accompanying web in the form of unbonded fibers, to which a binder is added, which creates a mesh substance when heated and, if necessary, to strengthen the longitudinal fiber. Collected in this way, the coating is placed in the oven to form a grid with the help of a binder. At the end of this long manufacturing process, a polyethylene film 3 can be added to the fiberglass covering 2 as previously indicated. This film is about 150 microns thick and is in a roll that is unwound over the passing fiberglass covering 2 and glued to the upper surface of the covering with an adhesive. Vob5iikK TpegtogevaYi

A/g460, which is applied to the film by "spraying". It is also possible to perform substrate 1 in a continuous manner, which will only lengthen the fiberglass coating production line.

If the inscriptions on the polyethylene film C are necessary during installation, they are also applied during this procedure.

The adhesive strip 4 is also partially glued to the polyethylene film C automatically immediately after the assembly of the combination of fiberglass coating 2 - polyethylene film 3. Fig. 2 more clearly shows the method by which this adhesive strip 4 is strengthened; it covers one edge of the substrate 1 along its entire length, aligning the edge, but not going beyond the limits. This execution allows, especially when the substrate is rolled up or simply in operation, to eliminate the risk of accidental separation of this adhesive strip 4, leaving it partially free. The free part of this adhesive strip 4 is covered with a protective film that the operator can remove like a skin when he needs to use this part of the adhesive strip 4 to connect two substrates 1 to each other.

During the production process of the substrate 1, the perforation 5 can also be applied in a continuous manner.

In Fig. 1, such perforation is made on part of the thickness so that the fiberglass coating retains its integrity.

Perforation 5 creates lines that, when placing the substrate 1 on the floor, allow bending, just to form the fastening strips that will cover the lower parts of the partitions.

Such perforation is performed in the transverse direction at regular intervals, which allows bending in another direction to perform fastening strips to the partitions located perpendicular to the previous ones.

Fig. 3 shows the installation of two substrates 1 along their length. When stacking, the operator will partially overlap one substrate 1 on the other in such a way that the adhesive strip 4, initially fixed on one of the substrates, covers the second substrate 1 and can be combined with its polyethylene film 3. This overlap causes a slight compression of both substrates, which is maintained, while they are held by a sticky film 4. Fig. 4 clearly shows that after the installation of both substrates 1, the adhesive strip 4 allows to guarantee full tightness at the joint.

To make the product easy to install and transport, it is provided to the user in the form of rolls, the weight of which should not exceed more than 25 kg for an unfolded substrate with a length of 3 m and more and a width of 1.25 m.

Fig. 4 shows a view of the execution and installation of the floating plate in section. On the reinforced concrete slab 6, which has a partition 7 at the edges, the operator must lay a substrate 1, which, according to the invention, has a fiberglass coating 2 and a polyethylene film 3, which ensures tightness. At the level of the partitions 7, the substrate 1 is folded in such a way as to cover the lower part of the mentioned partitions according to the fold lines 8, which coincide with the perforation 5. This perforation is made so that the fastening strips are higher than the level of the floating plate being executed. The movable plate or casing 9 is then performed without the risk of damage to the fiberglass coating 2, which is protected from moisture by a polyethylene film 3. On top of the floating plate 9, the facing material 10 and plinths 11 can then be laid.

When laying the substrate 1, according to the invention, it is also possible to perform a very effective and easy-to-implement sealing of the corners formed by two partitions. In fact, it happens that at the corner level, the operator separates a square piece of fiberglass coating with the help of a cutting tool, without cutting the polyethylene film A square piece of fiberglass is very easy to separate from the plastic wrap. This modification allows you to bend the two parts of the substrate 1 to make two mutually perpendicular fastening strips without material residue, if we have in mind the fiberglass coating, and, on the contrary, keeping the residue of polyethylene film, which does not interfere, but, on the contrary, guarantees tightness in this area, in which the application of conventional technologies is often difficult to implement to achieve equivalent results.

The substrate described in this way allows, according to the invention, to perform sound insulation in the optimal time, in a simplified way and faster than when using known technologies.

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