SU814989A1 - Method of producing heat-insulating constructional structures - Google Patents

Description

Union of Soviet

Socialist

Republic (I) 814989

State Mopet

USSR is not about inventions and discoveries

ABOUT JOHN

Inventions

TO AUTHOR'S CERTIFICATE (61) Additional to author. certificate-wu - (22) Declared May 28, 79 (21) 2770664 / 29-33 with the addition of application No. (23) Priority Posted on 03/23/81. Bulletin No. 11

Date of publication of the description 03/23/81 (72) Authors of the invention

L.P. Timofeenko and N. F. Nesen (71) Applicant (51) M. Cl. ³

From 04 To 39/00

C 04 B 43/00 (53) UDC691: 699.

.844 (088.8)

Repair and construction work management '' Kievremstroy (54) METHOD FOR PRODUCING SOUND INSULATION CONSTRUCTION CONSTRUCTIONS The invention relates to construction production and can be used in the construction and overhaul of buildings and structures, whose enclosing structures are subject to increased requirements for heat and sound insulation ⁵ , as well as in other industries, including transport, shipbuilding, etc.

.10

A known method of improving the sound insulation of structures by laying on the structure of the coating in the form of plates or tiles made of cast stone, ceramic or similar material. Tiles or plas- _{) 5} tins are applied using cement. 'solution containing additives, such as methyl cellulose or polyvinyl alcohol, which reduce the thickness of the applied solution. The solution is applied after application — jq to the other side of the fencing coating, consisting of latex, splint resistant synthetic rubber, for example, neoprene tl].

The disadvantages of this method are the complexity and duration of the coating process on both sterons of structures, the high cost of the components, in addition, the known method does not allow to achieve a significant increase in sound insulation in the low frequency region and does not increase the thermal insulation properties of structures.

Closest to the proposed invention is a method of manufacturing soundproofing structures, including laying on a concrete base an elastic-viscous layer and a roll of clean floor material, mainly linoleum on a heat and sound insulated lining. As an elastic-viscous layer, a mastic layer based on bitumen or a similar to bitumen-based high-polymer plastics with various fillers based on polyvinyl chloride, polypropylene, polyvinyl acetate, or flat sheets is used. An elastic-viscous layer can be applied to the base structure by gluing, spraying, spatula and other known methods. To increase the loss coefficient in the control.

go-viscous layer is introduced light filler [2 J.

The disadvantage of this method is the low thermal resistance of the coating and low sound insulation from airborne noise at low frequencies. This is due to the fact that in the known method, an insulating elastic-viscous layer is laid directly on the base. Owing to a small difference in the coefficient of thermal conductivity and the decrement of attenuation — the layers of heat and sound insulation will be low. It is determined mainly by the insulating properties of the liner of the insulating linoleum. During operation, linoleum ages and degrades its properties. When using cold linoleum, the required isolation at low frequencies is not provided. In addition, due to the large thicknesses of the viscoelastic material, compared with the thickness of the roll coating, there is an overrun of expensive material, which increases the cost of the structure.

Nel invention - improving the heat and sound insulation properties of structures.

This goal is achieved by the fact that in the method of manufacturing soundproof building structures, including laying an elastic-viscous layer and a roll of material on a concrete base, a primer is first applied to the concrete base, then the roll material, the elastic-viscous layer and the roll material are successively laid, the thickness being elastic-viscous layer exceeds the thickness of the rolled material by 2-4 times, after which the laid layers are subjected to compaction under a pressure of 0.2-2 kg / cm ^.

Moreover, polymer films are used as the roll material.

The coating layers are heated to 80-100 ° C before compaction.

The method is as follows.

A soil layer, for example, based on epoxy resin, is applied to a carefully cleaned surface of the structure, then a layer of rolled material, for example, sheets of religious or aluminum foil, and then an elastic-viscous material is applied, for example, on a bitumen or asphalt base with fillers 2-4 thick times the thickness of the web material, and then the web material is laid again. After that produce heating to 80-100 ° C and compaction of the layers at a pressure of 0.2-2.0 kg / cm ² .

Relin, ruberoid, building cardboard, linoleum, metal film, foil, polymer film and others are used as sheet material. And as an elastic-viscous layer, in addition to bituminous and asphalt mastics, various vibro-damping may be used — 10 to 10 tics produced by industry, as well as various combinations of polysiloxane, out compounds with other polymers.

To reduce the shear modulus of the elastic-viscous material ‘, plasticizing additives can be introduced into it 15.

When implementing the proposed method, the sound insulation of structures is increased by increasing the dynamic loss modulus, i.e. values of V E (where 2 ° # is the loss coefficient, E is Young's modulus). With sufficient adhesion of the outer layer of the coating of the structure, its transverse vibrational velocity practically does not change in thickness and the entire fence 25 undergoes bending vibrations as a whole under the action of the sound wave, since the thickness of the coating is many times smaller than the length of the longitudinal sound wave in it. Approximately, the increase in sound insulation of the structure in the low-frequency region due to the application of the proposed vibration damping coating can be expressed by the well-known formula ^ ^ ₉ £ ^, where are the loss coefficient and bending stiffness of the structure * _40, on which the vibration-damping coating is applied; ^ g-too, vibration damping coating.

It follows that the additional soundproofing value '/ design proportional coefficient and flexural rigidity coefficient coating ⁴⁵ losses. For building structures characterized by a relatively large thickness, the coating thickness is much less than the thickness of the structure. tion, so when bending vibrations, op mechanism ⁵⁰ redelyayuschih passage of sound energy through the structure, a hypothesis is performed planar sections, i.e. the area of soundproofing is also extended to low frequencies. An increase in the sound insulation of a structure also occurs due to a decrease in the emissivity of sound by the flexible outer coating layer, which is allocated from the other layer to the thickness of the elastic-viscous material. The thermal resistance of the coating is also increased due to the presence of layers of sheet material separated by a layer of elastic-viscous material. 5

Example 1. On a carefully cleaned surface of the structure, a soil layer based on epoxy resin 1 mm thick is applied. Strips of flexible sheet material (Religion) are cleaned of dust, 10 are degreased, coated with glue and glued to the surface with an overlap. Then the layer of religion is covered with a layer of mastic on a bituminous base with a thickness equal to the 3rd thickness of religion, after which 15 strips of religion prepared in the same way are glued to it. After that, the layers are heated to 85 ° C and compacted for 15 min at a pressure of 1 kgf / cm ^g /

Example 2. After the manufacture of 20 gypsum concrete panels by a known method, for example, by rolling, one of them is installed in an inclined position on the inclined faces of the cassette, its inner surface is cleaned, and a thin film of a bitumen emulsion primer is applied over 25 of its entire area. After that, sheets of insula are laid on it, on which a layer of elastic-viscous material - mastics on bitumen emulsion-zosii is applied, and then isop is again laid. After that, the laid ’layers are compacted at a pressure of 1.5 kgf / cm ^ for 12 minutes. Then the second gypsum concrete panel is installed closely, the inner surface of which is preliminarily coated with an adhesive composition and glued to the first one.

The proposed method provides an increase in sound insulation by 8-12 dB, lower construction costs, as well as the ability to manufacture soundproof coatings in the factory, does not require special equipment. It can easily be implemented without significant labor and funds both during construction and overhaul of buildings

Claims (3)

(54) METHOD OF MANUFACTURING SOUND-INSULATING CONSTRUCTION STRUCTURES 38 by gluing, spraying, spatula and other known methods. To increase the loss factor in the elastic. a light layer is introduced into the 2J lightweight filler. The disadvantage of this method is the low thermal resistance of the coating and low sound insulation from airborne noise in the low frequency range. This is because in the known method the insulating elastic-viscous layer is laid directly on the substrate. Due to a small difference in the thermal conductivity and damping coefficient of either layer, the sound insulation will be low. It is mainly determined by the insulating properties of the insulating linoleum lining. During operation, linoleum ages and degrades its properties. When using cold linoleum, the required insulation at Low frequencies is not provided. In addition to Torot, due to the large total elastic material, compared with the thickness of the roll coating, there is an overrun of expensive material, which increases the cost of construction. The purpose of the invention is to improve the heat and sound insulation properties of structures. The goal is achieved by the fact that in the method of making sound insulating building structures, including laying an elastic layer and a coiled material on a concrete base, a primer is applied to the concrete base, then the coiled material, the cohesive material and the coiled material are successively laid moreover, the thickness of the elastic-viscous layer exceeds the thickness of the rolled material by 2-4 times, after which the laid layers are subjected to compaction under a pressure of 0.2-2 kg / cm. Moreover, polymeric films are used as the roll material. Coating layers before compaction of heaters to 80-100 ° C. The method is carried out as follows. A layer of soil, for example, based on epoxy resin, then a layer of web material, for example, reel sheets or aluminum foil, is applied to a thoroughly cleaned surface of the structure, and then an elastically viscous material, for example, on a bitumen or asphalt base, is applied. 2-4 times greater than the thickness of the rolled material, and then re-lay the raw material. After E1X) GO, 9 are heated to 80-10 ° C and the layers are compacted at a pressure of 0.2-2.0 kg / cm. Relin, roofing material, paperboard, linoleum, metal film, foil, polymer films, etc. are used as a sheet material. Besides vibrant-damping mastics produced by industry as well as an elastic layer, as well as bituminous and asphalt mastics, can be used. polysiloxane combinations. out compounds with other polymers. To reduce the shear modulus of an elastic-viscous material, plasticizers can be added to it. When implementing the proposed method, the sound insulation of structures increases due to an increase in the dynamic loss modulus, i.e. E values (where 2 is the loss coefficient, E is Young's modulus). With sufficient adhesion of the outer layer of the coating of the structure, its transverse oscillatory velocity practically does not vary in thickness and the entire enclosure performs flexural vibrations under the action of the sound wave as a whole, since the thickness of the coating is many times smaller than the length of the longitudinal sound wave in it. An approximate increase in the sound insulation of an NII design in the low-frequency region due to the application of the proposed vibration-damping coating on it can be expressed by the well-known formula ,,., Oi, (J, where 2. i is the loss factor and flexural rigidity of the structure to which the coating is applied; V - ™ ® vibration-damping coating. It follows that the additional sound insulation / construction is proportional to the flexural rigidity and coefficient (} to the coefficient of coating loss. For building structures that characterize xc is relatively large, the thickness of the coating is much less than the thickness of the structure, therefore, with bending oscillations, the mechanism for the passage of sound energy through the structure is determined, the hypothesis of flat sections is fulfilled, i.e., the sound insulation enhancement area is also extended to low frequencies. the construction also occurs due to the reduction of the sound emission coefficient by the flexible outer layer of the coating, referred from the other layer 5 to the thickness of the elastic-viscous material. The covers are also accentuated by the presence of layers of sheet material separated by a layer of elastic material. Example. A layer of soil based on epoxy resin with a thickness of 1 mm is applied to a thoroughly cleaned surface of the structure. Strips of flexible sheet material (Relin) are cleaned of dust, degreased, covered with glue and glued to the surface with an overlap. Then a layer of hemilin is coated with a layer of mastic on a bitumen base with a thickness equal to the 3rd thickness of hellin, after which I stick to it bands of hemilus prepared in the same way. After that, they are heated to layers and compacted for 15 minutes at a pressure of 1 kgf / cm. Example 2. After the gypsum-concrete panels were manufactured using a well-known cnocot, for example, by rolling, one of them. install in an inclined position on the inclined edges of the cassette, smooth out its inner surface and apply a thin film of a bitumen emulsion primer over its entire area. After that, sheets of Isola are placed on it, onto which a layer of elastic-viscous material, a mastic on a bitumen emulsion, is applied, and then re-laid from l. After this, the layers are compacted at a pressure of 1.5 kgf / cm for 12 minutes. Then, a second gypsum-concrete panel is installed closely, the inner surface of which is pre-coated with an adhesive composition and glued to it with the first one. The proposed method provides an increase in sound insulation by 8–12 dB, a reduction in the cost of construction, as well as the possibility of producing a sound insulation coating in the factory, does not require special equipment. It can easily be implemented without significant expenditures of labor and funds both in the construction and in the overhaul of buildings. Invention 1, Method of manufacturing SOUND-IMPROVING 7. of building structures, including laying an elastic-viscous layer and a roll material on the concrete base, characterized in that, in order to improve the heat and sound insulation properties of the structures, a primer is applied to the concrete base, then the coiled material is subsequently laid - a viscous layer and a rolled material, and the thickness of the elastic layer exceeds the thickness of the rolled material by 2-4 times, after which the laid layers are subjected to compaction under a pressure of 0.2-2 kg / cm. 2. The method according to claim 1, in which it is applied so that polymeric lenki are used as the coiled material. 3. The method according to Clause 1, of which there are. that the coating layers are heated to 80-1OO ° C before compaction. Sources of information taken into account in the examination 1. Patent VepicoO} in the flow number 155513O, l. E1A, 13.11.67. 2, USSR Author's Certificate 432111, cl. C O4 B 43 / OO, 1972.