WO2000026485A1 - Acoustic insulating material and floating floor provided with such material - Google Patents

Acoustic insulating material and floating floor provided with such material Download PDF

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Publication number
WO2000026485A1
WO2000026485A1 PCT/BE1999/000140 BE9900140W WO0026485A1 WO 2000026485 A1 WO2000026485 A1 WO 2000026485A1 BE 9900140 W BE9900140 W BE 9900140W WO 0026485 A1 WO0026485 A1 WO 0026485A1
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WO
WIPO (PCT)
Prior art keywords
floor
underlay
sprung
load
covering
Prior art date
Application number
PCT/BE1999/000140
Other languages
French (fr)
Inventor
Ludovic Molenaers
Original Assignee
Ludovic Molenaers
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ludovic Molenaers filed Critical Ludovic Molenaers
Priority to AU13673/00A priority Critical patent/AU1367300A/en
Publication of WO2000026485A1 publication Critical patent/WO2000026485A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/04—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/04—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B13/12—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2375/00—Polyureas; Polyurethanes

Definitions

  • the present invention concerns an acoustic insulating material with a filler which is mainly made of granules of a sound-deadening component, mixed with a binding agent, such that an almost coherent mass is formed.
  • such an acoustic insulating material which consists of a mixture of rubber granules as a sound-deadening component and bitumen as a binding agent.
  • This known insulating material is disadvantageous among others in that its manufacturing is very time-consuming and laborious and in that a drying time of at least 4 to 5 days must be provided before any further processing is possible.
  • the invention aims an acoustic insulating material which does not have these disadvantages and which moreover has considerably better acoustic qualities.
  • said binding agent used in the acoustic material according to the invention is made on the basis of polyurethane, and it preferably consists of polyurethane glue.
  • the volume of binding agent is comprised between 0.5 vol% and 20 vol%, in particular between 1 vol% and 8 vol%, and more in particular this volume is almost equal to 2.5 vol%.
  • the invention also concerns a sound-deadening and/or vibration-isolating sprung floor which is to be provided on a load-bearing floor and which mainly consists of a covering floor upon which is provided an underlay of the acoustic insulating material concerned, designed to rest on said load-bearing floor.
  • This sprung floor has as a major characteristic that said underlay is almost entirely made of the acoustic material according to the invention.
  • said underlay has a thickness between 0.5 and 3.5 cm, in particular between 1 and 3 cm, and more in particular it has a thickness of almost 2 cm.
  • said covering floor has a thickness between 3 and 10 cm, preferably between 4.5 and 7.5 cm, and it consists of a hardened composition of mainly sand and cement, known as such.
  • the invention also concerns a method for manufacturing a sound-insulating sprung floor with a covering floor having an underlay, provided on a load-bearing floor, which is separated from walls connected to the load-bearing floor.
  • Figure 1 represents a schematic cross section of a part of a load-bearing floor with a sprung floor according to a first embodiment of the invention.
  • Figure 2 represents a schematic cross section of a part of a load-bearing floor with a sprung floor according to a second embodiment of the invention.
  • the acoustic insulating material according to the invention is composed of granulates of a sound-deadening component which forms a filler and which is mixed with a binding agent on the basis of polyurethane so as to form an almost coherent mass.
  • this granulated material consists of an elastomer with good vibration-isolating and sound-deadening qualities.
  • rubber granulates are used for this elastomer.
  • a suitable binding agent is for example what is called the water-resistant 1 -component polyurethane glue of the company Prefecta International, which is marketed under the brand name "PU50 konstruktielijm".
  • This glue is prepared on the basis of a polyurethane prepolymer, and it hardens under the influence of the moisture which is for example found in the surrounding atmosphere.
  • this polyurethane glue offers the advantage that it can be easily mixed with rubber granulates without requiring any special precautions, among others as far as the used mixer and such are concerned.
  • this glue compared to binding agents used according to the present state of the art, requires a very short drying time in the order of magnitude of eight hours.
  • the amount of binding agent is such that the granules of the granulated material are practically entirely surrounded by a thin film thereof, such that a considerable air-space ratio can be maintained between the granules.
  • This air-space ratio strongly depends on the amount of binding agent used and on the grain size of the filler.
  • the amount of binding agent is comprised between 0.5 vol% and 20 vol%, and the granules of the filler have an average diameter between 0.5 mm and 20 mm, and in particular between 4 mm and 7 mm.
  • a very good acoustic insulating material is obtained when the amount of binding agent is comprised between 1 vol% and 8 vol%, in particular when it is practically equal to 2.5 voi%.
  • the insulating material is prepared by intensely mixing some 0.25 litres of the above-mentioned polyurethane glue with 10 litres of rubber granulates.
  • the binding agent hardens, a somewhat elastic three- dimensional network is formed in which the granules of the granulated material are retained. As a result, the propagation of vibrations and sound between the granules is strongly damped or absorbed. Moreover, the binding agent has a relatively restricted affinity for the granulated material, such that there is a rather weak bond between the granules of the granulated material and the above-mentioned network, so that the propagation of sound or vibrations between this network and the granules is also very restricted.
  • the glue can be very easily and quickly mixed with the granulated material in a homogenous manner, whereby the above-mentioned thin film is automatically formed around practically every granule thereof.
  • the acoustic insulating material according to the invention which is manufactured with such a binding agent on the basis of polyurethane, it was found that an acoustic damping of about 7dB is obtained for impact sound with a frequency in the order of magnitude of 100Hz, varying to a damping of some 48 dB for impact sound having a frequency in the order of magnitude of 3000 Hz.
  • the invention also concerns a sound-deadening and/or vibration-isolating sprung floor.
  • the accompanying figures schematically represent such a floor 1.
  • This sprung floor 1 must be provided on a load- bearing floor 2 between two spaces 3 and 4, situated one on top of the other and surrounded by walls 7, and it contains a covering floor 5 resting on an underlay 6 which does not have any direct contact with said load-bearing floor 2 or with the walls 7.
  • the underlay 6 consists of the above-mentioned acoustic insulating material according to the invention.
  • This insulating material rests on the load-bearing floor 2 and has a thickness comprised between 0.5 and 3.5 cm, in particular between 1 and 3 cm.
  • the underlay 6 has a thickness of almost 2 cm.
  • the underlay 6 is separated from the walls 7 and from pipes which possibly extend through this floor 2 by means of a standing strip 8 made of a vibration-isolating material such as for example polyethylene foam.
  • This strip 8 extends as of the load-bearing floor 2, preferably up to above the covering floor 5, and it has a thickness in the order of magnitude of 1 cm.
  • an impermeable foil 9 is provided on said underlay 6 which prevents moisture coming from the covering floor 5 from penetrating in the underlay 6 when the sprung floor 1 is manufactured.
  • This foil is for example a polyethylene foil having a thickness of 0.1 mm, and it is folded up against the walls 7 on the edges of the floor.
  • the covering floor 5 consists of a hardened composition of mainly sand and cement, as is generally known for making fixed floors.
  • the covering floor 5 is made for example of a mixture containing 250 kg cement, 32.5 m 3 rough river sand and an appropriate amount of water. Possibly, granules of an insulating material can be processed in the covering floor.
  • a metal spot-welded wire netting (which is not represented in the figures) with meshes of 38 mm and a wire thickness of 1 mm is preferably inserted in the covering floor 5 before it hardens, so that a reinforced floor with a volume mass of some 2000 kg/m 3 is obtained after the hardening of said covering floor 5.
  • This covering floor 5 extends up to under the top edge of the above-mentioned standing strip 8, so that, consequently, there is no contact between the standing walls 7 and the covering floor 5.
  • the covering floor 5 has a thickness between 3 and 10 cm, and preferably between 4.5 and 7, 5 cm.
  • An ideal thickness is for example 5 cm. Depending on the expected load of the floor, this thickness may possibly be adjusted.
  • the sprung floor 1 comprises a covering floor 5 in the shape of a rigid plate whose perimeter is practically entirely enclosed by said standing strip 8, and an underlay 6 made of sound-deadening material, whereby the whole rests on the fixed load- bearing floor 2.
  • Figure 2 represents a second embodiment of the sprung floor 1 according to the invention.
  • This embodiment differs from that in figure 1 in that the underlay 6 extends over the load-bearing floor 2 up against the surrounding walls 7, and the above-mentioned standing strip 8 rests on the edges of the underlay 6.
  • a mixture of polyurethane glue and rubber granulates is prepared in a first stage, and this mixture is spread over the load-bearing floor 2 with a constant thickness so as to form said underlay In a second stage, after this mixture has been spread practically homogeneously over the load-bearing floor 2, the formed underlay 6 is made to harden for about eight hours.
  • the standing strip 8 made of a vibration-isolating material, such as for example polyethylene foam, is provided against the walls 7 and around pipes or constructions which may possibly extend through the load-bearing floor 2.
  • an impermeable foil 9 is provided on the underlay. This foil is folded up along said standing strip 8, so that a tub is obtained.
  • the mixture forming said covering floor 5 is prevented from flowing between the underlay 6 and the walls 7, or from making contact with the load-bearing floor 2 and thus causing a propagation of sound and vibrations from the load-bearing floor 2 to the covering floor 5.
  • a damp mixture in the shape of a mortar preferably mainly composed of cement and sand, is spread with a constant thickness in the tub formed by the foil 9 so as to form said covering floor 5.
  • the edge of this covering floor 5 is hereby at least partly enclosed by the standing strip 8 in such a manner that the covering floor 5 is almost entirely isolated from these walls 7 and/or pipes.
  • a reinforcement in the shape of a metal net is provided in this covering floor 5.
  • the thus made sprung floor has a continuous, jointless surface and, after the covering floor 5 has hardened, it can be finished in a manner which is known as such, just as a conventional concrete floor.
  • the invention is not restricted to the specific embodiments of the invention described above and represented in the accompanying drawings; for example, said rubber granules can be replaced by cork granules.
  • said rubber granules can be replaced by cork granules.
  • the covering floor may in some cases consist of one or several prefabricated plates.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Floor Finish (AREA)
  • Building Environments (AREA)

Abstract

The invention concerns an acoustic insulating material with a filler which is mainly made of granules of a sound-deadening component, mixed with a binding agent, such that an almost coherent mass is formed, whereby said binding agent is made on the basis of polyurethane and preferably consists of polyurethane glue. Further, the invention also concerns a sound-insulating sprung floor (1) provided with the above-mentioned insulating material and resting on a load-bearing floor (2), and a method for making such a floor.

Description

ACOUSTIC INSULATING MATERIAL AND FLOAΗNG FLOOR PROVIDED WITH SUCH MATERIAL
The present invention concerns an acoustic insulating material with a filler which is mainly made of granules of a sound-deadening component, mixed with a binding agent, such that an almost coherent mass is formed.
According to the present state of the art, such an acoustic insulating material is known which consists of a mixture of rubber granules as a sound-deadening component and bitumen as a binding agent.
This known insulating material is disadvantageous among others in that its manufacturing is very time-consuming and laborious and in that a drying time of at least 4 to 5 days must be provided before any further processing is possible.
The invention aims an acoustic insulating material which does not have these disadvantages and which moreover has considerably better acoustic qualities.
To this aim, said binding agent used in the acoustic material according to the invention is made on the basis of polyurethane, and it preferably consists of polyurethane glue.
Advantageously, the volume of binding agent is comprised between 0.5 vol% and 20 vol%, in particular between 1 vol% and 8 vol%, and more in particular this volume is almost equal to 2.5 vol%. The invention also concerns a sound-deadening and/or vibration-isolating sprung floor which is to be provided on a load-bearing floor and which mainly consists of a covering floor upon which is provided an underlay of the acoustic insulating material concerned, designed to rest on said load-bearing floor. This sprung floor has as a major characteristic that said underlay is almost entirely made of the acoustic material according to the invention.
According to a specific embodiment of the sprung floor according to the invention, said underlay has a thickness between 0.5 and 3.5 cm, in particular between 1 and 3 cm, and more in particular it has a thickness of almost 2 cm.
According to a preferred embodiment of the sprung floor according to the invention, said covering floor has a thickness between 3 and 10 cm, preferably between 4.5 and 7.5 cm, and it consists of a hardened composition of mainly sand and cement, known as such.
The invention also concerns a method for manufacturing a sound-insulating sprung floor with a covering floor having an underlay, provided on a load-bearing floor, which is separated from walls connected to the load-bearing floor.
Other particularities and advantages of the invention will become clear from the following description of a specific embodiment of the acoustic insulating material, the sprung floor and the method for manufacturing such a floor according to the invention; this description is given as an example only and does not restrict the scope of the claims in any way; the reference figures used hereafter refer to the accompanying drawings.
Figure 1 represents a schematic cross section of a part of a load-bearing floor with a sprung floor according to a first embodiment of the invention.
Figure 2 represents a schematic cross section of a part of a load-bearing floor with a sprung floor according to a second embodiment of the invention.
In both figures, the same reference figures refer to the same or analogous elements. The acoustic insulating material according to the invention is composed of granulates of a sound-deadening component which forms a filler and which is mixed with a binding agent on the basis of polyurethane so as to form an almost coherent mass. In an advantageous manner, this granulated material consists of an elastomer with good vibration-isolating and sound-deadening qualities. Preferably, rubber granulates are used for this elastomer.
An excellent acoustic insulation is obtained when a polyurethane glue is used as a binding agent. A suitable binding agent is for example what is called the water-resistant 1 -component polyurethane glue of the company Prefecta International, which is marketed under the brand name "PU50 konstruktielijm". This glue is prepared on the basis of a polyurethane prepolymer, and it hardens under the influence of the moisture which is for example found in the surrounding atmosphere. Further, this polyurethane glue offers the advantage that it can be easily mixed with rubber granulates without requiring any special precautions, among others as far as the used mixer and such are concerned. Moreover, this glue, compared to binding agents used according to the present state of the art, requires a very short drying time in the order of magnitude of eight hours.
The amount of binding agent is such that the granules of the granulated material are practically entirely surrounded by a thin film thereof, such that a considerable air-space ratio can be maintained between the granules. This air-space ratio strongly depends on the amount of binding agent used and on the grain size of the filler.
Preferably, the amount of binding agent is comprised between 0.5 vol% and 20 vol%, and the granules of the filler have an average diameter between 0.5 mm and 20 mm, and in particular between 4 mm and 7 mm. A very good acoustic insulating material is obtained when the amount of binding agent is comprised between 1 vol% and 8 vol%, in particular when it is practically equal to 2.5 voi%.
In order to obtain such a composition with 2.5 voi% of binding agent, the insulating material is prepared by intensely mixing some 0.25 litres of the above-mentioned polyurethane glue with 10 litres of rubber granulates.
When the binding agent hardens, a somewhat elastic three- dimensional network is formed in which the granules of the granulated material are retained. As a result, the propagation of vibrations and sound between the granules is strongly damped or absorbed. Moreover, the binding agent has a relatively restricted affinity for the granulated material, such that there is a rather weak bond between the granules of the granulated material and the above-mentioned network, so that the propagation of sound or vibrations between this network and the granules is also very restricted.
On the other hand, thanks to the relatively reduced viscosity of the glue, the latter can be very easily and quickly mixed with the granulated material in a homogenous manner, whereby the above-mentioned thin film is automatically formed around practically every granule thereof. When using the acoustic insulating material according to the invention, which is manufactured with such a binding agent on the basis of polyurethane, it was found that an acoustic damping of about 7dB is obtained for impact sound with a frequency in the order of magnitude of 100Hz, varying to a damping of some 48 dB for impact sound having a frequency in the order of magnitude of 3000 Hz.
The invention also concerns a sound-deadening and/or vibration-isolating sprung floor. The accompanying figures schematically represent such a floor 1. This sprung floor 1 must be provided on a load- bearing floor 2 between two spaces 3 and 4, situated one on top of the other and surrounded by walls 7, and it contains a covering floor 5 resting on an underlay 6 which does not have any direct contact with said load-bearing floor 2 or with the walls 7.
According to a first embodiment of the sprung floor 1 , as represented in figure 1 , the underlay 6 consists of the above-mentioned acoustic insulating material according to the invention. This insulating material rests on the load-bearing floor 2 and has a thickness comprised between 0.5 and 3.5 cm, in particular between 1 and 3 cm. In a preferred embodiment of the sprung floor according to the invention, the underlay 6 has a thickness of almost 2 cm. The underlay 6 is separated from the walls 7 and from pipes which possibly extend through this floor 2 by means of a standing strip 8 made of a vibration-isolating material such as for example polyethylene foam. This strip 8 extends as of the load-bearing floor 2, preferably up to above the covering floor 5, and it has a thickness in the order of magnitude of 1 cm.
Further, an impermeable foil 9 is provided on said underlay 6 which prevents moisture coming from the covering floor 5 from penetrating in the underlay 6 when the sprung floor 1 is manufactured.
This foil is for example a polyethylene foil having a thickness of 0.1 mm, and it is folded up against the walls 7 on the edges of the floor.
The covering floor 5 consists of a hardened composition of mainly sand and cement, as is generally known for making fixed floors. Thus, the covering floor 5 is made for example of a mixture containing 250 kg cement, 32.5 m3 rough river sand and an appropriate amount of water. Possibly, granules of an insulating material can be processed in the covering floor.
Further, a metal spot-welded wire netting (which is not represented in the figures) with meshes of 38 mm and a wire thickness of 1 mm is preferably inserted in the covering floor 5 before it hardens, so that a reinforced floor with a volume mass of some 2000 kg/m3 is obtained after the hardening of said covering floor 5. This covering floor 5 extends up to under the top edge of the above-mentioned standing strip 8, so that, consequently, there is no contact between the standing walls 7 and the covering floor 5.
According to an advantageous embodiment, the covering floor 5 has a thickness between 3 and 10 cm, and preferably between 4.5 and 7, 5 cm. An ideal thickness is for example 5 cm. Depending on the expected load of the floor, this thickness may possibly be adjusted.
To sum up, the sprung floor 1 according to the invention comprises a covering floor 5 in the shape of a rigid plate whose perimeter is practically entirely enclosed by said standing strip 8, and an underlay 6 made of sound-deadening material, whereby the whole rests on the fixed load- bearing floor 2.
Measurements have indicated that, after the installation of a sprung floor according to the invention on a conventional load-bearing floor made of concrete, the impact sound transmission was reduced from 61 dB to
53 dB for sound having a frequency of 100 Hz and from 70.2 dB to 22.5 dB for sound having a frequency of some 3000 Hz.
When bitumen is used as a binding agent, the maximum reduction of the sound transmission was only 25 to 30 dB. Figure 2 represents a second embodiment of the sprung floor 1 according to the invention.
This embodiment differs from that in figure 1 in that the underlay 6 extends over the load-bearing floor 2 up against the surrounding walls 7, and the above-mentioned standing strip 8 rests on the edges of the underlay 6.
In the method according to the invention for making a sound- insulating sprung floor 1 with a covering floor 5 provided with an underlay 6 and resting on a load-bearing floor 2, a mixture of polyurethane glue and rubber granulates is prepared in a first stage, and this mixture is spread over the load-bearing floor 2 with a constant thickness so as to form said underlay In a second stage, after this mixture has been spread practically homogeneously over the load-bearing floor 2, the formed underlay 6 is made to harden for about eight hours.
In a third stage of the method according to the invention, the standing strip 8 made of a vibration-isolating material, such as for example polyethylene foam, is provided against the walls 7 and around pipes or constructions which may possibly extend through the load-bearing floor 2.
In a fourth stage, an impermeable foil 9 is provided on the underlay. This foil is folded up along said standing strip 8, so that a tub is obtained. Thus, the mixture forming said covering floor 5 is prevented from flowing between the underlay 6 and the walls 7, or from making contact with the load-bearing floor 2 and thus causing a propagation of sound and vibrations from the load-bearing floor 2 to the covering floor 5.
Finally, in a fifth stage of the method according to the invention, a damp mixture in the shape of a mortar, preferably mainly composed of cement and sand, is spread with a constant thickness in the tub formed by the foil 9 so as to form said covering floor 5. The edge of this covering floor 5 is hereby at least partly enclosed by the standing strip 8 in such a manner that the covering floor 5 is almost entirely isolated from these walls 7 and/or pipes.
In a final stage, a reinforcement in the shape of a metal net is provided in this covering floor 5.
The thus made sprung floor has a continuous, jointless surface and, after the covering floor 5 has hardened, it can be finished in a manner which is known as such, just as a conventional concrete floor.
Naturally, the invention is not restricted to the specific embodiments of the invention described above and represented in the accompanying drawings; for example, said rubber granules can be replaced by cork granules. In certain cases it is possible to omit the above-mentioned foil 9 so as to obtain a simpler construction of the sprung floor. Depending on the load of the floor, it may in some practical cases be unnecessary to provide the above-mentioned reinforcement. Moreover, the covering floor may in some cases consist of one or several prefabricated plates.

Claims

Claims
1. Acoustic insulating material with a filler which is mainly made of granules of a sound-deadening component, mixed with a binding agent, such that an almost coherent mass is formed, characterised in that said binding agent is made on the basis of polyurethane and preferably consists of polyurethane glue.
2. Acoustic insulating material according to claim 1 , characterised in that said filler mainly contains rubber granules.
3. Acoustic insulating material according to claim 1 or 2, characterised in that the amount of binding agent is comprised between 0.5 vol% and 20 vol%.
4. Acoustic insulating material according to any of claims 1 to 3, characterised in that the amount of binding agent is comprised between
1 vol% and 8 vol%, and in particular is almost equal to 2.5 vol%.
5. Acoustic insulating material according to any of claims 1 to 4, characterised in that the granulates of said filler predominantly have a diameter between 0.5 mm and 20 mm, and preferably between 4 mm and 7 mm.
6. Sound-deadening and/or vibration-isolating sprung floor which is to be provided on a load-bearing floor (2) with a covering floor (5) upon which is provided an underlay (6) of acoustic insulating material, designed to rest on said load-bearing floor (2), characterised in that said underlay (6) is almost entirely made of the acoustic material according to any of claims 1 to 5.
7. Sprung floor according to claim 6, characterised in that the above-mentioned underlay (6) has a thickness between 0.5 and 3.5 cm, in particular between 1 and 3 cm, and more in particular has a thickness of some 2 cm.
8. Sprung floor according to claims 6 to 7, characterised in that a foil is provided between said covering floor (5) and said underlay (6), such as for example a polyethylene foil.
9. Sprung floor according to any of claims 6 to 8, characterised in that it is isolated from standing walls and from pipes which may possibly extend through the load-bearing floor (2) by means of a standing strip made of plastic foam, in particular made of polyethylene foam, having a thickness of preferably about 1 cm, and which extends over the entire thickness of the sprung floor up to above said covering floor (5).
10. Sprung floor according to any of claims 6 to 9, characterised in that the above-mentioned covering floor (5) has a thickness between 3 and 10 cm, and preferably between 4.5 and 7.5 cm.
11. Sprung floor according to any of claims 6 to 10, characterised in that the above-mentioned covering floor (5) consists of a hardened composition of mainly sand and cement.
12. Method for making a sound-insulating sprung floor with an underlay (6) and a covering floor (5) which is separated from walls (7) connected to the load-bearing floor (2), and which rests on a load-bearing floor, comprising the following stages : a) Providing a standing strip (8) made of a vibration-isolating material, such as for example polyethylene foam, against walls (7) and around pipes or constructions which may possibly extend through the load- bearing floor (2), in such a manner that the above-mentioned sprung floor (1) to be constructed is practically entirely isolated from these walls (7) and/or pipes; b) Spreading a sound-insulating layer, for example consisting of a mixture of polyurethane glue and rubber granulates, over the above- mentioned load-bearing floor (2) so as to form the above-mentioned underlay (6); c) Letting this underlay (6) harden; d) Possibly providing an impermeable foil (9) on this underlay (6) which is folded up against said walls (7) and/or pipes; e) Providing a covering floor (5) by for example spreading a damp mixture of preferably mainly cement and sand over the underlay (6) so as to form said covering floor, whereby the edge of this covering floor (5) is at least partly enclosed by the above-mentioned standing strip.
PCT/BE1999/000140 1998-11-04 1999-11-04 Acoustic insulating material and floating floor provided with such material WO2000026485A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU13673/00A AU1367300A (en) 1998-11-04 1999-11-04 Acoustic insulating material and floating floor provided with such material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9800795 1998-11-04
BE9800795A BE1013514A6 (en) 1998-11-04 1998-11-04 Acoustic insulation and suspended floor with such material.

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WO2000026485A1 true WO2000026485A1 (en) 2000-05-11

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002048478A1 (en) * 2000-12-11 2002-06-20 Isolcem Italia S.R.L. Soundproof floor-filling structure
EP1898028A1 (en) * 2006-09-07 2008-03-12 Berleburger Schaumstoffwerk GmbH Use of webs or strips from a coated gummi-polyurethane composite
US7861484B2 (en) 2005-03-04 2011-01-04 Pirelli & C. S.P.A. Method for making a sound-insulating load-bearing floor
US7861477B2 (en) 2005-06-10 2011-01-04 Pirelli & C. S.P.A. Method for making a sound-insulating load-bearing floor
EP2458108A1 (en) * 2010-11-24 2012-05-30 Matthias Sommer Cork floor covering
EP1916358A3 (en) * 2006-10-26 2015-09-16 Berleburger Schaumstoffwerk GmbH Use of foils or panels made of rubber polyurethane composite material for noise and vibration isolation
ES2589634A1 (en) * 2015-05-13 2016-11-15 Diagnósticos Y Reparaciones Play, S.L. Procedure for obtaining a constructive material endowed with acoustic insulation and impacts character; constructive material thus obtained; and method of coating a floor using said building material (Machine-translation by Google Translate, not legally binding)
EP3381684A1 (en) * 2017-03-27 2018-10-03 BSW Berleburger Schaumstoffwerk GmbH Elastically bonded pu-fill
CN111849048A (en) * 2020-07-23 2020-10-30 陕西师范大学 Metal powder-rubber particle composite phononic material, preparation method and application

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1015361A3 (en) 2003-02-14 2005-02-01 Velde Carlos Van De Method for producing a floor.

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DE1658448A1 (en) * 1967-06-02 1971-12-16 Deutsch Amerikanische Asphalt Road or floor covering
FR2221465A1 (en) * 1973-03-14 1974-10-11 Bayer Ag Matl. contg. large waste rubber pieces - bonded by cellular elastomer is suitable esp. as floor underlay
US4879143A (en) * 1985-12-06 1989-11-07 Rang Kg Haus Moderner Fussboden Process for the production of floor covering
DE4100581A1 (en) * 1991-01-10 1992-07-16 Kraiburg Gummi SHAPED BODY MADE OF Vulcanized Waste Rubber Material
DE4340478A1 (en) * 1993-11-27 1995-06-01 Dieter Arnds Method and device for producing a sheet-like covering material and use as a floor and wall covering

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1658448A1 (en) * 1967-06-02 1971-12-16 Deutsch Amerikanische Asphalt Road or floor covering
FR2221465A1 (en) * 1973-03-14 1974-10-11 Bayer Ag Matl. contg. large waste rubber pieces - bonded by cellular elastomer is suitable esp. as floor underlay
US4879143A (en) * 1985-12-06 1989-11-07 Rang Kg Haus Moderner Fussboden Process for the production of floor covering
DE4100581A1 (en) * 1991-01-10 1992-07-16 Kraiburg Gummi SHAPED BODY MADE OF Vulcanized Waste Rubber Material
DE4340478A1 (en) * 1993-11-27 1995-06-01 Dieter Arnds Method and device for producing a sheet-like covering material and use as a floor and wall covering

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002048478A1 (en) * 2000-12-11 2002-06-20 Isolcem Italia S.R.L. Soundproof floor-filling structure
US7861484B2 (en) 2005-03-04 2011-01-04 Pirelli & C. S.P.A. Method for making a sound-insulating load-bearing floor
US7861477B2 (en) 2005-06-10 2011-01-04 Pirelli & C. S.P.A. Method for making a sound-insulating load-bearing floor
EP1898028A1 (en) * 2006-09-07 2008-03-12 Berleburger Schaumstoffwerk GmbH Use of webs or strips from a coated gummi-polyurethane composite
EP1916358A3 (en) * 2006-10-26 2015-09-16 Berleburger Schaumstoffwerk GmbH Use of foils or panels made of rubber polyurethane composite material for noise and vibration isolation
EP2458108A1 (en) * 2010-11-24 2012-05-30 Matthias Sommer Cork floor covering
ES2589634A1 (en) * 2015-05-13 2016-11-15 Diagnósticos Y Reparaciones Play, S.L. Procedure for obtaining a constructive material endowed with acoustic insulation and impacts character; constructive material thus obtained; and method of coating a floor using said building material (Machine-translation by Google Translate, not legally binding)
EP3381684A1 (en) * 2017-03-27 2018-10-03 BSW Berleburger Schaumstoffwerk GmbH Elastically bonded pu-fill
CN111849048A (en) * 2020-07-23 2020-10-30 陕西师范大学 Metal powder-rubber particle composite phononic material, preparation method and application
CN111849048B (en) * 2020-07-23 2022-04-12 陕西师范大学 Metal powder-rubber particle composite phononic material, preparation method and application

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