EP0728877A1 - Akustisch isolierendes Bauelement und aus solchen Elementen erstellte schalldämmende Wand - Google Patents

Akustisch isolierendes Bauelement und aus solchen Elementen erstellte schalldämmende Wand Download PDF

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Publication number
EP0728877A1
EP0728877A1 EP95400389A EP95400389A EP0728877A1 EP 0728877 A1 EP0728877 A1 EP 0728877A1 EP 95400389 A EP95400389 A EP 95400389A EP 95400389 A EP95400389 A EP 95400389A EP 0728877 A1 EP0728877 A1 EP 0728877A1
Authority
EP
European Patent Office
Prior art keywords
layer
insulation element
layers
element according
acoustic insulation
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP95400389A
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English (en)
French (fr)
Inventor
Bernard Thomassey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SCREG SA
Original Assignee
SCREG SA
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 SCREG SA filed Critical SCREG SA
Priority to EP95400389A priority Critical patent/EP0728877A1/de
Publication of EP0728877A1 publication Critical patent/EP0728877A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B1/86—Sound-absorbing elements slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
    • E01F8/0064—Perforated plate or mesh, e.g. as wall facing
    • E01F8/007—Perforated plate or mesh, e.g. as wall facing with damping material
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B2001/742—Use of special materials; Materials having special structures or shape
    • E04B2001/746—Recycled materials, e.g. made of used tires, bumpers or newspapers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8433—Tray or frame type panels or blocks, with or without acoustical filling with holes in their face
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8452—Tray or frame type panels or blocks, with or without acoustical filling with peripheral frame members

Definitions

  • the present invention relates to an acoustic insulation element as well as to an “anti-noise” wall produced by the assembly of a plurality of such acoustic insulation elements.
  • the object of the invention is to acoustically isolate a first medium from a second noise-generating medium, by absorption of high-frequency noise in particular, and this by simple, effective and inexpensive means.
  • the invention relates to an acoustic insulation element, characterized in that it comprises a parallelepipedal tank having side walls, a bottom and an at least partially open front face, in which is housed a structure with at least three separate layers parallel to the bottom and at least two layers of which are made from recycled material particles, with a middle layer having a density less than that of the two adjacent layers.
  • the invention also relates to an "anti-noise" wall produced by the assembly of a plurality of acoustic insulation elements as defined above.
  • Figures 1 to 3 show a first embodiment of an acoustic insulation element designated by the general reference 1, consisting of a frame 2 containing a structure 3 with three layers, visible only in Figure 2.
  • the element 1 will be described below in its illustrated position, which is that of its manufacture.
  • Frame 2 is a rectangular-shaped tank (Figure 1), for example with a rectangular base, of relatively low height compared to its other dimensions.
  • a first face 4 of this frame or upper face is open, and the opposite face 5 or bottom is full; this bottom is for example made of a thin sheet of stainless steel.
  • the side walls 6 of the frame 2 are produced using four flat sections 7, 8, 9 and 10. These sections are hollow, of rectangular cross section, thus defining empty spaces 11 in each of the walls 6. They are also made of stainless steel.
  • the profiles are, for example, welded together and on the bottom 5 of the frame 2, so as to define an internal volume 12 of the frame whose shape is rectangular with rectangular base.
  • each of the four interior angles of the frame 2 are welded supports 13, substantially one third of the height of this frame from the bottom 5, so as to be able to attach to these supports, by clipping or pinning for example, two dishes 14 and 15. These are thus arranged in the cross of Saint Andrew, parallel to the bottom 5.
  • Figures 2 and 3 show that a plate 16 or cover is attached to the upper face 4 of the frame 2.
  • This plate also made of stainless steel, has the same dimensions as the bottom 5 of the frame 2 so as to cover the entire face 4, including the upper surface of the profiles 7, 8, 9 and 10.
  • the plate 16 is perforated by a series of holes 17 whose cumulative areas represent a fraction of the surface of this plate typically equal to approximately 30% of the surface of the plate 16.
  • the latter is also fixed to the frame 2 by any known fixing means (not shown).
  • the structure 3, shown in FIG. 2, consists of three superimposed layers: a lower layer 18 or layer close to the bottom 5 of the frame 2, a middle layer 19 and an upper layer 20 or layer close to the upper face 4 of the frame 2.
  • the three layers 18, 19 and 20 are made from recycled materials.
  • the lower layers 18 and upper 20 are made up of particles of ground rubber, in particular from recycled used tires or from industry. These particles are mixed with a binder, which is for example a polyurethane prepolymer, to form a complex which can be shaped in box 2.
  • the middle layer 19 consists of plastic flakes obtained by grinding, for example from recycled PVC bottles, 8 to 10 mm long approximately.
  • the frame 2 (empty) is filled with the recycled rubber-binder complex up to approximately one third of the height of the frame, corresponding to the level defined by the supports 13, and thus defining the layer lower 18.
  • the complex is not packed so as to leave a certain volume of vacuum between the rubber particles.
  • the plates 14 and 15 are then placed and fixed to the supports 13. They make it possible to regulate the frame in order to resist deformations.
  • the PVC flakes are then poured to form the middle layer 19, over a height substantially equivalent to that of the lower layer 18.
  • the shape of the flakes leads to the existence of a very large void volume in the layer 19, from the 'order of 50% of the total volume of this layer.
  • the upper layer 20 is obtained in the same way as the lower layer 18, up to the upper level of the tank.
  • the rubber-binder complex is also poured inside the walls 6, to occupy their volume 11. This makes it possible to increase the inertia of the frame 2 without significantly affecting the acoustic performance.
  • the plate 16 is then fixed to the frame 2 so as to hold the three layers 18, 19 and 20 together. After polymerization of the binder, the sound insulation element is ready to be used.
  • the elements 1 thus produced are easy to handle; for example, they are 2.40 m long and 1.20 m wide. They are easily modular: their thickness can be increased to absorb more sounds. Their thickness is typically between 15 and 30 cm, but can reach 50 cm.
  • the relative thicknesses of the three layers 18, 19, 20 may moreover be different depending on the range of noise to be absorbed and in particular, the lower layer 18 may be of thickness less than that of the upper layer 20.
  • the perforated plate 16 can also have an aesthetic function.
  • element 1 In service, element 1 is straightened, the plate 16 being disposed towards the front, that is to say towards the noise to be absorbed.
  • the structure of the frame 2 allows the element 1 to withstand the climatic effects, such as the wind which exerts a thrust, as well as the piston effect due to the passage of a road vehicle or a train set to the neighborhood of element 1.
  • Structure 3 in which the densities of layers 18 and 20 are identical and homogeneous, is particularly well suited to absorb airborne noise at high frequencies.
  • layer 19 gives the assembly a "double wall” configuration, giving element 1 barrier properties against the transmission of airborne noise.
  • the absorption of noise at low frequencies can be improved by varying the density of the upper layer 20, as in the variant shown in FIG. 4.
  • the second embodiment differs from the first embodiment (FIGS. 1 to 3) by the density of the upper layer 20, and by the presence of a base layer 21 between the bottom 5 of the frame 2 and the lower layer 18.
  • This base layer 21 is of high density (between 0.8 and 1). It is prefabricated from rubber. It provides better isolation of the bottom 5 from low frequency sounds, in particular to avoid overheating of the bottom of the frame.
  • the density of the upper layer 20 varies by exposing, at its external face, strips 22 of relatively dense recycled rubber, previously prefabricated under compression.
  • the remainder 23 of the layer 20 has the same composition as in the first embodiment.
  • the strips 22 are of higher density than those of layer 18 and part 23 of layer 20, but lower than that of base layer 21.
  • the layer of PVC flakes is replaced by a layer of ambient air.
  • the frame 2 is made in two parts 25 and 26 mounted head to tail by interlocking and mutual fixing by fixing means (not shown) and / or by welding.
  • fixing means not shown
  • a rubber seal can be interposed between the two nested parts.
  • the structures of the frame parts 25 and 26 are respectively substantially identical to the upper and lower half of the frame 2 of FIG. 4 (apart from the interlocking zones).
  • the consistency of the material of the layer 20 prevents any overflow of this material through the holes 17 of the perforated plate 16 (the latter playing the role of the bottom during casting).
  • the two parts 25 and 26 are mounted head to tail to form the frame 2, thus creating a layer 19 of ambient air between the layers 18 and 20.
  • An “anti-noise” wall can be produced by juxtaposition and mutual connection of a plurality of these elements 1, by any suitable technique.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
EP95400389A 1995-02-23 1995-02-23 Akustisch isolierendes Bauelement und aus solchen Elementen erstellte schalldämmende Wand Withdrawn EP0728877A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP95400389A EP0728877A1 (de) 1995-02-23 1995-02-23 Akustisch isolierendes Bauelement und aus solchen Elementen erstellte schalldämmende Wand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95400389A EP0728877A1 (de) 1995-02-23 1995-02-23 Akustisch isolierendes Bauelement und aus solchen Elementen erstellte schalldämmende Wand

Publications (1)

Publication Number Publication Date
EP0728877A1 true EP0728877A1 (de) 1996-08-28

Family

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EP95400389A Withdrawn EP0728877A1 (de) 1995-02-23 1995-02-23 Akustisch isolierendes Bauelement und aus solchen Elementen erstellte schalldämmende Wand

Country Status (1)

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EP (1) EP0728877A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1092808A1 (de) * 1999-10-15 2001-04-18 Jansen Kunststoffen B.V. Schallschluckmodul, Schallschluckschirm oder -Wand und Verfahren zur Herstellung des Schallschluckmodules
EP1457613A1 (de) * 2003-03-13 2004-09-15 A.J.A. Bol Holding B.V. Konstruktions- oder Abdeckelement
BE1016198A3 (nl) * 2004-09-15 2006-05-02 Vos Jean Paul De Geluidwerend wandpaneel.
US20210131049A1 (en) * 2019-11-06 2021-05-06 Champagne Edition Inc. Sound barrier

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE742871C (de) * 1940-12-06 1944-02-25 Weiss & Co Baukoerper mit schallschluckenden Eigenschaften
DE1409914A1 (de) * 1959-11-05 1969-05-29 Bolt Beranek & Newman Platte u.dgl. mit hoher Schalldaemmung
DE8008907U1 (de) * 1980-03-31 1981-09-17 Naamloze Vennootschap Hörmann-Belgie, 3600 Genk Kastenförmiges Element zum Aufbau schallschützender Wände
DE3438368A1 (de) * 1984-10-19 1986-06-12 Paul 8951 Stötten Kaiser Bau-isolierplatte
GB2170861A (en) * 1985-02-08 1986-08-13 Colchester Woods Air duct silencer splitter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE742871C (de) * 1940-12-06 1944-02-25 Weiss & Co Baukoerper mit schallschluckenden Eigenschaften
DE1409914A1 (de) * 1959-11-05 1969-05-29 Bolt Beranek & Newman Platte u.dgl. mit hoher Schalldaemmung
DE8008907U1 (de) * 1980-03-31 1981-09-17 Naamloze Vennootschap Hörmann-Belgie, 3600 Genk Kastenförmiges Element zum Aufbau schallschützender Wände
DE3438368A1 (de) * 1984-10-19 1986-06-12 Paul 8951 Stötten Kaiser Bau-isolierplatte
GB2170861A (en) * 1985-02-08 1986-08-13 Colchester Woods Air duct silencer splitter

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1092808A1 (de) * 1999-10-15 2001-04-18 Jansen Kunststoffen B.V. Schallschluckmodul, Schallschluckschirm oder -Wand und Verfahren zur Herstellung des Schallschluckmodules
NL1013311C2 (nl) * 1999-10-15 2001-04-18 Jansen Kunststoffen B V Geluidabsorberende module, geluidabsorberend scherm of wand en werkwijze voor de vervaardiging van de geluidabsorberende module.
EP1457613A1 (de) * 2003-03-13 2004-09-15 A.J.A. Bol Holding B.V. Konstruktions- oder Abdeckelement
BE1016198A3 (nl) * 2004-09-15 2006-05-02 Vos Jean Paul De Geluidwerend wandpaneel.
US20210131049A1 (en) * 2019-11-06 2021-05-06 Champagne Edition Inc. Sound barrier
US11767648B2 (en) * 2019-11-06 2023-09-26 Champagne Edition Inc. Sound barrier

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