WO1998040574A1 - Sound-proofing surface component - Google Patents

Sound-proofing surface component Download PDF

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Publication number
WO1998040574A1
WO1998040574A1 PCT/DE1998/000669 DE9800669W WO9840574A1 WO 1998040574 A1 WO1998040574 A1 WO 1998040574A1 DE 9800669 W DE9800669 W DE 9800669W WO 9840574 A1 WO9840574 A1 WO 9840574A1
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WO
WIPO (PCT)
Prior art keywords
sound
surface component
sand
quartz
powder
Prior art date
Application number
PCT/DE1998/000669
Other languages
German (de)
French (fr)
Inventor
Karl Jun. Limberger
Original Assignee
Limberger Karl Jun
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 Limberger Karl Jun filed Critical Limberger Karl Jun
Priority to AT98919047T priority Critical patent/ATE229115T1/en
Priority to EP98919047A priority patent/EP0966579B1/en
Priority to DE59806536T priority patent/DE59806536D1/en
Priority to AU72041/98A priority patent/AU7204198A/en
Publication of WO1998040574A1 publication Critical patent/WO1998040574A1/en

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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
    • 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
    • E04B2001/747—Corrugated materials
    • 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
    • E04B2001/748—Honeycomb materials

Definitions

  • the invention relates to a sound absorbing
  • Such a sound-absorbing surface component is known from DE 29 53 356 Cl.
  • a spherical metallic material is used there as a filler.
  • This metallic material can be steel balls.
  • the grain size scatter of the spherical metallic material is small in order to achieve a regular bed, i.e. avoid setting or sagging of the filling material.
  • the filling of the channel spaces with metallic material results in a surface component with high manufacturing costs.
  • a sound-absorbing surface component with a central surface element which has filling spaces provided closely next to one another and parallel to one another.
  • the central surface element is closed at the top and bottom by cover plates; it forms a spacer, the filling spaces provided closely next to one another being filled with a filler.
  • This filler can be a foamed one Trade plastic such as polyester or polyurethane.
  • the invention has for its object to provide a sound-absorbing surface component of the type mentioned, which is simple and inexpensive to implement and which has good sound insulation properties.
  • the corrugated cardboard is closed at its two open end faces and that the filler consists of powder material and sand material or granules. It is useful in the sound-absorbing surface component if the corrugated cardboard surface element has at least two corrugated webs which are connected to one another in such a way that the channel spaces of the adjacent corrugated webs intersect, and that the filler consists of an immovable sand material interlocking in the channel spaces and one between the sand material provided, limited mobility powder material.
  • the corrugated cardboard surface element has three corrugated paths.
  • the middle wave path can have a smaller wave height than the two outer wave paths.
  • Such a sheet of corrugated cardboard is known, for example, from a brochure from Wellpappe Ansbach Duropack Deutschen mbH, 91522 Ansbach, under the name X-PLY (brand of Kartonex Ges. MbH).
  • This well-known corrugated sheet surface element has so far been used as packaging material for granule silos, liquid packaging, in mechanical and plant engineering the electrical industry, for heavy goods, etc. for use.
  • Such a corrugated sheet surface element is available inexpensively; in combination with the sand material and powder material filling the channel spaces of such a corrugated sheet surface element, the result is, according to the invention, a self-supporting, sturdy flat construction element with excellent sound insulation properties.
  • the mixing ratio of sand material to powder material is preferably of the order of magnitude 5: 2.
  • Sound waves become quasi pyramid-shaped as a passive sound funnel through the intersecting wave paths of the corrugated cardboard sheet element used according to the invention, i.e. the impinging sound waves are often deflected. This results in damping as a result of the defined sound introduction into the mass of the filler which actually has a sound-absorbing effect.
  • the soundproofing surface component according to the invention also has an excellent external compression pressure resistance and an excellent internal burst pressure resistance:
  • the filling material - as has already been mentioned - preferably has quartz sand with a defined grain size.
  • This quartz sand forms in the Channel spaces of the intersecting wave paths an immobile grain structure.
  • This grain structure guarantees a defined introduction of sound energy into the interior of the surface component.
  • the quartz sand provides a defined mass structure which, in combination with the corrugated sheet surface element used according to the invention, results in a homogeneous effectiveness of the damping, ie the internal damping, which is not interrupted by any weak point.
  • the aforementioned grain structure made of the immovable quartz sand which interlocks in the channel spaces at the same time ensures the physical load and compressive strength of the soundproofing surface component according to the invention.
  • the quartz sand and the quartz powder are mixed in a defined ratio in such a way that the quartz powder fills the interstices of the grain structure made of quartz sand, but still remains freely movable in these interstices.
  • the use of quartz sand and quartz powder with defined bulk densities and grain sizes or finenesses advantageously ensures that the sound insulation is frequency-covering, in particular because the freely movable quartz powder in the space between the immobile quartz sand leads to the acoustic vibration oscillating accordingly Movement of the quartz flour converts, the vibration energy being damped accordingly.
  • Exemplary embodiments of the soundproofing surface component according to the invention are shown in the drawing and are described below. Show it: 1 in sections in a spatial representation a first embodiment of the sound-absorbing surface component,
  • Fig. 2 shows a second embodiment of the sound absorbing
  • FIG. 3 shows a third embodiment of the sound-absorbing surface component in sections in a perspective view
  • FIG. 4 in sections in an enlarged perspective view, not drawn to scale, a corner area of a preferred
  • FIG. 5 further enlarged, not to scale, a view of the sound-absorbing surface component according to FIG. 4 in the direction of the arrow V, i.e. in a front view.
  • Fig. 1 shows in sections in a spatial representation a first embodiment of the sound-absorbing surface component 10 with a surface element 12 ', which consists of a layer of corrugated cardboard 14'.
  • the corrugated cardboard 14 ' defines closely adjacent and mutually parallel channel spaces 16' which are filled with a filler 18 '.
  • the two open end faces 20 ' are each tightly closed.
  • FIG. 2 shows, in a representation similar to FIG. 1, a second embodiment of the sound-absorbing surface component 10, which differs from the surface component 10 shown in FIG. 1 in particular. differs in that not only one layer of corrugated cardboard is provided, but that the surface component 10 has two layers of corrugated cardboard 14 'which are connected to one another to form a unit.
  • FIG. 2 The same details are designated in FIG. 2 with the same reference numerals as in FIG. 1, so that it is not necessary to describe all of these details in detail again in connection with FIG. 2.
  • Another difference between the embodiment of the sound-absorbing surface component 10 shown in FIG. 1 and the embodiment shown in FIG. 2 is that in the surface component 10 shown in FIG. 2 the two opposite end surfaces 20 ', of which only in FIG. 2 one end surface 20 'is shown in the drawing, is sealed tightly by means of an adhesive layer 24' in order to captively fix the filler 18 'in the channel spaces 16'.
  • FIG. 3 shows in sections in a spatial representation a third embodiment of the soundproofing surface component 10, in which the surface element 12 'has a honeycomb cross-sectional structure, by means of which closely adjacent and mutually parallel channel spaces 16' are defined which are filled with a filler 18 ' .
  • the filler 18 ' is a powder and sand or granules.
  • the two opposite end surfaces 20' are also sealed in the embodiment of the sound-absorbing surface component 10 shown in FIG. 3, which is done by means of an adhesive strip 22 '(as shown in FIG. 1) or by means of an adhesive layer 24'. can be realized as shown in Fig. 2.
  • a sound-absorbing surface component 10 results which is simple to manufacture and which is easy to process.
  • the surface component 10 can be provided in a flat or wound web shape or preferably in a plate shape, it can be used both in the floor area and in the wall or ceiling area.
  • FIGS. 4 and 5 show a very particularly preferred embodiment of the sound-absorbing surface component 10, which has a central wave path 12 and two outer wave paths 14 and 16.
  • a surface component 10 is - as mentioned above - known per se, it has so far been used as packaging material.
  • the outer corrugated path 14 has, for example, an inner ceiling 18, a so-called A-shaft 20 without indentation and an intermediate layer 22, which is also part of the central corrugated path 12.
  • the central wave path 12 has a so-called C-wave 24 without indentation connected to the intermediate layer 22 and an intermediate layer 26 which is at the same time part of the outer wave path 16.
  • Said intermediate layer 26 is connected to an A-shaft 20 without drawing in.
  • the outer wave path 16 is closed by an outer cover 28.
  • the inner ceiling 18, the Intermediate layers 22 and 26 and the outer layer 28 consist for example of a so-called kraft liner and the two A-waves 20 without indentation and the C-wave 24 without indentation consist for example of a semi-pulp.
  • Table 1 the basis weights of the individual layer components of the surface component 10 are given as examples.
  • the weight per unit area of the corrugated sheet surface element according to Table 1 is, for example, a total of 1,877 g / m.
  • the layer components of the corrugated sheet surface element are bonded e.g. using a suitable glue in an inline lamination process.
  • the internal compressive strength or the bursting compressive strength is very important if the channel spaces are in danger of expanding or deforming due to the weight of the heavyweight filling.
  • the dimensional accuracy and strength of the Ceiling and intermediate layers of the surface element are decisive over long periods of time. Without this dimensional accuracy of the corrugated sheet-like element used according to the invention, neither the grain structure nor the limitedly movable material contained therein can have a defined effect, because voids would form.
  • inline lamination of the corrugated sheet surface element of the order of 300 g / m is sufficient for floor panels
  • inline lamination of the corrugated sheet surface elements of at least 700 g / is required for wall panels and for suspended ceiling panels.
  • FIG. 4 also illustrates by cross-hatching a closure coating 30 and 32, through which the channel spaces 34 of the central wave path 12 and the channel spaces 36 of the two outer wave paths 14 and 16 are closed at their open ends, that is to the outside.
  • FIG. 5 illustrates a section of the surface component 10, the closure coating 30 being shown partially broken open in order to illustrate the filler 38 with which the channel spaces 34 and 36 of the surface component 10 are filled.
  • the filler 38 consists of quartz sand 40, 42, the quartz sand 40 being provided in the channel spaces 36 of the two outer wave paths 14 and 16 and the quartz sand 42 in the middle wave path 12.
  • the quartz sand 40, 42 is provided in the corresponding channel space 36, 34 in such a way that it is interlocked and consequently immovable.
  • the space between the respective quartz sand 40, 42 is filled with quartz powder 44, 46.
  • the quartz powder 44, 46 is provided with limited mobility in the respective space.
  • Table 2 gives an example of numerical data on the grain size and fineness of grinding and on the bulk density of quartz sand and quartz powder in the middle wave path and in the two outer wave paths oriented perpendicular to the middle wave path.
  • Grain size (approx.) 0.1 - 0.5 mm 0.08 - 0.2 mm of the grain structure
  • each of the two A-waves i.e. of the two outer wave paths 14 and 16 is e.g. approx. 3.5 mm and the height of the middle wave track 12 is e.g. approx. 2.0 mm.
  • the surface component 10 is also possible.
  • suitable other materials of appropriate grain size or grinding fineness as filler 38 instead of the quartz sand and quartz powder described above.

Abstract

The invention relates to a sound-proofing surface component (10), wherein a cardboard surface element with closely adjacent parallel grooves (34, 36) is filled with a filling material consisting of powder and sand or granulates, the ends of said grooves (34, 36) being sealed. The cardboard surface element is preferably provided with undulated strips (14, 16) which are connected to each other in such a way that the grooves (34, 36) of the adjacent undulated strips (12, 14) cross each other. Preferably, the cardboard surface element has three undulated strips (12, 14, 16), wherein the middle undulated strip (12) has a lower peak than the two other undulated strips (14, 16). The filling material (38) contains a sand material which is preferably made of quartz sand (40, 42), closely interlocking with the grooves (34, 36), thus remaining immobile. The filling material (38) also contains quartz powder (44, 46) in-between the quartz sand (40, 42) which is relatively mobile.

Description

Schalldämpfendes FlächenbauelementSound absorbing surface component
Die Erfindung betrifft ein schalldämmendesThe invention relates to a sound absorbing
Flächenbauelement, wobei ein eng benachbarte und zueinander parallele Kanalräume aufweisendes Flächenelement aus Wellpappe mit einem Füllstoff gefüllt ist.Surface component, wherein a closely adjacent and parallel channel space element made of corrugated cardboard is filled with a filler.
Ein derartiges schalldämmendes Flächenbauelement ist aus der DE 29 53 356 Cl bekannt. Als Füllstoff kommt dort ein kugelförmiges metallisches Material zur Anwendung. Bei diesem metallischen Material kann es sich um Stahlkügelchen handeln. Die Korngrößenstreuung des kugelförmigen metallischen Materials ist gering, um eine regelmäßige Schüttung zu erzielen, d.h. ein Setzen oder Zusammensacken des Füllmaterials zu vermeiden. Die Füllung der Kanalräume mit metallischem Material resultiert in einem Flächenbauelement mit hohen Herstellungskosten.Such a sound-absorbing surface component is known from DE 29 53 356 Cl. A spherical metallic material is used there as a filler. This metallic material can be steel balls. The grain size scatter of the spherical metallic material is small in order to achieve a regular bed, i.e. avoid setting or sagging of the filling material. The filling of the channel spaces with metallic material results in a surface component with high manufacturing costs.
Aus der CH 579 691 A5 ist ein schalldämmendes Flächenbauelement mit einem zentralen Flächenelement bekannt, das eng nebeneinander und zueinander parallel vorgesehene Füllräume aufweist. Das zentrale Flächenelement ist ober- und unterseitig durch Deckplatten abgeschlossen; es bildet einen Distanzkörper, wobei die eng nebeneinander vorgesehenen Füllräume mit einem Füllstoff gefüllt sind. Bei diesem Füllstoff kann es sich um einen geschäumten Kunststoff wie Polyester oder Polyurethan handeln. Die Herstellung eines solchen Flächenelementes der zuletzt genannten Art ist relativ aufwendig und nur mit speziellen Maschinen möglich.From CH 579 691 A5 a sound-absorbing surface component with a central surface element is known which has filling spaces provided closely next to one another and parallel to one another. The central surface element is closed at the top and bottom by cover plates; it forms a spacer, the filling spaces provided closely next to one another being filled with a filler. This filler can be a foamed one Trade plastic such as polyester or polyurethane. The production of such a surface element of the last-mentioned type is relatively complex and only possible with special machines.
Der Erfindung liegt die Aufgabe zugrunde, ein schalldämmendes Flächenbauelement der eingangs genannten Art zu schaffen, das einfach und preisgünstig realisierbar ist und das gute Schalldämmeigenschaften aufweist.The invention has for its object to provide a sound-absorbing surface component of the type mentioned, which is simple and inexpensive to implement and which has good sound insulation properties.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Wellpappe an ihren beiden offenen Endflächen verschlossen ist, und daß der Füllstoff aus Pulvermaterial und aus Sandmaterial bzw. Granulat besteht. Zweckmäßig ist es bei dem schalldämmenden Flächenbauelement, wenn das Wellpappe- Flächenelement mindestens zwei Wellenbahnen aufweist, die miteinander derartig verbunden sind, daß sich die Kanalräume der benachbarten Wellbahnen kreuzen, und daß der Füllstoff aus einem sich in den Kanalräumen verzahnenden, unbeweglichen Sandmaterial und einem zwischen dem Sandmaterial vorgesehenen, begrenzt beweglichen Pulvermaterial besteht.This object is achieved in that the corrugated cardboard is closed at its two open end faces and that the filler consists of powder material and sand material or granules. It is useful in the sound-absorbing surface component if the corrugated cardboard surface element has at least two corrugated webs which are connected to one another in such a way that the channel spaces of the adjacent corrugated webs intersect, and that the filler consists of an immovable sand material interlocking in the channel spaces and one between the sand material provided, limited mobility powder material.
Bevorzugt ist es bei dem erfindungsgemäßen schalldämpfenden Flächenbauelement, wenn das Wellpappe-Flächenelement drei Wellenbahnen aufweist. Dabei kann die mittlere Wellenbahn eine kleinere Wellenhöhe aufweisen als die beiden äußeren Wellenbahnen. Ein derartiges Wellpappe-Flächenelement ist beispielsweise aus einem Prospekt der Firma Wellpappe Ansbach Duropack Gesellschaft mbH, 91522 Ansbach, unter der Bezeichnung X-PLY (Marke der Firma Kartonex Ges. mbH) bekannt. Dieses bekannte Wellpappe-Flächenelement kommt bislang als Verpackungsmaterial für Granulatsilos, Flüssigkeitsverpackungen, im Maschinen- und Anlagebau, in der Elektroindustrie, für Schwergüter usw. zur Anwendung. Ein solches Wellpappe-Flächenelement steht preisgünstig zur Verfügung, in Kombination mit dem die Kanalräume eines derartigen Wellpappe-Flächenelementes füllenden Sandmaterial und Pulvermaterial ergibt sich erfindungsgemäß ein selbsttragendes, trittfestes Flächenbauelement mit ausgezeichneten Schalldämm-Eigenschaften .In the sound-absorbing surface component according to the invention, it is preferred if the corrugated cardboard surface element has three corrugated paths. The middle wave path can have a smaller wave height than the two outer wave paths. Such a sheet of corrugated cardboard is known, for example, from a brochure from Wellpappe Ansbach Duropack Gesellschaft mbH, 91522 Ansbach, under the name X-PLY (brand of Kartonex Ges. MbH). This well-known corrugated sheet surface element has so far been used as packaging material for granule silos, liquid packaging, in mechanical and plant engineering the electrical industry, for heavy goods, etc. for use. Such a corrugated sheet surface element is available inexpensively; in combination with the sand material and powder material filling the channel spaces of such a corrugated sheet surface element, the result is, according to the invention, a self-supporting, sturdy flat construction element with excellent sound insulation properties.
Bei dem erfindungsgemäßen schalldämmenden Flächenbauelement beträgt das Mischungsverhältnis von Sandmaterial zu Pulvermaterial vorzugsweise größenordnungsmäßig 5:2.In the soundproofing surface component according to the invention, the mixing ratio of sand material to powder material is preferably of the order of magnitude 5: 2.
Als zweckmäßig hat es sich erwiesen, wenn als Sandmaterial ein Quarzsand verwendet wird, dessen Korngröße in der jeweiligen äußeren Wellenbahn bei einer Schüttdichte von ca. 1.300 kg/m3 zwischen 0,1 und 0,5 mm und wenn als Pulvermaterial ein Quarzmehl verwendet wird, dessen Mahlfeinheit in der jeweiligen äußeren Wellenbahn bei einerIt has proven to be useful if a quartz sand is used as sand material, the grain size of which in the respective outer wave path at a bulk density of approx. 1,300 kg / m 3 is between 0.1 and 0.5 mm and if a quartz powder is used as powder material , whose fineness in the respective outer wave path at a
Schüttdichte von ca. 1.050 kg/mr zwischen 0,04 und 0 , 1 mm und wenn die Korngröße des Quarzsandes in der mittleren Wellenbahn bei einer Schüttdichte von ca. 1.100 kg/m3 zwischen 0,08 und 0,2 mm und die Mahlfeinheit des Quarzmehls in der mittleren Wellenbahn bei einer Schüttdichte von ca. 800 kg/mJ mindestens 0,04 mm beträgt. Ein solcher Quarzsand und ein derartiges Quarzmehl werden beispielsweise von der Firma A berger Kaolinwerke Eduard Kick GmbH & Co. KG., 92242 Hirschau, angeboten.Bulk density of approx. 1,050 kg / mr between 0.04 and 0.1 mm and if the grain size of the quartz sand in the middle wave path with a bulk density of approx. 1,100 kg / m 3 between 0.08 and 0.2 mm and the grinding fineness of quartz powder in the middle wave path with a bulk density of approx. 800 kg / m J is at least 0.04 mm. Such quartz sand and quartz powder are available, for example, from the company Berger Kaolinwerke Eduard Kick GmbH & Co. KG., 92242 Hirschau.
Durch die sich kreuzenden Wellenbahnen ergeben sich gleichsam Haltepunkte und somit eine Armierung, wie sie etwa prinzipiell mit dem Stahl im Stahlbeton vergleichbar ist. Darüberhinaus ergeben die unterschiedlichen Kanalgrößen der sich kreuzenden Wellenbahnen eine zum Zentrum des Flächenbauelementes hin erhöhte Druckfestigkeit. Da die Wellen der sich überkreuzenden Wellenbahnen sich genau definiert überkreuzen, ergeben sich neben der besagten erhöhten Druckfestigkeit auch optimale schalltechnische bzw. schalldämmende Eigenschaften. Auf das erfindungsgemäße Flächenbauelement auftreffendeDue to the crossing wave paths, there are, as it were, stopping points and thus a reinforcement, which is comparable in principle to steel in reinforced concrete. In addition, the different channel sizes of the intersecting wave paths result in an increase towards the center of the surface component Compressive strength. Since the waves of the intersecting wave paths cross each other in a precisely defined manner, in addition to the aforementioned increased compressive strength, there are also optimal acoustic and sound-absorbing properties. Impinging on the surface component according to the invention
Schallwellen werden durch die sich überkreuzenden Wellenbahnen des erfindungsgemäß zur Anwendung gelangenden Wellenpappe-Flächenelementes quasi pyramidenförmig als passiver Schalltrichter wirksam, d.h. die auftreffenden Schallwellen werden vielfach abgelenkt. Dabei ergibt sich eine Dämpfung infolge der definierten Schalleinleitung in die eigentlich schalldämpfend wirkende Masse des Füllstoffes. Aufgrund der kreuzweisen Anordnung der Wellenbahnen und insbesondere aufgrund der vorzugsweise geringen Wellenhöhe der mittleren Wellenbahn im Vergleich zur Wellenhöhe der beiden äußeren Wellenbahnen ergibt sich in weiterer vorteilhafter Weise flächig eine definierte Materialüberlagerung, durch welche die auf das Flächenbauelement auftreffende Schallwellen definiert gebrochen, abgeleitet und diffus absorbieret werden. Es kommt folglich in vorteilhafter Weise zu einer umfassenden Dämpfung aller eingeleiteten Schallfrequenzen, ohne daß es zwischen der akustischen Anregung und möglichen Biegeschwingungen des Flächenbauelementes zu Resonanzwirkungen kommt.Sound waves become quasi pyramid-shaped as a passive sound funnel through the intersecting wave paths of the corrugated cardboard sheet element used according to the invention, i.e. the impinging sound waves are often deflected. This results in damping as a result of the defined sound introduction into the mass of the filler which actually has a sound-absorbing effect. Due to the crosswise arrangement of the wave paths and in particular due to the preferably low wave height of the middle wave path in comparison to the wave height of the two outer wave paths, a defined material overlay results in a further advantageous manner, through which the sound waves impinging on the surface component are broken, derived and diffusely absorbed in a defined manner become. Consequently, there is an advantageous attenuation of all sound frequencies introduced, without there being any resonance effects between the acoustic excitation and possible bending vibrations of the surface component.
Das erfindungsgemäße schalldämmende Flächenbauelement weist außerdem eine ausgezeichnete äußere Kompressions- Druckfestigkeit und eine ausgezeichnete innere Berst- Druckfestigkeit auf:The soundproofing surface component according to the invention also has an excellent external compression pressure resistance and an excellent internal burst pressure resistance:
Erfindungsgemäß weist das Füllmaterial - wie bereits erwähnt worden ist - vorzugsweise Quarzsand mit einer definierten Korngröße auf. Dieser Quarzsand bildet in den Kanalräumen der sich überkreuzenden Wellenbahnen ein unbewegliches Korngerüst. Durch dieses Korngerüst ist eine definierte Einleitung von Schallenergie in das Innere des Flächenbauelementes gewährleistet. Gleichzeitig ist durch den Quarzsand eine definierte Massestruktur gegeben, die in Kombination mit dem erfindungsgemäß zur Anwendung gelangenden Wellpappe-Flächenelement eine homogene, von keiner Schwachstelle unterbrochene Wirksamkeit der Dämpfung, d.h. der inneren Dämpfung, ergibt. Durch das besagte Korngerüst aus dem sich in den Kanalräumen verzahnenden, unbeweglichen Quarzsand wird gleichzeitig die physikalische Belastungs- und Druckfestigkeit des erfindungsgemäßen schalldämmenden Flächenbauelementes gewährleistet. Der Quarzsand und das Quarzmehl werden in einem definierten Verhältnis derartig gemischt, daß das Quarzmehl wohl die Zwischenräume des Korngerüstes aus Quarzsand ausfüllt, in diesen Zwischenräumen jedoch noch begrenzt frei beweglich bleibt. Durch die Anwendung von Quarzsand und Quarzmehl mit definierten Schüttdichten und Korngrößen bzw. Mahlfeinheiten wird in vorteilhafter Weise die Schalldämmung frequenzdeckend insbesondere auch deshalb gewährleistet, weil das begrenzt frei bewegliche Quarzmehl im Zwischenraum zwischen dem unbeweglichen Quarzsand dazu führt, daß sich die schalltechnische Schwingung in eine entsprechende Bewegung des Quarzmehles umwandelt, wobei die Schwingungsenergie entsprechend gedämpft wird.According to the invention, the filling material - as has already been mentioned - preferably has quartz sand with a defined grain size. This quartz sand forms in the Channel spaces of the intersecting wave paths an immobile grain structure. This grain structure guarantees a defined introduction of sound energy into the interior of the surface component. At the same time, the quartz sand provides a defined mass structure which, in combination with the corrugated sheet surface element used according to the invention, results in a homogeneous effectiveness of the damping, ie the internal damping, which is not interrupted by any weak point. The aforementioned grain structure made of the immovable quartz sand which interlocks in the channel spaces at the same time ensures the physical load and compressive strength of the soundproofing surface component according to the invention. The quartz sand and the quartz powder are mixed in a defined ratio in such a way that the quartz powder fills the interstices of the grain structure made of quartz sand, but still remains freely movable in these interstices. The use of quartz sand and quartz powder with defined bulk densities and grain sizes or finenesses advantageously ensures that the sound insulation is frequency-covering, in particular because the freely movable quartz powder in the space between the immobile quartz sand leads to the acoustic vibration oscillating accordingly Movement of the quartz flour converts, the vibration energy being damped accordingly.
Ausführungsbeispiele des erfindungsgemäßen schalldämmenden Flächenbauelementes sind in der Zeichnung dargestellt und werden nachfolgend beschrieben. Es zeigen: Fig. 1 abschnittweise in einer räumlichen Darstellung eine erste Ausbildung des schalldämmenden Flächenbauelementes ,Exemplary embodiments of the soundproofing surface component according to the invention are shown in the drawing and are described below. Show it: 1 in sections in a spatial representation a first embodiment of the sound-absorbing surface component,
Fig. 2 eine zweite Ausführungs form des schalldärruriendenFig. 2 shows a second embodiment of the sound absorbing
Flächenbauelementes abschnittweise in einer räumlichen Darstellung,Surface component in sections in a spatial representation,
Fig. 3 eine dritte Ausführungsform des schalldämmenden Flächenbauelementes abschnittweise in einer perspektivischen Ansicht,3 shows a third embodiment of the sound-absorbing surface component in sections in a perspective view,
Fig. 4 abschnittweise in einer vergrößerten, nicht maßstabsgetreu gezeichneten perspektivischen Ansicht einen Eckenbereich einer bevorzugtenFig. 4 in sections in an enlarged perspective view, not drawn to scale, a corner area of a preferred
Ausbildung des schalldämmenden Flächenbauelementes , undTraining of the soundproofing surface component, and
Fig. 5 weiter vergrößert, nicht maßstabsgetreu eine Ansicht des schalldämmenden Flächenbauelementes gemäß Fig. 4 in Blickrichtung des Pfeiles V, d.h. in einer Vorderansicht.5 further enlarged, not to scale, a view of the sound-absorbing surface component according to FIG. 4 in the direction of the arrow V, i.e. in a front view.
Fig. 1 zeigt abschnittweise in einer räumlichen Darstellung eine erste Ausführungsform des schalldämmenden Flächenbauelementes 10 mit einem Flächenelement 12 ' , das aus einer Lage Wellpappe 14' besteht. Durch die Wellpappe 14 ' werden eng benachbarte und zueinander parallele Kanalräume 16' festgelegt, die mit einem Füllstoff 18' gefüllt sind. Um den Füllstoff 18' in den Kanalräumen 16' unverlierbar vorzusehen, sind die beiden offenen Endflächen 20', von welchen in Fig. 1 nur die eine Endfläche 20' zu erkennen ist, jeweils dicht verschlossen. Das kann bspw. durch eine Leimschicht, durch einen Klebestreifen 22' oder auf eine andere an sich bekannte Art und Weise realisiert sein.Fig. 1 shows in sections in a spatial representation a first embodiment of the sound-absorbing surface component 10 with a surface element 12 ', which consists of a layer of corrugated cardboard 14'. The corrugated cardboard 14 'defines closely adjacent and mutually parallel channel spaces 16' which are filled with a filler 18 '. In order to provide the filler 18 'in the channel spaces 16' so that it cannot be lost, the two open end faces 20 ', of which only one end face 20' can be seen in FIG. 1, are each tightly closed. For example, can be realized by a layer of glue, by an adhesive strip 22 'or in another manner known per se.
Fig. 2 zeigt in einer der Fig. 1 ähnlichen Darstellung eine zweite Ausbildung des schalldämmenden Flächenbauelementes 10, das sich von dem in Fig. 1 gezeichneten Flächenbauelement 10 insbes . dadurch unterscheidet, daß nicht nur eine Lage Wellpappe vorgesehen ist, sondern daß das Flächenbauelement 10 zwei Lagen Wellpappe 14' aufweist, die miteinander zu einer Einheit verbunden sind.FIG. 2 shows, in a representation similar to FIG. 1, a second embodiment of the sound-absorbing surface component 10, which differs from the surface component 10 shown in FIG. 1 in particular. differs in that not only one layer of corrugated cardboard is provided, but that the surface component 10 has two layers of corrugated cardboard 14 'which are connected to one another to form a unit.
Gleiche Einzelheiten sind in Fig. 2 mit denselben Bezugsziffern bezeichnet wie in Fig. 1, so daß es sich erübrigt, in Verbindung mit Fig. 2 alle diese Einzelheiten noch einmal detailliert zu beschreiben. Ein weiterer Unterschied zwischen dem in Fig. 1 und dem in Fig. 2 gezeichneten Ausführungsbeispiel des schalldämmenden Flächenbauelementes 10 besteht darin, daß bei dem in Fig. 2 dargestellten Flächenbauelement 10 die beiden sich gegenüberliegenden Endflächen 20', von welchen auch in Fig. 2 nur die eine Endfläche 20' zeichnerisch dargestellt ist, mittels einer Kleberschicht 24' dicht verschlossen sind, um den Füllstoff 18' in den Kanalräumen 16' unverlierbar festzulegen.The same details are designated in FIG. 2 with the same reference numerals as in FIG. 1, so that it is not necessary to describe all of these details in detail again in connection with FIG. 2. Another difference between the embodiment of the sound-absorbing surface component 10 shown in FIG. 1 and the embodiment shown in FIG. 2 is that in the surface component 10 shown in FIG. 2 the two opposite end surfaces 20 ', of which only in FIG. 2 one end surface 20 'is shown in the drawing, is sealed tightly by means of an adhesive layer 24' in order to captively fix the filler 18 'in the channel spaces 16'.
Fig. 3 zeigt abschnittweise in einer räumlichen Darstellung eine dritte Ausführungsform des schalldämmenden Flächenbauelementes 10, bei welchem das Flächenelement 12' eine Honigwaben-Querschnittsstruktur besitzt, durch welche eng benachbarte und zueinander parallele Kanalräume 16 ' festgelegt sind, die mit einem Füllstoff 18' gefüllt sind. Bei dem Füllstoff 18' handelt es sich um ein Pulver und um Sand bzw. ein Granulat. Um den Füllstoff 18' in den Kanalräumen 16 ' unverlierbar festzuhalten, sind auch bei dem in Fig. 3 gezeichneten Ausführungsbeispiel des schalldämmenden Flächenbauelementes 10 die beiden sich gegenüberliegenden Endflächen 20' dicht verschlossen, was mittels eines Klebestreifens 22' (wie in Fig. 1 dargestellt) oder mittels einer Kleberschicht 24' realisiert sein kann, wie sie in Fig. 2 dargestellt ist.3 shows in sections in a spatial representation a third embodiment of the soundproofing surface component 10, in which the surface element 12 'has a honeycomb cross-sectional structure, by means of which closely adjacent and mutually parallel channel spaces 16' are defined which are filled with a filler 18 ' . The filler 18 'is a powder and sand or granules. To filler 18 'in the To hold channel spaces 16 'captive, the two opposite end surfaces 20' are also sealed in the embodiment of the sound-absorbing surface component 10 shown in FIG. 3, which is done by means of an adhesive strip 22 '(as shown in FIG. 1) or by means of an adhesive layer 24'. can be realized as shown in Fig. 2.
Unabhängig von der speziellen Ausbildung des Flächenelementes 12' ergibt sich ein schalldämmendes Flächenbauelement 10, das einfach herstellbar und das einfach verarbeitbar ist. Das Flächenbauelement 10 kann in ebener oder aufgewickelter Bahnform oder vorzugsweise in Plattenform zur Verfügung gestellt werden, es kann sowohl im Bodenbereich als auch im Wand- bzw. Deckenbereich zur Anwendung gelangen.Regardless of the special design of the surface element 12 ', a sound-absorbing surface component 10 results which is simple to manufacture and which is easy to process. The surface component 10 can be provided in a flat or wound web shape or preferably in a plate shape, it can be used both in the floor area and in the wall or ceiling area.
Die Figuren 4 und 5 zeigen eine ganz besonders bevorzugte Ausbildung des schalldämmenden Flächenbauelementes 10, das eine mittlere Wellenbahn 12 und zwei äußere Wellenbahnen 14 und 16 aufweist. Ein solches Flächenbauelement 10 ist - wie weiter oben erwähnt worden ist - an sich bekannt, es kommt bislang als Verpackungsmaterial zur Anwendung.FIGS. 4 and 5 show a very particularly preferred embodiment of the sound-absorbing surface component 10, which has a central wave path 12 and two outer wave paths 14 and 16. Such a surface component 10 is - as mentioned above - known per se, it has so far been used as packaging material.
Die äußere Wellenbahn 14 weist hierbei z.B. eine Innendecke 18, eine sogenannte A-Welle 20 ohne Einzug und eine Zwischenlage 22 auf, die gleichzeitig Teil der mittleren Wellenbahn 12 ist. Die mittlere Wellenbahn 12 weist eine mit der Zwischenlage 22 verbundene sogenannte C-Welle 24 ohne Einzug sowie eine Zwischenlage 26 auf, die gleichzeitig Teil der äußeren Wellenbahn 16 ist. Die besagte Zwischenlage 26 ist mit einer A-Welle 20 ohne Einzug verbunden. Die äußere Wellenbahn 16 ist durch eine Außendecke 28 abgeschlossen. Die Innendecke 18, die Zwischenlagen 22 und 26 und die Außenlage 28 bestehen beispielsweise aus einem sogenannten Kraftliner und die beiden A-Wellen 20 ohne Einzug sowie die C-Welle 24 ohne Einzug bestehen beispielsweise aus einem Halbzellstoff. In der nachfolgenden Tabelle 1 sind die Flächengewichte der einzelnen Schichtkomponenten des Flächenbauelementes 10 beispielhaft angegeben.The outer corrugated path 14 has, for example, an inner ceiling 18, a so-called A-shaft 20 without indentation and an intermediate layer 22, which is also part of the central corrugated path 12. The central wave path 12 has a so-called C-wave 24 without indentation connected to the intermediate layer 22 and an intermediate layer 26 which is at the same time part of the outer wave path 16. Said intermediate layer 26 is connected to an A-shaft 20 without drawing in. The outer wave path 16 is closed by an outer cover 28. The inner ceiling 18, the Intermediate layers 22 and 26 and the outer layer 28 consist for example of a so-called kraft liner and the two A-waves 20 without indentation and the C-wave 24 without indentation consist for example of a semi-pulp. In Table 1 below, the basis weights of the individual layer components of the surface component 10 are given as examples.
Tabelle 1 Flächengewichte der Schicht-Komponenten des Wellpappe- FlächenelementesTable 1 Basis weights of the layer components of the corrugated sheet surface element
Außendecke 300 g/m2 Outside ceiling 300 g / m 2
A-Welle ohne Einzug 150 g/m2 A-wave without feed 150 g / m 2
Zwischenlage 200 g/m2 Interlayer 200 g / m 2
C-Welle ohne Einzug 175 g/m2 C-shaft without feed 175 g / m 2
Zwischenlage 400 g/m2 Intermediate layer 400 g / m 2
A-Welle ohne Einzug 150 g/m2 A-wave without feed 150 g / m 2
Innendecke 200 g/m2 Inner ceiling 200 g / m 2
Das Flächengewicht des Wellpappe-Flächenelementes gemäß Tabelle 1 beträgt insgesamt beispielsweise 1.877 g/m . Die Verklebung der Schicht-Komponenten des Wellpappe- Flächenelementes erfolgt z.B. mittels eines geeigneten Leims in einem Inline-Kaschierverfahren.The weight per unit area of the corrugated sheet surface element according to Table 1 is, for example, a total of 1,877 g / m. The layer components of the corrugated sheet surface element are bonded e.g. using a suitable glue in an inline lamination process.
Die innere Druckfestigkeit bzw. die Berst-Druckfestigkeit ist ganz entscheidend, wenn die Kanalräume durch das Eigengewicht der schwergewichtigen Füllung sich auszudehnen oder zu verformen drohen. Neben der inneren Verspannung der Armierung ist deshalb die Maßhaltigkeit und Stärke der Decken- und Zwischenlagen des Flächenelementes über lange Zeiträume hinweg maßgebend. Ohne diese Maßhaltigkeit des erfindungsgemäß zur Anwendung gelangenden Wellpappe- Flächenelementes können weder das Korngerüst noch das darin befindliche, begrenzt bewegliche Material definiert wirken, weil sich Hohlräume bilden würden.The internal compressive strength or the bursting compressive strength is very important if the channel spaces are in danger of expanding or deforming due to the weight of the heavyweight filling. In addition to the internal bracing of the reinforcement, the dimensional accuracy and strength of the Ceiling and intermediate layers of the surface element are decisive over long periods of time. Without this dimensional accuracy of the corrugated sheet-like element used according to the invention, neither the grain structure nor the limitedly movable material contained therein can have a defined effect, because voids would form.
Das ist besonders bei einer bauseitigen Wand- und Unterdecken-Verwendung wichtig. Während bei Bodenplatten eine Inline-Kaschierung des Wellpappe-Flächenelementes von größenordnungsmäßig 300 g/m genügt, sind für Wandplatten und für Unterdecken-Platten Inline-Kaschierungen der Wellpappe-Flächenelemente von mindestens 700 g/ erforderlich.This is particularly important when using wall and suspended ceilings on site. While inline lamination of the corrugated sheet surface element of the order of 300 g / m is sufficient for floor panels, inline lamination of the corrugated sheet surface elements of at least 700 g / is required for wall panels and for suspended ceiling panels.
Fig. 4 verdeutlicht außerdem durch eine kreuzweise Schraffur eine Verschluß-Beschichtung 30 und 32, durch welche die Kanalräume 34 der mittleren Wellenbahn 12 und die Kanalräume 36 der beiden äußeren Wellenbahnen 14 und 16 an ihren offenen Enden, d.h. nach außen hin verschlossen sind. Im Vergleich hierzu verdeutlicht die Figur 5 einen Abschnitt des Flächenbauelementes 10, wobei die Verschluß- Beschichtung 30 teilweise aufgebrochen gezeichnet ist, um den Füllstoff 38 zu verdeutlichen, mit welchem die Kanalräume 34 und 36 des Flächenbauelementes 10 gefüllt sind. Der Füllstoff 38 besteht aus Quarzsand 40, 42, wobei der Quarzsand 40 in den Kanalräumen 36 der beiden äußeren Wellenbahnen 14 und 16 und der Quarzsand 42 in der mittleren Wellenbahn 12 vorgesehen ist. Der Quarzsand 40, 42 ist im entsprechenden Kanalraum 36, 34 derart vorgesehen, daß er sich verzahnt und folglich unbeweglich ist. Der Zwischenraum zwischen dem jeweiligen Quarzsand 40, 42 ist mit Quarzmehl 44, 46 gefüllt. Das Quarzmehl 44, 46 ist im jeweiligen Zwischenraum begrenzt beweglich vorgesehen.Fig. 4 also illustrates by cross-hatching a closure coating 30 and 32, through which the channel spaces 34 of the central wave path 12 and the channel spaces 36 of the two outer wave paths 14 and 16 are closed at their open ends, that is to the outside. In comparison to this, FIG. 5 illustrates a section of the surface component 10, the closure coating 30 being shown partially broken open in order to illustrate the filler 38 with which the channel spaces 34 and 36 of the surface component 10 are filled. The filler 38 consists of quartz sand 40, 42, the quartz sand 40 being provided in the channel spaces 36 of the two outer wave paths 14 and 16 and the quartz sand 42 in the middle wave path 12. The quartz sand 40, 42 is provided in the corresponding channel space 36, 34 in such a way that it is interlocked and consequently immovable. The space between the respective quartz sand 40, 42 is filled with quartz powder 44, 46. The quartz powder 44, 46 is provided with limited mobility in the respective space.
Die nachfolgende Tabelle 2 gibt beispielhaft Zahlenangaben zur Korngröße und zur Mahlfeinheit sowie zum Schüttgewicht von Quarzsand und Quarzmehl in der mittleren Wellenbahn und in den beiden äußeren, zur mittleren Wellenbahn senkrecht orientierten Wellenbahn an.Table 2 below gives an example of numerical data on the grain size and fineness of grinding and on the bulk density of quartz sand and quartz powder in the middle wave path and in the two outer wave paths oriented perpendicular to the middle wave path.
Tabelle 2 Korngrößen/Mahlfeinheit und Schüttgewicht des FüllstoffsTable 2 Grain sizes / fineness and bulk density of the filler
Welle A Welle CWave A Wave C
Korngröße (ca.) 0,1 - 0,5 mm 0,08 - 0,2 mm des KorngerüstsGrain size (approx.) 0.1 - 0.5 mm 0.08 - 0.2 mm of the grain structure
Schüttgewicht (ca.) 1.200 kg/irr 1.100 kg/m3 Bulk weight (approx.) 1,200 kg / irr 1,100 kg / m 3
Mahlfeinheit der beweglichen Füllung (ca. 0,04 - 0,1 mm > 0,04 mmGrinding fineness of the movable filling (approx. 0.04 - 0.1 mm> 0.04 mm
Schüttgewicht (ca.) 050 kg/m3 800 kg/m-Bulk density (approx.) 050 kg / m 3 800 kg / m-
Die Höhenabmessung jeder der beiden A-Wellen, d.h. der beiden äußeren Wellenbahnen 14 und 16 beträgt z.B. ca. 3,5 mm und die Höhe der mittleren Wellenbahn 12 beträgt z.B. ca. 2,0 mm. Selbstverständlich sind auch andere Abmessungen des Flächenbauelementes 10 möglich. Desgleichen ist es möglich, als Füllstoff 38 anstelle des oben beschriebenen Quarzsandes und des oben beschriebenen Quarzmehls geeignete andere Materialien entsprechender Korngröße bzw. Mahlfeinheit zur Anwendung zu bringen. The height dimension of each of the two A-waves, i.e. of the two outer wave paths 14 and 16 is e.g. approx. 3.5 mm and the height of the middle wave track 12 is e.g. approx. 2.0 mm. Of course, other dimensions of the surface component 10 are also possible. Likewise, it is possible to use suitable other materials of appropriate grain size or grinding fineness as filler 38 instead of the quartz sand and quartz powder described above.

Claims

A n s p r ü c h e Expectations
1. Schalldämmendes Flächenbauelement, wobei ein eng benachbarte und zueinander parallele Kanalräume (16'; 34, 36) aufweisendes Flächenelement aus Wellpappe mit einem Füllstoff (18'; 38) gefüllt ist, d a d u r c h g e k e n n z e i c h n e t, daß die Wellpappe an ihren beiden offenen Endflächen verschlossen ist, und daß der Füllstoff (18'; 38) aus Pulvermaterial (44, 46) und Sandmaterial (40, 42) bzw. Granulat besteht.1. A soundproofing surface component, wherein a closely adjacent and mutually parallel channel spaces (16 '; 34, 36) having surface element made of corrugated cardboard is filled with a filler (18'; 38), characterized in that the corrugated cardboard is closed on its two open end surfaces, and that the filler (18 '; 38) consists of powder material (44, 46) and sand material (40, 42) or granulate.
2. Schalldämmendes Flächenbauelement nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, daß das Wellpappe-Flächenelement mindestens zwei Wellenbahnen (14, 16) aufweist, die miteinander derartig verbunden sind, daß sich die Kanalräume (34, 36) der benachbarten Wellenbahnen (14, 16) kreuzen, und daß der Füllstoff (38) ein sich in den Kanalräumen (34,36) verzahnendes, unbewegliches Sandmaterial (40, 42) und ein zwischen dem Sandmaterial (40, 42) vorgesehenes, begrenzt bewegliches Pulvermaterial (44, 46) aufweist. 2. Sound-insulating surface component according to claim 1, characterized in that the corrugated cardboard surface element has at least two corrugated paths (14, 16) which are connected to one another in such a way that the channel spaces (34, 36) of the adjacent corrugated paths (14, 16) cross, and that the filler (38) has an immovable sand material (40, 42) interlocking in the channel spaces (34,36) and a powder material (44, 46) which is movable between the sand material (40, 42).
3. Schalldämmendes Flächenbauelement nach Anspruch 2, d a d u r c h g e k e n n z e i c h n e t, daß das Wellpappe-Flächenelement drei Wellenbahnen (14, 16) aufweist.3. Sound-insulating surface component according to claim 2, d a d u r c h g e k e n n z e i c h n e t that the corrugated cardboard surface element has three wavy paths (14, 16).
4. Schalldämmendes Flächenbauelement nach Anspruch 3, d a d u r c h g e k e n n z e i c h n e t, daß die mittlere Wellenbahn (12) eine kleinere Wellenhöhe aufweist als die beiden äußeren Wellenbahnen (14,16).4. A sound-absorbing surface component according to claim 3, d a d u r c h g e k e n n z e i c h n e t that the central wave path (12) has a smaller wave height than the two outer wave paths (14,16).
5. Schalldämmendes Flächenbauelement nach Anspruch 2, d a d u r c h g e k e n n z e i c h n e t, daß das Mischungsverhältnis von von Quarzsand (40, 42) gebildetem Sandmaterial zu von Quarzmehl (44, 46) gebildetem Pulvermaterial größenordnungsmäßig 5:2 beträgt .5. Sound-insulating surface component according to claim 2, so that the mixing ratio of sand material formed by quartz sand (40, 42) to powder material formed by quartz powder (44, 46) is of the order of 5: 2.
6. Schalldämmendes Flächenbauelement nach Anspruch 4 und 5, d a d u r c h g e k e n n z e i c h n e t, daß die Korngröße des Quarzsands (40) in der jeweiligen äußeren Wellenbahn (14) bei einer Schüttdichte von ca. 1.300 kg/m3 zwischen 0,1 und 0,5 mm und die Mahlfeinheit des Quarzmehls (44) in der jeweiligen äußeren Wellenbahn (14, 16) bei einer Schüttdichte von ca. 1.050 kg/m3 zwischen 0,04 und 0,1 mm und daß die Korngröße des Quarzsands (42) in der mittleren Wellenbahn (12) bei einer Schüttdichte von ca. 1.100 kg/m3 zwischen 0,08 und 0,2 mm und die Mahlfeinheit des Quarzmehls (46) in der mittleren Wellenbahn (12) bei einer Schüttdichte von ca. 800 kg/m3 mindestens 0,04 mm beträgt. 6. Sound-insulating surface component according to claim 4 and 5, characterized in that the grain size of the quartz sand (40) in the respective outer corrugation (14) at a bulk density of about 1,300 kg / m 3 between 0.1 and 0.5 mm and Grinding fineness of the quartz powder (44) in the respective outer wave path (14, 16) with a bulk density of approx. 1,050 kg / m 3 between 0.04 and 0.1 mm and that the grain size of the quartz sand (42) in the middle wave path ( 12) at a bulk density of approx. 1,100 kg / m 3 between 0.08 and 0.2 mm and the fineness of grinding of the quartz powder (46) in the middle wave path (12) at a bulk density of approx. 800 kg / m 3 at least 0 .04 mm.
PCT/DE1998/000669 1997-03-08 1998-03-06 Sound-proofing surface component WO1998040574A1 (en)

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DE59806536T DE59806536D1 (en) 1997-03-08 1998-03-06 SOUND-INSULATING SURFACE ELEMENT
AU72041/98A AU7204198A (en) 1997-03-08 1998-03-06 Sound-proofing surface component

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DE202011105663U1 (en) 2011-09-14 2011-12-05 Jörn Dasse Insulating board arrangement, in particular stepped insulating board, and insulating device
DE102012000346A1 (en) 2012-01-11 2013-07-11 Cald'or - Energy Gmbh Base plate for laying pipeline for tempering e.g. floor, has board sheet comprising material layers, and shafts striking at material layers along preset length of pipe straight sections in preset angle on straight sections of fluid pipe
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ITPI20130048A1 (en) 2013-06-04 2014-12-05 Rolando Masini PERFECT STRUCTURE OF SOUNDPROOF COMPOSITE MATERIAL
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WO2011072867A1 (en) * 2009-12-19 2011-06-23 Michael Wolf Flat component and use thereof
US9103115B2 (en) * 2010-12-08 2015-08-11 Wolf Bavaria Gmbh Sheet-like finishing element
DE202013005985U1 (en) 2012-07-06 2013-08-27 Michael Egger Insulation Board
US20180347183A1 (en) * 2017-05-30 2018-12-06 Walter SANTI Thermoacoustic soundproofing panel

Also Published As

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ATE229115T1 (en) 2002-12-15
DE19709620A1 (en) 1998-09-24
EP0966579A1 (en) 1999-12-29
EP0966579B1 (en) 2002-12-04
AU7204198A (en) 1998-09-29
DE59806536D1 (en) 2003-01-16

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