EP1992740A1 - Sound protection element and method for its production - Google Patents
Sound protection element and method for its production Download PDFInfo
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- EP1992740A1 EP1992740A1 EP08450079A EP08450079A EP1992740A1 EP 1992740 A1 EP1992740 A1 EP 1992740A1 EP 08450079 A EP08450079 A EP 08450079A EP 08450079 A EP08450079 A EP 08450079A EP 1992740 A1 EP1992740 A1 EP 1992740A1
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- insulating layer
- soundproofing element
- sound source
- layer
- binder
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- 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
Definitions
- the invention relates to a soundproofing element with at least one in the position of use of the sound source facing insulating layer of tubular plant material and at least one remote in the position of use of the sound source layer of a curable binder.
- the invention relates to a method for producing such a soundproofing wall with at least one in the operating position of the soundproofing element of the sound source facing insulating layer of tubular plant material and at least one in the position of use of the soundproofing element of the sound source facing away layer of a curable binder.
- noise protection One of the central tasks of environmental and health protection is noise protection. Acoustic emissions, such as those caused by the vehicles driving along them along motorways or rail routes, place a high burden on neighbors. Structural measures, in particular soundproof walls, can effectively protect residential areas along such routes from noise. In this case, the height, material and distance of the noise protection wall to the sound source with regard to a good insulation effect of great importance. The material used and the surface condition of the same on the sound source side facing determines whether the incident sound is mainly absorbed or reflected.
- noise protection wall Depending on the material used for the noise barriers, the absorption rate and service life of the noise protection wall as well as production costs are very different. In terms of ecological construction, it is desirable to use resource-conserving and possibly renewable building materials and to abstain from toxic or otherwise harmful substances. At first glance, wooden noise protection walls fulfill these requirements, but in practice, the wood must be provided with chemicals to extend the service life, which means that it can not be used without hesitation.
- reed as a sound absorber is for example from the German Utility Model 92 12 474.7 known. It describes a soundproof wall which, in a kind of sandwich construction, contains sound-absorbing material between two wall elements, preferably waste material or excavated material from ground works. On the wall elements reed mats o. ⁇ . Are fixed in one or more layers on at least one side as sound insulation.
- the basic structure is any stable construction. The disadvantage, however, is the relatively high cost of building such a wall that can not be delivered and set up virtually prefabricated, but must be built on site.
- Object of the present invention is therefore to provide a soundproofing element of the initially mentioned kind, which has very good sound-insulating properties, consists of environmentally friendly materials and is inexpensive to manufacture.
- an above-mentioned soundproofing element in which the at least one insulating layer of tubular plant material and the at least one binder layer are arranged in a frame made of wood, and at least one binder layer is at least partially pressed into at least one insulating layer.
- the at least one insulating layer of tubular plant material takes from the sound source originating sound and absorbs it to a large extent.
- tubular plant materials for the insulating layer for example, reed, straw or bamboo come into question. These materials are very well suited for soundproofing, as they have excellent sound absorption due to their structure. In addition, such materials are often available in sufficient quantity and are therefore very inexpensive to purchase. Also, tubular plant materials can be processed relatively easily.
- the at least one binder layer prevents the sound from passing through the soundproofing element.
- the binder layer partially pressed into the insulating layer gives the insulating layer the requisite stability and strength which would not be present with the tubular vegetable material alone.
- At least one strip can be arranged on each side of the frame. By attaching one or more such strips falling out of the layers is prevented.
- connection of the strips can be formed for example by threaded rods and corresponding nuts.
- pressing of the layers can also be carried out without tools.
- reeds absorb the sound very well, mainly because of its structure, it is advantageous if at least one insulating layer consists of this material.
- reeds are considered to be largely rot-proof and is a low-cost, renewable resource that is easy to process and biodegradable.
- the binder layer is preferably made of the environmentally friendly building material loam.
- other pasty materials such as cement slurry, concrete or the like can be used.
- the frame of the soundproofing element is usually exposed to high stress from the weather, it is advantageous if this consists of heat-treated wood, since such a treated wood is more resistant and thus more durable.
- the use of chemicals for impregnation can be dispensed with in heat treated wood.
- At least one further insulating layer on the side of the binder layer facing away from the operating position of the sound source.
- This additional layer also has the function of protecting the binder layer from the effects of the weather, in particular moisture.
- the at least one further insulating layer is likewise formed from vegetable tubular material, in particular reeds.
- the at least one further insulating layer may be formed of cork, since cork is also a renewable raw material and has good sound insulation properties.
- the additional insulating layer of hemp can be formed.
- the at least one insulating layer is treated with a fire retardant, preferably an intumescent agent in the event of fire.
- At least the outer insulating layer is preferably arranged so that the tubular plant material of the insulating layer is oriented substantially vertically in the position of use. This allows rainwater to run better and not penetrate deeper into the layer. In addition, such an arrangement provides for improved stability.
- the tubular plant material of superimposed insulating layers can also be at an angle, preferably of substantially 90 °, be oriented to each other. This crosswise arrangement further increases the stability and also reduces the sound transmission.
- the insulating layer facing the sound source consists of reeds with a thickness of 20-120 mm, the binder layer of clay with a thickness of about 3-20 mm and the further insulation layer of reed with a thickness of approx. 10-60 mm, as in this area an optimal ratio between the respective layer thicknesses and the achieved sound absorption is achieved.
- practical experiments were carried out using loam as a binder and reed as a tubular plant material.
- a cover element connected to the frame with openings for receiving the sound, at least on the side facing the sound source in the position of use.
- the cover is formed by lamellar spaced from each other arranged strips.
- a louver-like arrangement of slats obliquely to the vertical direction can also drain rainwater better.
- the cover may be formed by a perforated plate.
- the object of the invention is also achieved by an above-mentioned method for producing a soundproofing element, in which the at least one insulating layer is arranged in a frame made of wood, then a layer of the curable binder in liquid or pasty form on the in the position of use the soundproofing element of the sound source side facing away from the at least one insulating layer is applied, and the binder layer is pressed in still liquid or pasty form in the insulating layer.
- the sound insulation elements described above can be relatively quickly and inexpensively. When pressing the binder this penetrates between the individual elements of the tubular material and acts after curing as a barrier to the sound and additionally as a reinforcement for the insulating layer.
- the layer of curable binder may conveniently be sprayed onto the insulating layer.
- the curable binder can be brushed onto the insulating layer with the aid of a suitable tool. Both methods allow a uniform application of the binder on the entire surface in a short time.
- At least one further insulating layer can be arranged on the side facing away from the soundproofing element in the position of use of the soundproofing element.
- An optimal reinforcement is achieved in that the at least one insulating layer, the at least one binder layer and any other insulating layers are pressed using both sides of the frame arranged strips.
- the at least one insulating layer and any further insulating layers can be treated with a fire retardant, preferably an intumescent agent in the event of fire.
- the at least one insulating layer and any further insulating layers are treated with a pest-protecting agent.
- the attachment to the in the position of use of the soundproofing element of the sound source side facing a Abdeckelements with openings for receiving the sound not only improves the sound insulation, but also offers the opportunity to achieve a visually appealing solution.
- the protection against the weather, especially rainwater, can be improved.
- Fig. 1 is a soundproofing element 1 as seen from the sound source in side view.
- the soundproofing element 1 has a frame 4 made of wood, in which at least one insulating layer 2, 2 'of tubular plant material and at least one layer 3 of a curable binder are arranged.
- the frame 4 is preferably made of heat treated wood, so that it withstands the weather longer.
- the embodiment shown consists of two insulating layers 2, 2 'facing the sound source in the position of use of the soundproofing element 1 and a further insulating layer 2 ", which is arranged on the side facing away from the sound source.
- the tubular plant material of the outer, the sound source facing insulation layer 2 ' is arranged substantially vertically. This gives the soundproofing element 1 a higher stability and also facilitates the drainage of rainwater.
- the insulating layer 2 arranged behind it has an orientation which is rotated by 90 ° with respect to the insulating layer 2 ', ie the tubular, vegetable material is orientated substantially horizontally.
- the binder layer 3 for example made of clay, is partially pressed into the insulating layer 2.
- a further insulating layer 2 '' is arranged, in which the binder layer 3 may also be pressed.
- the frame 4 surrounds the insulating layers 2, 2 ', 2 "and the binding agent layer 3 and gives the soundproofing element 1.
- a corresponding stability is provided by the strips 5 arranged on the outside of the frame 4, causing the insulating layers 2, 2', 2 '' and the binder layer 3 is prevented from the frame 4.
- the opposing strips 5 can be connected to one another, for example by means of threaded rods 6 and corresponding nuts 7. In this way, the insulating layers 2, 2 ', 2 "and binder layer 3 can be pressed.
- Fig. 3 shows a sectional view through a preferred embodiment of a soundproofing element 1 consisting of two in the use position of the sound source facing insulation layers 2, 2 'of reeds with a total thickness d 1 of 100 mm, a binder layer 3 of clay with a thickness d 2 of 10 mm and an insulating layer 2 "facing away from the sound source in the position of use, with a thickness d 3 of 20 mm, with such a soundproofing element 1 with a total thickness d of approximately 125 mm (by the pressing of the clay reduces the calculated total thickness of 130 mm) insulation values of 29 dB could be achieved.
- Fig. 4 shows a sectional view of a multi-layer acoustic insulation element 1, wherein two binder layers 3, 3 'between three insulating layers 2, 2', 2 '' are arranged.
- the binder layer 3 is partially pressed into the insulating layers 2, 2 'and the binder layer 3' partially in the insulating layers 2 ', 2''.
- Such a soundproofing element 1 is even more stable and has even better insulation properties.
- a further embodiment of a part of a soundproofing element 1 is shown in a perspective view.
- a cover 8 is provided with openings 9 for receiving the sound at the sound source side facing, which is formed in the embodiment shown here by lamellar spaced-apart strips 10.
- the sound to be absorbed penetrates through the openings 9 between the strips 10 of the cover 8 and is absorbed by the arranged inside the frame 4 insulating layers (not shown) accordingly.
- a cover member 8 which may be constructed in various ways, gives the soundproofing element 1 a pleasing appearance and additionally protects the insulating layers of tubular plant material arranged behind it from the effects of weathering.
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Abstract
Description
Die Erfindung betrifft ein Schallschutzelement mit zumindest einer in der Gebrauchslage der Schallquelle zugewandten Dämmschicht aus röhrenförmigem pflanzlichen Material und zumindest einer in der Gebrauchslage der Schallquelle abgewandten Schicht eines aushärtbaren Bindemittels.The invention relates to a soundproofing element with at least one in the position of use of the sound source facing insulating layer of tubular plant material and at least one remote in the position of use of the sound source layer of a curable binder.
Weiters betrifft die Erfindung ein Verfahren zur Herstellung einer solchen Schallschutzwand mit zumindest einer in der Gebrauchslage des Schallschutzelements der Schallquelle zugewandten Dämmschicht aus röhrenförmigem pflanzlichen Material und zumindest einer in der Gebrauchslage des Schallschutzelements der Schallquelle abgewandten Schicht eines aushärtbaren Bindemittels.Furthermore, the invention relates to a method for producing such a soundproofing wall with at least one in the operating position of the soundproofing element of the sound source facing insulating layer of tubular plant material and at least one in the position of use of the soundproofing element of the sound source facing away layer of a curable binder.
Eine der zentralen Aufgaben des Umwelt- und Gesundheitsschutzes ist der Lärmschutz. Schallemissionen, wie sie entlang von Autostraßen oder Schienenstrecken von den darauf verkehrenden Fahrzeugen verursacht werden, stellen für Anrainer eine hohe Belastung dar. Durch bauliche Maßnahmen, wie insbesondere Schallschutzwände, können Wohngebiete, die entlang solcher Strecken liegen, effektiv vor dem Lärm geschützt werden. Dabei sind Höhe, Material sowie Abstand der Lärmschutzwand zur Schallquelle hinsichtlich einer guten Dämmwirkung von großer Bedeutung. Das eingesetzte Material sowie die Oberflächenbeschaffenheit desselben auf der der Schallquelle zugewandten Seite legt fest, ob der auftreffende Schall vorwiegend absorbiert oder reflektiert wird. Glatte Beton-, Glas-, Plexiglas-, Metall- sowie Kunststoffwände, die vielfach beidseitig an Autobahnen und Zugstrecken aufgestellt sind, reflektieren den Großteil des Schalls lediglich und sorgen somit für eine verminderte Lärmdämmung an der gegenüberliegenden Lärmschutzwand, da der Schall dort in einem flacheren Winkel auftrifft und somit eher in die lärmgeschützte Zone hinein gebeugt wird.One of the central tasks of environmental and health protection is noise protection. Acoustic emissions, such as those caused by the vehicles driving along them along motorways or rail routes, place a high burden on neighbors. Structural measures, in particular soundproof walls, can effectively protect residential areas along such routes from noise. In this case, the height, material and distance of the noise protection wall to the sound source with regard to a good insulation effect of great importance. The material used and the surface condition of the same on the sound source side facing determines whether the incident sound is mainly absorbed or reflected. Smooth concrete, glass, Plexiglas, metal and plastic walls, which are often located on both sides of highways and railway lines, reflect the majority of the sound only and thus provide reduced noise insulation on the opposite noise barrier, as the sound there in a flatter Angle impinges and is thus more diffracted into the noise-protected zone.
Je nach verwendetem Material für die Lärmschutzwände sind Absorptionsrate und Lebensdauer der Lärmschutzwand sowie Herstellungskosten sehr unterschiedlich. Im Sinne einer ökologischen Bauweise ist es erstrebenswert, Ressourcen-schonende und gegebenenfalls nachwachsende Baustoffe einzusetzen und auf toxische bzw. anderweitig gesundheitsschädigende Substanzen zu verzichten. Auf den ersten Blick erfüllen Lärmschutzwände aus Holz diese Voraussetzungen, in der Praxis muss das Holz jedoch zur Verlängerung der Lebensdauer mit Chemikalien versehen werden, wodurch es nicht bedenkenlos eingesetzt werden kann.Depending on the material used for the noise barriers, the absorption rate and service life of the noise protection wall as well as production costs are very different. In terms of ecological construction, it is desirable to use resource-conserving and possibly renewable building materials and to abstain from toxic or otherwise harmful substances. At first glance, wooden noise protection walls fulfill these requirements, but in practice, the wood must be provided with chemicals to extend the service life, which means that it can not be used without hesitation.
Die Verwendung von Schilf als Schallabsorber ist zum Beispiel aus der Deutschen Gebrauchsmusterschrift
Die hervorragenden Dämmungseigenschaften von Lehm werden in der
Aufgabe der vorliegenden Erfindung ist es demzufolge, ein Schallschutzelement der eingangs angeführten Art zu schaffen, welches sehr gute schalldämmende Eigenschaften aufweist, aus umweltfreundlichen Materialien besteht und kostengünstig herzustellen ist.Object of the present invention is therefore to provide a soundproofing element of the initially mentioned kind, which has very good sound-insulating properties, consists of environmentally friendly materials and is inexpensive to manufacture.
Diese Aufgabe wird durch ein oben genanntes Schallschutzelement gelöst, bei dem die zumindest eine Dämmschicht aus röhrenförmigem pflanzlichen Material und die zumindest eine Bindemittelschicht in einem Rahmen aus Holz angeordnet sind, und zumindest eine Bindemittelschicht zumindest teilweise in zumindest eine Dämmschicht eingepresst ist. Die zumindest eine Dämmschicht aus röhrenförmigem pflanzlichen Material nimmt den von der Schallquelle herrührenden Schall auf und absorbiert ihn zu einem großen Teil. Als röhrenförmige pflanzliche Materialien für die Dämmschicht kommen beispielsweise Schilf, Stroh oder Bambus in Frage. Diese Materialien sind sehr gut zur Schalldämmung geeignet, da sie aufgrund ihrer Struktur über eine exzellente Schallabsorption verfügen. Außerdem stehen derartige Materialien häufig in ausreichender Menge zur Verfügung und sind daher sehr kostengünstig zu erwerben. Auch lassen sich röhrenförmige pflanzliche Materialien relativ leicht verarbeiten. Aufgrund der pflanzlichen Natur der Materialien der Dämmschicht sind derartige Materialien bedenkenlos entsorgbar, da sie biologisch abbaubar sind und keine Problemstoffe enthalten. Die zumindest eine Bindemittelschicht verhindert ein Durchtreten des Schalls durch das Schallschutzelement. Zusätzlich verleiht die teilweise in die Dämmschicht eingepresste Bindemittelschicht der Dämmschicht die erforderliche Stabilität und Festigkeit, welche beim röhrenförmigen pflanzlichen Material alleine nicht gegeben wäre. Durch die Kombination zumindest einer solchen Dämmschicht und Bindemittelschicht können gute Schalldämmwerte auch bei geringen Dicken der Schallschutzelemente und somit geringen Herstellungskosten und geringem Gewicht erzielt werden. Da derartige Schallschutzelemente, wie sie in Form von Schallschutzwänden beispielsweise entlang von Autostraßen und Zugstrecken angeordnet sind, große Angriffsflächen für Winde darstellen, wird ein Rahmen aus Holz zur Verstärkung angeordnet. Durch einen solchen Rahmen wird auch der Transport des gesamten Schallschutzelements wesentlich vereinfacht und auch die Montage am Einsatzort beschleunigt.This object is achieved by an above-mentioned soundproofing element, in which the at least one insulating layer of tubular plant material and the at least one binder layer are arranged in a frame made of wood, and at least one binder layer is at least partially pressed into at least one insulating layer. The at least one insulating layer of tubular plant material takes from the sound source originating sound and absorbs it to a large extent. As tubular plant materials for the insulating layer, for example, reed, straw or bamboo come into question. These materials are very well suited for soundproofing, as they have excellent sound absorption due to their structure. In addition, such materials are often available in sufficient quantity and are therefore very inexpensive to purchase. Also, tubular plant materials can be processed relatively easily. Due to the plant nature of the materials of the insulating layer such materials are safe to dispose of because they are biodegradable and contain no problematic substances. The at least one binder layer prevents the sound from passing through the soundproofing element. In addition, the binder layer partially pressed into the insulating layer gives the insulating layer the requisite stability and strength which would not be present with the tubular vegetable material alone. By combining at least one such insulating layer and binder layer good sound insulation values can be achieved even with small thicknesses of the sound insulation elements and thus low production costs and low weight. Since such soundproofing elements, as they are arranged in the form of noise barriers, for example, along motorways and train routes, constitute large attack surfaces for winds, a frame made of wood for reinforcement is arranged. By such a framework, the transport of the entire soundproofing element is considerably simplified and also speeds up the installation at the site.
Zur weiteren Erhöhung der Stabilität des Schallschutzelements kann beidseitig am Rahmen jeweils zumindest eine Leiste angeordnet sein. Durch die Anbringung einer oder mehrerer solcher Leisten wird ein Herausfallen der Schichten verhindert.To further increase the stability of the soundproofing element, at least one strip can be arranged on each side of the frame. By attaching one or more such strips falling out of the layers is prevented.
Sind diese an den Seiten des Rahmens angeordneten Leisten miteinander verbunden, so kann die Stabilität der Konstruktion zusätzlich erhöht werden. Durch die Verbindung der Leisten können die dazwischen angeordneten Schichten des Schallschutzelements auch miteinander verpresst werden.If these strips arranged on the sides of the frame are connected to one another, the stability of the construction can be additionally increased. As a result of the connection of the strips, the layers of the soundproofing element arranged therebetween can also be pressed together.
Diese Verbindung der Leisten kann beispielsweise durch Gewindestangen und entsprechende Muttern gebildet werden. Im Falle der Verwendung von Flügelmuttern kann das Verpressen der Schichten auch werkzeuglos durchgeführt werden.This connection of the strips can be formed for example by threaded rods and corresponding nuts. In the case of using wing nuts, the pressing of the layers can also be carried out without tools.
Da Schilf vor allem aufgrund seiner Struktur den Schall sehr gut absorbiert, ist es vorteilhaft, wenn zumindest eine Dämmschicht aus diesem Material besteht. Darüber hinaus gilt Schilf als weitgehend verrottungsfest und ist ein kostengünstiger, nachwachsender Rohstoff, der einfach zu verarbeiten und biologisch abbaubar ist.Since reeds absorb the sound very well, mainly because of its structure, it is advantageous if at least one insulating layer consists of this material. In addition, reeds are considered to be largely rot-proof and is a low-cost, renewable resource that is easy to process and biodegradable.
Wegen seiner hervorragenden schalldämmenden Eigenschaften sowie der guten Verfügbarkeit und niedrigen Kosten besteht die Bindemittelschicht bevorzugt aus dem umweltfreundlichen Baustoff Lehm. Es können jedoch auch andere pastöse Materialien wie Zementschlämme, Beton oder dergl., eingesetzt werden.Because of its excellent sound-insulating properties and good availability and low cost, the binder layer is preferably made of the environmentally friendly building material loam. However, other pasty materials such as cement slurry, concrete or the like can be used.
Da der Rahmen des Schallschutzelements üblicherweise einer hohen Beanspruchung durch Witterung ausgesetzt ist, ist es vorteilhaft, wenn dieser aus wärmebehandeltem Holz besteht, da ein derartig behandeltes Holz widerstandsfähiger und somit langlebiger ist. Auf den Einsatz von Chemikalien zum Imprägnieren kann bei wärmebehandeltem Holz verzichtet werden.Since the frame of the soundproofing element is usually exposed to high stress from the weather, it is advantageous if this consists of heat-treated wood, since such a treated wood is more resistant and thus more durable. The use of chemicals for impregnation can be dispensed with in heat treated wood.
Um eine höhere Schalldämmung zu erzielen und auch aus optischen Gründen kann es günstig sein, an der in der Gebrauchslage der Schallquelle abgewandten Seite der Bindemittelschicht zumindest eine weitere Dämmschicht anzuordnen. Diese zusätzliche Schicht hat auch noch die Funktion, die Bindemittelschicht vor Witterungseinflüssen, insbesondere Feuchtigkeit, zu schützen.In order to achieve a higher sound insulation and also for optical reasons, it may be favorable to arrange at least one further insulating layer on the side of the binder layer facing away from the operating position of the sound source. This additional layer also has the function of protecting the binder layer from the effects of the weather, in particular moisture.
Hinsichtlich einer umweltfreundlichen Ausgestaltung des Schallschutzelements ist es von Vorteil, wenn die zumindest eine weitere Dämmschicht ebenfalls aus pflanzlichem röhrenförmigen Material, insbesondere Schilf, gebildet ist.With regard to an environmentally friendly design of the soundproofing element, it is advantageous if the at least one further insulating layer is likewise formed from vegetable tubular material, in particular reeds.
Alternativ kann die zumindest eine weitere Dämmschicht aus Kork gebildet sein, da Kork ebenfalls ein nachwachsender Rohstoff ist und über gute Schalldämmungseigenschaften verfügt.Alternatively, the at least one further insulating layer may be formed of cork, since cork is also a renewable raw material and has good sound insulation properties.
Da auch Hanf hervorragende Schalldämmung aufweist, kann in einer weiteren Ausbildungsform die zusätzliche Dämmschicht aus Hanf gebildet sein.Since hemp also has excellent sound insulation, in another embodiment, the additional insulating layer of hemp can be formed.
Da trockenes pflanzliches Material häufig leicht entflammbar ist und somit im Falle eines Brandes eine Gefahrenquelle darstellt, da ein Ausbreiten der Flammen begünstigt wird, ist es von Vorteil, wenn die zumindest eine Dämmschicht mit einem Brandschutzmittel, vorzugsweise einem im Brandfall aufschäumenden Mittel, behandelt ist.Since dry plant material is often highly flammable and thus constitutes a source of danger in the event of fire, since spreading of the flames is favored, it is advantageous if the at least one insulating layer is treated with a fire retardant, preferably an intumescent agent in the event of fire.
Hinsichtlich einer längeren Haltbarkeit ist es vorteilhaft, die Schädlingsresistenz der zumindest einen Dämmschicht aus röhrenförmigem pflanzlichen Material zu erhöhen und eine Behandlung mit einem Mittel zum Schutz vor Schädlingen vorzusehen.With regard to a longer shelf life, it is advantageous to increase the pest resistance of the at least one insulating layer of tubular plant material and to provide a treatment with an agent for protection against pests.
Gerade bei langen Autobahnstrecken haben Schallschutzwände einen nicht zu unterschätzenden Effekt auf Autofahrer. Einerseits bewirken die sich ständig wiederholenden Elemente eine Ermüdung, andererseits stößt die oft unansehnliche Ausführung vieler Beton- oder Metallwände auf Ablehnung. Durch eine optisch ansprechende Ausgestaltung wird die Akzeptanz einer Schallschutzwand erhöht. Dazu ist es vorteilhaft, wenn die in der Gebrauchslage der Schallquelle zugewandte Seite und bzw. oder die in der Gebrauchslage der Schallquelle abgewandte Seite eingefärbt ist bzw. sind.Especially with long motorway routes soundproofing walls have a not to be underestimated effect on motorists. On the one hand, the repetitive elements cause fatigue, on the other hand encounters the often unsightly execution of many concrete or metal walls on rejection. By a visually appealing design, the acceptance of a soundproof wall is increased. For this purpose, it is advantageous if the side facing the sound source in the position of use and / or the side facing away from the sound source in the position of use is or are colored.
Bei einer Aufstellung des Schallschutzelements im Freien wird zumindest die außenliegende Dämmschicht vorzugsweise so angeordnet, dass das röhrenförmige pflanzliche Material der Dämmschicht in der Gebrauchslage im Wesentlichen senkrecht orientiert ist. Dadurch kann Regenwasser besser abrinnen und nicht tiefer in die Schicht eindringen. Darüber hinaus sorgt eine derartige Anordnung für eine verbesserte Stabilität.In an installation of the soundproofing element outdoors, at least the outer insulating layer is preferably arranged so that the tubular plant material of the insulating layer is oriented substantially vertically in the position of use. This allows rainwater to run better and not penetrate deeper into the layer. In addition, such an arrangement provides for improved stability.
Alternativ zu einer parallelen Ausrichtung des röhrenförmigen pflanzlichen Materials mehrerer Dämmschichten kann das röhrenförmige pflanzliche Material übereinander liegender Dämmschichten auch in einem Winkel, vorzugsweise von im Wesentlichen 90°, zueinander orientiert sein. Durch diese kreuzweise Anordnung wird die Stabilität zusätzlich erhöht und auch die Schalldurchlässigkeit verringert.As an alternative to a parallel orientation of the tubular plant material of a plurality of insulating layers, the tubular plant material of superimposed insulating layers can also be at an angle, preferably of substantially 90 °, be oriented to each other. This crosswise arrangement further increases the stability and also reduces the sound transmission.
In einer bevorzugten Ausführungsform besteht die der Schallquelle zugewandte Dämmschicht aus Schilf mit einer Dicke von 20-120 mm, die Bindemittelschicht aus Lehm mit einer Dicke von ca. 3-20 mm und die der Schallquelle abgewandte weitere Dämmschicht aus Schilf mit einer Dicke von ca. 10-60 mm, da in diesem Bereich ein optimales Verhältnis zwischen den jeweiligen Schichtdicken und der erreichten Schallabsorption erreicht wird. Zur Bestimmung der geeigneten Schichtdicken wurden praktische Versuche durchgeführt, wobei Lehm als Bindemittel und Schilf als röhrenförmiges pflanzliches Material verwendet wurden. Bei einem Schallschutzelement, bei dem eine durchschnittlich 10 mm dicke Lehmschicht zwischen einer 20 mm und einer der Schallquelle zugewandten 100 mm dicken Schilfschicht verpresst wurde, konnte ein Labor-Schalldämm-Maß (Rw-Wert nach DIN EN 20140-3) von 29 dB erzielt werden.In a preferred embodiment, the insulating layer facing the sound source consists of reeds with a thickness of 20-120 mm, the binder layer of clay with a thickness of about 3-20 mm and the further insulation layer of reed with a thickness of approx. 10-60 mm, as in this area an optimal ratio between the respective layer thicknesses and the achieved sound absorption is achieved. In order to determine the appropriate layer thicknesses, practical experiments were carried out using loam as a binder and reed as a tubular plant material. In a soundproofing element in which an average 10 mm thick layer of clay between a 20 mm and the sound source facing 100 mm thick reed layer was pressed, a laboratory sound reduction index (R w value according to DIN EN 20140-3) of 29 dB be achieved.
Um eine verbesserte Schalldämmung zu erzielen sowie hinsichtlich einer optisch ansprechenden Ausgestaltung ist es günstig, zumindest an der in der Gebrauchslage der Schallquelle zugewandten Seite ein mit dem Rahmen verbundenes Abdeckelement mit Öffnungen zur Aufnahme des Schalls vorzusehen.In order to achieve an improved sound insulation and with regard to a visually appealing embodiment, it is favorable to provide a cover element connected to the frame with openings for receiving the sound, at least on the side facing the sound source in the position of use.
In einer besonders bevorzugten Ausführungsform ist das Abdeckelement durch lamellenartig voneinander beabstandet angeordnete Leisten gebildet. Bei einer jalousieartigen Anordnung der Lamellen schräg zur senkrechten Richtung kann außerdem Regenwasser besser abrinnen.In a particularly preferred embodiment, the cover is formed by lamellar spaced from each other arranged strips. In a louver-like arrangement of slats obliquely to the vertical direction can also drain rainwater better.
Alternativ dazu kann das Abdeckelement durch eine Lochplatte gebildet sein.Alternatively, the cover may be formed by a perforated plate.
Gelöst wird die erfindungsgemäße Aufgabe auch durch ein oben genanntes Verfahren zur Herstellung eines Schallschutzelements, bei dem die zumindest eine Dämmschicht in einem Rahmen aus Holz angeordnet wird, anschließend eine Schicht des aushärtbaren Bindemittels in flüssiger oder pastöser Form auf die in der Gebrauchslage des Schallschutzelements der Schallquelle abgewandten Seite der zumindest einen Dämmschicht aufgebracht wird, und die Bindemittelschicht in noch flüssiger oder pastöser Form in die Dämmschicht eingepresst wird. Auf diese Weise lassen sich die oben beschriebenen Schallschutzelemente relativ rasch und kostengünstig herstellen. Beim Verpressen des Bindemittels dringt dieses zwischen die einzelnen Elemente des röhrenförmigen Materials und wirkt nach dem Aushärten als Barriere für den Schall und zusätzlich als Armierung für die Dämmschicht.The object of the invention is also achieved by an above-mentioned method for producing a soundproofing element, in which the at least one insulating layer is arranged in a frame made of wood, then a layer of the curable binder in liquid or pasty form on the in the position of use the soundproofing element of the sound source side facing away from the at least one insulating layer is applied, and the binder layer is pressed in still liquid or pasty form in the insulating layer. In this way, the sound insulation elements described above can be relatively quickly and inexpensively. When pressing the binder this penetrates between the individual elements of the tubular material and acts after curing as a barrier to the sound and additionally as a reinforcement for the insulating layer.
Die Schicht des aushärtbaren Bindemittels kann praktischerweise auf die Dämmschicht aufgespritzt werden.The layer of curable binder may conveniently be sprayed onto the insulating layer.
Alternativ dazu kann das aushärtbare Bindemittel auf die Dämmschicht mit Hilfe eines entsprechenden Werkzeugs aufgestrichen werden. Beide Methoden erlauben ein gleichmäßiges Auftragen des Bindemittels auf die gesamte Fläche in kurzer Zeit.Alternatively, the curable binder can be brushed onto the insulating layer with the aid of a suitable tool. Both methods allow a uniform application of the binder on the entire surface in a short time.
Um die Schalldämmung zu verbessern sowie die Bindemittelschicht vor eventuell auftretender Feuchtigkeit zu schützen, kann an der in der Gebrauchslage des Schallschutzelements der Schallquelle abgewandten Seite zumindest eine weitere Dämmschicht angeordnet werden.In order to improve the sound insulation and to protect the binder layer from any moisture that may occur, at least one further insulating layer can be arranged on the side facing away from the soundproofing element in the position of use of the soundproofing element.
Eine optimale Armierung wird dadurch erreicht, dass die zumindest eine Dämmschicht, die zumindest eine Bindemittelschicht und allfällige weitere Dämmschichten mit Hilfe beiderseits am Rahmen angeordneter Leisten verpresst werden.An optimal reinforcement is achieved in that the at least one insulating layer, the at least one binder layer and any other insulating layers are pressed using both sides of the frame arranged strips.
Um die Brandgefahr des Schallschutzelements zu minimieren, können die zumindest eine Dämmschicht und allfällige weitere Dämmschichten mit einem Brandschutzmittel, vorzugsweise einem im Brandfall aufschäumenden Mittel, behandelt werden.In order to minimize the risk of fire of the soundproofing element, the at least one insulating layer and any further insulating layers can be treated with a fire retardant, preferably an intumescent agent in the event of fire.
Für eine höhere Lebensdauer des pflanzlichen Materials ist es günstig, wenn die zumindest eine Dämmschicht und allfällige weitere Dämmschichten mit einem Mittel zum Schutz vor Schädlingen behandelt werden.For a longer life of the vegetable material, it is favorable if the at least one insulating layer and any further insulating layers are treated with a pest-protecting agent.
Eine optisch ansprechende Lösung ergibt sich, wenn die in der Gebrauchslage des Schallschutzelements der Schallquelle zugewandte Seite und bzw. oder die der Schallquelle abgewandte Seite eingefärbt wird.A visually appealing solution results, if in the Operating position of the soundproofing element of the sound source facing side and / or the side facing away from the sound source is colored.
Das Anbringen an der in der Gebrauchslage des Schallschutzelements der Schallquelle zugewandten Seite eines Abdeckelements mit Öffnungen zur Aufnahme des Schalls verbessert nicht nur die Schalldämmung, sondern bietet auch die Möglichkeit, eine optisch ansprechende Lösung zu erzielen. Darüber hinaus kann der Schutz vor Witterungseinflüssen, insbesondere Regenwasser, verbessert werden.The attachment to the in the position of use of the soundproofing element of the sound source side facing a Abdeckelements with openings for receiving the sound not only improves the sound insulation, but also offers the opportunity to achieve a visually appealing solution. In addition, the protection against the weather, especially rainwater, can be improved.
Die Erfindung wird nachstehend anhand von in den Zeichnungen dargestellten bevorzugten Ausführungsbeispielen, auf die sie jedoch nicht beschränkt sein soll, noch näher erläutert.The invention will be explained in more detail below with reference to preferred embodiments illustrated in the drawings, to which, however, it should not be restricted.
Darin zeigen:
-
Fig. 1 eine Vorderansicht eines Schallschutzelements gemäß vorliegender Erfindung; -
Fig. 2 ein Schnittbild durch das Schallschutzelement gemäßFig. 1 entlang der Schnittlinie II-II; -
Fig. 3 ein Schnittbild durch einen Teil einer anderen Ausführungsform eines Schallschutzelements; -
Fig. 4 einen Ausschnitt einer Seitenansicht des Schallschutzelements; und -
Fig. 5 eine alternative Ausführungsform des Schallschutzelements in perspektivischer Ansicht.
-
Fig. 1 a front view of a soundproofing element according to the present invention; -
Fig. 2 a sectional view through the soundproofing element according toFig. 1 along the section line II-II; -
Fig. 3 a sectional view through a part of another embodiment of a soundproofing element; -
Fig. 4 a section of a side view of the soundproofing element; and -
Fig. 5 an alternative embodiment of the soundproofing element in a perspective view.
In
Wie aus dem Schnittbild gemäß
Der Rahmen 4 umgibt die Dämmschichten 2, 2', 2" und die Bindemittelschicht 3 und verleiht dem Schallschutzelement 1 eine entsprechende Stabilität. Über die außen am Rahmen 4 gegenüberliegend angeordneten Leisten 5 wird ein Herausfallen der Dämmschichten 2, 2', 2'' und der Bindemittelschicht 3 aus dem Rahmen 4 verhindert. Zusätzlich können die gegenüberliegenden Leisten 5 beispielsweise über Gewindestangen 6 und entsprechende Muttern 7 miteinander verbunden werden. Auf diese Weise können die Dämmschichten 2, 2', 2'' und Bindemittelschicht 3 verpresst werden.The
In
Claims (29)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0030407U AT10000U1 (en) | 2007-05-14 | 2007-05-14 | SOUNDPROOFING ELEMENT AND METHOD FOR THE PRODUCTION THEREOF |
Publications (2)
Publication Number | Publication Date |
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EP1992740A1 true EP1992740A1 (en) | 2008-11-19 |
EP1992740B1 EP1992740B1 (en) | 2009-12-09 |
Family
ID=39367402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP08450079A Expired - Fee Related EP1992740B1 (en) | 2007-05-14 | 2008-05-14 | Sound protection element and method for its production |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1992740B1 (en) |
AT (2) | AT10000U1 (en) |
DE (2) | DE202008005319U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023028635A1 (en) | 2021-09-02 | 2023-03-09 | Van Duyvenbode Birgit | Soundproofing element made of tubular plant stalks |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020127998A1 (en) | 2020-10-23 | 2022-04-28 | Eichhorn-Verwaltungs-GmbH | Acoustic element for sound absorption |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9003145U1 (en) * | 1990-03-17 | 1990-06-21 | Holding Riede B.V., Boskoop | Soundproof wall |
DE9212474U1 (en) | 1992-05-25 | 1993-01-21 | Suleiman, Rateb, 8024 Deisenhofen | Soundproof wall |
DE29703284U1 (en) | 1997-02-11 | 1997-04-10 | Pro Umwelt Gesellschaft zur ökologischen Sanierung mbH, 10119 Berlin | Plantable soundproofing wall |
JP2002121876A (en) * | 2000-10-16 | 2002-04-26 | Kinshiro Nakamura | Mud wall for wooden house and the like |
DE10210989A1 (en) * | 2002-03-13 | 2003-10-09 | Robert Kuhnhenn | Noise protection wall for use against traffic noise, consists of a sound absorbing and/or reflecting bamboo layer, formed from adjacent bamboo rods and layer material behind them |
KR100419113B1 (en) * | 2003-04-09 | 2004-02-18 | 청호환경개발주식회사 | A bamboo soundprooting wall consists of fixed structures |
-
2007
- 2007-05-14 AT AT0030407U patent/AT10000U1/en not_active IP Right Cessation
-
2008
- 2008-04-17 DE DE202008005319U patent/DE202008005319U1/en not_active Expired - Lifetime
- 2008-05-14 DE DE502008000236T patent/DE502008000236D1/en active Active
- 2008-05-14 AT AT08450079T patent/ATE451500T1/en active
- 2008-05-14 EP EP08450079A patent/EP1992740B1/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9003145U1 (en) * | 1990-03-17 | 1990-06-21 | Holding Riede B.V., Boskoop | Soundproof wall |
DE9212474U1 (en) | 1992-05-25 | 1993-01-21 | Suleiman, Rateb, 8024 Deisenhofen | Soundproof wall |
DE29703284U1 (en) | 1997-02-11 | 1997-04-10 | Pro Umwelt Gesellschaft zur ökologischen Sanierung mbH, 10119 Berlin | Plantable soundproofing wall |
JP2002121876A (en) * | 2000-10-16 | 2002-04-26 | Kinshiro Nakamura | Mud wall for wooden house and the like |
DE10210989A1 (en) * | 2002-03-13 | 2003-10-09 | Robert Kuhnhenn | Noise protection wall for use against traffic noise, consists of a sound absorbing and/or reflecting bamboo layer, formed from adjacent bamboo rods and layer material behind them |
KR100419113B1 (en) * | 2003-04-09 | 2004-02-18 | 청호환경개발주식회사 | A bamboo soundprooting wall consists of fixed structures |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023028635A1 (en) | 2021-09-02 | 2023-03-09 | Van Duyvenbode Birgit | Soundproofing element made of tubular plant stalks |
Also Published As
Publication number | Publication date |
---|---|
ATE451500T1 (en) | 2009-12-15 |
EP1992740B1 (en) | 2009-12-09 |
AT10000U1 (en) | 2008-07-15 |
DE502008000236D1 (en) | 2010-01-21 |
DE202008005319U1 (en) | 2008-07-10 |
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