FR2657903A1 - Novel type of concrete panel for producing sound-insulating walls - Google Patents
Novel type of concrete panel for producing sound-insulating walls Download PDFInfo
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- FR2657903A1 FR2657903A1 FR9001485A FR9001485A FR2657903A1 FR 2657903 A1 FR2657903 A1 FR 2657903A1 FR 9001485 A FR9001485 A FR 9001485A FR 9001485 A FR9001485 A FR 9001485A FR 2657903 A1 FR2657903 A1 FR 2657903A1
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- 239000004567 concrete Substances 0.000 title claims abstract description 22
- 230000002745 absorbent Effects 0.000 claims abstract description 20
- 239000002250 absorbent Substances 0.000 claims abstract description 20
- 238000010521 absorption reaction Methods 0.000 claims abstract description 8
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 4
- 239000008187 granular material Substances 0.000 claims abstract description 3
- 238000000465 moulding Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 2
- UDHXJZHVNHGCEC-UHFFFAOYSA-N Chlorophacinone Chemical compound C1=CC(Cl)=CC=C1C(C=1C=CC=CC=1)C(=O)C1C(=O)C2=CC=CC=C2C1=O UDHXJZHVNHGCEC-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000010875 treated wood Substances 0.000 description 1
Classifications
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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
- E01F8/0029—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with porous surfaces, e.g. concrete with porous fillers
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- 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
- E04B1/8227—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 screens ; Arrangements of sound-absorbing elements, e.g. baffles
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8414—Sound-absorbing elements with non-planar face, e.g. curved, egg-crate 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
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
- E04B2001/8461—Solid slabs or blocks layered
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
- E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
- E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
- E04B2001/849—Groove or slot type openings
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
Description
NOUVEAU TYPE DE PANNEAU EN BETON POUR LA REALISATION DE
MURS ANTI-BRUITS.NEW TYPE OF CONCRETE PANEL FOR THE PRODUCTION OF
NOISE WALLS.
La présente invention a trait à un nouveau type de panneau en béton permettant la réalisation de murs antibruits. The present invention relates to a new type of concrete panel allowing the production of noise barriers.
De plus en plus, afin de protéger les personnes contre les nuisances occasionnées par le bruit, on interpose entre la source sonore et le site que l'on souhaite protéger des structures protectrices permettant d'absorber les ondes sonores. Increasingly, in order to protect people against the nuisance caused by noise, there is interposed between the sound source and the site that one wishes to protect, protective structures making it possible to absorb sound waves.
L'exemple le plus répandu est celui de la protection des habitations disposées à proximité des voies de communication, tels que les autoroutes. L'invention sera décrite plus particulièrement pour cette application, mais il est évident qu'elle pourrait être utilisée dans d'autres domaines, par exemple pour isoler des machines, installations.. bruyantes. The most common example is that of protecting homes located near communication routes, such as highways. The invention will be described more particularly for this application, but it is obvious that it could be used in other fields, for example to isolate noisy machines, installations.
La solution la plus couramment utilisée pour protéger des habitations (ou tout autre bâtiment) contre les bruits, consiste à interposer, entre la source de bruit (autoroute par exemple) et lesdites habitations, des murs dont la surface en regard de la source sonore a une structure telle qu'elle puisse absorber les sons. Pour ce faire, on utilise des surfaces non pas lisses, mais des surfaces présentant des parties en relief et en creux, par exemple sous la forme de nervures ondulées, d'alvéoles cylindriques ou en forme de nid d'abeille.. The most commonly used solution to protect dwellings (or any other building) against noise, consists in interposing, between the noise source (motorway for example) and said dwellings, walls whose surface facing the sound source has a structure such that it can absorb sounds. To do this, surfaces are used that are not smooth, but surfaces having raised and recessed portions, for example in the form of corrugated ribs, cylindrical cells or in the form of a honeycomb.
De tels murs sont très souvent réalisés à partir de panneaux préfabriqués réalisés en usine, et en général à partir de béton. Such walls are very often made from prefabricated panels made in the factory, and in general from concrete.
Or on a trouvé, et c'est ce qui fait l'objet de la présente invention, un perfectionnement apporté à la réalisation de tels panneaux préfabriqués qui, non seulement, permet d'en faciliter la mise en place et l'installation sur le site, mais également et surtout, augmente notablement les performances d'isolation acoustique par rapport aux solutions antérieures. However, we have found, and this is what is the subject of the present invention, an improvement made in the production of such prefabricated panels which, not only, makes it easier to set up and install on the site, but also and above all, significantly increases the sound insulation performance compared to previous solutions.
De tels résultats sont obtenus, conformément à l'invention, d'une part par le choix des matériaux entrant dans la constitution d'un tel panneau ainsi que, d'autre part, par la structure et configuration particulières de la surface destinée à absorber les bruits. Such results are obtained, in accordance with the invention, on the one hand by the choice of materials used in the constitution of such a panel as well as, on the other hand, by the particular structure and configuration of the surface intended to absorb the noises.
D'une manière générale, le panneau conforme à l'invention est obtenu par moulage à partir de deux compositions différentes de béton, associées entre elles de manière à former un complexe multicouches, dont l'une donne les caractéristiques mécaniques au panneau, et dont l'autre (ou les autres) présente un état de surface favorisant l'absorption des bruits, et il se caractérise en ce que
- la couche porteuse est constituée par un béton conventionnel dans lequel est noyée une armature de renforcement
- la couche absorbante est constituée d'un béton dans lequel sont incorporés des agrégats ou granulats permettant non seulement de l'alléger, mais également d'augmenter son pouvoir d'isolation, ladite couche absorbante se présentant sous la forme de cannelures parallèles dont la section vue en coupe est de forme générale pyramidale à paliers (ou degrés). In general, the panel according to the invention is obtained by molding from two different concrete compositions, associated together so as to form a multilayer complex, one of which gives the mechanical characteristics to the panel, and of which the other (or the others) has a surface condition favoring the absorption of noise, and it is characterized in that
- the load-bearing layer consists of conventional concrete in which a reinforcing reinforcement is embedded
- The absorbent layer consists of a concrete in which are incorporated aggregates or aggregates allowing not only to lighten it, but also to increase its insulating power, said absorbent layer being in the form of parallel grooves whose section view in section is generally pyramidal with steps (or degrees).
Selon une forme préférentielle d'un panneau conforme à l'invention qui facilite la mise en place d'une pluralité de panneaux non seulement les uns à côté des autres, mais également les uns au dessus des autres, la couche porteuse en béton conventionnel armé présente des bords débordants par rapport aux bords de la couche absorbante, cette couche porteuse comportant, par ailleurs, sur ses chants supérieur et inférieur, des moyens de jonction à un autre panneau ; de tels moyens de fixation peuvent par ailleurs être également prévus dans la couche porteuse afin de permettre sa fixation contre un support. According to a preferred form of a panel according to the invention which facilitates the installation of a plurality of panels not only next to each other, but also one above the other, the load-bearing layer of conventional reinforced concrete has edges projecting from the edges of the absorbent layer, this carrier layer further comprising, on its upper and lower edges, means for joining to another panel; such fixing means can also be provided in the carrier layer to allow its fixing against a support.
La couche porteuse a de préférence une épaisseur inférieure à celle de la couche absorbante. Par ailleurs, la profondeur des cannelures est avantageusement supérieure au pas entre les sommets de deux cannelures consécutives. Si éventuellement, plusieurs paliers successifs peuvent être envisagés sur les cannelures selon une forme de réalisation, lesdites cannelures comportent un seul palier intermédiaire. Enfin, comme agrégats ou granulats permettant d'alléger et d'améliorer les propriétés d'absorption des bruits de la couche absorbante, on utilisera par exemple des agrégats ou granulats du type obtenu conformément aux enseignements du FR-A2 499 551.Si dans la suite de la description, l'invention sera décrite pour un panneau comportant une seule face destinée à absorber les bruits, il est évident que l'invention couvre également les panneaux dont les deux faces ont une structure spécifique conforme à l'invention afin d'absorber les bruits. The carrier layer preferably has a thickness less than that of the absorbent layer. Furthermore, the depth of the grooves is advantageously greater than the pitch between the vertices of two consecutive grooves. If possibly, several successive bearings can be envisaged on the grooves according to one embodiment, said grooves comprise a single intermediate bearing. Finally, as aggregates or aggregates making it possible to lighten and improve the sound absorption properties of the absorbent layer, use will be made, for example, of aggregates or aggregates of the type obtained in accordance with the teachings of FR-A2 499 551. If in the following the description, the invention will be described for a panel comprising a single face intended to absorb noise, it is obvious that the invention also covers panels whose two faces have a specific structure in accordance with the invention in order to absorb noise.
L'invention et les avantages qu'elle apporte seront cependant mieux compris grâce à l'exemple de réalisation donné ci-après à titre indicatif mais non limitatif et qui est illustré par les schémas annexés dans lesquels
- les figures 1 et 2 sont respectivement des vues de face et de dessous d'un panneau conforme à l'invention et ;
- les figures 3 et 4 sont des vues de détail agrandies montrant un mode de réalisation de moyens intégrés à ce panneau pour faciliter la juxtaposition d'une pluralité de tels panneaux en vue de réaliser des murs de grandes dimensions et ;
- la figure 5 illustre de manière schématique une variante de la forme des cannelures d'un tel panneau.The invention and the advantages which it brings will however be better understood thanks to the example of embodiment given below for information but not limitation and which is illustrated by the appended diagrams in which
- Figures 1 and 2 are respectively front and bottom views of a panel according to the invention and;
- Figures 3 and 4 are enlarged detail views showing an embodiment of means integrated into this panel to facilitate the juxtaposition of a plurality of such panels in order to achieve large walls and;
- Figure 5 schematically illustrates a variant of the shape of the grooves of such a panel.
Les figures 1 et 2 illustrent vu en élévation (les parties cachées n'étant pas représentées sur cette figure 1), et vu de dessous (figure 2), un panneau en béton permettant la réalisation de murs anti-bruits. Figures 1 and 2 illustrate seen in elevation (the hidden parts not being shown in this figure 1), and seen from below (Figure 2), a concrete panel allowing the realization of anti-noise walls.
Ainsi que cela ressort de ces figures, un tel panneau se présente sous la forme d'une plaque rectangulaire, dont la hauteur et la largeur peuvent varier dans de grandes proportions et qui dépendront essentiellement des moules disponibles chez le fabricant. A titre indicatif, des panneaux ayant une hauteur de l'ordre de 1,50 mètre et une longueur comprise entre trois mètres et cinq mètres, peuvent être fabriqués sans problème particulier et conduisent à des ensembles dont le poids et les dimensions sont compatibles avec un transport et une mise en place ne nécessitant pas de moyens spécifiques. As is apparent from these figures, such a panel is in the form of a rectangular plate, the height and width of which can vary in large proportions and which will essentially depend on the molds available from the manufacturer. As an indication, panels having a height of the order of 1.50 meters and a length of between three meters and five meters, can be manufactured without any particular problem and lead to assemblies whose weight and dimensions are compatible with a transport and installation not requiring specific means.
Un tel panneau, désigné par la référence générale (1), est obtenu par moulage à partir de deux compositions différentes de béton et ce, de manière à former un complexe multicouches dont l'une, désignée par la référence générale (2), donne les caractéristiques mécaniques au panneau, et dont l'autre (ou les autres), désignées par la référence générale (3), présente un état de surface favorisant l'absorption des bruits. L'élévation (figure 1) montre le panneau conforme à l'invention vu sur sa face arrière, destinée à être disposée du côté de la zone que l'on souhaite protéger contre les bruits, la face avant (3) (vue à la figure 2) étant, quant à elle, destinée à être positionnée en regard de la zone sonore. Such a panel, designated by the general reference (1), is obtained by molding from two different concrete compositions, so as to form a multilayer complex, one of which, designated by the general reference (2), gives the mechanical characteristics of the panel, and of which the other (or the others), designated by the general reference (3), has a surface condition favoring the absorption of noise. The elevation (FIG. 1) shows the panel according to the invention seen on its rear face, intended to be placed on the side of the zone which it is desired to protect against noise, the front face (3) (seen on the Figure 2) being, for its part, intended to be positioned opposite the sound zone.
Dans l'exemple de réalisation illustré par les figures 1 et 2, le panneau conforme à l'invention est constitué de deux couches, mais il pourrait être envisagé d'emprisonner la couche porteuse (2) entre deux couches absorbantes (3).In the embodiment illustrated in Figures 1 and 2, the panel according to the invention consists of two layers, but it could be envisaged to trap the carrier layer (2) between two absorbent layers (3).
Dans l'exemple de réalisation illustré, la couche porteuse (2) est constituée par un béton conventionnel à l'intérieur duquel est noyée une armature de renforcement (non représentée). La couche absorbante (3) est, quant à elle, constituée d'un béton dans lequel sont incorporés des agrégats ou granulats permettant non seulement d'alléger, mais également d'augmenter son pouvoir d'isolation. De tels bétons, bien connus des techniciens, sont constitués d'un ciment conventionnel dans lequel on incorpore des granulats de bois traité (fibres ligno-cellulosiques) tels que décrits notamment dans le FR-A-2 489 551, et présentent déjà par eux-mêmes de très bonnes caractéristiques d'absorption phonique. In the exemplary embodiment illustrated, the load-bearing layer (2) consists of conventional concrete inside which a reinforcing reinforcement (not shown) is embedded. As for the absorbent layer (3), it consists of a concrete in which aggregates or aggregates are incorporated, making it possible not only to lighten, but also to increase its insulating power. Such concretes, well known to technicians, consist of a conventional cement in which granulates of treated wood are incorporated (lignocellulosic fibers) as described in particular in FR-A-2 489 551, and already present by them. - even very good sound absorption characteristics.
Conformément à l'invention, ces caractéristiques sont amélirorées en réalisant la couche absorbante (3) de telle sorte qu'elle présente une succession de cannelures parallèles (4) s'étendant sur toute la hauteur H du panneau. De telles cannelures (4) ont, ainsi que cela ressort de la figure 2, vue en coupe, une forme générale pyramidale à paliers ou degré. Dans l'exemple illustré, ces cannelures comportent un palier (5) sur leur hauteur. According to the invention, these characteristics are improved by producing the absorbent layer (3) so that it has a succession of parallel grooves (4) extending over the entire height H of the panel. Such grooves (4) have, as shown in Figure 2, sectional view, a general pyramidal shape with steps or degree. In the example illustrated, these grooves have a bearing (5) on their height.
Par ailleurs, il a été constaté qu'il était avantageux d'avoir une profondeur (PI) des cannelures supérieure au pas (P2) entre les sommets de deux cannelures successives.Furthermore, it was found that it was advantageous to have a depth (PI) of the grooves greater than the pitch (P2) between the vertices of two successive grooves.
Un tel panneau est obtenu par moulage en commençant, par réaliser la couche absorbante (3) en coulant le béton à l'intérieur d'un moule approprié et en le pilonnant. Such a panel is obtained by molding first, by making the absorbent layer (3) by pouring the concrete inside a suitable mold and pounding it.
Cela étant fait, on dispose au dessus de la couche (3) ainsi réalisée, l'armature (treillis) destinée à venir renforcer la couche porteuse (2). Ce treillis est positionné dans le moule de manière à ce que, après coulée du béton conventionnel au dessus de la couche absorbante (3), il se trouve disposé en position médiane à l'intérieur de la dite couche porteuse (2). Ces opérations de moulage sont réalisées de manière conventionnelle et il y a une très bonne liaison entre les deux couches ainsi réalisées.This being done, there is above the layer (3) thus produced, the frame (lattice) intended to reinforce the carrier layer (2). This trellis is positioned in the mold so that, after pouring the conventional concrete above the absorbent layer (3), it is placed in the middle position inside said carrier layer (2). These molding operations are carried out in a conventional manner and there is a very good bond between the two layers thus produced.
Le nombre et les dimensions des cannelures (4) seront fonction de l'isolation que l'on souhaite obtenir. A titre indicatif, des cannelures espacées d'un pas (P2) d'une valeur de 150 millimètres, ayant une profondeur (P1) de 170 millimètres avec un palier intermédiaire (5) en position médiane, conviennent parfaitement. The number and dimensions of the grooves (4) will depend on the insulation that one wishes to obtain. As an indication, grooves spaced apart by a pitch (P2) with a value of 150 millimeters, having a depth (P1) of 170 millimeters with an intermediate bearing (5) in the middle position, are perfectly suitable.
Pour faciliter la mise en place d'une pluralité de panneaux ainsi réalisés les uns à côté des autres, la couche porteuse (2) est réalisée de manière à ce qu'elle présente deux bords latéraux (6,7) débordants par rapport aux bords extrêmes (8,9) de la couche absorbante (3). Une telle manière de procéder permet de fixer les extrémités (6,7) dans des montants appropriés, tels que par exemple des cornières sans détériorer la couche absorbante (3). To facilitate the installation of a plurality of panels thus produced one next to the other, the carrier layer (2) is produced so that it has two lateral edges (6,7) projecting relative to the edges ends (8,9) of the absorbent layer (3). Such a procedure makes it possible to fix the ends (6,7) in appropriate amounts, such as for example angles without damaging the absorbent layer (3).
De plus, lorsque l'on souhaite réaliser des murs de grande hauteur, on peut également obtenir lors du moulage des réserves (10), telles que représentées aux figures 3 et 4, et qui permettent de superposer les panneaux les uns au dessus des autres et de les relier entre eux au moyen de goujons conventionnels. Des réserves (11) peuvent être également prévues sur les faces arrières de la couche porteuse (2) pour faciliter le démoulage et éventuellement servir de point d'ancrage contre une surface porteuse additionnelle.In addition, when it is desired to produce very high walls, it is also possible to obtain, during molding, reserves (10), as shown in FIGS. 3 and 4, which allow the panels to be superimposed one above the other. and connect them together using conventional studs. Reserves (11) can also be provided on the rear faces of the carrier layer (2) to facilitate demolding and possibly serve as an anchor against an additional carrier surface.
Les panneaux conformes à l'invention peuvent non seulement être fabriqués de manière industrielle, en série, sont faciles à mettre en place et à assembler, mais présentent une efficacité accrue par rapport aux solutions proposées à ce jour. The panels according to the invention can not only be manufactured industrially, in series, are easy to set up and assemble, but have increased efficiency compared to the solutions proposed to date.
A titre indicatif, pour un panneau du type illustré aux figures 1 et 2 ayant une longueur de 4 mètres et une hauteur de 1,500 mètre, et présentant une surface absorbante (3) ayant des cannelures telles qu'illustrées à la figure 2, des essais d'acoustique d'absorption des bruits réalisés selon la norme AFNOR 531 089 ont montré que l'on obtenait un facteur global d'absorption de 0,85 en bruit route et 0,90 en bruit rose et un indice global de transmission de 50 dBA en bruit route et 57 dBA en bruit rose. As an indication, for a panel of the type illustrated in FIGS. 1 and 2 having a length of 4 meters and a height of 1,500 meters, and having an absorbent surface (3) having grooves as illustrated in FIG. 2, tests of noise absorption acoustics produced according to standard AFNOR 531 089 have shown that an overall absorption factor of 0.85 in road noise and 0.90 in pink noise and an overall transmission index of 50 is obtained dBA in road noise and 57 dBA in pink noise.
Ces résultats indiquent les très bonnes caractéristiques du produit selon l'invention. These results indicate the very good characteristics of the product according to the invention.
Comme dit précédemment, l'invention n'est pas limitée à l'exemple de réalisation décrit, mais couvre également toutes les variantes réalisées dans le même esprit, notamment en ce qui concerne la forme précise de la section des cannelures présentes sur la face absorbante, cette forme pouvant être adaptée, telle que représentée à la figure 5, notamment pour faciliter les opérations de moulage et démoulage. Par ailleurs, si les cannelures peuvent être toutes identiques dans un but d'esthétique, il peut être envisagé de faire varier la hauteur de certaines cannelures de manière à former des motifs. La face arrière de la couche porteuse (2) peut, quant à elle, être soit lisse comme illustré à la figure 2, soit présenter également des parties décoratives en relief ou en creux. As said previously, the invention is not limited to the example of embodiment described, but also covers all the variants produced in the same spirit, in particular as regards the precise shape of the section of the grooves present on the absorbent face. , this form can be adapted, as shown in Figure 5, in particular to facilitate molding and demolding operations. Furthermore, if the grooves can all be identical for aesthetic purposes, it can be envisaged to vary the height of certain grooves so as to form patterns. The rear face of the carrier layer (2) can, for its part, be either smooth as illustrated in FIG. 2, or also have decorative parts in relief or in hollow.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9001485A FR2657903B1 (en) | 1990-02-05 | 1990-02-05 | NEW TYPE OF CONCRETE PANEL FOR THE PRODUCTION OF NOISE WALLS. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9001485A FR2657903B1 (en) | 1990-02-05 | 1990-02-05 | NEW TYPE OF CONCRETE PANEL FOR THE PRODUCTION OF NOISE WALLS. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2657903A1 true FR2657903A1 (en) | 1991-08-09 |
| FR2657903B1 FR2657903B1 (en) | 1992-06-12 |
Family
ID=9393511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9001485A Expired - Fee Related FR2657903B1 (en) | 1990-02-05 | 1990-02-05 | NEW TYPE OF CONCRETE PANEL FOR THE PRODUCTION OF NOISE WALLS. |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2657903B1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0548856A1 (en) * | 1991-12-20 | 1993-06-30 | KARL BOLD GmbH & Co. | Anti noise wall with bearer construction |
| DE4243102A1 (en) * | 1991-12-20 | 1993-07-01 | Bold Karl Gmbh & Co | Noise protection and sight wall with carrier girder construction |
| EP0648897A1 (en) * | 1993-10-14 | 1995-04-19 | GPRI (Société Anonyme) | Noise reduction wall |
| FR2737514A1 (en) * | 1995-08-01 | 1997-02-07 | Demathieu & Bard | Anti-noise screen for roads and railways - comprises vertical H section posts for holding panels which comprise sound absorbing layer butt jointed to cover posts, sound reflecting layer being on one sound absorbing surface |
| FR2754288A1 (en) * | 1996-10-09 | 1998-04-10 | Socarel | Modular absorbent panel for anti-noise screen |
| AT404147B (en) * | 1996-07-30 | 1998-08-25 | Porr Allg Bauges | SOUND PROTECTIVE WALL FOR INSULATING SOUND EMISSIONS FROM TRANSPORT |
| FR2833278A1 (en) * | 2001-12-12 | 2003-06-13 | Socarel | Modular sound absorbing panel of concrete and wood particles has cavities on opposite side to source of noise forming Helmholtz resonators |
| WO2006030041A1 (en) * | 2004-08-04 | 2006-03-23 | Daniel Conca Camus | Floor- and wall-covering element |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2410413A (en) * | 1943-02-10 | 1946-11-05 | Albert B Hurley | Acoustic tile |
| FR1408870A (en) * | 1964-07-08 | 1965-08-20 | S E T E P Soc D Etudes | Sound absorbing composite material |
| FR2348327A1 (en) * | 1976-04-16 | 1977-11-10 | Bertin & Cie | Sound absorbent corner piece for room - has plates of sound-proof material threaded onto rod, fixed to wall |
| DE2829273A1 (en) * | 1978-07-04 | 1980-01-24 | Basalt Ag | Porous concrete noise screen wall element - has surface cavities with variously stepped and sloping sections inside |
| AT363507B (en) * | 1976-01-14 | 1981-08-10 | Kranebitter Ges M B H Betonwer | AREA SOUND PROTECTIVE ELEMENT |
| US4325457A (en) * | 1979-07-19 | 1982-04-20 | Durisol Materials Limited | Acoustical barrier |
| DE8316339U1 (en) * | 1983-06-03 | 1983-11-17 | Lemmen, Bernward, 5000 Köln | Noise barrier |
| BE899081A (en) * | 1984-03-06 | 1984-07-02 | Betonac Beton | Concrete sound barrier panel with light porous concrete layer - contg. vertical tubular cavities connecting to side facing sound waves via slots |
| DE3421329A1 (en) * | 1984-06-08 | 1985-12-12 | Holzwerke H. Wilhelmi Gmbh & Co Kg, 6335 Lahnau | Sound-absorbing building panel for ceilings and walls |
| CH660609A5 (en) * | 1983-08-17 | 1987-05-15 | Hunziker & Cie Ag | Noise prevention element |
| FR2612225A1 (en) * | 1987-03-11 | 1988-09-16 | Gilson Pierre | Acoustic lining element, particularly for noise-reducing walls |
| EP0282679A1 (en) * | 1987-03-20 | 1988-09-21 | Rolf Scheiwiller | Set of elements for composite constructions |
-
1990
- 1990-02-05 FR FR9001485A patent/FR2657903B1/en not_active Expired - Fee Related
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2410413A (en) * | 1943-02-10 | 1946-11-05 | Albert B Hurley | Acoustic tile |
| FR1408870A (en) * | 1964-07-08 | 1965-08-20 | S E T E P Soc D Etudes | Sound absorbing composite material |
| AT363507B (en) * | 1976-01-14 | 1981-08-10 | Kranebitter Ges M B H Betonwer | AREA SOUND PROTECTIVE ELEMENT |
| FR2348327A1 (en) * | 1976-04-16 | 1977-11-10 | Bertin & Cie | Sound absorbent corner piece for room - has plates of sound-proof material threaded onto rod, fixed to wall |
| DE2829273A1 (en) * | 1978-07-04 | 1980-01-24 | Basalt Ag | Porous concrete noise screen wall element - has surface cavities with variously stepped and sloping sections inside |
| US4325457A (en) * | 1979-07-19 | 1982-04-20 | Durisol Materials Limited | Acoustical barrier |
| DE8316339U1 (en) * | 1983-06-03 | 1983-11-17 | Lemmen, Bernward, 5000 Köln | Noise barrier |
| CH660609A5 (en) * | 1983-08-17 | 1987-05-15 | Hunziker & Cie Ag | Noise prevention element |
| BE899081A (en) * | 1984-03-06 | 1984-07-02 | Betonac Beton | Concrete sound barrier panel with light porous concrete layer - contg. vertical tubular cavities connecting to side facing sound waves via slots |
| DE3421329A1 (en) * | 1984-06-08 | 1985-12-12 | Holzwerke H. Wilhelmi Gmbh & Co Kg, 6335 Lahnau | Sound-absorbing building panel for ceilings and walls |
| FR2612225A1 (en) * | 1987-03-11 | 1988-09-16 | Gilson Pierre | Acoustic lining element, particularly for noise-reducing walls |
| EP0282679A1 (en) * | 1987-03-20 | 1988-09-21 | Rolf Scheiwiller | Set of elements for composite constructions |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0548856A1 (en) * | 1991-12-20 | 1993-06-30 | KARL BOLD GmbH & Co. | Anti noise wall with bearer construction |
| DE4243102A1 (en) * | 1991-12-20 | 1993-07-01 | Bold Karl Gmbh & Co | Noise protection and sight wall with carrier girder construction |
| EP0648897A1 (en) * | 1993-10-14 | 1995-04-19 | GPRI (Société Anonyme) | Noise reduction wall |
| FR2711155A1 (en) * | 1993-10-14 | 1995-04-21 | Gpri | Noise barrier |
| FR2737514A1 (en) * | 1995-08-01 | 1997-02-07 | Demathieu & Bard | Anti-noise screen for roads and railways - comprises vertical H section posts for holding panels which comprise sound absorbing layer butt jointed to cover posts, sound reflecting layer being on one sound absorbing surface |
| AT404147B (en) * | 1996-07-30 | 1998-08-25 | Porr Allg Bauges | SOUND PROTECTIVE WALL FOR INSULATING SOUND EMISSIONS FROM TRANSPORT |
| FR2754288A1 (en) * | 1996-10-09 | 1998-04-10 | Socarel | Modular absorbent panel for anti-noise screen |
| FR2833278A1 (en) * | 2001-12-12 | 2003-06-13 | Socarel | Modular sound absorbing panel of concrete and wood particles has cavities on opposite side to source of noise forming Helmholtz resonators |
| WO2006030041A1 (en) * | 2004-08-04 | 2006-03-23 | Daniel Conca Camus | Floor- and wall-covering element |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2657903B1 (en) | 1992-06-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |