EP1736603B1 - Mur antibruit - Google Patents

Mur antibruit Download PDF

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Publication number
EP1736603B1
EP1736603B1 EP05113105A EP05113105A EP1736603B1 EP 1736603 B1 EP1736603 B1 EP 1736603B1 EP 05113105 A EP05113105 A EP 05113105A EP 05113105 A EP05113105 A EP 05113105A EP 1736603 B1 EP1736603 B1 EP 1736603B1
Authority
EP
European Patent Office
Prior art keywords
sound absorption
expanded clay
particle size
absorption layer
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP05113105A
Other languages
German (de)
English (en)
Other versions
EP1736603A3 (fr
EP1736603A2 (fr
Inventor
Wulf Thielhorn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liadur sro
Original Assignee
Liadur sro
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 Liadur sro filed Critical Liadur sro
Priority to PL05113105T priority Critical patent/PL1736603T3/pl
Priority to KR1020060129569A priority patent/KR20070072370A/ko
Priority to CNA2006101678864A priority patent/CN101012637A/zh
Priority to DE200610061199 priority patent/DE102006061199A1/de
Publication of EP1736603A2 publication Critical patent/EP1736603A2/fr
Publication of EP1736603A3 publication Critical patent/EP1736603A3/fr
Application granted granted Critical
Publication of EP1736603B1 publication Critical patent/EP1736603B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • E01F8/0076—Cellular, e.g. as wall facing

Definitions

  • the invention relates to a noise barrier with a load-bearing wall part of supporting concrete and a facing shell of fired expanded clay bodies and Bendeffen as sound absorption layer.
  • Noise barriers are known in which the sound absorption layer consists of cement-bound wood chips.
  • a noise protection plate in which the absorption layer consists of cement-bonded expanded clay bodies, but the expanded clay bodies are still broken after firing, thus have no regular structure and in particular no spherical shape.
  • the shape of the remaining absorption channels can not be determined, even if - if necessary, by additional measures - a minimum pore content in the absorption layer is specified.
  • the required minimum amount of binder can not be calculated concretely due to the irregular structure and juxtaposition of the pieces of expanded clay.
  • CH 671 054 discloses a noise barrier according to the preamble of claim 1.
  • the object of the invention is to avoid these known disadvantages and to disclose a noise barrier in which the long-term strength of the sound absorption layer remains practically indefinitely constant.
  • the sound channels of the sound absorption layer should be able to be adapted very accurately to the sound to be absorbed.
  • the noise barrier consists of a load-bearing wall slab made of supporting concrete and a facing shell as a sound absorption layer.
  • the sound absorption layer is provided with a profiling.
  • the profiling consists of ribs and intermediate valley areas.
  • the essential components of the sound absorption layer are fired expanded clay bodies and a binder.
  • the majority of the expanded clay body has a uniform grain size.
  • the expanded clay bodies are spherical.
  • the binder may be cementitious or made of a synthetic resin or the like.
  • the binder is disposed as a layer on the surface of the expanded clay bodies, so that sound absorption channels are present between the expanded clay bodies.
  • the sound absorption layer is also multi-layered, and consists of an inner and an outer sound absorption layer.
  • each sound absorption layer has a relatively uniform, but different sized grain size.
  • the rib tips or other protruding corners or edges of the ribs of the sound absorption layer are made of a mixture with a smaller grain size. Since more binders must be used when using smaller expanded clay bodies, the rib tips of the sound absorption layer also have a higher strength.
  • the binder and in particular the amount of the binder, is adapted to the expanded clay body or to the grain of the expanded clay body.
  • the binder should be arranged only as a layer on the surface of the expanded clay body, the total amount of the binder depends on the grain size of the expanded clay body. The smaller the grain size, the larger the total surface area of all spherical expanded clay bodies per unit volume. Since the binder is the most expensive component of the sound absorption layer, the manufacturing costs are higher when using a small grain size of the expanded clay body than with a larger grain size. It is therefore useful for cost reasons, adjust the amount of binder to the grain size of the expanded clay body.
  • Compliance with the selected grain size of expanded clay body can be done via a screening of the expanded clay after sintering of the granules.
  • the amount of the binder and the size of the sound absorption channels can be maintained relatively accurately when the expanded clay bodies are spherical, because no body parts of the expanded clay bodies can push into the sound absorption channels when compacting the sound absorption layer.
  • a further advantage is that rib tips or protruding corners or edges of the ribs can be made with increased strength, and that the manufacturing costs decrease because only the binder absolutely necessary for the strength of the rib tips of the sound absorption layer must be used, and that the Sound absorption channels should not be closed or reduced by excess binder.
  • FIGS. 1 and 3 are not part of the invention.
  • the noise barrier - like the Fig. 1, 3 and 4 show - consists of a load-bearing wall plate 1 of supporting concrete and a ceramic facing shell as sound absorption layer 2.
  • the surface 3 of the sound absorption layer 2 is provided with a profiling 4.
  • the profiling 4 consists of ribs 5 and intermediate valley regions 6.
  • the essential components of the sound absorption layer 2 are fired expanded clay bodies 7 and a binder 8.
  • the majority of the expanded clay body 7 has a uniform grain, as the enlarged sectional view of Fig. 2 shows.
  • the expanded clay bodies 7 are spherical.
  • the binder 8 is arranged as a layer 9 on the surface 10 of the expanded clay body 7, so that between the expanded clay bodies 7 sound absorption channels 11 are present.
  • the sound absorption layer 2 is formed according to the invention multi-layered, such as 3 and 4 demonstrate:
  • each sound absorbing layer 12 and 13 has a relatively uniform but different sized grain size.
  • the outer sound absorption layer 12 in FIG Fig. 3 is made of a mixture having a smaller grain size than the inner sound absorption layer 13.
  • rib tips 14 or other protruding corners or edges of the ribs consist of a mixture with a smaller grain size.
  • the binder 8 should be arranged only as a layer 9 on the surface 10 of the expanded clay body 7, the total amount of the binder 8 depends on the grain size of the expanded clay body 7. The smaller the grain size, the larger the total surface area of all spherical expanded clay bodies 7 per unit volume.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)

Claims (5)

  1. Mur antibruit comprenant
    - une plaque murale porteuse (1) en béton porteur et
    - un doublage en tant que couche d'absorption acoustique (2), la couche d'absorption acoustique (2) se composant de corps d'argile expansée calcinée (7) et d'un liant (8),
    - le liant (8) étant disposé en couche (9) sur la surface (10) des corps d'argile expansée (7) de sorte qu'entre les corps d'argile expansée (7), il est formé des canaux d'absorption acoustique (11) et il n'est appliqué uniquement la quantité de liant (8) suffisante pour la résistance de la couche d'absorption acoustique (2), de sorte que les canaux d'absorption acoustique (11) ne sont pas fermés ou réduits entre les corps d'argile expansée (7) par un excédent de liant (8),
    - la couche d'absorption acoustique (2) comportant plusieurs couches, à savoir la couche d'absorption acoustique (2) se compose d'une couche interne (13) et d'une couche externe (12), et présentant un profilé de nervures (5) et de creux (6) entre ces dernières,
    - les couches intérieures et extérieures d'absorption acoustique (12, 13) possèdent une granulométrie respectivement uniforme mais de de taille différente,
    caractérisé en ce que
    - les corps d'argile expansée (7) ont la forme de billes et
    - la partie majoritaire des corps d'argile expansée (7) possède une granulométrie uniforme de sorte que la partie des corps d'argile expansée (7) de plus grande taille est de maximum 20 % dans le doublage, et
    - seulement les sommets de nervures (14) ou les angles ou bords protubérants des nervures de la couche d'absorption acoustique (2) se composent d'un mélange de granulométrie inférieure,
  2. Mur antibruit selon l'une des revendications précédentes,
    caractérisé en ce qu'
    il n'est appliqué uniquement la quantité de liant (8) suffisante pour la résistance de la couche d'absorption acoustique (2), de sorte que les canaux d'absorption acoustique (11) ne sont pas fermés ou réduits entre les corps d'argile expansée (7) par un excédent de liant (8).
  3. Procédé pour la fabrication de murs antibruit selon l'une des revendications précédentes, caractérisé en ce que
    - la granulométrie des corps d'argile expansée (7) et la quantité du liant (8) sont adaptées l'une à l'autre dans le fait qu'il n'est appliqué uniquement la quantité de liant (8) suffisante pour la résistance de la couche d'absorption acoustique (2), de sorte que les canaux d'absorption acoustique (11) ne sont pas fermés ou réduits entre les corps d'argile expansée (7) par un excédent de liant (8), et
    - la partie majoritaire des corps d'argile expansée (7) possède une granulométrie uniforme de sorte que la partie des corps d'argile expansée (7) de plus grande taille est de maximum 20 % dans le doublage et
    - la granulométrie des corps d'argile expansée (7) en forme de bille est adaptée au son à absorber, dans le fait qu'en particulier les corps d'argile expansée (7) sont sélectionnés d'une taille correspondant à l'ampleur du bruit à absorber,
    - la couche d'absorption acoustique (2) est réalisée de plusieurs couches, à savoir la couche d'absorption acoustique (2) se compose d'une couche interne (13) et d'une couche externe (12), et présente un profilé de nervures (5) et de creux (6) entre ces dernières,
    - les couches intérieures et extérieures d'absorption acoustique (12, 13) possèdent une granulométrie respectivement uniforme mais de taille différente, et
    - seulement les sommets de nervures (14) ou les angles ou bords protubérants des nervures de la couche d'absorption acoustique (2) se composent d'un mélange de granulométrie inférieure.
  4. Procédé pour la fabrication de mur antibruit selon l'une des revendications précédentes, caractérisé en ce que
    - le respect de la granulométrie sélectionnée des corps d'argile expansée (7) s'effectue par un tamisage de l'argile expansée après le frittage du granulé, et/ou
    - le respect de la granulométrie sélectionnée des corps d'argile expansée (7) est déjà assuré au moment de la granulation de l'argile expansée avant le frittage.
  5. Procédé pour la fabrication de murs antibruit selon l'une des revendications précédentes,
    caractérisé en ce que
    les couches intérieures et extérieures d'absorption acoustique (12, et 13) sont fabriquées d'un mélange d'une granulométrie relativement uniforme à l'intérieur de chaque couche, cependant de grandeur différente dans les différentes couches.
EP05113105A 2005-06-24 2005-12-30 Mur antibruit Expired - Lifetime EP1736603B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PL05113105T PL1736603T3 (pl) 2005-06-24 2005-12-30 Bariera akustyczna
KR1020060129569A KR20070072370A (ko) 2005-12-30 2006-12-18 방음벽
CNA2006101678864A CN101012637A (zh) 2005-12-30 2006-12-20 噪音防护墙
DE200610061199 DE102006061199A1 (de) 2005-06-24 2006-12-22 Feinporige Lärmschutzwand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005029356A DE102005029356A1 (de) 2005-06-24 2005-06-24 Lärmschutzwand

Publications (3)

Publication Number Publication Date
EP1736603A2 EP1736603A2 (fr) 2006-12-27
EP1736603A3 EP1736603A3 (fr) 2007-12-12
EP1736603B1 true EP1736603B1 (fr) 2012-12-26

Family

ID=37027679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05113105A Expired - Lifetime EP1736603B1 (fr) 2005-06-24 2005-12-30 Mur antibruit

Country Status (3)

Country Link
EP (1) EP1736603B1 (fr)
DE (1) DE102005029356A1 (fr)
PL (1) PL1736603T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2055837A1 (fr) * 2007-11-05 2009-05-06 Ines Jackson Colomer Module d'insonorisation
CN103866702A (zh) * 2012-12-10 2014-06-18 凌敏 一种异型吸噪模块及隔音墙

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1387042A (fr) * 1963-08-20 1965-01-29 Us Acoustics Corp Carreau ou panneau acoustique, procédé et équipement pour sa fabrication
JPS49108808A (fr) * 1973-02-17 1974-10-16
AT374218B (de) 1979-12-19 1984-03-26 Stewing Albert Wandelement fuer eine laermschutzwand
CH671054A5 (en) * 1987-08-31 1989-07-31 Bernward Lemmen Noise absorbing wall element - with carrier plane for two specified cellular concrete layers and specified surface structure
DE4200159C1 (en) * 1992-01-07 1993-03-18 Ralf 2872 Hude De Mehrings Prodn. of plate section for sound-proofing wall - by forming steel-concrete carrier plate with profiled sound-absorbing front plate contg. elastic granules and binding agent shaped with stamp
WO1994024381A1 (fr) * 1993-04-14 1994-10-27 Pic Conseil S.A.R.L. Materiau absorbant acoustique

Also Published As

Publication number Publication date
DE102005029356A1 (de) 2007-01-04
EP1736603A3 (fr) 2007-12-12
PL1736603T3 (pl) 2013-05-31
EP1736603A2 (fr) 2006-12-27

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