PT91087B - ABSORBENT ACOUSTIC PANEL - Google Patents
ABSORBENT ACOUSTIC PANEL Download PDFInfo
- Publication number
- PT91087B PT91087B PT91087A PT9108789A PT91087B PT 91087 B PT91087 B PT 91087B PT 91087 A PT91087 A PT 91087A PT 9108789 A PT9108789 A PT 9108789A PT 91087 B PT91087 B PT 91087B
- Authority
- PT
- Portugal
- Prior art keywords
- acoustic panel
- mineral
- aggregates
- absorbent
- layer
- Prior art date
Links
- 230000002745 absorbent Effects 0.000 title claims description 10
- 239000002250 absorbent Substances 0.000 title claims description 10
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 12
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 10
- 239000011707 mineral Substances 0.000 claims abstract description 10
- 239000002131 composite material Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000006096 absorbing agent Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims 3
- 239000000835 fiber Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 239000011347 resin Substances 0.000 abstract description 8
- 229920005989 resin Polymers 0.000 abstract description 8
- 239000011248 coating agent Substances 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 7
- 239000003365 glass fiber Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 208000034450 Multilocular cystic renal neoplasm of low malignant potential Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000001033 granulometry Methods 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 201000010274 multilocular clear cell renal cell carcinoma Diseases 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Laminated Bodies (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
Description
presente invento refere-se a um painel acústico absorvente. Mais particularmente, refere-se a um painel com pósito de camada dupla para a absorção dos sons.the present invention relates to an absorbent acoustic panel. More particularly, it refers to a double-layered panel for sound absorption.
A protecção anti-ruído surgiu como uma necessidade para isolar as habitações contra o ruído cada vez maior pro veniente dos eixos rodoviários ou ferroviários nos quais o tráfego tem aumentado consideravelmente nos últimos anos.Noise protection has emerged as a need to insulate homes against the ever-increasing noise from road or rail axles on which traffic has increased considerably in recent years.
Podem ser realizados diferentes tipos de protecção acústica, nomeadamente quando é necessário agir sobre a fon te sonora, pela construção de painéis, de semi-cobertura ou de cobertura do eixo na oriqem das perturbações nocivas. Contudo, as soluções de semi-cobertura e mais ainda a de co bertura completa sffo fora do comum devido ao seu custo muito elevado, Cs painéis acústicos do tipo conhecido são geralmente constituídos por pré-fabriçados em betão, com para, mento arquitectónico, ou em alvernaria solidários a uma estru tura em betão. Trata-se portanto de uma construção pesada cada vez mais dificil de realizar uma vez que os trabalhos visam equipar um eixo existente, no qua1 é necessário evitar as restrições à circulação, pela presença de engenhos de cons trução, ou mesmo por um estreitamento da via.Different types of acoustic protection can be performed, namely when it is necessary to act on the sound source, through the construction of panels, semi-cover or shaft cover in the origin of the harmful disturbances. However, semi-roofing solutions and even more so that full coverage is out of the ordinary due to its very high cost, acoustic panels of the known type are generally made of precast concrete, with architectural finish, or in masonry attached to a concrete structure. It is, therefore, a heavy construction that is increasingly difficult to carry out since the works aim to equip an existing axis, in which it is necessary to avoid the restrictions on circulation, by the presence of construction devices, or even by narrowing the road. .
Cutros painéis acústicos habitualmente utilizados apre sentam-se com a forma de paine.is metálicos perfurados com incorporação de lã de vidro, ou paramentos em terracota, em argila expandida ou aglomerados de madeira. Apresentam contudo os inconvenientes de uma estéctica discotível, de má adaptação à reabilitação, quer dizer, no tratamento de obras existentes, e de uma sensibilidade a corrosão. Além disso, muitos destes painéis reflectem os sons, quer para os veículos, o que origina uma condução mais fatigante, quer para os andares superiores dos imóveis próximos, que normalmente, deveriam estar menos expostos ao barulho, devido ao seu afastamento.Other acoustic panels commonly used are in the form of metal panels perforated with the incorporation of glass wool, or terracotta walls, expanded clay or wood agglomerates. However, they present the drawbacks of a discotible aesthetic, of poor adaptation to rehabilitation, that is, in the treatment of existing works, and of a sensitivity to corrosion. In addition, many of these panels reflect sounds, both for vehicles, which leads to more stressful driving, and for the upper floors of nearby buildings, which should normally be less exposed to noise, due to their distance.
575 1/88013575 1/88013
-30 presente invento remedeia estes inconvenientes. Tem como objectivo um painel acústico absorvente do tipo constituído por um painel compósito apresentando uma camada de absorvente mineral e uma camada de produto mineral permeável aos sons, sendo esta última uma argamassa de resina que é aplicada como revestimento, apresentando uma proporção de e£ paços vazios compreendida entre 30 e 50%.The present invention remedies these drawbacks. Its objective is an absorbent acoustic panel of the type consisting of a composite panel with a layer of mineral absorber and a layer of mineral product permeable to sounds, the latter being a resin mortar that is applied as a coating, presenting a proportion of e £ paços voids between 30 and 50%.
painel de acordo com o invento é leve, sólido e resistente às intempéries, apresentando no entanto, uma boa absorção acústica e oferecendo possibilidades de composiçSes estáticas variáveis.The panel according to the invention is light, solid and resistant to the weather, however presenting good sound absorption and offering possibilities for variable static compositions.
Outras características e vantagens aparecerão no decor rer da descrição que se segue, dada unicamente a título de exemplo não limitativo e com referencia à figura anexa que re presenta um corte transversal do painel de acordo com o inven to.Other characteristics and advantages will appear in the course of the description that follows, given solely as a non-limiting example and with reference to the attached figure that represents a cross section of the panel according to the invention.
De acordo com o invento, o painel compósito á constituído por um material absorvente 1 e por um revestimento está tico em argamassa de resina 2. Mais particularmente, o material absorvente apresenta-se sob a forma de uma folha plana constituída por fibras de vidro 3, comprimidas e ligadas por uma resina 4. De preferência, este material corresponde ao co mercializado pela Sociedade ISOVRR SAINT-GOBAIN, com a marca registada 'STRATIGLASS.According to the invention, the composite panel consists of an absorbent material 1 and a coating is typical of resin mortar 2. More particularly, the absorbent material is in the form of a flat sheet made of glass fibers 3 , compressed and bonded by a resin 4. Preferably, this material corresponds to that marketed by the ISOVRR SAINT-GOBAIN Company, under the trademark 'STRATIGLASS.
A argamassa de resina á composta por agregados 5 ligados por uma resina 6, mas de maneira a deixar subsistir entre eles uma proporção importante de espaços vazios 7. Com esta finalidade, a granulometria dos agregados á escolhida vantajo samente na gama de 4-6 mm. Cs agregados são de preferência, de natureza siliciosa tingidos tanto na massa como à superfície. A resina, escolhida, por exemplo, de natureza epoxídica, á incolor. A proporção de espaços vazios na argamassa dita oca está compreendida entre 30% e 50%, por exemplo 40%. Esta argamassa 6 vantajosamente comercializada sob a marca CURO MCRCC” e foi o objecto do pedido de patente FR 87-14 618 daThe resin mortar is made up of aggregates 5 connected by a resin 6, but in order to allow an important proportion of empty spaces to remain between them 7. For this purpose, the granulometry of the aggregates is advantageously chosen in the range of 4-6 mm . The aggregates are preferably siliceous in nature, dyed both in the mass and on the surface. The resin, chosen, for example, of epoxy nature, is colorless. The proportion of empty spaces in the so-called hollow mortar is between 30% and 50%, for example 40%. This mortar 6 is advantageously marketed under the brand CURO MCRCC ”and was the subject of patent application FR 87-14 618 of
575 1/88C13575 1 / 88C13
-4sociedade PIC CCNSEIL. A resina que liga os agregados serve igualmente para torná-los solidários ao suporte em fibras de vidro.-4PIC CCNSEIL society. The resin that connects the aggregates also serves to make them solidary to the glass fiber support.
De acordo com um exemplo de realização particular, um painel de acordo com o invento apresenta uma espessura de 2C mm dos quais 12 mm para a camada de fibras de vidro comprimi das, e 8 mm para a argamassa oca com 40% de espaço vazio, ex primindo-se esta percentagem pela relação dos insterstícios da argamassa e a superfície total do revestimento. Nestas con 2 diçSes, o peso de um painel de 1 m ' é de 17 Kg, o que é parti, cularmente leve.According to an example of a particular embodiment, a panel according to the invention has a thickness of 2C mm, of which 12 mm for the layer of compressed glass fibers, and 8 mm for the hollow mortar with 40% empty space, excluding this percentage by the ratio of the mortar stainings and the total surface of the coating. In these two dimensions, the weight of a 1 m 'panel is 17 kg, which is particularly light.
O painel de acordo com o invento é montado na parte l£ teral dos eixos viários com circulação intensa, verticalmente ou ligeiramente inclinado de acordo com o modo conhecido, sen do a camada constituída pelo revestimento mineral de argamassa oca, dirigida para a fonte sonora, c painel pode ser disposto de acordo com os modos habituais de construção:The panel according to the invention is mounted on the side of the road axles with intense circulation, vertically or slightly inclined according to the known method, with the layer constituted by the hollow mortar mineral coating, directed towards the sound source, The panel can be arranged according to the usual construction methods:
- por montagem num muro existente de acordo com a técnica de fixação com caixa de ar, sendo a caixa de ar interposta entre o muro e a folha de fibras de vidro comprimidas;- by mounting on an existing wall according to the air box fixation technique, the air box being interposed between the wall and the sheet of compressed glass fibers;
- por integração a ume parede pesada formando um supor te sobre o qual se aplica directamente a folha de fi bras de vidro;- by integration with a heavy wall forming a support on which the sheet of glass fibers is applied directly;
- por associação com receptáculos s:-mi-espessos ou de_l gados, facilmente moldáveis.- by association with s: -mix-thick or small receptacles, easily moldable.
Cbtém-se assim um painel fácil de manipular, mas sólido. Além disso, o revestimento mineral constituído pela argamassa oca apresenta uma boa resistência às intempéries e à corrosão, bom como uma boa absorção acústica, pois a sua proporção de espaços vazios permite a passagem dos sons que são em seguida amortecidos pelas fibras de vidro comprimidas. Como os granulados podem ser tingidos na massa ou na superfície, é dada toda a liberdade ao projectista, para variar as tintasThis provides an easy-to-handle but solid panel. In addition, the mineral coating made up of hollow mortar has good resistance to weather and corrosion, as well as good acoustic absorption, since its proportion of empty spaces allows the passage of sounds that are then dampened by the compressed glass fibers. As the granules can be dyed in the mass or on the surface, the designer is free to vary the paints
575 1/88013575 1/88013
--•cr»- • cr »
-5e dar assim o aspecto decorativo e estético procurado. Fina lmente, o revestimento que é anti-grafito integra-se facilmente com outros materiais para formar produtos eficazes utilizáveis na reabilitação de telas existentes ou em nova implantação.-5 and thus give the desired decorative and aesthetic aspect. Finally, the anti-graphite coating easily integrates with other materials to form effective products that can be used to rehabilitate existing screens or re-deploy them.
Claims (6)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8809433A FR2633953B1 (en) | 1988-07-07 | 1988-07-07 | ABSORBENT ACOUSTIC SCREEN |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PT91087A PT91087A (en) | 1990-02-08 |
| PT91087B true PT91087B (en) | 1995-07-03 |
Family
ID=9368339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PT91087A PT91087B (en) | 1988-07-07 | 1989-07-06 | ABSORBENT ACOUSTIC PANEL |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0350420B1 (en) |
| AT (1) | ATE100162T1 (en) |
| DE (1) | DE68912219D1 (en) |
| FR (1) | FR2633953B1 (en) |
| PT (1) | PT91087B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2729682A1 (en) * | 1995-01-20 | 1996-07-26 | Spie Citra | Acoustic sound absorbing screens for motorways |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7513194U (en) * | 1975-09-04 | Beton Und Monierbau Ag | Pre-fabricated part for a protective wall against noise immissions | |
| AT363507B (en) * | 1976-01-14 | 1981-08-10 | Kranebitter Ges M B H Betonwer | AREA SOUND PROTECTIVE ELEMENT |
| DE2951027C2 (en) * | 1979-12-19 | 1982-02-18 | Albert 4270 Dorsten Stewing | Wall element for a noise barrier |
| DE8231009U1 (en) * | 1982-11-05 | 1983-02-17 | Schulz, Herbert, 4000 Düsseldorf | NOISE PROTECTION WALL |
| DE8316339U1 (en) * | 1983-06-03 | 1983-11-17 | Lemmen, Bernward, 5000 Köln | Noise barrier |
| DE3338303A1 (en) * | 1983-10-21 | 1985-05-02 | Ed. Züblin AG, 7000 Stuttgart | Sound-absorbing structural member for soundproofing walls on bridges |
-
1988
- 1988-07-07 FR FR8809433A patent/FR2633953B1/en not_active Expired - Lifetime
-
1989
- 1989-06-30 DE DE89470013T patent/DE68912219D1/en not_active Expired - Lifetime
- 1989-06-30 AT AT89470013T patent/ATE100162T1/en not_active IP Right Cessation
- 1989-06-30 EP EP89470013A patent/EP0350420B1/en not_active Expired - Lifetime
- 1989-07-06 PT PT91087A patent/PT91087B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0350420A1 (en) | 1990-01-10 |
| FR2633953A1 (en) | 1990-01-12 |
| FR2633953B1 (en) | 1992-01-17 |
| EP0350420B1 (en) | 1994-01-12 |
| DE68912219D1 (en) | 1994-02-24 |
| PT91087A (en) | 1990-02-08 |
| ATE100162T1 (en) | 1994-01-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM3A | Annulment or lapse |
Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 19970731 |