BE384935A - - Google Patents
Info
- Publication number
- BE384935A BE384935A BE384935DA BE384935A BE 384935 A BE384935 A BE 384935A BE 384935D A BE384935D A BE 384935DA BE 384935 A BE384935 A BE 384935A
- Authority
- BE
- Belgium
- Prior art keywords
- emi
- plates
- edges
- coating
- wood
- Prior art date
Links
- 238000000576 coating method Methods 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 9
- 239000002657 fibrous material Substances 0.000 claims description 6
- 239000002023 wood Substances 0.000 claims description 6
- 210000002268 wool Anatomy 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 229920002522 Wood fibre Polymers 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 239000002025 wood fiber Substances 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000002745 absorbent Effects 0.000 claims description 2
- 239000002250 absorbent Substances 0.000 claims description 2
- 239000004568 cement Substances 0.000 claims description 2
- 239000003086 colorant Substances 0.000 claims 2
- 238000000465 moulding Methods 0.000 claims 2
- 229910000906 Bronze Inorganic materials 0.000 claims 1
- 239000010974 bronze Substances 0.000 claims 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims 1
- 230000008021 deposition Effects 0.000 claims 1
- 239000000428 dust Substances 0.000 claims 1
- 239000003973 paint Substances 0.000 claims 1
- 239000011505 plaster Substances 0.000 claims 1
- 239000011148 porous material Substances 0.000 description 2
- 240000000111 Saccharum officinarum Species 0.000 description 1
- 235000007201 Saccharum officinarum Nutrition 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000011464 hollow brick Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/16—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of fibres, chips, vegetable stems, or the like
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B1/86—Sound-absorbing elements slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Electromagnetism (AREA)
- Building Environments (AREA)
- Finishing Walls (AREA)
Description
"Perfectionnements apportés aux revêtements de cloisons
absorbant les sons".
On a déjà utilisé, comme revêtement absorbant
les sons, des matières fibreuses, telles que la laine
d'asbeste, la laine de bois ou matières analogues, et
cela comme garniture pour des briques creuses avec paroi
extérieure perforée ou en les introduisant dans un inter-
valle laissé entre la cloison et des plaques d'appui
perforées rendues solidaires de ladite cloison. Dans
les deux cas, il est nécessaire de prévoir des moyens
auxiliaires pour maintenir les matières fibreuses en
place.
Conformément à la présente invention on évite
<EMI ID=1.1>
des matières fibreuses cimentées ou mastiquées et qui
ne reçoivent aucun enduit. De la laine de bois cimentée l'aide de ciment Sorel a donné des résultats particulièrement avantageux.
On peut fabriquer sur place le revêtement en se servant d'un coffrage approprié ou on peut également le constituer à l'aide de plaques, fabriquées à l'usine,
<EMI ID=2.1>
former une surface continue. Le revêtement, obtenu selon l'invention, peut être établi d'une manière bien plus économique que les revêtements connus; il peut être plus aisément mis en place et est, en outre, plus efficace du fait que les moyens de soutien, qui influencent l'absorption du son, n'existent pas.
De plus, les matières fibreuses cimentées con-
<EMI ID=3.1>
larges pores alors que de telles matières, quand elles ne sont pas reliées entre elles, tassent après un certain temps..
L'effet fortement amortisseur du son, obtenu à l'aide d'un revêtement non enduit et constitué par de la laine de bois cimentée, résulte du fait que le matière comporte de larges pores dans lesquels peuvent pénétrer les ondes sonores. Les quelques ondes sonores, qui viennent frapper les fibres extérieures, ne sont pas réfléchies dans la direction d'incidence, mais sont dirigées vers toutes les directions possibles du fait que des fibres de bois ne sont généralement pas parallèles à; la surface des plaques, A l'intérieur des plaques, les ondes sonores viennent frapper les fibres entremélées et qui sont inclinées suivant différents angles. Elles
<EMI ID=4.1>
tions et viennent toucher d'autres fibres de bois qui
les renvoient vers d'autres directions.à l'intérieur de la plaque. Comme chaque réflexion réduit l'energie des ondes, ces réflexions répétées conduisent à la suppres� sion complète du son.
Pour l'absorption de l'écho, il est essentiel
qu'une partie aussi faible que possible de la surface-
soit unie: Dans ce sens le revêtement selon l'inven-
tion est notablement supérieur à celui obtenu à l'aide
de matières fibreuses qui ne sont pas cimentées du fait
que les parois qui doivent soutenir ces dernières ont
un. effet aplanisseur.
Il est en outre nécessaire que la structure de
la surface soit irrégulière et à larges pores, c'est-à- ' dire macroscopique. Les dimensions des saillies et des creux doivent se trouver dans la zone des ondes sonores.
<EMI ID=5.1>
<EMI ID=6.1>
<EMI ID=7.1>
uni ou lisse pour des ondes lumineuses malgré que de telles surfaces polies montrent, à l'examen microscopique,' une forte rugosité ou inégalité. Pour cette raison les
<EMI ID=8.1>
nues � l'aide des fibres fortement tassées de la canne à sucre, n'ont aucun effet absorbant pour les sons. Ce n'est
<EMI ID=9.1>
fisamment grands, qu'on crée une inégalité de surface
"Improvements to partition coverings
absorbing sound ".
We have already used, as an absorbent coating
sounds, fibrous materials, such as wool
asbestos, wood wool or the like, and
this as a filling for hollow bricks with wall
perforated exterior or by inserting them into an inter-
valle left between the partition and the support plates
perforated made integral with said partition. In
both cases, it is necessary to provide means
auxiliaries for keeping the fibrous materials in
square.
In accordance with the present invention,
<EMI ID = 1.1>
cemented or masticated fibrous materials which
do not receive any coating. Wood wool cemented with Sorel cement has given particularly beneficial results.
The cladding can be fabricated on site using a suitable formwork or it can also be made using sheets, manufactured at the factory,
<EMI ID = 2.1>
form a continuous surface. The coating obtained according to the invention can be established in a much more economical manner than the known coatings; it can be more easily put in place and is, moreover, more efficient because the support means, which influence sound absorption, do not exist.
In addition, the cemented fibrous materials con-
<EMI ID = 3.1>
large pores whereas such materials, when they are not connected together, settle after a certain time.
The strong sound damping effect, obtained by means of an uncoated coating consisting of cemented wood wool, results from the fact that the material has large pores in which sound waves can penetrate. The few sound waves, which strike the outer fibers, are not reflected in the direction of incidence, but are directed in all possible directions because wood fibers are generally not parallel to; the surface of the plates, Inside the plates, the sound waves strike the intermingled fibers which are inclined at different angles. They
<EMI ID = 4.1>
and touch other wood fibers which
send them back to other directions. inside the plate. As each reflection reduces the energy of the waves, these repeated reflections lead to the suppres � complete zion of sound.
For echo absorption it is essential
that as small a part of the surface as possible
is plain: In this sense the coating according to the invention
tion is significantly higher than that obtained using
of fibrous material which is not cemented due to
that the walls which must support the latter have
a. flattening effect.
It is further necessary that the structure of
the surface is irregular and large-pored, ie macroscopic. The dimensions of the protrusions and depressions must lie in the area of the sound waves.
<EMI ID = 5.1>
<EMI ID = 6.1>
<EMI ID = 7.1>
plain or smooth for light waves despite such polished surfaces showing, on microscopic examination, 'a strong roughness or unevenness. For this reason the
<EMI ID = 8.1>
naked � using the tightly packed fibers of sugar cane, have no sound absorbing effect. It's not
<EMI ID = 9.1>
large enough, that we create an inequality of surface
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT716969X | 1930-09-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE384935A true BE384935A (en) |
Family
ID=3679790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE384935D BE384935A (en) | 1930-09-24 |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE384935A (en) |
DE (1) | DE600996C (en) |
FR (1) | FR716969A (en) |
NL (1) | NL34827C (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE751596C (en) * | 1937-04-14 | 1953-03-02 | Oscar Gossler Glasgespinst Fab | Sound-absorbing wall or ceiling plaster |
DE816594C (en) * | 1950-03-25 | 1951-10-11 | Anton Grimm | Sound absorbing wall and ceiling coverings |
AT403713B (en) * | 1990-08-27 | 1998-05-25 | Innotech Betriebstechnikgesell | INSULATION BOARD FROM WOOD MATERIAL AND METHOD FOR THE PRODUCTION THEREOF |
DE4037865A1 (en) * | 1990-11-28 | 1992-06-11 | Theodor Hufer Gmbh | Sound-proofing union plate - has core of pressed wood and/or cellulose in form of briquettes |
DE4413608A1 (en) * | 1994-04-19 | 1995-10-26 | Sturm Otto Dipl Ing Fh | Composite wooden wound and heat-insulating board |
-
0
- BE BE384935D patent/BE384935A/fr unknown
- NL NL34827D patent/NL34827C/xx active
-
1930
- 1930-10-03 DE DE1930600996D patent/DE600996C/en not_active Expired
-
1931
- 1931-05-12 FR FR716969D patent/FR716969A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE600996C (en) | 1934-08-04 |
FR716969A (en) | 1931-12-30 |
NL34827C (en) |
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