FR2897883A1 - Thermal/acoustic insulation panel structure e.g. fire-resistant panel, for forming e.g. chimney piece, has core sandwiched between face panels, where core is in form of panel having weight lower than four hundred kilogram per cubic meter - Google Patents

Thermal/acoustic insulation panel structure e.g. fire-resistant panel, for forming e.g. chimney piece, has core sandwiched between face panels, where core is in form of panel having weight lower than four hundred kilogram per cubic meter Download PDF

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Publication number
FR2897883A1
FR2897883A1 FR0700755A FR0700755A FR2897883A1 FR 2897883 A1 FR2897883 A1 FR 2897883A1 FR 0700755 A FR0700755 A FR 0700755A FR 0700755 A FR0700755 A FR 0700755A FR 2897883 A1 FR2897883 A1 FR 2897883A1
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France
Prior art keywords
core
panel
binder
facing
panels
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Granted
Application number
FR0700755A
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French (fr)
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FR2897883B1 (en
Inventor
Jean Jacques Brunelliere
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.)
Cooperative Ouvriere de Menuiserie Ebenisterie Charpente COMEC SA
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Cooperative Ouvriere de Menuiserie Ebenisterie Charpente COMEC SA
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Priority claimed from FR0601113A external-priority patent/FR2897083B1/en
Application filed by Cooperative Ouvriere de Menuiserie Ebenisterie Charpente COMEC SA filed Critical Cooperative Ouvriere de Menuiserie Ebenisterie Charpente COMEC SA
Priority to FR0700755A priority Critical patent/FR2897883B1/en
Publication of FR2897883A1 publication Critical patent/FR2897883A1/en
Application granted granted Critical
Publication of FR2897883B1 publication Critical patent/FR2897883B1/en
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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
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/296—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and non-metallic or unspecified sheet-material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/02—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board the layer being formed of fibres, chips, or particles, e.g. MDF, HDF, OSB, chipboard, particle board, hardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/047—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/42—Layered products comprising a layer of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • 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
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/941—Building elements specially adapted therefor
    • E04B1/942—Building elements specially adapted therefor slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F19/00—Other details of constructional parts for finishing work on buildings
    • E04F19/08—Built-in cupboards; Masks of niches; Covers of holes enabling access to installations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/04—Inorganic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/04—Inorganic
    • B32B2266/053—Mineral element, e.g. asbestos or mica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/04—Inorganic
    • B32B2266/057—Silicon-containing material, e.g. glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/08—Closed cell foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/72—Density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00—Walls, panels
    • 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
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/70—Door leaves
    • E06B3/7015—Door leaves characterised by the filling between two external panels
    • E06B2003/7028—Door leaves characterised by the filling between two external panels of cementituous type, e.g. concrete

Abstract

The structure has a core (2) sandwiched between two wood fiber based face panels (3), where the face panels are assembled at the core by a binder material. The core is in the form of a panel having weight lower than four hundred kilogram per cubic meter. The core has silicon and aluminum based compounds, where forty percent of the composition of the panel of the core is formulated in silica and alumina. The panel has a thickness that is less than fifty millimeters.

Description

La présente invention concerne une structure de type panneau, d'isolationThe present invention relates to a structure of panel type, insulation

acoustique et/ou thermique, notamment pour la réalisation de trappe de visite, de façade de gaine technique ou de bloc porte.  acoustic and / or thermal, in particular for the realization of inspection hatch, technical cladding facade or door block.

Les structures d'isolation acoustique et/ou thermique réalisées sous forme de panneaux, encore appelés panneaux anti-feu ou pare-feu, font constamment l'objet d'amélioration en vue d'augmenter leur durée de tenue au feu. Toutefois, cette augmentation de la tenue au feu ne doit pas s'accompagner d'une io augmentation trop importante du poids ou de l'épaisseur ou bien encore du prix des panneaux.  Acoustic and / or thermal insulation structures made in the form of panels, also called fire or fireproof panels, are constantly being improved to increase their fire resistance. However, this increase in fire resistance should not be accompanied by an excessive increase in weight or thickness or even the price of the panels.

Les panneaux développés à ce jour présentent un poids relativement élevé. Ainsi, à titre d'exemple, une porte présentant des dimensions de 2 mètres sur 15 0,60 mètre pèse actuellement aux environs de 33 kg.  The panels developed to date have a relatively high weight. Thus, for example, a door having dimensions of 2 meters by 0.60 meters currently weighs around 33 kg.

Un but de la présente invention est donc d'optimiser la conception des structures d'isolation thermique connues à ce jour en vue de diviser par deux leur poids total afin de faciliter la manipulation de telles structures. 20 A cet effet, l'invention a pour objet une structure de type panneau, d'isolation acoustique et/ou thermique, notamment pour la réalisation de trappe de visite, de façade de gaine technique et/ou la réalisation de porte standard et de chambranles, ladite structure étant constituée d'une âme prise en sandwich 25 entre deux panneaux de parement, lesdits panneaux de parement à base de fibres de bois étant assemblés à l'âme, de préférence par collage, au moyen d'un liant, caractérisée en ce que l'âme se présente sous forme d'un panneau léger de masse volumique inférieure à 400 kg/m3, de préférence inférieure à 250 kg/m3 cette âme comportant des composés à base de silicium et 30 d'aluminium représentant en proportion en poids, au moins 40 % de la composition du panneau de l'âme exprimés en SiO2 (silice) et AI2O3 (alumine). La faible masse volumique du panneau de l'âme permet d'atteindre les objectifs fixés, à savoir diviser par deux le poids d'une telle structure par rapport à une structure traditionnelle anti-feu de même dimension.  An object of the present invention is therefore to optimize the design of thermal insulation structures known to date in order to divide by two their total weight to facilitate the handling of such structures. To this end, the subject of the invention is a structure of the panel, acoustic and / or thermal insulation type, in particular for the production of inspection hatches, technical duct facades and / or the production of standard doors and doors. frames, said structure consisting of a core sandwiched between two facing panels, said wood fiber facing facing panels being joined to the core, preferably by bonding, by means of a binder, characterized in that the core is in the form of a light density panel of less than 400 kg / m 3, preferably less than 250 kg / m 3, this core comprising silicon and aluminum compounds representing in proportion by weight, at least 40% of the core panel composition expressed as SiO 2 (silica) and Al 2 O 3 (alumina). The low density of the panel of the soul allows to achieve the objectives set, namely to divide by two the weight of such a structure compared to a traditional fireproof structure of the same size.

L'invention sera bien comprise à la lecture de la description suivante s d'exemples de réalisation, en référence aux dessins annexés dans lesquels :  The invention will be better understood on reading the following description of exemplary embodiments, with reference to the appended drawings in which:

la figure 1 représente une vue partielle en coupe transversale d'un panneau conforme à l'invention ;  Figure 1 shows a partial cross-sectional view of a panel according to the invention;

io la figure 2 représente une vue en coupe transversale d'un autre mode de réalisation d'un panneau conforme à l'invention et  FIG. 2 represents a cross-sectional view of another embodiment of a panel according to the invention and

la figure 3 représente une vue de face de la structure de type panneau représentée à la figure 2. 15 Comme mentionné ci-dessus, la structure 1 de type panneau, objet de l'invention, est destinée à résister au moins une demi-heure lors d'une exposition au feu. Elle est constituée d'une âme 2 prise en sandwich entre deux panneaux 3 de parement. Les panneaux 3 de parement sont assemblés à 20 l'âme 2, de préférence par collage, au moyen d'un liant 4.  FIG. 3 shows a front view of the panel-type structure shown in FIG. 2. As mentioned above, the panel-type structure 1, object of the invention, is designed to withstand at least half an hour during an exposure to fire. It consists of a core 2 sandwiched between two facing panels 3. The facing panels 3 are joined to the core 2, preferably by gluing, by means of a binder 4.

De manière caractéristique à l'invention, l'âme 2 se présente sous forme d'un panneau léger de masse volumique inférieure à 400 kg/m3, de préférence inférieure à 250 kg/m3, cette âme 2 comportant des composés à base de 25 silicium et d'aluminium représentant en proportion en poids, au moins 40 % de la composition du panneau de l'âme 2 exprimés en SiO2 (silice) et AI203 (alumine).  Characteristically to the invention, the core 2 is in the form of a lightweight panel with a density of less than 400 kg / m 3, preferably less than 250 kg / m 3, this core 2 comprising compounds based on 25 silicon and aluminum representing in proportion by weight, at least 40% of the composition of the panel of the core 2 expressed in SiO 2 (silica) and Al 2 O 3 (alumina).

De préférence, le silicium et l'aluminium sont présents dans l'âme 2 sous forme 30 d'un silicate d'alumine expansé, encore appelé perlite expansée.  Preferably, silicon and aluminum are present in the core 2 as an expanded alumina silicate, also called expanded perlite.

En effet, la perlite est d'abord broyée puis expansée par évacuation de l'eau contenue dans le produit. Cette âme 2 présente, en sus des composés à base 10 15  Indeed, the perlite is first milled and then expanded by evacuation of the water contained in the product. This core 2 has, in addition to the base compounds 15

3 de silicium et d'aluminium, des composés alcalins ou alcalino terreux et un liant, de préférence organique. Le liant de l'âme, présent dans l'âme 2 à une concentration au moins égale à 20 % exprimée en % en poids par rapport au poids total de l'âme, comporte au moins un composé amylacé, en particulier de l'amidon, et des fibres de verre et/ou des fibres cellulosiques. A titre d'exemple, l'âme peut présenter une analyse chimique moyenne exprimée en % en poids telle que suit : _ 2 o 0 0 _ 40 o 0 liant organique 20 - 30 % autres 0,5 - 3 %  3 of silicon and aluminum, alkaline or alkaline earth compounds and a binder, preferably organic. The binder of the core, present in the core 2 at a concentration of at least 20%, expressed in% by weight relative to the total weight of the core, comprises at least one starchy compound, in particular starch , and glass fibers and / or cellulosic fibers. By way of example, the core may have a mean chemical analysis expressed in% by weight as follows: 2 0 0 0 40 0 0 organic binder 20 - 30% other 0.5 - 3%

20 Une telle âme, avec la composition telle que ci-dessus, peut présenter une masse volumique de l'ordre de 160 kg/m3.  Such a core, with the composition as above, can have a density of the order of 160 kg / m 3.

Chaque panneau 3 de parement est quant à lui réalisé en un complexe constitué de fibres de bois de moyenne et/ou haute masse volumique et d'un 25 liant, l'ensemble ayant été pressé à haute température. Le liant utilisé peut être un condensat urée-formaldéhyde ou bien un condensat mixte à base d'urée, de mélamine, de phénol et de formaldéhyde.  Each facing panel 3 is in turn made of a complex consisting of wood fibers of medium and / or high density and a binder, the whole having been pressed at high temperature. The binder used may be a urea-formaldehyde condensate or a mixed condensate based on urea, melamine, phenol and formaldehyde.

3o Le panneau de l'âme 2 présente une épaisseur inférieure à 50 mm, de préférence comprise entre 25 et 40 mm. Chaque panneau 3 de parement, constitué de fibres de bois haute masse ro  3o The panel of the core 2 has a thickness of less than 50 mm, preferably between 25 and 40 mm. Each panel 3 facing, consisting of wood fibers high mass ro

4 volumique, est par exemple obtenu à partir d'un mélange d'un liant et de fibres retraitées selon un procédé à sec. Le mélange est pressé à haute température en utilisant un procédé de fabrication à plat en continu. Les panneaux de fibres de bois haute masse volumique obtenus présentent une épaisseur comprise dans la plage [2 û 50] mm et une masse volumique de 600 à 850 kg/m3. Le panneau final, formé de l'âme 2 enserrée entre les deux panneaux 3 de parement, présente quant à lui un poids total compris dans la plage [10 - 15] kg/m2 pour une épaisseur de 34 mm. Les panneaux de parement sont assemblés par pressage à chaud à l'âme 2. A cet effet, il est utilisé un liant qui peut être constitué d'une colle vinylique. Cette colle peut également être formée d'un mélange urée-formol.  4 volume, for example is obtained from a mixture of a binder and dry-processed fibers. The mixture is pressed at high temperature using a continuous flat-making process. The high density wood fiber panels obtained have a thickness in the range [2 to 50] mm and a density of 600 to 850 kg / m3. The final panel, formed of the core 2 sandwiched between the two facing panels 3, has meanwhile a total weight in the range [10-15] kg / m2 for a thickness of 34 mm. The facing panels are assembled by hot pressing to the core 2. For this purpose, a binder is used which may consist of a vinyl adhesive. This glue may also be formed of a urea-formaldehyde mixture.

15 Bien évidemment, d'autres types de colle peuvent être utilisés.  Of course, other types of glue can be used.

La structure ainsi formée peut être découpée à volonté pour la réalisation du produit à réaliser, tel que trappe de visite, façade de gaine technique, bloc porte ou autre.  The structure thus formed can be cut at will for the realization of the product to be produced, such as inspection hatch, facade cladding, door block or other.

20 Dans un mode de réalisation particulier de l'invention, conforme à celui représenté aux figures 2 et 3, les panneaux 3 de parement sont de dimension sensiblement supérieure à l'âme 2 centrale et ménagent, par leur débord extérieur, au moins un espace d'insertion d'une poutre 5 de renforcement, dite 25 alaise, venant en appui par l'une de ses faces contre une tranche, telle qu'une tranche longitudinale, de l'âme 2. Dans l'exemple représenté, la structure comporte une pluralité de poutres 5 de renforcement, en l'occurrence quatre poutres, formant un encadrement de l'âme 2. Chaque poutre s'insère entre deux parements 3 et vient en appui contre une tranche longitudinale ou 30 transversale de l'âme 2. Ces alaises sont destinées à recevoir notamment des éléments de fermeture d'une porte, tels que des charnières. Chaque poutre 5 de renforcement peut être constituée d'une plaque 6 de plâtre ou de gypse, de préférence à structure fibreuse, enserrée entre deux panneaux 7 de parement 5 à base de fibres de bois, assemblés à l'âme, de préférence par collage, au moyen d'un liant, lesdits panneaux 7 de parement de la poutre 5 de renforcement venant s'appliquer contre les faces internes des panneaux 3 de parement de ladite structure 1. II en résulte une structure parfaitement efficace contre le feu. Par ailleurs, son poids extrêmement faible rend une telle structure aisément manipulable pour des applications diverses et variées. ioIn a particular embodiment of the invention, in accordance with that shown in FIGS. 2 and 3, the facing panels 3 are of dimension substantially greater than the central core 2 and provide, by their outer edge, at least one space. insertion of a beam 5 of reinforcement, said 25 alaise, bearing by one of its faces against a wafer, such as a longitudinal edge, of the core 2. In the example shown, the structure comprises a plurality of reinforcing beams 5, in this case four beams, forming a frame of the core 2. Each beam is inserted between two facings 3 and bears against a longitudinal or transverse edge of the core 2 These louvers are intended to receive including closing elements of a door, such as hinges. Each reinforcing beam 5 may consist of a plaster or gypsum board 6, preferably of fibrous structure, sandwiched between two facing panels 5 based on wood fibers, assembled to the core, preferably by gluing. by means of a binder, said facing panels 7 of the reinforcing beam 5 being pressed against the internal faces of the facing panels 3 of said structure 1. This results in a structure that is perfectly effective against fire. Moreover, its extremely low weight makes such a structure easily manipulated for various and varied applications. io

Claims (9)

REVENDICATIONS 1. Structure (1) de type panneau, d'isolation acoustique et/ou thermique, notamment pour la réalisation de trappe de visite, de façade de gaine s technique et/ou la réalisation de porte standard et de chambranles, ladite structure (1) étant constituée d'une âme (2) prise en sandwich entre deux panneaux (3) de parement, lesdits panneaux de parement, à base de fibres de bois, étant assemblés à l'âme (2), de préférence par collage, au moyen d'un liant (4), 10 caractérisée en ce que l'âme (2) se présente sous forme d'un panneau léger de masse volumique inférieure à 400 kg/rn3, de préférence inférieure à 250 kg/m3, cette âme (2) comportant des composés à base de silicium et d'aluminium représentant en proportion en poids, au moins 40 % de la composition du panneau de l'âme (2) exprimés en SiO2 (silice) et AI2O3 (alumine). 15  1. Structure (1) of panel type, acoustic and / or thermal insulation, in particular for the realization of inspection hatch, technical duct facade and / or the realization of standard door and doorframes, said structure (1 ) consisting of a core (2) sandwiched between two facing panels (3), said facing panels, based on wood fibers, being assembled to the core (2), preferably by gluing, to means of a binder (4), characterized in that the core (2) is in the form of a light weight panel of less than 400 kg / m 3, preferably less than 250 kg / m 3, this core (2) comprising compounds based on silicon and aluminum representing in proportion by weight, at least 40% of the composition of the core panel (2) expressed as SiO2 (silica) and Al2O3 (alumina). 15 2. Structure (1) selon la revendication 1, caractérisée en ce que le silicium et l'aluminium sont présents dans l'âme (2) sous forme d'un silicate d'alumine expansé, encore appelé perlite expansée. 20  2. Structure (1) according to claim 1, characterized in that the silicon and aluminum are present in the core (2) in the form of an expanded alumina silicate, also called expanded perlite. 20 3. Structure (1) selon l'une des revendications 1 et 2, caractérisée en ce que l'âme (2) présente, en sus des composés à base de silicium et d'aluminium, des composés alcalins ou alcalino terreux et un liant de préférence organique. 25  3. Structure (1) according to one of claims 1 and 2, characterized in that the core (2) has, in addition to compounds based on silicon and aluminum, alkaline or alkaline earth compounds and a binder preferably organic. 25 4. Structure (1) selon la revendication 3, caractérisée en ce que le liant de l'âme, présent dans l'âme (2) à une concentration au moins égale à 20 % exprimée en % en poids par rapport au poids total de l'âme, comporte au moins un composé amylacé et des fibres de verre et/ou des fibres cellulosiques. 30  4. Structure (1) according to claim 3, characterized in that the binder of the core, present in the core (2) at a concentration of at least 20% expressed in% by weight relative to the total weight of the core comprises at least one starchy compound and glass fibers and / or cellulosic fibers. 30 5. Structure (1) selon l'une des revendications 1 à 4, caractérisée en ce que le panneau de l'âme (2) présente une épaisseur inférieure à 50 mm, de préférence comprise entre 25 et 40 mm. 6  5. Structure (1) according to one of claims 1 to 4, characterized in that the panel of the core (2) has a thickness less than 50 mm, preferably between 25 and 40 mm. 6 6. Structure (1) selon l'une des revendications 1 à 5, caractérisée en ce que chaque panneau (3) de parement est réalisé en un complexe constitué de fibres de bois de moyenne et/ou haute densité et d'un 5 liant, l'ensemble ayant été pressé à haute température.  6. Structure (1) according to one of claims 1 to 5, characterized in that each panel (3) facing is made of a complex consisting of medium and / or high density wood fibers and a binder , the whole having been pressed at high temperature. 7. Structure (1) selon l'une des revendications 1 à 6, caractérisée en ce que le liant (4), entre panneau (3) de parement et âme (2), est une colle vinylique ou une colle urée-formol. i0  7. Structure (1) according to one of claims 1 to 6, characterized in that the binder (4) between panel (3) facing and core (2), is a vinyl adhesive or a urea-formaldehyde glue. i0 8. Structure (1) selon l'une des revendications 1 à 7, caractérisée en ce que les panneaux (3) de parement sont de dimension sensiblement supérieure à l'âme (2) centrale et ménagent, par leur débord extérieur, au moins un espace d'insertion d'une poutre (5) de renforcement, dite 15 alaise, venant en appui par l'une de ses faces contre une tranche, telle qu'une tranche longitudinale, de l'âme (2).  8. Structure (1) according to one of claims 1 to 7, characterized in that the facing panels (3) are of dimension substantially greater than the central core (2) and provide, by their outer edge, at least an insertion space of a beam (5) of reinforcement, said alaise, bearing by one of its faces against a wafer, such as a longitudinal edge, of the core (2). 9. Structure (1) selon la revendication 8, caractérisée en ce qu'elle comporte une pluralité de poutres (5) de 20 renforcement formant un encadrement de l'âme (2). 10I. Structure (1) selon l'une des revendications 8 et 9, caractérisée en ce que chaque poutre (5) de renforcement est constituée d'une plaque (6) de plâtre ou de gypse, de préférence à structure fibreuse, enserrée 25 entre deux panneaux (7) de parement à base de fibres de bois, assemblés à l'âme, de préférence par collage, au rnoyen d'un liant, lesdits panneaux (7) de parement de la poutre (5) de renforcement venant s'appliquer contre les faces internes des panneaux (3) de parement de ladite structure (1). 30  9. Structure (1) according to claim 8, characterized in that it comprises a plurality of reinforcing beams (5) forming a frame of the core (2). 10I. Structure (1) according to one of claims 8 and 9, characterized in that each beam (5) of reinforcement consists of a plate (6) of plaster or gypsum, preferably with a fibrous structure, sandwiched between two panels (7) for facing made from wood fibers, assembled to the core, preferably by gluing, by means of a binder, said facing panels (7) of the reinforcing beam (5) being applied against the internal faces of the facing panels (3) of said structure (1). 30
FR0700755A 2006-02-08 2007-02-02 PANEL TYPE STRUCTURE, ACOUSTIC AND / OR THERMAL INSULATION Expired - Fee Related FR2897883B1 (en)

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WO2010013085A1 (en) * 2008-07-31 2010-02-04 Jorge Enrique Celis Marin Flame-retarding arrangement in reinforced-plastic boats
FR2943699A1 (en) * 2009-03-31 2010-10-01 Vincent Damour Fire resistant sandwiched panel for e.g. doors integrated in fire door assembly, has core sandwiched between weather boards made of wood fibers which is assembled at core using binder by gluing
FR2956691A1 (en) * 2010-02-23 2011-08-26 Entpr Breheret Panel for interior joinery e.g. facade, of residential building, has central panel whose thickness and density ranges between specific values, where panel comprises two faces that oppose against each other
WO2011124292A1 (en) * 2010-04-09 2011-10-13 Knauf Perlite Gmbh Sandwich element for building construction, method for creating such a sandwich element, and use of an insulating panel
CN107187147A (en) * 2017-05-19 2017-09-22 张越 A kind of heat-insulating sound-insulating color steel
WO2017182628A1 (en) * 2016-04-21 2017-10-26 Patrick Leleu Furnier Gmbh Layer material with fire-proofing treatment, finishing panel, method for producing a layer material and use of a sealing material

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FR2849460A1 (en) * 2002-12-26 2004-07-02 Cooperative Ouvriere De Menuis Insulation board, for acoustic and/or thermal insulation for use as fire doors and the like, has a core of plaster or gypsum in a sandwich structure between wood fiberboard layers
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WO2004042181A1 (en) * 2002-10-31 2004-05-21 Jeld-Wen, Inc. Multi-layered fire door and method for the making of same
FR2849460A1 (en) * 2002-12-26 2004-07-02 Cooperative Ouvriere De Menuis Insulation board, for acoustic and/or thermal insulation for use as fire doors and the like, has a core of plaster or gypsum in a sandwich structure between wood fiberboard layers
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WO2010013085A1 (en) * 2008-07-31 2010-02-04 Jorge Enrique Celis Marin Flame-retarding arrangement in reinforced-plastic boats
FR2943699A1 (en) * 2009-03-31 2010-10-01 Vincent Damour Fire resistant sandwiched panel for e.g. doors integrated in fire door assembly, has core sandwiched between weather boards made of wood fibers which is assembled at core using binder by gluing
FR2956691A1 (en) * 2010-02-23 2011-08-26 Entpr Breheret Panel for interior joinery e.g. facade, of residential building, has central panel whose thickness and density ranges between specific values, where panel comprises two faces that oppose against each other
WO2011124292A1 (en) * 2010-04-09 2011-10-13 Knauf Perlite Gmbh Sandwich element for building construction, method for creating such a sandwich element, and use of an insulating panel
EP2374959B1 (en) * 2010-04-09 2014-10-22 KNAUF AQUAPANEL GmbH Sandwich element for construction and method for producing same
WO2017182628A1 (en) * 2016-04-21 2017-10-26 Patrick Leleu Furnier Gmbh Layer material with fire-proofing treatment, finishing panel, method for producing a layer material and use of a sealing material
CN107187147A (en) * 2017-05-19 2017-09-22 张越 A kind of heat-insulating sound-insulating color steel

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