EP1584767B1 - Elément de construction formé en plaque et méthode de fabrication - Google Patents

Elément de construction formé en plaque et méthode de fabrication Download PDF

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Publication number
EP1584767B1
EP1584767B1 EP05007510A EP05007510A EP1584767B1 EP 1584767 B1 EP1584767 B1 EP 1584767B1 EP 05007510 A EP05007510 A EP 05007510A EP 05007510 A EP05007510 A EP 05007510A EP 1584767 B1 EP1584767 B1 EP 1584767B1
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Prior art keywords
structural element
layer
elements
cellulose
mixture
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German (de)
English (en)
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EP1584767A1 (fr
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Wolfgang Dipl.-Ing. Fennen
Manfred Dr.-Ing. Mahler
Helmut Prof. Dr. Pasch
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    • 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

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • a device is in the US Pat. No. 3,164,511 disclosed.
  • the US Pat. No. 3,164,511 describes a component, namely a cement-bonded hardboard, for its production about rod-like wood components, such as scraping parts, veneer parts from eg Douglas fir or Hemlock fir, are used.
  • rod-like wood components such as scraping parts, veneer parts from eg Douglas fir or Hemlock fir.
  • wood components should be arranged substantially parallel to each other, at most at an acute angle of 40 ° to each other.
  • the wood components are coated with cement and arranged inside a cement matrix.
  • the weight ratio on a dry basis of the wood components to the cement content may be between about 1: 2 to about 1:10 (see Sp. 6, Z. 27 to 29).
  • the US 3,164,511A also describes a 4.8 mm (3/16 inch) thick phenolic resin bonded hardboard of the present invention (see Sp. 4 Z. 10 to 12 in connection with Sp. 4 Z. 58 to Sp. 5 Z. 6) ).
  • the density of the middle layer may be less than the density of the two outer layers (see Sp 5 Z. 5 and 6). Even those known phenolic resin-bonded hardboard is neither intended nor suitable to perform a support or thermal insulation function.
  • wood components are particularly selected in terms of their dimensions for each layer is in the DE 31 15 077 A1 a cementitious hardboard described for the production of lignocellulosic and / or cellulosic parts, such as wood chips, wood shavings or sawdust used.
  • Those cellulosic components are unfractionated mixed with cement and water and processed into cementitious hardboards (s. DE 31 15 077 A1 P. 9 para. 1), which have only one layer and which in the usual way can only fulfill a cladding function, but no special support or thermal insulation function.
  • the main fraction (64%) consists mainly of a sponge compound of 5-12 mm in length, which should provide reinforcement of building board and, connected with it, also the corresponding strengths.
  • the fines (0-5 mm) of about 14% of the total weight of the chips are placed in the outer layers.
  • the structure of the known building board is made such that a gradual transition from the outer uniform layers to the inner coarse layer takes place. Construction and production of the building board according to the DE 25 48 210 B2 are also perceived as very complicated and costly. Even those known building board is usually the cladding, but not a support or thermal insulation function.
  • a composite panel which consists of at least two layers, one layer of concrete and another of an insulating material formed from a mixture of pulp mixed with water and cement.
  • the known composite panel on an entirely made of concrete outer wall, which is a supporting element. Inside, the plate is provided with the insulation board made of pulp and cement.
  • the composite plate according to the DE 198 26 190 C1 is perceived as disadvantageous because of the supporting function of the composite panel fulfilling concrete area makes virtually no contribution to the thermal insulation of the composite panel.
  • a building block and a method for producing a concrete building block are known.
  • a first concrete is filled with a high density in a mold up to the area of its upper edge and shaken in a first process step.
  • a second concrete (lightweight concrete) with a lower bulk density is filled on the still unsolidified first concrete.
  • This results in a connection between the first and the second concrete s. EP 0 960 989 A1 Abs. [0028]).
  • a common compression of the two concrete layers by a stamp or by a pressing device.
  • the two concrete layers are compressed together in their final stage and thus only correspond to the desired dimensions of the finished building block (see paragraph [0027]).
  • the proportion of the concrete of lower density is with a relatively small layer thickness of 10 mm maximum 10% of the block (see. EP 0 960 989 A1 Sp. 4 Z. 18 to 25) and serves for easier mechanical processing, preferably by milling (see paragraph [0022]) in order to achieve a component of very high dimensional accuracy.
  • the already low and after milling even further reduced strength the concrete layer of lower density is not able to take over a sufficient thermal insulation function. This would be one in the EP 0 960 989 A1 Insulation not described in detail (see there Sp. 4 Z. 32 to 34) required.
  • porous concrete panel fulfills both a thermal insulation function and a support function.
  • thermal insulation function on the one hand and the support function on the other hand each not considered optimal.
  • the invention has for its object to provide a universally applicable device which is relatively easy to manufacture and which as an integrated component different functions, especially the support function on the one hand and the thermal insulation function on the other hand, optimally fulfilled.
  • a fundamental difference of the component according to the invention to cement-bonded hardboard, in particular in comparison to the cement-bonded hardboard according to the US Pat. No. 3,164,511 consists primarily in the fact that the device according to the invention optimally fulfills both a support function on the one hand and a thermal insulation function on the other hand.
  • the respective layer with the lower bulk density forms a thermal barrier layer and the layer with the respective greater bulk density forms a base layer.
  • an essential advantage of the device according to the invention is first that the particle size distribution of the cellulosic elements or the cellulosic elements over the thickness of a layer is not individually selected in a complicated manner, but that each layer - not just a single layer as in the hardboard according to of the DE 31 15 077 A1 - Consists essentially of the entire layer thickness of cellulosic elements or cellulosic elements of all fractions of the same grading curve.
  • This feature of the invention is essential for ease of manufacturing handling and for the highest level of manufacturing identity as a prerequisite for consistent material characteristics.
  • the mutually facing adjacent layers are produced individually one after the other.
  • a firm connection of the mutually facing adjacent layers to one another is not effected by means of a common compression penetrating all the layer thicknesses (cf. US Pat. No. 3,164,511 Sp. 7 Z. 16 to 18), but by means of their interfaces, whereby an integrated component is created.
  • the invention makes it possible to produce each individual layer individually with dimensions required for the specific application and with the desired density.
  • a gap-free homogeneous compound is preferred which, for example, by bonding the facing surfaces adjacent layers can take place.
  • both adjacent layers consist of the same mixture of cellulosic and / or cellulosic elements of all fractions of the same sieve characteristic, one layer having a relatively low cement content and the other layer being a relatively large one Cement content includes.
  • Such a composite component has, on the one hand due to the layer with the relatively low cement content, along with a lower density, a very good thermal insulation value and on the other hand because of the layer with the relatively large proportion of cement, along with a greater density, has a very good support function.
  • both adjacent layers of the component according to the invention are to be firmly connected to one another by their interfaces. In a particular embodiment of the invention, this is done in such a way that the adjacent layers penetrate in the region of their mutually facing interfaces, wherein the penetration area is a mixing zone forming a cohesive and form-fitting composite.
  • an essential feature of the invention is that the layer with the respective lower bulk density fulfills the thermal insulation function and the layer with the respectively greater bulk density fulfills the supporting function of the component.
  • the bulk density must be additionally determined or varied by varying the cellulosic elements or the cellulosic elements. This is done according to the invention in that the bulk density is additionally determined by the density of the cellulosic elements or the cellulosic elements. For example, hardwoods, especially hard tropical woods, have a higher density than softwoods.
  • the bulk density can be used to change particular building physical properties, for example to change sound transmission properties, additionally be varied by adding mineral admixtures, such as a specifically particularly heavy admixture in the form of barium sulfate, regardless of the cement content of the mixture.
  • mineral admixtures such as a specifically particularly heavy admixture in the form of barium sulfate, regardless of the cement content of the mixture.
  • the invention provides for varying the bulk density of a layer as a function of the degree of compaction. This can be done according to further inventive features in that the degree of compaction can be determined by mechanical action, in particular by vibration.
  • Pore formers can consist of a reaction mixture of lime, water and metal powder.
  • metal powder aluminum powder or zinc powder is preferable.
  • hydrogen is produced, with the effect that the layer, prior to solidification, "bakes up” like a batter, forming pores.
  • the invention provides that the cellulosic elements or the cellulosic elements have a mineralized surface.
  • such mineralization can be effected by mineralizing the surface of the cellulosic elements or of the cellulosic elements by means of water glass.
  • Another variant of the invention consists in that the surface of the cellulosic elements or of the cellulosic elements is mineralized by means of amorphous silicon dioxide.
  • the invention provides that the surface of the cellulosic elements or of the cellulosic elements is mineralized by means of lime milk or cementmilk.
  • the surface of the cellulosic elements or of the cellulosic elements is mineralized by means of lime milk or cementmilk.
  • a thin cement coating wood shavings according to the DE 195 31 481 C1 be advantageously used as mineralized cellulose elements for the production of components according to the invention.
  • the invention provides that at least one layer, in particular the layer fulfilling the supporting function of the component, is provided with reinforcing elements, such as e.g. is provided with elongated and / or lattice or net-like reinforcing elements made of metal, plastic, glass fiber or carbon.
  • reinforcing elements such as e.g. is provided with elongated and / or lattice or net-like reinforcing elements made of metal, plastic, glass fiber or carbon.
  • the invention also provides that, as part of a far-reaching prefabrication of components, at least one layer contains line elements for the passage of fluids and / or of electric current.
  • At least one layer contains graphite elements, in particular graphite powder.
  • the invention provides for adding to at least one layer heat compensating elements which are capable of, due to the phase change, e.g. to absorb heat during sunshine and to give off heat when the sun's rays disappear.
  • heat compensating elements which consist mainly of paraffin, have become known under the name "PCM” (Phase Change Material) and are for example sold by RUBITHERM GmbH, Worthdamm 13-27, 20457 Hamburg.
  • a device according to the invention may contain more than two layers, of which, however, always two adjacent to each other.
  • the invention further relates to a method as according to the features of the preamble of claim 18 by the DE 25 48 210 B2 has become known.
  • this method of preparation is considerably simplified by classifying the cellulosic elements and / or the cellulosic elements with all fractions of a particular first grading curve to produce a first layer comprising the cellulosic elements or the cellulosic elements with cement and water are mixed into a mixture, that the mixture is filled into the mold, that the mixture is shaken or vibrated to increase the degree of compaction, whereupon the second layer is produced as a mixture, which cellulose elements corresponding to the grading curve of the first layer or another Siebline or cellulosic elements, as well as cement and water, and that the second layer is applied to the first layer.
  • a molding box 11 On a vibrating table 10, a molding box 11 is placed, which mold side walls 12 and a mold bottom 13 has.
  • the vibrating table 10 is connected in a conventional manner with a vibrator or other unbalance exciter, which in Fig. 1 is symbolized by the two arrows labeled R.
  • both layers A and B are successively filled, the layer thickness is denoted by S.
  • Both layers A and B each representing a layer of lightweight wood concrete, hereinafter referred to as "HLB", in the present case each have a mixture with the same formulation.
  • the mixture consists of about 12 percent by weight of wood shavings, about 45 percent by weight of cement and about 43 percent by weight of water.
  • a first mixture for producing a first layer A is first filled and pulled smooth. Then, the vibrating table 10 is activated, so that the layer A is compressed. After a particular to be determined setting time, the previous addition of a setting accelerator, For example, water glass, can be shortened to the mixture, the second layer B is filled after an initial solidification of the layer A on the latter.
  • the layer B is subjected to no or only a short-term shaking movement, that is not compacted, so that after curing of both layers A and B, the layer A has a greater bulk density than the layer B.
  • the boundary layer of the layer A facing the layer B is denoted by FA
  • the interface of the layer B facing the layer A is denoted by FB.
  • a mixing zone M indicated by a dashed wavy line has formed in the region of the boundary surfaces FA and FAB, which connects the two layers A and B in a form-fitting and cohesive manner.
  • the cellulose elements in the present case wood shavings, ensure a positive connection within the mixing zone M.
  • the different densities of the layers A and B come in the present case not by a different recipe, but only by the fact that the layer A was mechanically compacted by vibration or by vibration, while the layer B was subject to no mechanical or only a short-term compression.
  • the bulk density e.g. of layer A by adding a larger proportion of cement to increase.
  • both layers contain cellulose elements (in the present case wood shavings) corresponding to the same grading curve with all fractions of this grading curve.
  • a grading curve (sieve residue curve) was determined as follows: I II III lV V > 0 mm 0.46 g 0.46 g 1.44% 1.44% > 1 mm 1.14 g 1.60 g 3.56% 5.00% > 2 mm 9.39 g 10.99 g 29.36% 34.37% > 4 mm 19.74 g 30.73 g 61.73% 96.09% > 8 mm 1.25 g 31.98 g 3.91% 100.00%
  • the finished composite panel component P can be removed from the molding box 11 and removed.
  • a molding box can be provided in a manner known per se with removable from the mold bottom 13 mold walls 12.
  • vibrating table 10 is not mandatory for the application of the mixture according to the invention.
  • floor slabs can be cast layer by layer in situ, and the individual layers can be compacted with mobile vibrators (so-called vibrating pears, for example).
  • Exterior wall element E shown as a partial longitudinal section has a weatherproof layer 14 on the outside, for example a plaster layer, to which a layer B (thermal barrier layer) and, subsequently, a layer A (base layer) and a layer C join.
  • a weatherproof layer 14 on the outside, for example a plaster layer, to which a layer B (thermal barrier layer) and, subsequently, a layer A (base layer) and a layer C join.
  • this outer wall component E can, as in the embodiment according to Fig. 1 , the same recipe for the layers A, B and C are assumed. Also, the production of the outer wall component E basically according to the in Fig. 1 shown type done. However, it would be useful to first cast the layer C, which forms a radiation heating layer and embeds tubes 15 through which a heat exchange medium flows.
  • the bulk density of the layer C may correspond to the bulk density of the subsequently cast-on base layer A. Accordingly, both layers C and A receive the same degree of compaction, while the thermal barrier coating B is not subjected to any or only slight compaction and therefore has the lower bulk density and therefore the greater thermal insulation capacity in comparison with the layers C and A.
  • the thermal barrier coating B can be provided with "PCM" (Phase Change Material) already described above.
  • Analogous to the composite panel component according to Fig. 1 is also in the outer wall component E between the interfaces FA and FB and between the interfaces FA and FC respectively indicated by a dashed wavy line mixing zone M is present, in each of which between the individual layers B, A and C is a particularly intimate form and material bond ,
  • a partial longitudinal section through a bottom plate component G is shown.
  • the bottom plate member G has three layers A, B and C, wherein the bulk density of the layer A to the layer C gradually decreases from layer to layer.
  • the points designated 16 within the layer A should symbolize a reinforcement, which may be formed as a metal, pulp or Faserarmtechnik. Accordingly, while the layer A having the largest bulk density and the reinforcement 16 provides the strength of the bottom plate member G, the layers B and C having the stepwise lower bulk density provide good thermal insulation.
  • the bottom plate component G according to Fig. 4 In the area of the interfaces FA and FB as well as FB and FC form and material connection causing mixing zones M are present.
  • the according to Fig. 4 shown ceiling component D and according to Fig. 5 shown roof plate component DP differ from the bottom plate component G according to Fig. 4 basically not.
  • the density of the reinforcement 16 is designed differently in accordance with the individual static conditions than the corresponding reinforcement 16 of the structural panel component G (FIG. Fig. 4 ) and the ceiling tile component DP ( Fig. 5 ). Since the components D and DP otherwise largely correspond to the bottom plate component G, further explanations are unnecessary.
  • HLB high lightweight concrete
  • the material HLB according to the invention is compared to the material lightweight concrete LB (concrete with air-enclosing elements, such as polystyrene and expanded clay), light brick LHZ (lattice clay brick), aerated concrete PB (concrete with pore formers in the form of aluminum and / or zinc powder) and Poroton PT (expanded clay lath brick).
  • lightweight concrete LB concrete with air-enclosing elements, such as polystyrene and expanded clay
  • light brick LHZ lace clay brick
  • aerated concrete PB concrete with pore formers in the form of aluminum and / or zinc powder
  • Poroton PT expanded clay lath brick
  • Fig. 6 shows that it is possible with the material according to the invention HLB to achieve a very low thermal conductivity of about 0.05 W / mK. At a bulk density of about 1000 kg / m 3 , the material according to the invention HLB still has a relatively low thermal conductivity of 0.38 W / mK.
  • the material according to the invention has a very high compressive strength of about 10.5 N / mm 2 at the mentioned bulk density of 1000 kg / m 3 , with which a relatively low thermal conductivity of 0.38 W / mk is associated.
  • the material according to the invention HLB is distinguished by a significantly greater bending and tensile strength compared to the other aforementioned materials.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Ceramic Capacitors (AREA)
  • Adornments (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Claims (21)

  1. Elément de construction, en particulier élément de construction (P) formé en plaque, présentant au moins deux couches (A, B), chaque couche (A, B) contenant des éléments de cellulose ou des éléments contenant de la cellulose, tels que des copeaux de rabotage, des cossettes de découpage, par exemple des raclures, des cossettes de papier ou analogue et chaque couche (A,B) contenant du ciment en tant que liant et, le cas échéant, des additifs, le ciment étant régulièrement réparti sur l'épaisseur de couche (S), et des couches (A, B) voisines les unes des autres étant reliées ensemble rigidement et formant entre elles des surfaces limites (FA, FB), caractérisé en ce que
    a) l'élément de construction (P) sert pour l'utilisation en tant qu'élément de construction de paroi ou mur (E), élément de construction de sol (G), élément de construction de fondation, élément de construction de toiture (DP), élément de construction de plafond (D), élément de construction de paroi de séparation, élément de construction de paroi de protection phonique, ou analogue ;
    b) chaque couche (A, B) est composée, sensiblement sur toute l'épaisseur de couche (S), d'un mélange d'éléments de cellulose ou d'éléments contenant de la cellulose de toutes les fractions de la même ligne de tamisage ;
    c) des couches (A, B) voisines les unes des autres présentent des densités volumétriques différentes, en fonction du degré de compactage et, le cas échéant, en fonction de la proportion de ciment ;
    d) la couche (B), ayant chaque fois la plus faible densité volumétrique, forme une couche d'isolation thermique, et la couche (A) ayant chaque fois la plus forte densité volumétrique, forme une couche support de l'élément de construction (P, E, G, D, DP) ;
    e) on peut obtenir l'élément de construction (P, E, G, D, DP) par le fait que les couches (A, B) voisines, tournées les unes vers les autres, sont fabriquées individuellement les unes après les autres et sont reliées rigidement ensemble au moyen de leurs surfaces limites (FA, FB).
  2. Elément de construction selon la revendication 1,
    caractérisé en ce que les couches (A, B) voisines, tournées les unes vers les autres, sont reliées ensemble par collage.
  3. Elément de construction selon la revendication 1,
    caractérisé en ce que les couches (A, B) voisines se pénètrent dans la zone de leurs surfaces limites (FA, FB) tournées les unes vers les autres, la zone de pénétrations constituant une zone de mélange (M) formant un composite à liaison par la matière et à liaison par ajustement de formes.
  4. Elément de construction selon l'une des revendications 1 à 3, caractérisé en ce que la densité volumétrique est en plus susceptible d'être déterminée par le biais de la densité des éléments de cellulose ou des éléments contenant de la cellulose.
  5. Elément de construction selon l'une des revendications 1 à 4, caractérisé en ce que la densité volumétrique est en plus susceptible d'être déterminée par ajout d'additions minérales, tel que, par exemple, par addition de sulfate de baryum.
  6. Elément de construction selon l'une des revendications 1 à 5, caractérisé en ce que le degré de compactage est susceptible d'être déterminé par effet mécanique, en particulier par vibration.
  7. Elément de construction selon l'une des revendications 1 à 5, caractérisé en ce que le degré de compactage est susceptible d'être déterminé par addition d'agents porogènes.
  8. Elément de construction selon la revendication 7,
    caractérisé en ce que l'agent porogène est composé d'un mélange de réaction composé de chaux, eau et poudre métallique.
  9. Elément de construction selon la revendication 8, caractérisé en ce que la poudre métallique est de la poudre d'aluminium ou de la poudre de zinc.
  10. Elément de construction selon l'une des revendications 1 à 9, caractérisé en ce que les éléments de cellulose ou les éléments contenant de la cellulose présentent une surface minéralisée.
  11. Elément de construction selon la revendication 10, caractérisé en ce que la surface des éléments de cellulose ou des éléments contenant de la cellulose est minéralisée au moyen de verre soluble.
  12. Elément de construction selon la revendication 10, caractérisé en ce que la surface des éléments de cellulose ou des éléments contenant de la cellulose est minéralisée au moyen de dioxyde de silicium amorphe.
  13. Elément de construction selon la revendication 10, caractérisé en ce que la surface des éléments de cellulose ou des éléments contenant de la cellulose est minéralisée au moyen de lait de chaux ou de lait de ciment.
  14. Elément de construction selon l'une des revendications 1 à 13, caractérisé en ce qu'au moins une couche, en particulier la couche (A) satisfaisant à la fonction support de l'élément de construction (P, E, G, D, DP), est munie d'éléments d'armature (16), tels que des éléments d'armature allongés et/ou du genre de grille et/ou de filet, en métal, matière synthétique, fibre de verre ou carbone.
  15. Elément de construction selon l'une des revendications 1 à 14, caractérisé en ce qu'au moins une couche (C) contient des éléments conducteurs (15), pour la transmission de fluides et/ou de courant électrique.
  16. Elément de construction selon l'une des revendications 1 à 15, caractérisé en ce qu'au moins une couche contient des éléments de graphite, en particulier de la poudre de graphite.
  17. Elément de construction selon l'une des revendications 1 à 16, caractérisé en ce qu'au moins une couche (B) contient des éléments PCM (Phase Change Material).
  18. Procédé de fabrication d'un élément de construction (P) formé en plaque, présentant plusieurs couches (A, B), procédé pour lequel, pour la fabrication d'une première couche (A), on mélange des éléments de cellulose ou des éléments contenant de la cellulose, tels que des copeaux de rabotage, des cossettes de découpage, par exemple des raclures, des cossettes de papier ou analogue, avec du ciment et de l'eau pour obtenir un mélange, suite à quoi des couches (A, B), formées à partir du mélange, sont introduites dans un moule (11), au moins une couche (A) étant ensuite compactée, et toutes les couches (A, B) étant ensuite soumises à un durcissement, caractérisé en ce que, pour fabriquer une première couche (A) de l'élément de construction formé en plaque, réalisé sous forme d'élément de construction de paroi ou mur (E), d'élément de construction de sol (G), d'élément de construction de fondation, d'élément de construction de toiture (DP), d'élément de construction de plafond (D), d'élément de construction de séparation, d'élément de construction de paroi de protection phonique, ou analogue, les éléments de cellulose et/ou les éléments contenant de la cellulose sont classés avec toutes les fractions d'une première ligne de tamisage déterminée et, ensuite, mélangés à du ciment et à de l'eau, pour former le mélange, et introduits dans le moule (11), en ce que le mélange est secoué ou soumis à une vibration de manière à augmenter le degré de compactage, suite à quoi la deuxième couche (B), contenant des éléments de cellulose et/ou des éléments contenant de la cellulose correspondant à la ligne de tamisage de la première couche (A), ainsi que du ciment et de l'eau, est appliquée sur la première couche (A), et en ce que la première couche (A) est durcie ou n'est que partiellement durcie avant que la deuxième couche (B) soit appliquée sur la première couche (A).
  19. Procédé selon la revendication 18, caractérisé en ce qu'un accélérateur de prise, tel que du verre soluble, est ajouté au mélange de la première couche (A) et/ou au mélange de la deuxième couche (B).
  20. Procédé selon la revendication 18 ou 19, caractérisé en ce qu'un agent porogène est ajouté au mélange d'au moins une couche (B).
  21. Procédé selon l'une des revendications 18 à 20,
    caractérisé en ce que, avant la fabrication du mélange, les éléments de cellulose ou les éléments contenant de la cellulose sont mis en contact intime avec du lait de chaux, du lait de ciment, du dioxyde de silicium amorphe, ou du verre soluble, pour obtenir la minéralisation de leur surface et, après durcissement de la surface minérale, sont ajoutés au mélange.
EP05007510A 2004-04-06 2005-04-06 Elément de construction formé en plaque et méthode de fabrication Active EP1584767B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05007510T PL1584767T3 (pl) 2004-04-06 2005-04-06 Element budowlany, zwłaszcza płytowy element budowlany i sposób wytwarzania elementu budowlanego, zwłaszcza płytowego elementu budowlanego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004017325A DE102004017325A1 (de) 2004-04-06 2004-04-06 Bauelement, insbesondere plattenartiges Bauelement und Verfahren zur Herstellung eines Bauelement, insbesondere eines plattenartigen Bauelements
DE102004017325 2004-04-06

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EP1584767B1 true EP1584767B1 (fr) 2009-10-07

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EP05007510A Active EP1584767B1 (fr) 2004-04-06 2005-04-06 Elément de construction formé en plaque et méthode de fabrication

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EP (1) EP1584767B1 (fr)
AT (1) ATE445052T1 (fr)
DE (2) DE102004017325A1 (fr)
ES (1) ES2333874T3 (fr)
PL (1) PL1584767T3 (fr)

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JP5548340B2 (ja) * 2008-03-31 2014-07-16 ニチハ株式会社 木質セメント板の製造方法
SE535033C2 (sv) * 2010-09-14 2012-03-20 Goesta Sundberg Ett byggnadsmaterial innefattande PCM och ett klimathölje

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US3164511A (en) * 1963-10-31 1965-01-05 Elmendorf Armin Oriented strand board
CH596403A5 (fr) * 1974-10-30 1978-03-15 Durisol Ag
DE3049997A1 (de) * 1980-03-04 1983-07-21 Kober, Harald, Ing.(grad.), 4690 Herne Bauelement aus einem faserarmierten baustoff
DE3115077C2 (de) * 1981-04-14 1986-07-24 Bison-Werke Bähre & Greten GmbH & Co KG, 3257 Springe Verfahren zum Herstellen von Platten
DE3406895A1 (de) 1984-02-25 1985-09-05 Simatupang, Maruli H., Dr., 2057 Reinbek Verfahren zur herstellung zementgebundener holzfaser-formkoerper
DE4222872C2 (de) * 1991-08-09 1996-01-25 Siempelkamp Gmbh & Co Dreischichtige Baustoffplatte auf Gipsbasis und Verfahren zur Herstellung
DE19531481C2 (de) 1995-08-25 2000-06-08 Manfred Mahler Wärmedämmaterial aus Hobelspänen
DE19826109C1 (de) 1998-06-12 1999-10-07 Bock Hans Peter Verfahren zur Herstellung einer Verbundplatte
WO2002031287A1 (fr) * 2000-10-10 2002-04-18 James Hardie Research Pty Limited Materiau de construction composite
DE10143612C1 (de) * 2001-09-06 2003-01-16 Knauf Westdeutsche Gips Bauplatte auf der Basis von Gips und Verfahren zur Herstellung derselben

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Publication number Publication date
EP1584767A1 (fr) 2005-10-12
PL1584767T3 (pl) 2010-05-31
DE502005008265D1 (de) 2009-11-19
ATE445052T1 (de) 2009-10-15
ES2333874T3 (es) 2010-03-02
DE102004017325A1 (de) 2005-10-27

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