EP0034345B1 - Plaque de construction de grand format, procédé de fabrication de celle-ci et élément de mur de hauteur d'étage à partir de ces plaques - Google Patents

Plaque de construction de grand format, procédé de fabrication de celle-ci et élément de mur de hauteur d'étage à partir de ces plaques Download PDF

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Publication number
EP0034345B1
EP0034345B1 EP81101009A EP81101009A EP0034345B1 EP 0034345 B1 EP0034345 B1 EP 0034345B1 EP 81101009 A EP81101009 A EP 81101009A EP 81101009 A EP81101009 A EP 81101009A EP 0034345 B1 EP0034345 B1 EP 0034345B1
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EP
European Patent Office
Prior art keywords
building board
board
building
green
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81101009A
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German (de)
English (en)
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EP0034345A1 (fr
Inventor
Rüdiger Dipl.-Ing. Kammerer
Arnd Dipl.-Ing. Zoller
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STREIF AG
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STREIF AG
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Priority to AT81101009T priority Critical patent/ATE5986T1/de
Publication of EP0034345A1 publication Critical patent/EP0034345A1/fr
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Publication of EP0034345B1 publication Critical patent/EP0034345B1/fr
Expired legal-status Critical Current

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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
    • E04C2/26—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
    • E04C2/288—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 concrete, stone or stone-like material
    • E04C2/2885—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 concrete, stone or stone-like material with the insulating material being completely surrounded by, or embedded in, a stone-like material, e.g. the insulating material being discontinuous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
    • B28B1/522—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement for producing multi-layered articles

Definitions

  • the invention relates to a large-format building board, a method for producing the same as well as a device for carrying out the method and a floor-to-ceiling wall element made of such building boards.
  • Wood wool lightweight building boards are known from this, in which cement or magnesite is used as a binder. These wood wool lightweight panels are used as insulation panels, mainly thermal insulation panels and acoustic panels in the building industry. Such lightweight boards have a low weight and good thermal insulation, but their mechanical strength is low. For this reason, they cannot be produced with dimensions at floor level of a building, since they are not sufficiently resistant to bending, in particular because of their pile porosity. If such wood wool lightweight building boards are to be attached to an outer wall of the building, a special protective layer, such as a multi-layer plaster, must be applied to the outer surface in order to achieve weather resistance. Fastening means such as nails and screws are used to fasten such a lightweight building board, but they are anchored in this lightweight building board itself only with little load.
  • cement-bonded particle boards are also known from the literature reference mentioned above, which have a higher density and have closed edges and a dense, fine surface.
  • the higher density of such a cement-bonded chipboard leads to an improved mechanical strength, but has the disadvantage that it is relatively brittle, so that difficulties arise when using conventional fastening means such as nails and screws.
  • the wood wool lightweight boards with magnesite or cement as a binder and the cement-bonded chipboard are essentially homogeneous in cross-section.
  • cement-bonded chipboard With cement-bonded chipboard, the extraction of wood chips is easier because only softwood particles need to be pretreated with chemical substances for mineralization. These pre-treated softwood particles are then mixed with cement as a binder. To set the cement as a binder, however, longer dwell times of the casting material introduced into the mold must be accepted, for which purpose air-conditioned treatment conditions must be observed in a predetermined manner and, in addition, a ripening process must be used for curing. Finally, the cement-bonded chipboard still has to be trimmed and packaged, since it has low edge breaking strength values, so that transport damage is to be feared without such finishing. The trimming and trimming can only be carried out after complete curing, since large shrinkage losses occur during curing.
  • a plant for the production of dense, cement-bound chipboard comprises several highly developed individual machines arranged one behind the other, which are associated with high production costs.
  • a mill is provided for processing the wood chips, which classifies the chips by sieving and, depending on their grain size, releases them to the corresponding storage silos.
  • the chemical substances required for mineralization during the pretreatment are first added.
  • the cement and water are then added.
  • the previously prepared mix is then spread onto the mold-forming bulk sheets.
  • a high-pressure press then carries out the high compression, which is essential to achieve the desired high bending, tensile and compressive strength. After compaction, the panels are transported to climatic chambers, which are followed by ripening chambers with drying ovens for complete curing.
  • trimming and trimming devices are then necessary for post-processing before the boards can be brought to storage facilities.
  • the material feed In order to ensure the desired board thickness while maintaining a tight tolerance, the material feed must be dosed precisely and reliably, which requires expensive and complex feed devices, which are usually electronically controlled.
  • wall elements with lightweight wood wool panels For this purpose, a wooden frame is used, on which lightweight wood wool panels are attached for planking. These wood wool lightweight panels only seal the surface of the wall element and cannot perform any structural design tasks.
  • the load-bearing capacity of such a wall element depends exclusively on the dimensions of the wooden cross-section for the wooden frame.
  • the lightweight panels do not form any bracing that could prevent them from buckling. To protect against the effects of the weather, the surface of the lightweight panels still needs to be sealed.
  • the wooden frame must also be treated in such a way that it is reliably protected against moisture, fire and rotting.
  • wall elements with asbestos-cement or cement-bonded chipboard can also be created, whereby the connection and fastening of the chipboard to the wooden frame is particularly difficult.
  • the invention aims to overcome the disadvantages and difficulties described above with large-format building boards, in the production thereof, in the devices for producing such a building board and in the production of wall elements. Therefore, according to the invention, a building board is to be created which simultaneously fulfills several conflicting requirements and combines several properties which are independent of one another, which is in particular resistant to fire, water, insects and rotting and which is reliable fastening with the aid of fastening means such as nails and Screws are only permitted using standard carpentry hand tools that are dimensionally stable and true to size, as well as highly resilient with regard to bending, tensile and compressive loads.
  • the building board should also be easy to assemble and be able to use cheap aggregates.
  • the method and the device for producing such a building board according to the invention are to be simplified considerably in order to achieve the most favorable possible production costs.
  • the production should also be made possible in an energy-saving manner while keeping production times as short as possible, even with the use of less qualified operating personnel.
  • a wall element made from such building boards according to the invention should be such that it can perform static functions and is sufficiently stiffened.
  • the large-format building board according to the invention comprises several fresh-in-freshly cast layers, both in the core area and on the outer surface (s). As a result, the individual layers are interlocked or clawed together, so that they are firmly and resiliently connected to one another.
  • the building board provides a uniform, in several cast steps in succession, so that even panel qualities are reliably guaranteed with regard to the load-bearing capacity.
  • the large-format building board according to the invention is inhomogeneous in cross-section and has a less dense core area, consisting of layers of different densities, different strengths and thicknesses and at least one thin layering as the outer surface, which is dense and smooth. This layering of the outer surface forms a kind of dense outer skin that reliably keeps all weather influences away.
  • the thin layering for the dense outer surface also extends over the narrow sides of the building board, so that closed building board edges are obtained at least on one side.
  • This thin layer forming an outer skin also prevents the risk of shrinkage and bending cracks, since there is no shrinkage hindrance due to the core area.
  • the fine materials in the fine mortar of this outermost layer which are expediently granular and fibrous, increase the tensile, bending and compressive strength, as a result of which the load-bearing capacity of the building board according to the invention is substantially improved overall.
  • no additional plaster overlay is required as a finish for the building board according to the invention, so that additional external work required after the building board has been installed can also be saved.
  • An example of an area of application for the building board according to the invention is the lost formwork, which thereby forms a reliable bond with the concrete and has a surface that can be painted and papered on the side facing away from the concrete. If such a building board is to be used for screed, floorboards or the like, it expediently has two tight, smooth outer surfaces.
  • the cross-sectional center forms the line of symmetry of the layers of the building board, it is also suitable for those areas of application in which bending stresses exerted on the building board are unavoidable.
  • raw materials are used which essentially arise as waste products and only need to be classified and pretreated.
  • sawdust, wood chips from waste wood or branches, prepared reed plants and agricultural waste products such as cotton stalks, rice husks, bar alley, coconut fibers, bamboo chips or the like can be considered as additives.
  • relatively inexpensive raw materials are used as additives in the building board according to the invention, so that the material costs alone bring a considerable economic advantage.
  • the fresh-in-freshly poured layering which forms the outer surface of the large-format building board according to the invention, can also be granular to a certain extent. But it is still elastic and resistant to bending. Above all, it is also weatherproof because the latent hydraulic binder is self-sealing due to the absorption of moisture due to swelling.
  • the stored organic fibrous additives also serve as reinforcement to improve the load capacity.
  • a layer forming the outer surface has an open-pored and rough surface, a reliable, intimate adhesive bond with a flat mortar connection can be guaranteed.
  • Titanium dioxide for example, is suitable as a pigment.
  • such a building board is relatively inexpensive to handle and transport, since even at a floor-to-ceiling design of the building board has a relatively low dead weight.
  • cement-bonded chipboard has a bulk density of> 1200 kg / m 3
  • wood wool lightweight boards can have a maximum bulk density of 460 kg / m 3 .
  • Even a building board only 20 mm thick with storey-high dimensions according to the invention withstands the bending and transport stresses that occur.
  • the process for producing a large-sized building board according to the invention according to claims 7 to 12 brings with it significant simplifications, since on the one hand the metering and feeding of the mixed material for the individual layers and on the other hand the heat required for setting do not lead to complications or to prolonged curing times. Any excess amounts that may occur during metering do not affect the board thickness in the manufacturing process according to the invention, but only the density of the building board, since in particular the layers in the core area can be compressed with a lower density. Accordingly, the method according to the invention ensures the production of building boards with a uniform board thickness without great effort.
  • the setting times can even be shortened considerably, since the heat of hydration released by the binder not only accelerates the hardening rate, but also heats up the cast layer due to the exothermic heat of reaction tion enables, so that the method according to the invention is not only energy-saving, but also brings significantly shorter manufacturing times with it.
  • a plurality of plates can also be produced directly one after the other by stacking one above the other, which results in production-related advantages which are readily apparent.
  • the building boards harden within 8 hours without additional air conditioning or heating so that they can be removed from the mold, transported and stored.
  • the intimate bond of the layers is strengthened by processing the mixed material of the layers fresh-in-fresh. If a mixture of Portland cement and tricalciumaluminate-rich cement is used as the hydraulic binder, the pretreatment for mineralization of the organic additives is expediently carried out with a chemical agent such that the setting of the hydraulic binder is delayed.
  • the fine mortar for the layering on the outer surface preferably contains the tightness and strength-increasing additives made of latent hydraulic material such as pozzolana, trass, fly ash and the like. the like
  • the wall element finally specified in claims 13 to 15 can be used and prefabricated without difficulty as a load-bearing construction element during construction.
  • the building board shown in cross section in Fig. 1 has five layers 1,2,3,2,1 and is designed in cross section symmetrical to a plane passing through the cross section center.
  • the layers 1 of the outer surfaces have the highest density and the greatest strength. They consist of a fine mortar mixture of binder and fine materials with a thickness such that the fibrous, organic additives are covered. These layers form a dense mortar skin, which, through the fresh-in-fresh pouring of the individual layers, is intimately connected to layers 2 and 3 of the core area by clawing and interlocking.
  • the middle layer 3 of the core area has the lowest density, the lowest strength and the smallest modulus of elasticity. It encloses the largest cavities and has the largest relative proportion of aggregates. Starting from the cross-sectional center of the building board, the strength increases up to the outer layers 1 and 2, the density increases and the modulus of elasticity also increases.
  • the surfaces of the outer layers 1 are designated 01 and 02.
  • the surface 01 is formed by the mold base and is flat and smooth.
  • the surface 02 is formed by the mold cover, in which a fine mortar with a stiff consistency consisting of binder, short wood chips, fibers or the like is introduced into the mold before compaction. When the mold cover is put on, an open-pore, rough surface 02 is formed, which can be profiled, grained or structured in accordance with the design of the underside of the mold cover.
  • this outer layer 1 also extends over the longitudinal edges, so that closed edges are obtained in the building board.
  • a wall element which expediently has a rectangular frame with an aspect ratio of 1: 2 and is storey-high.
  • the frame is formed by strips 4 and 5 of the building board described above.
  • the plate strips 4 and 5 are connected to the butt joints, for example, with mechanical connecting means and / or an adhesive.
  • a fast-setting fine mortar is expediently used, which is indicated by m in FIGS. 2, 4 and 5.
  • the frame of the wall element consists of two superimposed strips 4 and 5 from the building board of FIG. 1, and comprises a total of four frame legs.
  • the frame of the wall element may be used several plate strips to create the frame of the wall element, which expediently overlap in the corners, as shown in FIG. 3.
  • a fast-setting fine cement mortar is expediently used for the connection for the plate strips of the frame of the wall element and also for the connection with the building boards 6, 6 placed on the planking.
  • This fine cement mortar is not only easy to work with, but also forms a strong bond with both the rough surface 02 and the smooth surface 01.
  • the plate strips 4, 5 of the frame are expediently connected to one another with the building board 6 serving as cladding in such a way that a surface 01 of the building board comes together with a surface 02 at the connection point.
  • the building board 6 serving as cladding in such a way that a surface 01 of the building board comes together with a surface 02 at the connection point.
  • two rough surfaces 02 of the building board also abut or abut one another when the wall element is created.
  • a hollow box cross section is formed by the frame with the elements 4 and 5.
  • Such a wall element has a high dimensional accuracy in terms of thickness, since the building board 6 is connected to the frame consisting of board strips under pressure under the use of a stop such that any tolerances and dimensional deviations in the thickness of the building boards are compensated for by different mortar layer thicknesses.
  • the building boards 6 in the wall element according to FIGS. 4 and 5 have a uniform overhang n on all sides.
  • this overhang n forms a rectangular, groove-shaped, circumferential recess. This in particular simplifies the assembly of several wall elements at the joints.
  • other design forms of the projection n are also possible, the frame of the wall element even protruding from the edges of the wall panels 6 serving as cladding, so that a type of spring is obtained.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Panels For Use In Building Construction (AREA)

Claims (15)

1. Panneau mural de grandes dimensions dont les bords ont une grande longueur correspondant à la hauteur d'étage souhaitée, qui contient des agrégats fibreux organiques et des liants hydrauliques en sorte que le panneau a, en section transversale, une zone d'âme (2 et 3) épaisse de moindre densité avec des fibres grossières, et au moins une surface extérieure (1) mince, plus dense en matériaux fins, caractérisé en ce que la zone d'âme comporte des couches (2 et 3) d'épaisseur variable coulées l'une sur l'autre matériau frais sur matériau frais, qui sont plus denses et dont la résistance va en augmentant en partant du milieu de la section transversale, et en ce que la surface extérieure dense est une couche (1 ) ayant une surface lisse (01) également coulée matériau frais sur matériau frais, qui s'étend sur les petits côtés du panneau en formant des arêtes fermées étanches.
2. Panneau mural selon la revendication 1, caractérisé en ce que la seconde surface extérieure est également une couche mince (1) coulée matériau frais sur matériau frais, qui a éventuellement une surface rugueuse à pores ouverts (02) qui est imbriquée avec la couche (2) du dessous à la surface de séparation.
3. Panneau mural selon l'une des revendications 1 ou 2, caractérisé en ce que les couches (1, 2, 3) sont symétriques par rapport à un plan passant par le milieu de la section transversale.
4. Panneau mural selon l'une des revendications 1 à 3, caractérisé en ce qu'au moins une couche (1) pour la surface extérieure, de préférence celle ayant la surface lisse (01), est colorée notamment au moyen de pigments minéraux liés par le liant et rendue résistante aux intempéries.
5. Panneau mural selon l'une des revendications 1 à 4, caractérisé en ce que le liant hydraulique est un mélange de ciment de Portland et de ciment alumineux tricalcique.
6. Panneau mural selon l'une des revendications 1 à 5, caractérisé en ce que les couches (1,2, 3) du panneau mural ont, dans l'ensemble, une densité apparente moyenne inférieure à 800 kg/ m3 et/ou, pour une épaisseur de panneau de 20 à 40 mm, la résistance à la pression parallèlement au plan du panneau est comprise entre 5 et 3 N/mm2.
7. Procédé pour fabriquer un panneau mural de grandes dimensions dont les bords ont une longueur correspondant à la hauteur d'étage souhaitée, qui contient des agrégats fibreux organiques et des liants hydrauliques en sorte que le panneau a, en sectipn transversale, une zone d'âme (2, 3) épaisse, de moindre densité avec des fibres grossières, et au moins une surface extérieure (1 ) plus mince et plus dense aux matériaux fins, selon lequel un liant hydraulique et un agrégat organique prétraité pour la minéralisation sont mélangés pour former un mélange pour la ou les couches, lequel mélange est ensuite introduit dans un moule et compacté et durci sans contrainte, caractérisé en ce qu'on met en premier dans le moule, en tant que couche mince (1) pour la surface extérieure du panneau mural, un mortier fin constitué d'un liant hydraulique et de matériaux fins dans un rapport de poids supérieur à 1:1, avec la consistance d'une bouillie, de façon que les parois latérales du moule soient couvertes, en ce que, ensuite, pour la zone d'âme (2,3) du panneau mural, plusieurs masses de remplissage ayant des rapports différents entre le liant hydraulique et les agrégats sont coulées l'une sur l'autre en différentes quantités, matériau frais sur matériau frais, en ce qu'un compactage préalable est effectué en respectant dans la.zone d'âme (2, 3) une porosité des débris, et en ce que, enfin, le cas échéant, une autre masse de mortier fin est coulée par-dessus en tant que seconde couche (1) pour une seconde surface, matériau frais sur matériau frais, éventuellement en formant une surface (02) rugueuse à pores ouverts.
8. Procédé selon la revendication 7, caractérisé en ce que plusieurs panneaux muraux sont coulés en étant superposés dans une pile de panneaux.
9. Procédé selon l'une des revendications 7 ou 8, caractérisé en ce que, pour colorer la masse de mortier fin introduite en premier, le fond du moule est au préalable enduit de colorant ou bien une feuille ou une nappe, de préférence imprimée avec un colorant minéral, est mise en place.
10. Procédé selon l'une des revendications 7 à 9, caractérisé en ce qu'on ajoute au mortier fin des agents et/ou des pigments à grains fins qui augmentent la densité et la résistance.
11. Procédé selon l'une des revendications 7 à 10, caractérisé en ce que le traitement préalable pour minéraliser l'agrégat organique est effectué avec un produit chimique tel que la prise du liant hydraulique alumineux tricalcique est retardée.
12. Dispositif selon l'une des revendications 7 à 11, caractérisé en ce que, pendant la prise et le durcissement, le mélange est isolé de la chaleur.
13. Elément de mur de la hauteur d'un étage comportant des bandes d'un panneau mural et au moins deux panneaux selon l'une des revendications 1 à 6, caractérisé par un cadre fermé (4 et 5) rectangulaire constitué par des bandes de panneau, qui est habillé des deux côtés avec des panneaux muraux (6) en respectant un dépassement (n) uniforme sur tous les côtés, la surface lisse et dense (01 ) d'au moins un panneau mural (6) étant découverte et les bandes de panneau mural et/ou les panneaux muraux (6) servant d'habillage étant reliés, de préférence, en utilisant un mortier fin au ciment (m) à prise rapide.
14. Elément de mur de la hauteur d'un étage selon la revendication 13, caractérisé en ce que toutes les branches (4, 5) du cadre sont constituées par un nombre entier de bandes de panneaux, qui sont reliées ensemble et dont la largeur est égale à deux à six fois l'épaisseur des panneaux.
15. Elément de mur selon l'une des revendications 13 ou 14, caractérisé en ce que les bandes de panneaux muraux se chevauchent dans les angles du cadre (fig. 3).
EP81101009A 1980-02-15 1981-02-13 Plaque de construction de grand format, procédé de fabrication de celle-ci et élément de mur de hauteur d'étage à partir de ces plaques Expired EP0034345B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81101009T ATE5986T1 (de) 1980-02-15 1981-02-13 Grossformatige bauplatte, verfahren zur herstellung derselben und geschosshohes wandelement aus solchen bauplatten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803005707 DE3005707A1 (de) 1980-02-15 1980-02-15 Grossformatige bauplatte und verfahren zu deren herstellung, sowie aus diesen platten bestehendes wandelement
DE3005707 1980-02-15

Publications (2)

Publication Number Publication Date
EP0034345A1 EP0034345A1 (fr) 1981-08-26
EP0034345B1 true EP0034345B1 (fr) 1984-01-25

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EP81101009A Expired EP0034345B1 (fr) 1980-02-15 1981-02-13 Plaque de construction de grand format, procédé de fabrication de celle-ci et élément de mur de hauteur d'étage à partir de ces plaques

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EP (1) EP0034345B1 (fr)
AR (1) AR229968A1 (fr)
AT (1) ATE5986T1 (fr)
DE (2) DE3005707A1 (fr)

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DE102005014577A1 (de) * 2005-03-31 2006-10-12 Heraklith Ag Verbundelement

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GB2130627A (en) * 1982-11-02 1984-06-06 H L & H Timber Products Load support members
DE102015100218A1 (de) * 2015-01-09 2016-07-14 Guido Schulte Plattenförmiges Bauelement
DE102016100098A1 (de) 2016-01-04 2017-07-06 Guido Schulte Plattenförmiges Bauelement
DE102016105046A1 (de) 2016-03-18 2017-09-21 Guido Schulte Plattenförmiges Bauelement

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DE361721C (de) * 1922-10-18 John Kershaw Shaw Aus mehreren Lagen miteinander verfilzter Fasern hergestelltes Brett
AT195079B (de) * 1955-08-05 1958-01-25 Hutter & Schrantz Ag Siebwaren Bauplatte, insbesondere Hohlplatte aus synthetischem Schaumstoff
CH425153A (de) * 1964-08-13 1966-11-30 Wiegand Othmar Wandelement
DE1966358U (de) * 1967-05-09 1967-08-17 Prix Leichtbauplattenwerk Wieh Doppelschaliges wandelement aus holzwolleleichtbeton fuer unbelastete zwischenwaende.
DE2117918A1 (de) * 1970-04-17 1972-06-08 Technisch Ontwikkelingsbureau Van Elten N.V., Voorthuizen (Niederlande) Leichtbaupplatte und Verfahren zu ihrer Herstellung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005014577A1 (de) * 2005-03-31 2006-10-12 Heraklith Ag Verbundelement

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AR229968A1 (es) 1984-01-31
ATE5986T1 (de) 1984-02-15
DE3005707A1 (de) 1981-08-20
EP0034345A1 (fr) 1981-08-26
DE3161993D1 (en) 1984-03-01

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