EP1783294A1 - Building board - Google Patents

Building board Download PDF

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Publication number
EP1783294A1
EP1783294A1 EP06022569A EP06022569A EP1783294A1 EP 1783294 A1 EP1783294 A1 EP 1783294A1 EP 06022569 A EP06022569 A EP 06022569A EP 06022569 A EP06022569 A EP 06022569A EP 1783294 A1 EP1783294 A1 EP 1783294A1
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EP
European Patent Office
Prior art keywords
glass fiber
fibers
building board
fiber mat
glass
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.)
Granted
Application number
EP06022569A
Other languages
German (de)
French (fr)
Other versions
EP1783294B1 (en
Inventor
Thomas Dr.-Ing. Koslowski
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.)
Knauf USG Systems GmbH and Co KG
Original Assignee
Knauf USG Systems GmbH and Co KG
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Knauf USG Systems GmbH and Co KG filed Critical Knauf USG Systems GmbH and Co KG
Priority to PL06022569T priority Critical patent/PL1783294T3/en
Publication of EP1783294A1 publication Critical patent/EP1783294A1/en
Application granted granted Critical
Publication of EP1783294B1 publication Critical patent/EP1783294B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E04C2/04—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 concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/043—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 concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of plaster
    • 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
    • E04C2/04—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 concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/06—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 concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced

Definitions

  • the invention relates to a building board with a plate-shaped matrix of a hardened inorganic binder mixture.
  • the matrix of corresponding building boards usually consists of a hardened cement-based binder mixture.
  • a hardened cement-based binder mixture In order to increase the strength of these structural panels or to make the structural panels on their surface in a special way optically, it is known to provide the building panels on their two main surfaces with a glass fiber fabric.
  • the contact between the set binder mixture and the glass fiber fabric is often insufficient, which apparently also lies in particular on the smooth surface of the glass fibers, on which the binder does not find sufficient support.
  • individual glass fibers or entire sections of the glass fiber fabric are loose in the core of the building board. This is disadvantageous in particular in the edge region of the building board, since the boards are subjected to increased risk of damage here, in particular during handling of the board. In extreme cases, this can lead to the plate not only being damaged in the edge area, but also entire sections of the panel to break off in the edge area.
  • a particularly low-viscosity binder in the edge region often finds insufficient support through the glass fiber fabric, so that the binder penetrates between the mesh of the glass fiber fabric to the outside.
  • the invention has for its object to provide a building board of the type mentioned above, which is better protected in the edge area against damage. Furthermore, the invention has for its object to prevent swelling of not yet set binder in the edge region.
  • the invention is based on the recognition that the cohesion between the binder matrix of the building board and the glass fibers is improved when further fibers (secondary fibers) are arranged in the transition region between glass fibers and binder.
  • the secondary fibers virtually create a transition region between the binder mixture and the glass fiber mat, wherein the transition region has a mixture of binder and secondary fibers.
  • a binder in the edge region can be prevented from leaking between the openings of the glass fiber mat by the secondary fibers.
  • the region of the edges comprises the surface of the edges themselves. However, it may also comprise the regions of the two main surfaces of the construction plate adjacent thereto. Accordingly, the glass fiber mats can also have secondary fibers in the edge region of the building board. In this case, the arrangement of the secondary fibers on the glass fiber mat, when viewed on the main surface of the building board, is similar to a frame surrounding the glass fiber mat in its edge area. Accordingly, the building board in its edge region on a layer of secondary fibers. According to the application, the "edge region" of the glass fiber mat or the building board is understood to be the region of the glass fiber mat or building board which is adjacent to the edge of the building board.
  • edges can be covered at least in sections, but preferably completely, with a glass fiber mat coated with secondary fibers.
  • edges are completely covered with a glass fiber mat, but the glass fiber mat is here only partially in contact with secondary fibers. Preferably, however, the glass fiber mat is in contact with secondary fibers in the area of the edges.
  • glass fiber mats for example, can initially be covered with secondary fibers in the areas which will later be arranged in the region of the edges of the building board. Subsequently, a (not hardened) binder mixture is applied to the correspondingly treated with secondary fibers fiberglass mat, as described in detail below. In the edge area of the Glass fiber mat protruding edge portions are then folded over the narrow sides of the binder mixture, so that the narrow sides of the binder mixture - and thus the later formed edges of the building board - are covered by the glass fiber mat.
  • the glass fiber mat can be in contact with secondary fibers in the region of any number of edges of the building board.
  • the glass fiber mat may preferably be in contact with secondary fibers in the region of four or in the region of two opposite edges of the building board.
  • the glass fiber mats can also be in contact with secondary fibers in the areas of the main surfaces of the building board, which adjoin the edges - and the areas of the glass fiber mat which are in contact here with secondary fibers thus form a frame-like edge area of the glass fiber mat.
  • the width of this edge region of the glass fiber mat, which is in contact with secondary fibers is arbitrary.
  • the edge region has only a width of a few centimeters, for example, a width of up to 8 cm, or even only up to 6 cm or up to 4 cm.
  • the edge region of the glass fiber mat which is in contact with secondary fibers preferably has a uniform width on all sides; However, it may also be provided to change the width. For example, provision may be made for the width of the edge region in areas which may be subject to increased damage (for example in the region of the corners or in the region of perforations), greater than in other areas.
  • the width of the edge region in contact with secondary fibers can be, for example, only 0.5 to 10%, that is, for example, only 1 to 10% or 2 to 8% of the total width of the glass fiber mat or the building board.
  • a significant advantage of the building board according to the application is, in particular, also that a considerable improvement in its edge strength is achieved by this only small change in a building board according to the prior art.
  • the predominant surface sections of the building board practically the entire inner area of the glass fiber mat or the building board, does not need to be treated separately, that is to say covered with secondary fibers.
  • less than 10% of the surface of the glass fiber mat can be in contact with secondary fibers or correspondingly have less than 10% of one side of the building board secondary fibers, ie in each case for example less than 5% or even less than 3%.
  • the secondary fibers can be arranged on all sides around the fibers of the glass fiber mat.
  • the secondary fibers are thus arranged in the region of the edges of the building board over the entire surface on both sides of the glass fiber mat. This ensures a particularly firm hold of the glass fiber mat in the binder matrix.
  • the secondary fibers are arranged only on one side of the glass fiber mat or, for example, only partially on one or both sides of the glass fiber mat in the region of Edges of the building board are arranged.
  • the secondary fibers are in contact with the glass fiber mat only on the side of the glass fiber mat facing the core of the building board, so that the glass fiber mat is particularly firmly in contact with the binder matrix of the building board on this side; The hold of the glass fiber mat is thus already so high that the glass fiber mat can not or only partially with secondary fibers in contact on its opposite, outward-facing side.
  • the glass fibers of the glass fiber mat are in contact with the secondary fibers and are preferably glued to the secondary fibers.
  • the secondary fibers can be in direct contact with the glass fibers or else indirectly, for example via further secondary fibers.
  • the secondary fibers can serve as glass fibers of the fiberglass mat as a "root" through which they are firmly bonded to the binder mixture.
  • the glass fibers need not be completely covered with secondary fibers, so that the surface of the glass fibers would be completely covered by secondary fibers;
  • the Secondary fibers are arranged on all sides, so in all spatial directions around the fibers of the glass fiber mat around.
  • the secondary fibers are preferably arranged over the entire region of the edges of the building board on the glass fiber mat;
  • the glass fiber mat thus has no continuous areas in the region of the edges of the building board - for example of more than a few mm 2 - on which no secondary fibers are present.
  • the majority of the secondary fibers can be arranged on the, the two main surfaces of the glass fiber mat facing sides of the glass fibers and only a smaller part of the, the mesh openings of the glass fiber mat facing sides of the glass fibers.
  • the secondary fibers may be bonded to the glass fibers by means of an adhesive.
  • the secondary fibers preferably adhere directly to the glass fibers, for example, by the secondary fibers are formed from a melt-blown plastic, which is inflated onto the glass fiber mat, whereby the secondary fibers form in situ on the glass fiber mat and adhere to it.
  • the secondary fibers are preferably present in the form of random fibers, that is to say as randomly arranged fibers which surround the glass fiber mat on all sides.
  • the secondary fibers may also be aligned, for example in the form of fiber mats in which the glass fiber mat is embedded.
  • the secondary fibers have a fiber diameter which is less than the diameter of the glass fibers.
  • the glass fibers may have a diameter in the range of 0.1 to 1.0 mm
  • the secondary fibers preferably have a diameter less than 0.1 mm, for example in the range between 0.01 mm and 0.1 mm.
  • plastic fibers are used for the secondary fibers.
  • an arbitrary plastic can be selected for the secondary fibers, preferably a plastic from which melt-blown synthetic fibers can be created.
  • the plastic fibers may consist of thermoplastic elastomers, polyamides, polystyrenes, polyacrylates, polyamides or mixtures thereof.
  • the length of the secondary fibers can be in the range between 0.1 to 5 mm, that is, for example, in the range between 0.3 and 3 mm.
  • the secondary fibers are in the form of glass fibers.
  • Glass fibers have the advantage of lower flammability compared to plastic fibers.
  • Secondary glass fibers can be connected, for example, via an adhesive to the glass fibers of the glass fiber mat.
  • the secondary fibers can also be present as a mixture of glass and plastic fibers, in which case the secondary glass fibers can be connected via the plastic fibers with the glass fibers of the glass fiber mat.
  • formed glass fiber mats can - in addition to the edge region of the building board - be arranged in the region of one, but preferably in the region of both main surfaces of the building board.
  • the "major surfaces" of the building board are the large surfaces or visible surfaces of the building board.
  • the fact that the glass fiber mats are arranged "in the area" of the main surfaces or the edges of the building board means that the glass fiber mats either directly on the surface of the binder matrix of the building board are arranged or at a shallow depth - a few millimeters - are embedded in the matrix of the building board in the region of the main surfaces or the edges.
  • the glass fiber mats may be in the form of glass fiber fabrics or glass fiber nets, for example.
  • the glass fibers can either be loosely woven together or glued together at their crossing points.
  • Loose interwoven glass fibers have the advantage that can be dispensed with an additional use of adhesive, which means a significant cost savings and reduces the flammability of the building board, as for the bonding of glass fibers regularly organic adhesives are used.
  • the glass fiber mat can also be formed from glued together at their crossing points glass fibers.
  • organic or inorganic adhesives may be used, for example, waterglass-based adhesives having the advantage of incombustibility.
  • the glass fibers of the glass fiber mat preferably have a diameter in the range of 0.1 to 1.0 mm, that is, for example, in the range of 0.3 to 0.7 mm.
  • the basis weight of the glass fiber mat can be, for example, in the range of 80 to 160 g / m 2 , that is, for example, in the range of 100 to 140 g / m 2 .
  • a mesh density of 4 to 40 meshes / cm 2 has proved to be advantageous, that is, for example, a mesh density in the range of 8 to 20 meshes / cm 2 .
  • the glass fibers of the glass fiber mat with plastic.
  • This can prevent chemical attack of the binder on the glass fibers.
  • this plastic and the secondary fibers of the same material The basis weight of the glass fiber mat increases by the weight of the secondary fibers in contact with the glass fiber mat.
  • the secondary fibers, the basis weight of the glass fiber mat for example, 2 to 100 g / m 2 , so for example by 2 to 80 g / m 2 , 4 to 60 g / m 2 , 8 to 40 g / m 2 , 8 to 20 g / m 2 or 10 to 20 g / m 2 increase.
  • the matrix of the building board has a multilayer structure.
  • an inner core of a binder mixture containing a lightweight aggregate may be covered outwardly by binder slurry which provides the structural panel with a visually pleasing surface.
  • the glass fiber mats can be embedded in these binder slips, which cover the building board on all sides.
  • the aforementioned binder slip may preferably be a cement-based binder slip based, for example, on a mixture of cement flour, limestone meal and water.
  • the glass fiber mats can be embedded in any binder slip, but preferably a cement slip.
  • the core of the binder matrix of the building board which may for example also be arranged between slip layers as described above, can be made of any inorganic binder mixture, preferably a hydraulically setting binder mixture, for example a cement-based binder mixture or anhydrite-based binder mixture.
  • the binder mixture may contain one or more of the following lightweight aggregates: expanded clay, expandable shale, expanded perlite, expanded vermiculite, expanded glass, or pumice.
  • the binder mixture may contain any further additives, additives or additives.
  • pozzolanic substances such as fly ash can be used as additives.
  • a cement-based binder mixture may, for example, have a cement content in the range between 20 and 40% by mass, that is to say, for example, in the range between 25 and 35% by mass.
  • the proportion of lightweight aggregates in the binder mixture can be, for example, in the range from 40 to 65% by mass, that is to say, for example, in the range from 45 to 60% by mass.
  • Further binder components, for example pozzolanic reacting constituents may for example be present in the range from 10 to 20% by mass. The aforementioned quantities are based on the dry binder mixture.
  • the dry binder mixture is then turned on with water to obtain a workable binder mixture.
  • a binder slip based on cement for example, 15 to 35, so for example, 20 to 30 mass% cement flour included.
  • the proportion of limestone powder in the slurry can be, for example, 65 to 85% by mass, that is, for example, 70 to 80% by mass.
  • the above-mentioned measures in turn relate to the dry components of the suspension.
  • the dry ingredients of the binder slurry are then also made with water to obtain a binder slip.
  • the building boards according to the application can have any shape and size.
  • the structural panels may, for example, have substantially rectangular main surfaces with a length of, for example, 1200 mm, 1250 mm, 2400 mm or 2500 mm.
  • the width of the building boards for example, 900 mm and the thickness, for example, 12.5 mm.
  • the structural panels may for example have a weight in the range of 10 to 20 kg / m 2 , that is, for example, a weight of about 15 kg / m 2 .
  • the building boards according to the application can, for example, belong to building material class A1 (non-flammable) according to DIN 4102.
  • An exemplary embodiment of a building board according to the application can, for example, be designed as follows:
  • the rectangular building board has a width of 900 mm, a length of 1200 mm and a thickness of 12.5 mm.
  • the weight of the plate is 15 kg / m 2 .
  • the building board has two glass fiber mats embedded in a cement slurry that cover the building board in the area of its two main surfaces and in the area of the four edges. Between the cement slurry layers, in each of which embedded one of the glass fiber mats is a set cement-based inorganic binder mixture.
  • the glass fiber mat has a basis weight of 120 g / m 2 and a mesh count of 12 mesh / cm 2 .
  • the glass fibers are loosely woven into a glass fiber fabric.
  • the diameter of the glass fibers is 0.5 mm.
  • the glass fiber mats are in contact with secondary fibers in the region of the edges of the building board, which are arranged in a confused arrangement around the glass fibers.
  • the secondary fibers consist of meltblown polyester fibers formed in situ on the fiberglass mat.
  • the basis weight of the secondary fibers is 80 g / m 2 .
  • the diameter of the secondary fibers is about 0.05 mm.
  • a building board according to the application can be produced, for example, according to the following method:
  • a first fiberglass mat is brought into contact with secondary fibers in the areas which will later be located in the area of the edges of the building board. Subsequently, the glass fiber mat is pulled through a binder slurry and placed on a substrate. On the appropriately treated, first glass fiber mat, a, a lightweight aggregate-containing binder mixture is abandoned. The glass fiber mat is folded around the binder mixture with overhanging portions comprising the secondary fibers. On the binder mixture, a second, drawn through a binder slurry glass fiber mat is then placed. The corresponding structure is compressed to the desired plate thickness. Subsequently, the binder mixture is allowed to harden. The hardened binder mixture can then be trimmed to the desired plate format.
  • the construction board according to the application can be supplied to any application, for example for insulation purposes, as a wall or pipe covering or for decorative purposes.
  • Figure 1 shows a section of a glass fiber fabric 1, which consists of loosely interwoven glass fibers 3 and 5.
  • FIG. 2 shows the glass fiber fabric 1 according to FIG. 1 in a side view.
  • FIG. 3 shows a plan view of a glass fiber fabric cut-out 4 according to FIG. 1, which is in contact with synthetic fibers 7 on all sides.
  • the plastic fibers 7 consist of a meltblown plastic which has been inflated directly onto the glass fiber fabric 4, so that the plastic fibers 7 have been formed in situ on the glass fiber fabric 4 and adhere to it.
  • the glass fiber fabric 4 is covered on all sides with plastic fibers 7 in the region of the edges of the building board (see FIG. 7). In this case, both the glass fibers 3 and 5, as well as the intervening meshes of the glass fiber fabric 4 are covered.
  • the plastic fibers 7 are, as shown in FIG. 3, directly or indirectly - via further plastic fibers 7 - in contact with the glass fibers 3, 5.
  • FIG. 4 which shows a side view of a glass fiber fabric according to FIG. 3 in the edge region of a building board, it can be clearly seen that the glass fiber fabric 4 is completely embedded in the plastic fibers 7.
  • FIG. 4 shows a comparatively thick layer of plastic fibers 7 arranged on both sides of the glass fiber fabric 4 in relation to the thickness of the glass fiber fabric.
  • the layers of plastic fibers on average can also have only a relatively small thickness, for example less than 2 mm or even less than 1 mm.
  • FIG. 5 shows a plan view of a complete glass fiber fabric 21, which is in contact with secondary fibers 7 in its edge region 20, which is to be arranged later in the region of the edges of the building board.
  • the edge region 20 is arranged like a frame around the glass fiber fabric 21 around and has a width b of about 6 cm. As shown in FIGS. 3 and 4, the edge region 20 of the glass fiber mat 21 is covered on all sides with secondary fibers 7. The inner region 24 of the glass fiber fabric is free of secondary fibers.
  • FIG. 6 shows a plan view of a main surface 11 of a building board 9 which has a glass fiber fabric 21 according to FIG. 5 in the region of the main surface 11 and in the region of the four edges 12.1, 12.2, 12.3, 12.4. Since the glass fiber fabric 21 is embedded in a cement slurry, the surface 11 is almost flat with only slight unevenness.
  • FIG. 7 shows a side sectional view through the structural panel 9 according to FIG. 6 along the section line A-A.
  • the glass fiber fabric 21 is in contact with secondary fibers 7.
  • These secondary fibers 7 are still in narrow areas 23 on the main surfaces of the building board, which adjoin the edges 12.1, 12.3, arranged on the glass fiber mat.
  • FIG. 8 shows an enlarged side sectional view through the building board 9 according to FIG. 6 in the region of its side edge 12.
  • the glass fiber fabric 21 is located covering the area of the side edge 12. 1 and a short distance up to the area of the second (here upper) main surface 11 protrudes.
  • the glass fiber fabric is in the region of the edge 12.1 of the building board 9 in contact with secondary fibers 7; the secondary fibers 7 are also arranged in the regions 23 of the glass fiber mat 21, in the region of the main surfaces 11, 13 at adjoin the edge 12.1.
  • a glass fiber fabric 22 is arranged, which is not in contact with secondary fibers.
  • the matrix of the building board 9 has a core 15 of a hardened inorganic binder mixture.
  • the glass fiber mats 21, 22 are embedded in cement slurry 19, which covers the core 15 of the building board 9 on all sides.
  • the binder core 15 is made of a cement, lightweight aggregates (indicated by the irregular spots) and fly ash containing binder mixture. Its thickness is about 7.5 mm.
  • the cement slurry 19 is made of a cement flour and limestone flour-containing binder mixture and has a thickness of about 2.5 mm.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Finishing Walls (AREA)
  • Nonwoven Fabrics (AREA)
  • Panels For Use In Building Construction (AREA)
  • Building Environments (AREA)

Abstract

Construction board (9) has a disc shaped matrix tied from an binding agent mixture, which has glass fiber mat in the area of one of its both main surfaces (11) as well as in the area of one of its edges (12.1-12.4). The glass fiber mat stands in contact in the area of the edges of the building board with recycled fibers.

Description

Die Erfindung betrifft eine Bauplatte mit einer plattenförmigen Matrix aus einer abgebundenen anorganischen Bindemittelmischung.The invention relates to a building board with a plate-shaped matrix of a hardened inorganic binder mixture.

Die Matrix entsprechender Bauplatten besteht üblicherweise aus einer abgebundenen Bindemittelmischung auf Zementbasis. Um die Festigkeit dieser Bauplatten zu erhöhen oder um die Bauplatten an ihrer Oberfläche in besonderer Weise optisch zu gestalten, ist bekannt, die Bauplatten an ihren zwei Hauptoberflächen mit einem Glasfasergewebe zu versehen.The matrix of corresponding building boards usually consists of a hardened cement-based binder mixture. In order to increase the strength of these structural panels or to make the structural panels on their surface in a special way optically, it is known to provide the building panels on their two main surfaces with a glass fiber fabric.

Bei der Herstellung der Bauplatten werden dazu Glasfasergewebe an den beiden Hauptoberflächen der Bauplatte in die noch nicht abgebundene Bindemittelmischung eingebracht. Anschließend lässt man die Bindemittelmischung abbinden, so dass die Glasfasergewebe in die abgebundene Bindemittelmischung eingebunden sind.In the manufacture of structural panels to fiberglass fabric are introduced to the two main surfaces of the building board in the not yet set binder mixture. Subsequently, the binder mixture is allowed to set, so that the glass fiber fabrics are integrated into the set binder mixture.

Der Kontakt zwischen der abgebundenen Bindemittelmischung und dem Glasfasergewebe ist häufig unzureichend, was offenbar insbesondere auch an der glatten Oberfläche der Glasfasern, an der das Bindemittel keinen ausreichenden Halt findet, liegt. Im Extremfall liegen einzelne Glasfasern oder ganze Abschnitte des Glasfasergewebes lose im Kern der Bauplatte ein. Insbesondere im Kantenbereich der Bauplatte ist dies nachteilig, da die Platten hier, insbesondere beim Handling der Platte, verstärkt der Gefahr einer Beschädigung ausgesetzt sind. Im Extremfall kann dies dazu führen, dass die Platte im Kantenbereich nicht nur beschädigt wird, sondern dass ganze Abschnitte der Platte im Kantenbereich abbrechen. Ferner findet ein, insbesondere niedrigviskoses Bindemittel im Kantenbereich häufig nur unzureichenden Halt durch das Glasfasergewebe, so dass das Bindemittel zwischen den Maschen des Glasfasergewebes nach außen dringt.The contact between the set binder mixture and the glass fiber fabric is often insufficient, which apparently also lies in particular on the smooth surface of the glass fibers, on which the binder does not find sufficient support. In extreme cases, individual glass fibers or entire sections of the glass fiber fabric are loose in the core of the building board. This is disadvantageous in particular in the edge region of the building board, since the boards are subjected to increased risk of damage here, in particular during handling of the board. In extreme cases, this can lead to the plate not only being damaged in the edge area, but also entire sections of the panel to break off in the edge area. Furthermore, a particularly low-viscosity binder in the edge region often finds insufficient support through the glass fiber fabric, so that the binder penetrates between the mesh of the glass fiber fabric to the outside.

Der Erfindung liegt die Aufgabe zugrunde, eine Bauplatte der eingangs genannten Art zur Verfügung zu stellen, die sie im Kantenbereich besser gegen Beschädigungen geschützt ist. Ferner liegt der Erfindung die Aufgabe zugrunde, ein Herausquellen von noch nicht abgebundenem Bindemittel im Kantenbereich zu verhindern.The invention has for its object to provide a building board of the type mentioned above, which is better protected in the edge area against damage. Furthermore, the invention has for its object to prevent swelling of not yet set binder in the edge region.

Zur Lösung dieser Aufgabe wird anmeldungsgemäß zur Verfügung gestellt eine Bauplatte mit

  • einer plattenförmigen Matrix aus einer abgebundenen anorganischen Bindemittelmischung, die
  • im Bereich wenigstens einer ihrer beiden Hauptoberflächen sowie im Bereich wenigstens einer ihrer Kanten eine Glasfasermatte aufweist, wobei
  • die Glasfasermatte im Bereich der Kanten der Bauplatte mit Sekundärfasern in Kontakt steht.
To solve this problem is provided according to the application a building board with
  • a plate-shaped matrix of a set inorganic binder mixture, the
  • In the region of at least one of its two main surfaces and in the region of at least one of its edges has a glass fiber mat, wherein
  • the glass fiber mat is in contact with secondary fibers in the area of the edges of the building board.

Die Erfindung beruht auf der Erkenntnis, dass der Zusammenhalt zwischen der Bindemittelmatrix der Bauplatte und den Glasfasern dann verbessert ist, wenn im Übergangsbereich zwischen Glasfasern und Bindemittel weitere Fasern (Sekundärfasern) angeordnet sind. Durch die Sekundärfasern ist quasi ein Übergangsbereich zwischen der Bindemittelmischung und der Glasfasermatte geschaffen, wobei der Übergangsbereich eine Mischung aus Bindemittel und Sekundärfasern aufweist.The invention is based on the recognition that the cohesion between the binder matrix of the building board and the glass fibers is improved when further fibers (secondary fibers) are arranged in the transition region between glass fibers and binder. The secondary fibers virtually create a transition region between the binder mixture and the glass fiber mat, wherein the transition region has a mixture of binder and secondary fibers.

Weiter wurde erfindungsgemäß erkannt, dass eine Bauplatte der gattungsgemäßen Art dann wirkungsvoll gegen eine Beschädigung ihrer Kanten geschützt ist, wenn die Glasfasermatte im Bereich ihrer Kanten mit Sekundärfasern in Kontakt steht.It was further recognized according to the invention that a building board of the generic type is then effectively protected against damage to its edges when the glass fiber mat is in contact with secondary fibers in the region of its edges.

Ferner wurde festgesellt, dass ein Bindemittel im Kantenbereich durch die Sekundärfasern an einem Herausquellen zwischen den Öffnungen der Glasfasermatte hindurch gehindert werden kann.Further, it has been found that a binder in the edge region can be prevented from leaking between the openings of the glass fiber mat by the secondary fibers.

Unter den "Kanten" der Bauplatte werden, wie üblich, die Schmalseiten der Bauplatte verstanden, also die, die beiden Hauptoberflächen der Bauplatte verbindenden Flächen der Bauplatte.Under the "edges" of the building board, as usual, understood the narrow sides of the building board, ie, the two main surfaces of the building board connecting surfaces of the building board.

Der Bereich der Kanten umfasst die Fläche der Kanten selbst. Er kann jedoch auch die daran angrenzenden Bereiche der beiden Hauptoberflächen der Bauplatte umfassen. Die Glasfasermatten können demnach auch im Randbereich der Bauplatte Sekundärfasern aufweisen. In diesem Fall gleicht die Anordnung der Sekundärfasern auf der Glasfasermatte, bei einer Ansicht auf die Hauptoberfläche der Bauplatte, quasi einem Rahmen, der die Glasfasermatte in ihrem Randbereich umgibt. Entsprechend weist auch die Bauplatte in ihrem Randbereich eine Lage aus Sekundärfasern auf. Anmeldungsgemäß wird unter dem "Randbereich" der Glasfasermatte beziehungsweise der Bauplatte der Bereich der Glasfasermatte beziehungsweise Bauplatte verstanden, der benachbart ist zur Kante der Bauplatte.The region of the edges comprises the surface of the edges themselves. However, it may also comprise the regions of the two main surfaces of the construction plate adjacent thereto. Accordingly, the glass fiber mats can also have secondary fibers in the edge region of the building board. In this case, the arrangement of the secondary fibers on the glass fiber mat, when viewed on the main surface of the building board, is similar to a frame surrounding the glass fiber mat in its edge area. Accordingly, the building board in its edge region on a layer of secondary fibers. According to the application, the "edge region" of the glass fiber mat or the building board is understood to be the region of the glass fiber mat or building board which is adjacent to the edge of the building board.

Die Kanten können zumindest abschnittsweise, bevorzugt aber vollständig mit einer mit Sekundärfasern belegten Glasfasermatte bedeckt sein.The edges can be covered at least in sections, but preferably completely, with a glass fiber mat coated with secondary fibers.

Es kann auch vorgesehen sein, dass die Kanten vollständig mit einer Glasfasermatte bedeckt sind, die Glasfasermatte hier aber nur abschnittsweise mir Sekundärfasern in Kontakt steht. Bevorzugt steht die Glasfasermatte im Bereich der Kanten aber vollflächig mit Sekundärfasern in Kontakt.It can also be provided that the edges are completely covered with a glass fiber mat, but the glass fiber mat is here only partially in contact with secondary fibers. Preferably, however, the glass fiber mat is in contact with secondary fibers in the area of the edges.

Zur Fertigung einer anmeldungsgemäßen Bauplatte können beispielsweise Glasfasermatten zunächst in den Bereichen, die später im Bereich der Kanten der Bauplatte angeordnet sein werden, mit Sekundärfasern belegt werden. Anschließend wird auf die entsprechend mit Sekundärfasern belegte Glasfasermatte, wie im Detail weiter unten beschrieben, eine (nicht abgebundene) Bindemittelmischung aufgebracht. Im Randbereich der Glasfasermatte überstehende Randabschnitte werden dann über die Schmalseiten der Bindemittelmischung umgeklappt, so dass die Schmalseiten der Bindmittelmischung - und damit die später hieraus gebildeten Kanten der Bauplatte - von der Glasfasermatte bedeckt sind.To produce a building board according to the application, glass fiber mats, for example, can initially be covered with secondary fibers in the areas which will later be arranged in the region of the edges of the building board. Subsequently, a (not hardened) binder mixture is applied to the correspondingly treated with secondary fibers fiberglass mat, as described in detail below. In the edge area of the Glass fiber mat protruding edge portions are then folded over the narrow sides of the binder mixture, so that the narrow sides of the binder mixture - and thus the later formed edges of the building board - are covered by the glass fiber mat.

Grundsätzlich kann die Glasfasermatte im Bereich einer beliebigen Anzahl von Kanten der Bauplatte mit Sekundärfasern in Kontakt stehen. Im Fall einer rechteckigen Bauplatte kann die Glasfasermatte bevorzugt im Bereich von vier oder im Bereich von zwei gegenüberliegenden Kanten der Bauplatte mit Sekundärfasern in Kontakt stehen.In principle, the glass fiber mat can be in contact with secondary fibers in the region of any number of edges of the building board. In the case of a rectangular building board, the glass fiber mat may preferably be in contact with secondary fibers in the region of four or in the region of two opposite edges of the building board.

Wie oben bereits beschrieben, können die Glasfasermatten auch in den Bereichen der Hauptoberflächen der Bauplatte mit Sekundärfasern in Kontakt stehen, die an die Kanten angrenzen - und die hier mit Sekundärfasern in Kontakt stehenden Bereiche der Glasfasermatte damit einen rahmenartigen Randbereich der Glasfasermatte bilden.As already described above, the glass fiber mats can also be in contact with secondary fibers in the areas of the main surfaces of the building board, which adjoin the edges - and the areas of the glass fiber mat which are in contact here with secondary fibers thus form a frame-like edge area of the glass fiber mat.

Die Breite dieses Randbereiches der Glasfasermatte, der mit Sekundärfasern in Kontakt steht, ist beliebig. Bevorzugt hat der Randbereich nur eine Breite von wenigen Zentimetern, beispielsweise eine Breite von bis zum 8 cm, oder auch nur von bis zu 6 cm oder bis zu 4 cm. Der mit Sekundärfasern in Kontakt stehende Randbereich der Glasfasermatte weist bevorzugt auf allen Seiten eine gleichbleibende Breite auf; es kann jedoch auch vorgesehen sein, die Breite zu verändern. Beispielsweise kann vorgesehen sein, die Breite des Randbereiches in solchen Bereichen, die verstärkte einer Beschädigung ausgesetzt sein können (beispielsweise im Bereich der Ecken oder im Bereich von Durchbrechungen), größer vorzusehen als in anderen Bereichen. Die Breite des mit Sekundärfasern in Kontakt stehenden Randbereiches kann beispielsweise nur 0,5 bis 10 %, also beispielsweise auch nur 1 bis 10 % oder 2 bis 8 % der Gesamtbreite der Glasfasermatte beziehungsweise der Bauplatte betragen.The width of this edge region of the glass fiber mat, which is in contact with secondary fibers, is arbitrary. Preferably, the edge region has only a width of a few centimeters, for example, a width of up to 8 cm, or even only up to 6 cm or up to 4 cm. The edge region of the glass fiber mat which is in contact with secondary fibers preferably has a uniform width on all sides; However, it may also be provided to change the width. For example, provision may be made for the width of the edge region in areas which may be subject to increased damage (for example in the region of the corners or in the region of perforations), greater than in other areas. The width of the edge region in contact with secondary fibers can be, for example, only 0.5 to 10%, that is, for example, only 1 to 10% or 2 to 8% of the total width of the glass fiber mat or the building board.

Ein wesentlicher Vorteil der anmeldungsgemäßen Bauplatte liegt insbesondere auch darin, dass durch diese nur kleine Veränderung einer Bauplatte nach dem Stand der Technik eine erhebliche Verbesserung ihrer Kantenfestigkeit erreicht wird. Die überwiegenden Flächenabschnitte der Bauplatte, praktisch der gesamt innenliegend Bereich der Glasfasermatte beziehungsweise der Bauplatte, muss nicht gesondert behandelt, also mit Sekundärfasern belegt werden.A significant advantage of the building board according to the application is, in particular, also that a considerable improvement in its edge strength is achieved by this only small change in a building board according to the prior art. The predominant surface sections of the building board, practically the entire inner area of the glass fiber mat or the building board, does not need to be treated separately, that is to say covered with secondary fibers.

Im Ergebnis können beispielsweise unter 10 % der Fläche der Glasfasermatte mit Sekundärfasern in Kontakt stehen beziehungsweise entsprechend unter 10 % einer Seite der Bauplatte Sekundärfasern aufweisen, also jeweils beispielsweise auch unter 5 % oder sogar nur unter 3 %.As a result, for example, less than 10% of the surface of the glass fiber mat can be in contact with secondary fibers or correspondingly have less than 10% of one side of the building board secondary fibers, ie in each case for example less than 5% or even less than 3%.

Besonders bevorzugt können die Sekundärfasern allseitig um die Fasern der Glasfasermatte herum angeordnet sein. Bei dieser Ausführungsform sind die Sekundärfasern also im Bereich der Kanten der Bauplatte vollflächig auf beiden Seiten der Glasfasermatte angeordnet. Hierdurch ist ein besonders fester Halt der Glasfasermatte in der Bindemittelmatrix gewährleistet.Particularly preferably, the secondary fibers can be arranged on all sides around the fibers of the glass fiber mat. In this embodiment, the secondary fibers are thus arranged in the region of the edges of the building board over the entire surface on both sides of the glass fiber mat. This ensures a particularly firm hold of the glass fiber mat in the binder matrix.

Es kann jedoch auch vorgesehen sein, dass die Sekundärfasern nur auf einer Seite der Glasfasermatte angeordnet sind oder beispielsweise nur abschnittsweise auf einer oder beiden Seiten der Glasfasermatte im Bereich der Kanten der Bauplatte angeordnet sind. Beispielsweise kann insbesondere vorgesehen sein, dass die Sekundärfasern nur auf der dem Kern der Bauplatte zugewandten Seite der Glasfasermatte im Kantenbereich der Bauplatte in Kontakt mit der Glasfasermatte stehen, so dass die Glasfasermatte auf dieser Seite besonders fest mit der Bindemittelmatrix der Bauplatte in Kontakt steht; der Halt der Glasfasermatte ist dadurch bereits so hoch, dass die Glasfasermatte gleichzeitig auf ihrer gegenüberliegenden, nach außen weisenden Seite nicht oder nur teilweise mit Sekundärfasern in Kontakt stehen kann. Vorteilhaft bei dieser Ausführungsform ist zum einen, dass hierdurch Sekundärfasern eingespart werden können; zum anderen ist vorteilhaft, dass die Bauplatte aufgrund der geringen oder nicht vorhandenen Anzahl an Sekundärfasern auf der Außenseite der Glasfasermatte eine geringere Brennbarkeit aufweist, soweit Sekundärfasern aus einem Kunststoffmaterial zum Einsatz kommen.However, it can also be provided that the secondary fibers are arranged only on one side of the glass fiber mat or, for example, only partially on one or both sides of the glass fiber mat in the region of Edges of the building board are arranged. For example, it can be provided, in particular, that the secondary fibers are in contact with the glass fiber mat only on the side of the glass fiber mat facing the core of the building board, so that the glass fiber mat is particularly firmly in contact with the binder matrix of the building board on this side; The hold of the glass fiber mat is thus already so high that the glass fiber mat can not or only partially with secondary fibers in contact on its opposite, outward-facing side. On the one hand, it is advantageous in this embodiment that secondary fibers can thereby be saved; on the other hand, it is advantageous that the building board due to the small or non-existent number of secondary fibers on the outside of the glass fiber mat has a lower flammability, as far as secondary fibers are made of a plastic material used.

Die Glasfasern der Glasfasermatte stehen in Kontakt mit den Sekundärfasern und sind bevorzugt mit den Sekundärfasern verklebt. Die Sekundärfasern können unmittelbar in Kontakt mit den Glasfasern stehen oder auch mittelbar, also beispielsweise über weitere Sekundärfasern.The glass fibers of the glass fiber mat are in contact with the secondary fibers and are preferably glued to the secondary fibers. The secondary fibers can be in direct contact with the glass fibers or else indirectly, for example via further secondary fibers.

Die Sekundärfasern können den Glasfasern der Glasfasermatte als "Wurzel" dienen, über die sie fest mit der Bindemittelmischung verbunden sind.The secondary fibers can serve as glass fibers of the fiberglass mat as a "root" through which they are firmly bonded to the binder mixture.

Soweit die Sekundärfasern allseitig um die Glasfasern der Glasfasermatte herum angeordnet sind, brauchen die Glasfasern nicht vollflächig mit Sekundärfasern bedeckt zu sein, so dass die Oberfläche der Glasfasern vollständig von Sekundärfasern bedeckt wäre; entscheidend ist allein, dass die Sekundärfasern allseitig, also in allen Raumrichtungen um die Fasern der Glasfasermatte herum angeordnet sind. Ferner sind die Sekundärfasern bevorzugt über den gesamten Bereich der Kanten der Bauplatte hinweg an der Glasfasermatte angeordnet; die Glasfasermatte weist im Bereich der Kanten der Bauplatte mithin keine durchgehenden Bereiche - beispielsweise von mehr als wenigen mm2 - auf, an denen keine Sekundärfasern vorhanden sind. Der Großteil der Sekundärfasern kann dabei auf den, den beiden Hauptoberflächen der Glasfasermatte zugewandten Seiten der Glasfasern angeordnet sein und nur ein kleinerer Teil an den, den Maschenöffnungen der Glasfasermatte zugewandten Seiten der Glasfasern.As far as the secondary fibers are arranged on all sides around the glass fibers of the glass fiber mat, the glass fibers need not be completely covered with secondary fibers, so that the surface of the glass fibers would be completely covered by secondary fibers; The only thing that matters is that the Secondary fibers are arranged on all sides, so in all spatial directions around the fibers of the glass fiber mat around. Furthermore, the secondary fibers are preferably arranged over the entire region of the edges of the building board on the glass fiber mat; The glass fiber mat thus has no continuous areas in the region of the edges of the building board - for example of more than a few mm 2 - on which no secondary fibers are present. The majority of the secondary fibers can be arranged on the, the two main surfaces of the glass fiber mat facing sides of the glass fibers and only a smaller part of the, the mesh openings of the glass fiber mat facing sides of the glass fibers.

Die Sekundärfasern können mittels eines Klebstoffs mit den Glasfasern verbunden sein. Bevorzugt haften die Sekundärfasern jedoch unmittelbar an den Glasfasern an, beispielsweise indem die Sekundärfasern aus einem schmelzgeblasenen Kunststoff gebildet sind, der auf die Glasfasermatte aufgeblasen wird, wodurch sich die Sekundärfasern in situ auf der Glasfasermatte bilden und an dieser anhaften.The secondary fibers may be bonded to the glass fibers by means of an adhesive. However, the secondary fibers preferably adhere directly to the glass fibers, for example, by the secondary fibers are formed from a melt-blown plastic, which is inflated onto the glass fiber mat, whereby the secondary fibers form in situ on the glass fiber mat and adhere to it.

Bevorzugt liegen die Sekundärfasern in Form von Wirrfasern vor, also als wirr angeordnete Fasern die die Glasfasermatte allseitig umgeben. Alternativ können die Sekundärfasern auch ausgerichtet vorliegen, beispielsweise in Form von Fasermatten, in die die Glasfasermatte eingebettet ist.The secondary fibers are preferably present in the form of random fibers, that is to say as randomly arranged fibers which surround the glass fiber mat on all sides. Alternatively, the secondary fibers may also be aligned, for example in the form of fiber mats in which the glass fiber mat is embedded.

Bevorzugt weisen die Sekundärfasern einen Faserdurchmesser auf, der unter dem Durchmesser der Glasfasern liegt. Während die Glasfasern beispielsweise einen Durchmesser im Bereich von 0,1 bis 1,0 mm aufweisen können, weisen die Sekundärfasern bevorzugt einen Durchmesser unter 0,1 mm auf, beispielsweise im Bereich zwischen 0,01 mm und 0,1 mm.Preferably, the secondary fibers have a fiber diameter which is less than the diameter of the glass fibers. For example, while the glass fibers may have a diameter in the range of 0.1 to 1.0 mm, the secondary fibers preferably have a diameter less than 0.1 mm, for example in the range between 0.01 mm and 0.1 mm.

Bevorzugt werden für die Sekundärfasern Kunststofffasern verwendet. Grundsätzlich kann ein beliebiger Kunststoff für die Sekundärfasern gewählt sein, bevorzugt ein Kunststoff aus dem schmelzgeblasene Kunststofffasern erstellt werden können. Beispielsweise können die Kunststofffasern aus thermoplastischen Elastomeren, Polyamiden, Polystyrolen, Polyacrylaten, Polyamiden oder Mischungen daraus bestehen.Preferably, plastic fibers are used for the secondary fibers. In principle, an arbitrary plastic can be selected for the secondary fibers, preferably a plastic from which melt-blown synthetic fibers can be created. For example, the plastic fibers may consist of thermoplastic elastomers, polyamides, polystyrenes, polyacrylates, polyamides or mixtures thereof.

Die Länge der Sekundärfasern kann im Bereich zwischen 0,1 bis 5 mm liegen, also beispielsweise auch im Bereich zwischen 0,3 und 3 mm.The length of the secondary fibers can be in the range between 0.1 to 5 mm, that is, for example, in the range between 0.3 and 3 mm.

Nach einer Ausführungsform liegen die Sekundärfasern in Form von Glasfasern vor. Glasfasern haben gegenüber Kunststofffasern den Vorteil einer geringeren Brennbarkeit. Sekundär-Glasfasern können beispielsweise über einen Klebstoff mit den Glasfasern der Glasfasermatte verbunden sein. Die Sekundärfasern können auch als Gemisch aus Glas- und Kunststofffasern vorliegen, wobei bei dieser Ausführung die Sekundär-Glasfasern über die Kunststofffasern mit den Glasfasern der Glasfasermatte verbunden sein können.In one embodiment, the secondary fibers are in the form of glass fibers. Glass fibers have the advantage of lower flammability compared to plastic fibers. Secondary glass fibers can be connected, for example, via an adhesive to the glass fibers of the glass fiber mat. The secondary fibers can also be present as a mixture of glass and plastic fibers, in which case the secondary glass fibers can be connected via the plastic fibers with the glass fibers of the glass fiber mat.

Anmeldungsgemäß ausgebildete Glasfasermatten können - neben dem Kantenbereich der Bauplatte - im Bereich einer, bevorzugt jedoch im Bereich beider Hauptoberflächen der Bauplatte angeordnet sein. Unter den "Hauptoberflächen" der Bauplatte werden anmeldungsgemäß die großen Flächen beziehungsweise Sichtflächen der Bauplatte verstanden.According to the application formed glass fiber mats can - in addition to the edge region of the building board - be arranged in the region of one, but preferably in the region of both main surfaces of the building board. According to the application, the "major surfaces" of the building board are the large surfaces or visible surfaces of the building board.

Dass die Glasfasermatten "im Bereich" der Hauptoberflächen beziehungsweise der Kanten der Bauplatte angeordnet sind bedeutet, dass die Glasfasermatten entweder unmittelbar an der Oberfläche der Bindemittelmatrix der Bauplatte angeordnet sind oder in geringer Tiefe - wenige Millimeter - im Bereich der Hauptoberflächen beziehungsweise der Kanten in die Matrix der Bauplatte eingebettet sind.The fact that the glass fiber mats are arranged "in the area" of the main surfaces or the edges of the building board means that the glass fiber mats either directly on the surface of the binder matrix of the building board are arranged or at a shallow depth - a few millimeters - are embedded in the matrix of the building board in the region of the main surfaces or the edges.

Die Glasfasermatten können beispielsweise in Form von Glasfasergeweben oder Glasfasernetzen vorliegen. Im Glasfasergewebe können die Glasfasern entweder lose miteinander verwoben oder an ihren Kreuzungspunkten miteinander verklebt sein. Lose miteinander verwobene Glasfasern haben den Vorteil, dass auf einen zusätzlichen Klebstoffeinsatz verzichtet werden kann, was eine erhebliche Kostenersparnis bedeutet und die Brennbarkeit der Bauplatte reduziert, da zur Verklebung von Glasfasern regelmäßig organische Klebstoffe eingesetzt werden.The glass fiber mats may be in the form of glass fiber fabrics or glass fiber nets, for example. In the glass fiber fabric, the glass fibers can either be loosely woven together or glued together at their crossing points. Loose interwoven glass fibers have the advantage that can be dispensed with an additional use of adhesive, which means a significant cost savings and reduces the flammability of the building board, as for the bonding of glass fibers regularly organic adhesives are used.

Die Glasfasermatte kann auch aus an ihren Kreuzungspunkten miteinander verklebten Glasfasern gebildet sein. Zur Verklebung können organische oder anorganische Klebstoffe verwendet werden, beispielsweise Klebstoffe auf Wasserglasbasis, die den Vorteil der Unbrennbarkeit aufweisen.The glass fiber mat can also be formed from glued together at their crossing points glass fibers. For bonding, organic or inorganic adhesives may be used, for example, waterglass-based adhesives having the advantage of incombustibility.

Die Glasfasern der Glasfasermatte weisen bevorzugt einen Durchmesser im Bereich von 0,1 bis 1,0 mm auf, also beispielsweise auch im Bereich von 0,3 bis 0,7 mm. Das Flächengewicht der Glasfasermatte kann beispielsweise im Bereich von 80 bis 160 g/m2 liegen, also beispielsweise auch im Bereich von 100 bis 140 g/m2. Als vorteilhaft hat sich eine Maschendichte von 4 bis 40 Maschen/cm2 erwiesen, also beispielsweise auch eine Maschendichte im Bereich von 8 bis 20 Maschen/cm2.The glass fibers of the glass fiber mat preferably have a diameter in the range of 0.1 to 1.0 mm, that is, for example, in the range of 0.3 to 0.7 mm. The basis weight of the glass fiber mat can be, for example, in the range of 80 to 160 g / m 2 , that is, for example, in the range of 100 to 140 g / m 2 . A mesh density of 4 to 40 meshes / cm 2 has proved to be advantageous, that is, for example, a mesh density in the range of 8 to 20 meshes / cm 2 .

Nach einer bevorzugten Ausführungsform ist vorgesehen, die Glasfasern der Glasfasermatte mit Kunststoff zu ummanteln. Hierdurch kann ein chemischer Angriff des Bindemittels auf die Glasfasern verhindert werden. Bevorzugt können dieser Kunststoff und die Sekundärfasern aus dem gleichen Material Das Flächengewicht der Glasfasermatte erhöht sich um das Gewicht der mit der Glasfasermatte in Kontakt stehenden Sekundärfasern. Dabei können die Sekundärfasern das Flächengewicht der Glasfasermatte beispielsweise um 2 bis 100 g/m2, also beispielsweise auch um 2 bis 80 g/m2, 4 bis 60 g/m2, 8 bis 40 g/m2, 8 bis 20 g/m2 oder 10 bis 20 g/m2 erhöhen.According to a preferred embodiment, it is provided to encase the glass fibers of the glass fiber mat with plastic. This can prevent chemical attack of the binder on the glass fibers. Preferably, this plastic and the secondary fibers of the same material The basis weight of the glass fiber mat increases by the weight of the secondary fibers in contact with the glass fiber mat. In this case, the secondary fibers, the basis weight of the glass fiber mat, for example, 2 to 100 g / m 2 , so for example by 2 to 80 g / m 2 , 4 to 60 g / m 2 , 8 to 40 g / m 2 , 8 to 20 g / m 2 or 10 to 20 g / m 2 increase.

Nach einer bevorzugten Ausführungsform ist die Matrix der Bauplatte mehrschichtig aufgebaut. Beispielweise kann ein innen liegender Kern aus einer, einen Leichtzuschlag enthaltenden Bindemittelmischung nach außen von Bindemittelschlickern, die der Bauplatte eine optisch ansprechende Oberfläche verleihen, abgedeckt sein. Bevorzugt können die Glasfasermatten in diese Bindemittelschlicker, die die Bauplatte allseitig abdecken, eingebettet sein.According to a preferred embodiment, the matrix of the building board has a multilayer structure. For example, an inner core of a binder mixture containing a lightweight aggregate may be covered outwardly by binder slurry which provides the structural panel with a visually pleasing surface. Preferably, the glass fiber mats can be embedded in these binder slips, which cover the building board on all sides.

Bei dem vorgenannten Bindemittelschlicker kann es sich bevorzugt um einen auf Zement basierenden Bindemittelschlicker handeln, der beispielsweise auf einem Gemisch aus Zementmehl, Kalksteinmehl und Wasser basieren.The aforementioned binder slip may preferably be a cement-based binder slip based, for example, on a mixture of cement flour, limestone meal and water.

Grundsätzlich können die Glasfasermatten in einen beliebigen Bindemittelschlicker, bevorzugt jedoch einen Zementschlicker eingebettet sein.In principle, the glass fiber mats can be embedded in any binder slip, but preferably a cement slip.

Der Kern der Bindemittelmatrix der Bauplatte, der beispielsweise auch wie vorstehend beschrieben zwischen Schlickerschichten angeordnet sein kann, kann aus einer beliebigen anorganischen Bindemittelmischung erstellt sein, bevorzugt einer hydraulisch abbindenden Bindemittelmischung, beispielsweise einer Bindemittelmischung auf Zementbasis oder auf Basis Anhydrit.The core of the binder matrix of the building board, which may for example also be arranged between slip layers as described above, can be made of any inorganic binder mixture, preferably a hydraulically setting binder mixture, for example a cement-based binder mixture or anhydrite-based binder mixture.

Um die Dämmeigenschaften der abgebundenen Bindemittelmischung zu verbessern kann die Bindemittelmischung einen oder mehrere der folgenden Leichtzuschlagstoffe enthalten: Blähton, Blähschiefer, expandierte Perlite, expandierte Vermiculite, Blähglas oder Bimsstein. Die Bindemittelmischung kann beliebige weitere Zuschlagstoffe, Zusatzmittel oder Zusatzstoffe enthalten. Beispielsweise können als Zusatzstoffe puzzolanisch reagierende Stoffe, wie beispielsweise Flugasche, eingesetzt werden.To the insulating properties of the set binder mixture to For example, the binder mixture may contain one or more of the following lightweight aggregates: expanded clay, expandable shale, expanded perlite, expanded vermiculite, expanded glass, or pumice. The binder mixture may contain any further additives, additives or additives. For example, pozzolanic substances such as fly ash can be used as additives.

Eine Bindemittelmischung auf Basis Zement kann beispielsweise einen Zementanteil im Bereich zwischen 20 und 40 Masse-%, also beispielsweise auch im Bereich zwischen 25 und 35 Masse-% aufweisen. Der Anteil an Leichtzuschlagstoffen in der Bindemittelmischung kann beispielsweise im Bereich von 40 bis 65 Masse-% liegen, also beispielsweise auch im Bereich von 45 bis 60 Masse-%. Weitere Bindemittelbestandteile, beispielsweise puzzolanisch reagierende Bestandteile, können zum Beispiel im Bereich von 10 bis 20 Masse-% vorliegen. Die vorgenannten Mengenangaben beziehen sich auf die trockene Bindemittelmischung.A cement-based binder mixture may, for example, have a cement content in the range between 20 and 40% by mass, that is to say, for example, in the range between 25 and 35% by mass. The proportion of lightweight aggregates in the binder mixture can be, for example, in the range from 40 to 65% by mass, that is to say, for example, in the range from 45 to 60% by mass. Further binder components, for example pozzolanic reacting constituents, may for example be present in the range from 10 to 20% by mass. The aforementioned quantities are based on the dry binder mixture.

Die trockene Bindemittelmischung wird anschließend mit Wasser angemacht, um eine verarbeitbare Bindemittelmischung zu erhalten.The dry binder mixture is then turned on with water to obtain a workable binder mixture.

Ein Bindemittelschlicker auf Basis Zement kann beispielsweise 15 bis 35, also beispielsweise auch 20 bis 30 Masse-% Zementmehl enthalten. Der Anteil an Kalksteinmehl im Schlicker kann beispielsweise 65 bis 85 Masse-%, also beispielsweise auch 70 bis 80 Masse-% betragen. Die vorgenannten Masseangaben beziehen sich wiederum auf die Trockenbestandteile der Suspension.A binder slip based on cement, for example, 15 to 35, so for example, 20 to 30 mass% cement flour included. The proportion of limestone powder in the slurry can be, for example, 65 to 85% by mass, that is, for example, 70 to 80% by mass. The above-mentioned measures in turn relate to the dry components of the suspension.

Die Trockenbestandteile des Bindemittelschlickers werden anschließend ebenfalls mit Wasser angemacht, um einen Bindemittelschlicker zu erhalten.The dry ingredients of the binder slurry are then also made with water to obtain a binder slip.

Die anmeldungsgemäßen Bauplatten können eine beliebige Form und Größe aufweisen.The building boards according to the application can have any shape and size.

Die Bauplatten können beispielsweise im Wesentlichen rechteckige Hauptoberflächen mit einer Länge von zum Beispiel 1200 mm, 1250 mm, 2400 mm oder 2500 mm aufweisen. Die Breite der Bauplatten kann beispielsweise 900 mm und die Dicke beispielsweise 12,5 mm betragen.The structural panels may, for example, have substantially rectangular main surfaces with a length of, for example, 1200 mm, 1250 mm, 2400 mm or 2500 mm. The width of the building boards, for example, 900 mm and the thickness, for example, 12.5 mm.

Die Bauplatten können beispielsweise ein Gewicht im Bereich von 10 bis 20 kg/m2 aufweisen, also beispielsweise ein Gewicht von etwa 15 kg/m2.The structural panels may for example have a weight in the range of 10 to 20 kg / m 2 , that is, for example, a weight of about 15 kg / m 2 .

Die anmeldungsgemäßen Bauplatten können beispielsweise der Baustoffklasse A1 (nicht brennbar) gemäß DIN 4102 zugehören.The building boards according to the application can, for example, belong to building material class A1 (non-flammable) according to DIN 4102.

Ein Ausführungsbeispiel einer anmeldungsgemäßen Bauplatte kann beispielsweise wie folgt gestaltet sein:An exemplary embodiment of a building board according to the application can, for example, be designed as follows:

Die rechteckige Bauplatte weist eine Breite von 900 mm, eine Länge von 1200 mm und eine Dicke von 12,5 mm auf. Das Gewicht der Platte beträgt 15 kg/m2.The rectangular building board has a width of 900 mm, a length of 1200 mm and a thickness of 12.5 mm. The weight of the plate is 15 kg / m 2 .

Die Bauplatte weist zwei, in einen Zementschlicker eingebettete Glasfasermatten auf, die die Bauplatte im Bereich ihrer beiden Hauptoberflächen sowie im Bereich der vier Kanten abdecken. Zwischen den Zementschlickerlagen, in denen jeweils eine der Glasfasermatten eingebettet ist, ist eine abgebundene anorganische Bindemittelmischung auf Zementbasis angeordnet.The building board has two glass fiber mats embedded in a cement slurry that cover the building board in the area of its two main surfaces and in the area of the four edges. Between the cement slurry layers, in each of which embedded one of the glass fiber mats is a set cement-based inorganic binder mixture.

Die Glasfasermatte weist ein Flächengewicht von 120 g/m2 und eine Maschenanzahl von 12 Maschen/cm2. Die Glasfasern sind lose zu einem Glasfasergewebe verwoben. Der Durchmesser der Glasfasern beträgt 0,5 mm.The glass fiber mat has a basis weight of 120 g / m 2 and a mesh count of 12 mesh / cm 2 . The glass fibers are loosely woven into a glass fiber fabric. The diameter of the glass fibers is 0.5 mm.

Die Glasfasermatten stehen im Bereich der Kanten der Bauplatte allseitig in Kontakt mit Sekundärfasern, die in wirrer Anordnung um die Glasfasern herum angeordnet sind. Die Sekundärfasern bestehen aus schmelzgeblasenen Polyesterfasern, die in situ auf der Glasfasermatte gebildet wurden. Das Flächengewicht der Sekundärfasern liegt bei 80 g/m2. Der Durchmesser der Sekundärfasern beträgt etwa 0,05 mm.The glass fiber mats are in contact with secondary fibers in the region of the edges of the building board, which are arranged in a confused arrangement around the glass fibers. The secondary fibers consist of meltblown polyester fibers formed in situ on the fiberglass mat. The basis weight of the secondary fibers is 80 g / m 2 . The diameter of the secondary fibers is about 0.05 mm.

Der zwischen den Zementschlickern angeordnete Kern der Bindemittelmischung weist folgende Zusammensetzung auf:

Portlandzement:
31 Masse-%
Flugasche:
16 Masse-%
Blähton:
38 Masse-%
Blähschiefer:
15 Masse-%
The core of the binder mixture arranged between the cement slips has the following composition:
Portland cement:
31 mass%
Fly ash:
16% by mass
expanded clay:
38 mass%
expanded shale:
15% by mass

Der Bindemittelschlicker weist folgende Zusammensetzung auf:

Zement:
25 Masse-%
Kalkstein:
75 Masse-%.
The binder slurry has the following composition:
Cement:
25% by mass
Limestone:
75% by mass.

Eine anmeldungsgemäße Bauplatte kann beispielsweise nach dem folgenden Verfahren hergestellt werden:A building board according to the application can be produced, for example, according to the following method:

Eine erste Glasfasermatte wird in den Bereichen, die später im Bereich der Kanten der Bauplatte angeordnet sein werden, mit Sekundärfasern in Kontakt gebracht. Anschließend wird die Glasfasermatte durch einen Bindemittelschlicker gezogen und auf einen Untergrund abgelegt. Auf die entsprechend behandelte, erste Glasfasermatte wird eine, einen Leichtzuschlagstoff enthaltende Bindemittelmischung aufgegeben. Die Glasfasermatte wird mit überstehenden Abschnitten, die die Sekundärfasern aufweisen, um die Bindemittelmischung geklappt. Auf die Bindemittelmischung wird anschließend eine zweite, durch einen Bindemittelschlicker gezogene Glasfasermatte aufgelegt. Der entsprechende Aufbau wird auf die gewünschte Plattendicke komprimiert. Anschließend lässt man die Bindemittelmischung erhärten. Die erhärtete Bindemittelmischung kann anschließend auf das gewünschte Plattenformat zurechtgeschnitten werden.A first fiberglass mat is brought into contact with secondary fibers in the areas which will later be located in the area of the edges of the building board. Subsequently, the glass fiber mat is pulled through a binder slurry and placed on a substrate. On the appropriately treated, first glass fiber mat, a, a lightweight aggregate-containing binder mixture is abandoned. The glass fiber mat is folded around the binder mixture with overhanging portions comprising the secondary fibers. On the binder mixture, a second, drawn through a binder slurry glass fiber mat is then placed. The corresponding structure is compressed to the desired plate thickness. Subsequently, the binder mixture is allowed to harden. The hardened binder mixture can then be trimmed to the desired plate format.

Die anmeldungsgemäße Bauplatte kann beliebigen Anwendungen zugeführt werden, beispielsweise zu Isolierzwecken, als Wand- oder Rohrverkleidung oder auch zur dekorativen Zwecken.The construction board according to the application can be supplied to any application, for example for insulation purposes, as a wall or pipe covering or for decorative purposes.

Es kann vorgesehen sein, die Bauplatte auf Ihrer Außenseite mit zusätzlichen Beschichtungsmitteln zu versehen, beispielsweise mit Kacheln, Fliesen, Farben, Putzen oder sonstigen Mitteln.It can be provided to provide the building board on your outside with additional coating agents, for example with tiles, tiles, paints, plasters or other means.

Weitere Merkmale der Bauplatte ergeben sich aus der nachfolgenden Figurenbeschreibung sowie den Unteransprüchen.Further features of the building board resulting from the following description of the figures and the dependent claims.

Sämtliche der offenbarten Merkmale der Bauplatte können beliebig miteinander kombiniert werden.All of the disclosed features of the building board can be combined with each other.

Ein stark schematisiertes Ausführungsbeispiel der Bauplatte wird in der nachfolgenden Figurenbeschreibung näher erläutert.A highly schematic embodiment of the building board is explained in more detail in the following description of the figures.

Dabei zeigt

Figur 1
eine Aufsicht auf einen Ausschnitt eines Glasfasergewebes ohne Sekundärfasern,
Figur 2
einen Glasfasergewebeausschnitt gemäß Figur 1 in einer seitlichen Schnittansicht,
Figur 3
eine Aufsicht auf einen Glasfasergewebeausschnitt, der in Kontakt mit Sekundärfasern steht,
Figur 4
einen Glasfasergewebeausschnitt gemäß Figur 3 in einer seitlichen Schnittansicht,
Figur 5
eine Aufsicht auf ein Glasfasergewebe,
Figur 6
eine Aufsicht auf eine Hauptoberfläche einer Bauplatte,
Figur 7
eine seitliche Schnittansicht durch die Bauplatte gemäß Figur 6 und
Figur 8
eine vergrößerte seitliche Schnittansicht durch die Bauplatte gemäß Figur 6 in ihrem Randbereich.
It shows
FIG. 1
a view of a section of a glass fiber fabric without secondary fibers,
FIG. 2
a glass fiber fabric cutout according to FIG. 1 in a lateral sectional view,
FIG. 3
a view of a glass fiber fabric cutout in contact with secondary fibers,
FIG. 4
FIG. 2 shows a section of glass fiber fabric according to FIG. 3 in a lateral sectional view;
FIG. 5
a view of a glass fiber fabric,
FIG. 6
a plan view of a main surface of a building board,
FIG. 7
a side sectional view through the structural panel according to Figure 6 and
FIG. 8
an enlarged sectional side view through the structural panel according to Figure 6 in its edge region.

Figur 1 zeigt einen Ausschnitt aus einem Glasfasergewebe 1, das aus lose miteinander verwobenen Glasfasern 3 und 5 besteht. Figur 2 zeigt das Glasfasergewebe 1 gemäß Figur 1 in einer seitlichen Ansicht.Figure 1 shows a section of a glass fiber fabric 1, which consists of loosely interwoven glass fibers 3 and 5. FIG. 2 shows the glass fiber fabric 1 according to FIG. 1 in a side view.

Figur 3 zeigt ein eine Aufsicht auf einen Glasfasergewebeausschnitt 4 gemäß Figur 1, der allseitig mit Kunststofffasern 7 in Kontakt steht. Die Kunststofffasern 7 bestehen aus einem schmelzgeblasenen Kunststoff, der unmittelbar auf das Glasfasergewebe 4 aufgeblasen wurde, so dass die Kunststofffasern 7 in situ auf dem Glasfasergewebe 4 gebildet wurden und an diesem anhaften. Das Glasfasergewebe 4 ist im Bereich der Kanten der Bauplatte (siehe Figur 7) allseitig mit Kunststofffasern 7 belegt. Dabei sind sowohl die Glasfasern 3 und 5, als auch die dazwischen befindlichen Maschen des Glasfasergewebes 4 bedeckt. Die Kunststofffasern 7 stehen, wie Fig. 3 zeigt, unmittelbar oder mittelbar - über weitere Kunststofffasern 7 - in Kontakt mit den Glasfasern 3, 5.FIG. 3 shows a plan view of a glass fiber fabric cut-out 4 according to FIG. 1, which is in contact with synthetic fibers 7 on all sides. The plastic fibers 7 consist of a meltblown plastic which has been inflated directly onto the glass fiber fabric 4, so that the plastic fibers 7 have been formed in situ on the glass fiber fabric 4 and adhere to it. The glass fiber fabric 4 is covered on all sides with plastic fibers 7 in the region of the edges of the building board (see FIG. 7). In this case, both the glass fibers 3 and 5, as well as the intervening meshes of the glass fiber fabric 4 are covered. The plastic fibers 7 are, as shown in FIG. 3, directly or indirectly - via further plastic fibers 7 - in contact with the glass fibers 3, 5.

In Figur 4, die eine seitliche Ansicht eines Glasfasergewebes gemäß Figur 3 im Kantenbereich einer Bauplatte zeigt, ist gut zu erkennen, dass das Glasfasergewebe 4 vollständig in die Kunststofffasern 7 eingebettet ist. Der besseren Erkennbarkeit halber ist in Figur 4 eine - im Verhältnis zur Dicke des Glasfasergewebes - verhältnismäßig dicke Lage aus wirr angeordneten Kunststofffasern 7 auf beiden Seiten des Glasfasergewebes 4 dargestellt. In der praktischen Ausführung können die Lagen aus Kunststofffasern im Mittel auch eine nur verhältnismäßig geringe Dicke, beispielsweise unter 2 mm oder auch nur unter 1 mm aufweisen.In FIG. 4, which shows a side view of a glass fiber fabric according to FIG. 3 in the edge region of a building board, it can be clearly seen that the glass fiber fabric 4 is completely embedded in the plastic fibers 7. For better visibility, FIG. 4 shows a comparatively thick layer of plastic fibers 7 arranged on both sides of the glass fiber fabric 4 in relation to the thickness of the glass fiber fabric. In the practical embodiment, the layers of plastic fibers on average can also have only a relatively small thickness, for example less than 2 mm or even less than 1 mm.

Figur 5 zeigt eine Aufsicht auf ein vollständiges Glasfasergewebe 21, das in seinem Randbereich 20, der später im Bereich der Kanten der Bauplatte angeordnet werden soll, mit Sekundärfasern 7 in Kontakt steht. Der Randbereich 20 ist rahmenartig um das Glasfasergewebe 21 herum angeordnet und weist eine Breite b von etwa 6 cm auf. Der Randbereich 20 der Glasfasermatte 21 ist, wie in den Figuren 3 und 4 dargestellt, allseitig mit Sekundärfasern 7 belegt. Der innenliegenden Bereich 24 des Glasfasergewebes ist frei von Sekundärfasern.FIG. 5 shows a plan view of a complete glass fiber fabric 21, which is in contact with secondary fibers 7 in its edge region 20, which is to be arranged later in the region of the edges of the building board. The edge region 20 is arranged like a frame around the glass fiber fabric 21 around and has a width b of about 6 cm. As shown in FIGS. 3 and 4, the edge region 20 of the glass fiber mat 21 is covered on all sides with secondary fibers 7. The inner region 24 of the glass fiber fabric is free of secondary fibers.

In Figur 6 ist eine Aufsicht auf eine Hauptoberfläche 11 einer Bauplatte 9 gezeigt, die im Bereich der Hauptoberfläche 11 sowie im Bereich der vier Kanten 12.1, 12.2, 12.3, 12.4 ein Glasfasergewebe 21 gemäß Figur 5 aufweist. Da das Glasfaserwebe 21 in einen Zementschlicker eingebettet ist, ist die Oberfläche 11 nahezu flach mit nur geringen Unebenheiten.FIG. 6 shows a plan view of a main surface 11 of a building board 9 which has a glass fiber fabric 21 according to FIG. 5 in the region of the main surface 11 and in the region of the four edges 12.1, 12.2, 12.3, 12.4. Since the glass fiber fabric 21 is embedded in a cement slurry, the surface 11 is almost flat with only slight unevenness.

Figur 7 zeigt eine seitliche Schnittansicht durch die Bauplatte 9 gemäß Figur 6 entlang der Schnittlinie A-A. Zu erkennen sind die beiden gegenüberliegenden Seitenkanten 12.1 und 12.3. Im Bereich dieser beiden Seitenkanten 12.1, 12.3 steht das Glasfasergewebe 21 in Kontakt mit Sekundärfasern 7. Diese Sekundärfasern 7 sind auch noch in schmalen Bereichen 23 an den Hauptoberflächen der Bauplatte, die an die Kanten 12.1, 12.3 angrenzen, an der Glasfasermatte angeordnet.FIG. 7 shows a side sectional view through the structural panel 9 according to FIG. 6 along the section line A-A. To recognize the two opposite side edges 12.1 and 12.3. In the region of these two side edges 12.1, 12.3, the glass fiber fabric 21 is in contact with secondary fibers 7. These secondary fibers 7 are still in narrow areas 23 on the main surfaces of the building board, which adjoin the edges 12.1, 12.3, arranged on the glass fiber mat.

Eine vergrößerte seitliche Schnittansicht durch die Bauplatte 9 gemäß Figur 6 im Bereich ihrer Seitenkante 12.1 zeigt Figur 8. Im Bereich der einen (hier unteren) Hauptoberfläche 13 ist das Glasfasergewebe 21 angeordnet, das den Bereich der Seitenkante 12.1 abdeckt und noch ein kurzes Stück bis in den Bereich der zweiten (hier oberen) Hauptoberfläche 11 ragt. Das Glasfasergewebe steht im Bereich der Kante 12.1 der Bauplatte 9 in Kontakt mit Sekundärfasern 7; die Sekundärfasern 7 sind auch noch im den Bereichen 23 der Glasfasermatte 21 angeordnet, die im Bereich der Hauptoberflächen 11, 13 an die Kante 12.1 angrenzen. Im Bereich der zweiten (hier oberen) Hauptoberfläche 11 ist ein Glasfasergewebe 22 angeordnet, das nicht mir Sekundärfasern in Kontakt steht. Die Matrix der Bauplatte 9 weist einen Kern 15 aus einer abgebundenen anorganischen Bindemittelmischung auf. Die Glasfasermatten 21, 22 sind in Zementschlicker 19 eingebettet, der den Kern 15 der Bauplatte 9 allseitig abdeckt.FIG. 8 shows an enlarged side sectional view through the building board 9 according to FIG. 6 in the region of its side edge 12. In the area of the one (here lower) main surface 13, the glass fiber fabric 21 is located covering the area of the side edge 12. 1 and a short distance up to the area of the second (here upper) main surface 11 protrudes. The glass fiber fabric is in the region of the edge 12.1 of the building board 9 in contact with secondary fibers 7; the secondary fibers 7 are also arranged in the regions 23 of the glass fiber mat 21, in the region of the main surfaces 11, 13 at adjoin the edge 12.1. In the region of the second (upper here) main surface 11, a glass fiber fabric 22 is arranged, which is not in contact with secondary fibers. The matrix of the building board 9 has a core 15 of a hardened inorganic binder mixture. The glass fiber mats 21, 22 are embedded in cement slurry 19, which covers the core 15 of the building board 9 on all sides.

Der Bindemittelkern 15 ist aus einer Zement, Leichtzuschlagstoffen (angedeutet durch die unregelmäßigen Flecken) und Flugasche enthaltenden Bindemittelmischung erstellt. Seine Dicke beträgt etwa 7,5 mm.The binder core 15 is made of a cement, lightweight aggregates (indicated by the irregular spots) and fly ash containing binder mixture. Its thickness is about 7.5 mm.

Der Zementschlicker 19 ist aus einer Zementmehl und Kalksteinmehl enthaltenden Bindemittelmischung erstellt und weist eine Dicke von etwa 2,5 mm auf.The cement slurry 19 is made of a cement flour and limestone flour-containing binder mixture and has a thickness of about 2.5 mm.

Claims (11)

Bauplatte mit a. einer plattenförmigen Matrix (15, 17, 19) aus einer abgebundenen anorganischen Bindemittelmischung, die b. im Bereich wenigstens einer ihrer beiden Hauptoberflächen (11, 13) sowie im Bereich wenigstens eine ihrer Kanten (12.1, 12.2, 12.3, 12.4) eine Glasfasermatte (21) aufweist, wobei c. die Glasfasermatte (21) im Bereich der Kanten der Bauplatte mit Sekundärfasern (7) in Kontakt steht. Building board with a. a plate-shaped matrix (15, 17, 19) of a hardened inorganic binder mixture, the b. in the region of at least one of its two main surfaces (11, 13) and in the region of at least one of its edges (12.1, 12.2, 12.3, 12.4) comprises a glass fiber mat (21), wherein c. the glass fiber mat (21) in the region of the edges of the building board with secondary fibers (7) is in contact. Bauplatte nach Anspruch 1, bei der die Sekundärfasern (7) allseitig um die Fasern (3, 5) der Glasfasermatte (21) herum angeordnet sind.Building board according to Claim 1, in which the secondary fibers (7) are arranged on all sides around the fibers (3, 5) of the glass fiber mat (21). Bauplatte nach Anspruch 1, bei der die Sekundärfasern (7) in Form von Wirrfasern vorliegen.Building panel according to Claim 1, in which the secondary fibers (7) are in the form of random fibers. Bauplatte nach Anspruch 1 mit Sekundärfasern (7) in Form von Glasfasern oder Kunststofffasern.Building board according to claim 1 with secondary fibers (7) in the form of glass fibers or plastic fibers. Bauplatte nach Anspruch 1 mit Sekundärfasern (7) aus einem schmelzgeblasenen Kunststoff.Building board according to claim 1 with secondary fibers (7) made of a melt-blown plastic. Bauplatte nach Anspruch 1 mit einer Glasfasermatte (21) in Form eines Glasfasergewebes oder eines Glasfasernetzes.Building board according to claim 1 with a glass fiber mat (21) in the form of a glass fiber fabric or a glass fiber network. Bauplatte nach Anspruch 1 mit einer Glasfasermatte (21) in Form eines Glasfasergewebes aus lose miteinander verwobenen Glasfasern (3, 5).Building board according to Claim 1, having a glass fiber mat (21) in the form of a glass fiber fabric made of loosely interwoven glass fibers (3, 5). Bauplatte nach Anspruch 1 mit einer Glasfasermatte (21) in Form eines Glasfasergewebes oder eines Glasfasernetzes, bei dem die Glasfasern (3, 5) an ihren Kreuzungspunkten miteinander verklebt sind.Building board according to Claim 1, having a glass fiber mat (21) in the form of a glass fiber fabric or a glass fiber network, in which the glass fibers (3, 5) are glued together at their points of intersection. Bauplatte nach Anspruch 1, bei dem die Glasfasermatte (21) in einen abgebundenen, anorganischen Bindemittelschlicker (17, 19) eingebunden ist.Building board according to Claim 1, in which the glass fiber mat (21) is bound into a set, inorganic binder slurry (17, 19). Bauplatte nach Anspruch 1 mit einer Matrix aus einer abgebundenen Bindemittelmischung (15) auf Zementbasis.A building panel according to claim 1 comprising a matrix of a cement-based set binder mixture (15). Bauplatte nach Anspruch 1, bei der die Matrix einen Kern aus einer, einen Leichtzuschlag enthaltenden, abgebundenen Bindemittelmischung (15) auf Zementbasis aufweist, der nach außen von Schichten aus einem abgebundenen, anorganischen Bindemittelschlicker abgedeckt ist.The structural panel of claim 1, wherein the matrix comprises a core of a lightweight aggregate cementitious binder mixture (15) covered to the outside by layers of a set inorganic binder slip.
EP06022569A 2005-11-04 2006-10-28 Building board Active EP1783294B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107882258A (en) * 2017-12-29 2018-04-06 长沙紫宸科技开发有限公司 A kind of architectural engineering flexible compound floor
DE102017102366A1 (en) 2017-02-07 2018-08-09 Technische Universität Dresden End anchorage of textile fabrics

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2808723A1 (en) 1978-03-01 1979-09-06 Rigips Baustoffwerke Gmbh BUILDING PLATE MADE OF PLASTER WITH A COATING OF GLASS FIBER
US5030502A (en) 1990-02-02 1991-07-09 Teare John W Cementitious construction panel
US6054205A (en) * 1997-05-29 2000-04-25 Clark-Schwebel Tech-Fab Company Glass fiber facing sheet and method of making same
EP1012422B1 (en) 1997-09-12 2002-11-13 National Gypsum Company Cementitious panel with reinforced edges
US20040142618A1 (en) * 2003-01-21 2004-07-22 Saint Gobain Technical Fabrics Facing material with controlled porosity for construction boards
US20040209060A1 (en) * 2003-04-15 2004-10-21 National Gypsum Properties Llc Wallboard containing scrim and matt

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3325879A1 (en) * 1982-07-27 1984-02-02 Karl 6078 Neu-Isenburg Karner Reinforcing lattice made of various materials
DE19804325C2 (en) * 1998-02-04 2000-02-10 Perlite Gmbh Monolithic cement-based building board and process for its manufacture

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2808723A1 (en) 1978-03-01 1979-09-06 Rigips Baustoffwerke Gmbh BUILDING PLATE MADE OF PLASTER WITH A COATING OF GLASS FIBER
US5030502A (en) 1990-02-02 1991-07-09 Teare John W Cementitious construction panel
US5030502B1 (en) 1990-02-02 1992-09-15 W Teare John
US6054205A (en) * 1997-05-29 2000-04-25 Clark-Schwebel Tech-Fab Company Glass fiber facing sheet and method of making same
EP1012422B1 (en) 1997-09-12 2002-11-13 National Gypsum Company Cementitious panel with reinforced edges
US20040142618A1 (en) * 2003-01-21 2004-07-22 Saint Gobain Technical Fabrics Facing material with controlled porosity for construction boards
US20040209060A1 (en) * 2003-04-15 2004-10-21 National Gypsum Properties Llc Wallboard containing scrim and matt

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017102366A1 (en) 2017-02-07 2018-08-09 Technische Universität Dresden End anchorage of textile fabrics
CN107882258A (en) * 2017-12-29 2018-04-06 长沙紫宸科技开发有限公司 A kind of architectural engineering flexible compound floor

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ATE490377T1 (en) 2010-12-15
DE102005053104A1 (en) 2007-05-10
DE502006008429D1 (en) 2011-01-13
PL1783294T3 (en) 2011-04-29
ES2355255T3 (en) 2011-03-24
DE102005053104B4 (en) 2011-03-31
EP1783294B1 (en) 2010-12-01

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