EP0067237B1 - Reinforcement in the shape of plastic-laminated fibre cloth - Google Patents

Reinforcement in the shape of plastic-laminated fibre cloth Download PDF

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Publication number
EP0067237B1
EP0067237B1 EP19810104549 EP81104549A EP0067237B1 EP 0067237 B1 EP0067237 B1 EP 0067237B1 EP 19810104549 EP19810104549 EP 19810104549 EP 81104549 A EP81104549 A EP 81104549A EP 0067237 B1 EP0067237 B1 EP 0067237B1
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European Patent Office
Prior art keywords
threads
reinforcement
sheathing
thread
coating
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EP19810104549
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German (de)
French (fr)
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EP0067237A1 (en
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Werner Vogel
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Individual
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Priority to DE8181104549T priority Critical patent/DE3165840D1/en
Priority to EP19810104549 priority patent/EP0067237B1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04—Bases for plaster

Definitions

  • the invention relates to a reinforcement in the form of a plastic-coated thread grid.
  • Thread displacements can also take place in the known lattice-shaped reinforcement fabrics or layings when tension occurs in the wall plaster, which in turn can lead to the formation of cracks. Thread shifts can also destroy the protective layer against the attack of alkalis, which results in further destruction (the reinforcement and finally the plastering of the wall).
  • the threads of the reinforcing mesh are individually provided with a multiple, preferably double sheathing made of thermoplastic material, an inner sheathing being applied to the core of the threads and an outer sheathing being applied to the inner sheathing, and the threads being over the casing is thermofused at least at the crossing points.
  • the multiple, preferably double sheathing of the lattice threads with thermoplastic plastic offers optimal protection against attack by chemical substances, while the thermal welding of the individual threads at their crossing points, which is carried out by heating the lattice above the melting point of the thermoplastic material, the mechanical strength of the Grid greatly improved and practically excludes thread shifts in particular.
  • the core material of the threads made of glass fibers, metal, polyester fibers and. Like exist.
  • the core material essentially determines the strength, elasticity and elasticity of the reinforcement.
  • thermoplastic material for the jackets depends above all on the necessary chemical resistance. So z. B. Reinforcements for most building materials (plaster mortar, concrete) must be alkali-resistant. Glass fibers are not alkali-resistant, which is why a reinforcing mesh with glass threads must be coated with an alkali-resistant thermoplastic. PVC (polyvinyl chloride) is particularly suitable for this. PVC is also suitable in other cases as a material for sheathing the lattice threads, e.g. B. for sheathing polyester threads of a reinforcement grid for asphalt.
  • the sheaths according to the invention of the individual threads of the reinforcement grid are also advantageous for the adhesion between the reinforcement grid and the material to be reinforced, namely when the nozzle with which the sheath is carried out has a cross section which causes small grooves in the surface of the sheath .
  • the individual threads are provided according to the invention with a multiple, preferably double covering made of thermoplastic material. It is expedient here if essentially only the outer sheaths of the crossing threads are thermofused at the crossing points.
  • the reinforcement grid can preferably be produced as a fabric, in particular in plain weave.
  • a reinforcement grid for Fine plaster can e.g. B. have grid openings of 0.4 to 0.5 cm.
  • For coarse plaster a reinforcing mesh with mesh openings of z. B. 0.7 to 1.0 cm.
  • An asphalt reinforcement grid you can e.g. B. Use grid openings of 1.5 cm.
  • Reinforcements for foams are usually equipped with smaller mesh openings, e.g. B. 0.4 to 0.5 cm.
  • the reinforcing mesh according to the invention is not a fine-mesh mesh, as is the case, for example, with a fly screen, but rather a mesh or mesh fabric with mesh openings of at least a few millimeters up to several centimeters.
  • the lattice-like, plain-weave fabric shown in FIGS. 1 and 2 has warp threads 1 'and weft threads 1 "which, as can be seen in FIGS. 3 to 5, consist of a core 2 made of glass fibers and a double sheathing 3', 3" made of thermoplastic Material. This fabric is welded by brief heating in the crossing points 4 of the threads 1 ', 1 ".
  • the sheathing 3', 3" consists, for. B. PVC.
  • Such a fabric is resistant to alkalis. and therefore particularly suitable for reinforcing external and internal plaster.
  • a lattice fabric is shown in plain weave.
  • the reinforcing mesh according to the invention can also be produced in various other types of binding.
  • the warp or the weft can also consist of a bundle of threads each consisting of two or more individual threads lying directly next to one another and covered with thermoplastic plastic.
  • the lattice openings are not delimited by individual threads, but by bundles of threads.
  • the threads 1 ', 1 “have a double sheathing 3' and 3" made of thermoplastic material.
  • the core 2 is provided with the inner jacket 3 'and in a second step, the outer jacket 3 "is applied to the inner jacket 3'.
  • the outer jacket 3" represents a complete jacket of the single thread. Because of the double Sheathing does not matter if the core 2 is not exactly centered in the inner sheathing 3 'or is even partially exposed on the surface of the inner sheathing 3' because this defect is eliminated by the outer sheathing 3 ".
  • the outer sheathing 3" also covers any fibers that protrude from the core 2 or that are formed by air pockets in the production of the inner sheath in the holes that extend to the core 2.
  • the outer casing 3 "expediently has a smaller thickness (layer thickness) than the inner casing 3 '.
  • the outer casing has a smooth surface.
  • a particularly good adhesion between the threads of the reinforcing mesh and the material to be reinforced, e.g. B. plastering mortar is achieved when - as can be seen from Fig. 4 - the surface of the outer casing 3 "has a roughening, for example in the form of corrugation, for example by appropriate design of the nozzle with the help of which the casing done, can be achieved.
  • Fig. 5 shows how the double sheathing affects the crossing points of the threads.
  • the outer sheathing 3 " is thermally welded at the crossing points, as a result of which the outer sheathing 3" of the crossing threads fuse to form a homogeneous, uniform layer.
  • the inner sheaths 3 'of the thread cores 2 are preferably retained, i. H. there is expediently no (complete) welding of the inner sheaths 3 'to the outer sheaths 3 ", so that between the thread core and thread core of two crossing threads there are three layers of thermoplastic material which completely surround the thread cores 2.
  • the manufacture of the reinforcing mesh according to the invention can advantageously, for. B. in the following manner or with the help of the facilities described below.

Description

Die Erfindung betrifft eine Armierung in Form eines kunststoffüberzogenen Fadengitters.The invention relates to a reinforcement in the form of a plastic-coated thread grid.

Es ist bekannt für Armierungszwecke, z. B. für Mauerputz, Straßenbeläge u. dgl., gitterförmige Gewebe oder Gelege zu verwenden, deren Fäden aus Glasfasern bestehen. Es wurde auch bereits vorgeschlagen, für diese Zwecke kunststoffimprägnierte oder -umhüllte Glasfasergewebe zu verwenden, und zwar auch solche, bei denen die Fäden des Netzes an ihren Berührungspunkten durch die Kunststoffimprägnierung oder -umhüllung zusammengehalten werden (DE-A-1759133). Solche gitterförmigen Gewebe bzw. Gelege werden entweder im Tauchverfahren oder mit Hilfe einer Schwammrolle mit Kunststoff oder Imprägnierungsschlichte beschichtet, welcher alkaliabweisende Zusätze beigemengt sind, und anschließend getrocknet. Durch diese Maßnahmen versucht man, die einzelnen Fäden nicht nur gegeneinander schiebefest zu machen, sondern auch die Glasfasern gegen den Angriff von alkalischen Substanzen zu schützen. Derartige Bewehrungen haben jedoch den Nachteil, daß die Schutzschicht auf den Glasfasern durch mechanische Beanspruchung leicht zu beschädigen ist bzw. daß sie auf Grund ihrer nachträglichen Aufbringung oftmals Fehlstellen aufweist, an denen die Glasfasern frei liegen und daher dem Angriff von alkalischen Substanzen ausgesetzt sind. Außerdem reicht die Imprägnierungsschlichte bzw. der Kunststoffüberzug nicht immer aus, um bei mechanischen Einwirkungen Fadenverschiebungen zu vermeiden. Solche Fadenverschiebungen könnten beispielsweise beim Auftragen des Putzmörtels die gleichmäßige Durchdringung des Armierungsgitters mit dem Putzmörtel beeinträchtigen, was die Bildung von Rissen im Mauerputz zur Folge haben kann. Fadenverschiebungen können in den bekannten gitterförmigen Armierungsgeweben bzw. -gelegen auch bei Auftreten von Spannungen im Mauerputz erfolgen, was wiederum zur Bildung von Rissen führen kann. Fadenverschiebungen können aber auch die Schutzschichte gegen den Angriff von Alkalien zerstören, was weitere Zerstörungen (der Armierung und schließlich des Mauerputzes) zur Folge hat.It is known for reinforcement purposes, e.g. B. for plastering, road surfaces and. Like. To use latticed fabrics or scrims, the threads of which are made of glass fibers. It has also been proposed to use plastic-impregnated or coated glass fiber fabrics for this purpose, including those in which the threads of the network are held together at their points of contact by the plastic impregnation or coating (DE-A-1759133). Such lattice-shaped fabrics or scrims are coated with plastic or impregnation wash either with the immersion process or with the aid of a sponge roller, and alkali-repellent additives are added, and then dried. These measures attempt not only to make the individual threads resistant to sliding against one another, but also to protect the glass fibers against the attack of alkaline substances. However, such reinforcements have the disadvantage that the protective layer on the glass fibers is easily damaged by mechanical stress or that due to their subsequent application they often have defects where the glass fibers are exposed and are therefore exposed to the attack of alkaline substances. In addition, the impregnation size or the plastic coating is not always sufficient to avoid thread displacements under mechanical influences. Such thread displacements could, for example, affect the uniform penetration of the reinforcing mesh with the plastering mortar when applying the plastering mortar, which can result in the formation of cracks in the plastering of the wall. Thread displacements can also take place in the known lattice-shaped reinforcement fabrics or layings when tension occurs in the wall plaster, which in turn can lead to the formation of cracks. Thread shifts can also destroy the protective layer against the attack of alkalis, which results in further destruction (the reinforcement and finally the plastering of the wall).

Auch bei anderen Armierungsfällen ist es wichtig, daß die festigkeitsmäßig tragenden Gitterfäden gegenüber chemischen Angriffen und mechanischen Beanspruchungen, insbesondere gegen ein Verschieben der Gitterfäden besonders gut geschützt sind und es ist Aufgabe der Erfindung, eine Armierung in Form eines kunststoffüberzogenen Fadengitters zu schaffen, die diesen Anforderungen entspricht.In other cases of reinforcement, it is important that the reinforcing lattice threads are particularly well protected against chemical attacks and mechanical stresses, in particular against displacement of the lattice threads, and it is an object of the invention to provide reinforcement in the form of a plastic-coated thread lattice that meets these requirements corresponds.

Dies wird erfindungsgemäß dadurch erreicht, daß die Fäden des Armierungsgitters einzeln mit einer mehrfachen, vorzugsweise doppelten Ummantelung aus thermoplastischem Kunststoff versehen sind, wobei auf den Kern der Fäden eine innere Ummantelung und auf die innere Ummantelung eine äußere Ummantelung aufgebracht wird, und daß die Fäden über die Ummantelung zumindest an den Kreuzungsstellen thermoverschweißt sind.This is achieved according to the invention in that the threads of the reinforcing mesh are individually provided with a multiple, preferably double sheathing made of thermoplastic material, an inner sheathing being applied to the core of the threads and an outer sheathing being applied to the inner sheathing, and the threads being over the casing is thermofused at least at the crossing points.

Die mehrfache, vorzugsweise doppelte Ummantelung der Gitterfäden mit thermoplastischem Kunststoff bietet hiebei einen optimalen Schutz gegen Angriffe von chemischen Substanzen, während die Thermoverschweißung der einzelnen Fäden an ihren Kreuzungspunkten, welche durch Erhitzung des Gitters über den Schmelzpunkt des thermoplastischen Materials durchgeführt wird, die mechanische Festigkeit des Gitters außerordentlich verbessert und insbesondere Fadenverschiebungen praktisch ausschließt.The multiple, preferably double sheathing of the lattice threads with thermoplastic plastic offers optimal protection against attack by chemical substances, while the thermal welding of the individual threads at their crossing points, which is carried out by heating the lattice above the melting point of the thermoplastic material, the mechanical strength of the Grid greatly improved and practically excludes thread shifts in particular.

Je nach Anwendungsfall des erfindungsgemäßen Armierungsgitters kann das Kernmaterial der Fäden aus Glasfasern, Metall, Polyesterfasern u. dgl. bestehen, wobei das Kernmaterial im wesentlichen die Festigkeit, Dehnbarkeit und Elastizität der Armierung bestimmt.Depending on the application of the reinforcing mesh according to the invention, the core material of the threads made of glass fibers, metal, polyester fibers and. Like exist. The core material essentially determines the strength, elasticity and elasticity of the reinforcement.

Die Wahl des thermoplastischen Kunststoffmaterials für die Unmantelungen hängt vor allem vor der nötigen chemischen Beständigkeit ab. So z. B. müssen Armierungen für die meisten Baustoffe (Putzmörtel, Beton) alkalibeständig sein. Glasfasern sind nicht alkalibeständig, weshalb bei einem Armierungsgitter mit Glasfäden diese mit einem alkalibeständigen thermoplastischen Kunststoff ummantelt werden müssen. Dafür eignet sich besonders PVC (Polyvinylchlorid). PVC eignet sich aber auch in anderen Fällen als Material für die Ummantelung der Gitterfäden, z. B. zur Ummantelung von Polyesterfäden eines Armierungsgitters für Asphalt.The choice of the thermoplastic material for the jackets depends above all on the necessary chemical resistance. So z. B. Reinforcements for most building materials (plaster mortar, concrete) must be alkali-resistant. Glass fibers are not alkali-resistant, which is why a reinforcing mesh with glass threads must be coated with an alkali-resistant thermoplastic. PVC (polyvinyl chloride) is particularly suitable for this. PVC is also suitable in other cases as a material for sheathing the lattice threads, e.g. B. for sheathing polyester threads of a reinforcement grid for asphalt.

Die erfindungsgemäßen Ummantelungen der einzelnen Fäden des Armierungsgitters sind auch für die Haftung zwischen Armierungsgitter und dem zu armierenden Material von Vorteil, dann nämlich, wenn die Düse, mit deren Hilfe die Ummantelung erfolgt, einen Querschnitt aufweist, der kleine Rillen in der Oberfläche der Ummantelung verursacht.The sheaths according to the invention of the individual threads of the reinforcement grid are also advantageous for the adhesion between the reinforcement grid and the material to be reinforced, namely when the nozzle with which the sheath is carried out has a cross section which causes small grooves in the surface of the sheath .

Um eine vollkommene Umhüllung der Gitterfäden zu erreichen, werden die einzelnen Fäden erfindungsgemäß mit einer mehrfachen, vorzugsweise doppelten Ummantelung aus thermoplastischem Kunststoff versehen. Dabei ist es zweckmäßig, wenn an den Kreuzungsstellen im wesentlichen nur die äußeren Ummantelungen der sich kreuzenden Fäden thermoverschweißt sind.In order to achieve a complete covering of the lattice threads, the individual threads are provided according to the invention with a multiple, preferably double covering made of thermoplastic material. It is expedient here if essentially only the outer sheaths of the crossing threads are thermofused at the crossing points.

Das Armierungsgitter kann vorzugsweise als Gewebe, insbesondere in Leinwandbindung hergestellt werden. Auch durch das Verweben und die dabei üblicherweise auftretenden Fadenverdrehungen wird die Haftung zwischen Armierungsgitter und zu armierendem Material günstig beeinflußt.The reinforcement grid can preferably be produced as a fabric, in particular in plain weave. The weaving and the thread twists that usually occur thereby have a favorable influence on the adhesion between the reinforcing mesh and the material to be reinforced.

Die Größe der Gitteröffnungen bzw. Maschenweite des Gittergewebes hängt vom Anwendungsfall ab. Ein Armierungsgitter für Feinputz kann z. B. Gitteröffnungen von 0,4 bis 0,5 cm aufweisen. Für Grobputz eignet sich besser ein Armierungsgitter mit Gitteröffnungen von z. B. 0,7 bis 1,0 cm. Bei einem Asphalt-Armierungsgitter kann man z. B. Gitteröffnungen von 1,5 cm anwenden. Armierungen für Schaumstoffe werden meist mit geringeren Gitteröffnungen ausgestattet, z. B. 0,4 bis 0,5 cm. In jedem Falle handelt es sich aber beim erfindungsgemäßen Armierungsgitter nicht um ein feinmaschiges Gitter, wie dies etwa bei einem Fliegengitter der Fall ist, sondern um ein Gitter bzw. Gittergewebe mit Gitteröffnungen von mindestens einigen Millimetern bis zu mehreren Zentimetern.The size of the mesh openings or mesh size of the mesh depends on the application. A reinforcement grid for Fine plaster can e.g. B. have grid openings of 0.4 to 0.5 cm. For coarse plaster, a reinforcing mesh with mesh openings of z. B. 0.7 to 1.0 cm. With an asphalt reinforcement grid you can e.g. B. Use grid openings of 1.5 cm. Reinforcements for foams are usually equipped with smaller mesh openings, e.g. B. 0.4 to 0.5 cm. In any case, however, the reinforcing mesh according to the invention is not a fine-mesh mesh, as is the case, for example, with a fly screen, but rather a mesh or mesh fabric with mesh openings of at least a few millimeters up to several centimeters.

Weitere Einzelheiten der Erfindung werden nachfolgend unter Bezugnahme auf die Zeichnungsfiguren erläutert.Further details of the invention are explained below with reference to the drawing figures.

  • Figur 1 zeigt in Draufsicht ein erfindungsgemäßes Armierungsgitter,FIG. 1 shows a top view of a reinforcement grid according to the invention,
  • Figur 2 ist ein Querschnitt des Armierungsgitters,FIG. 2 is a cross section of the reinforcement grid,
  • Figur 3 zeigt den Querschnitt eines Einzelfadens mit doppelter Ummantelung,FIG. 3 shows the cross section of a single thread with a double sheathing,
  • Figur 4 zeigt ebenfalls den Querschnitt eines Einzelfadens mit doppelter Ummantelung,FIG. 4 also shows the cross section of a single thread with double sheathing,
  • Figur 5 zeigt im Schnitt zwei Kreuzungsstellen von Einzelfäden mit doppelter Ummantelung.Figure 5 shows an average of two crossing points of single threads with double sheathing.

Das in Fig. 1 und 2 gezeigte gitterförmige leinwandbindige Gewebe weist Kettfäden 1' und Schußfäden 1" auf, welche - wie aus Fig. 3 bis 5 ersichtlich -, aus einem Kern 2 aus Glasfasern und einer doppelten Ummantelung 3', 3" aus thermoplastischem Material bestehen. Dieses Gewebe ist durch kurzzeitige Erhitzung in den Kreuzungspunkten 4 der Fäden 1', 1" verschweißt. Die Ummantelung 3', 3" besteht z. B. aus PVC. Ein derartiges Gewebe ist resistent gegen Alkalien. und daher besonders für die Armierung von Außen- und Innenputz geeignet.The lattice-like, plain-weave fabric shown in FIGS. 1 and 2 has warp threads 1 'and weft threads 1 "which, as can be seen in FIGS. 3 to 5, consist of a core 2 made of glass fibers and a double sheathing 3', 3" made of thermoplastic Material. This fabric is welded by brief heating in the crossing points 4 of the threads 1 ', 1 ". The sheathing 3', 3" consists, for. B. PVC. Such a fabric is resistant to alkalis. and therefore particularly suitable for reinforcing external and internal plaster.

In Fig. 1 und 2 ein Gittergewebe in Leinwandbindung dargestellt. Das erfindungsgemäße Armierungsgitter kann aber auch in verschiedenen anderen Bindungsarten hergestellt werden. Dabei kann die Kette oder der Schuß auch aus je einem Fadenbündel aus zwei oder mehreren unmittelbar aneinanderliegenden mit thermoplastischem Kunststoff ummantelten Einzelfäden bestehen. Die Gitteröffnungen sind also in diesem Fall nicht von Einzelfäden, sondern von Fadenbündeln begrenzt. Beim Thermoverschwei- ßen der Einzelfäden - an sich erfindunggemäß für die Kreuzungsstellen vorgesehen - kann bei einem aus einem Fadenbündel bestehender Kett-oder Schußfaden ein Verschweißen der Einzelfäden des Fadenbündels auch zwischen den Kreuzungsstellen erfolgen.1 and 2, a lattice fabric is shown in plain weave. The reinforcing mesh according to the invention can also be produced in various other types of binding. The warp or the weft can also consist of a bundle of threads each consisting of two or more individual threads lying directly next to one another and covered with thermoplastic plastic. In this case, the lattice openings are not delimited by individual threads, but by bundles of threads. When the individual threads are thermally welded - provided according to the invention for the crossing points - in the case of a warp or weft thread consisting of a thread bundle, the individual threads of the thread bundle can also be welded between the crossing points.

Wie bereits ausgeführt, weisen die Fäden 1', 1" eine doppelte Ummantelung 3' und 3" aus thermoplastischem Kunststoff auf. Dabei wird in einem ersten Arbeitsgang der Kern 2 mit der inneren Ummantelung 3' versehen und in einem zweiten Arbeitsgang auf die innere Ummantelung 3' die äußere Ummantelung 3" aufgebracht. Die äußere Ummantelung 3" stellt eine vollständige Ummantelung des Einzelfadens dar. Wegen der doppelten Ummantelung ist es gleichgültig, wenn der Kern 2 in der inneren Ummantelung 3' nicht exakt zentrisch liegt oder gar stellenweise an der Oberfläche der inneren Ummantelung 3' frei liegt, weil dieser Mangel durch die äußere Ummantelung 3" beseitigt wird. Die äußere Ummantelung 3" bedeckt auch allfällige vom Kern 2 abstehende Fasern oder durch Lufteinschlüsse bei der Herstellung der inneren Ummantelung in dieser gebildete, bis zum Kern 2 reichende Löcher. Die äußere Ummantelung 3" weist zweckmäßig eine geringere Stärke (Schichtdicke) auf als die innere Ummantelung 3'.As already stated, the threads 1 ', 1 "have a double sheathing 3' and 3" made of thermoplastic material. In a first step, the core 2 is provided with the inner jacket 3 'and in a second step, the outer jacket 3 "is applied to the inner jacket 3'. The outer jacket 3" represents a complete jacket of the single thread. Because of the double Sheathing does not matter if the core 2 is not exactly centered in the inner sheathing 3 'or is even partially exposed on the surface of the inner sheathing 3' because this defect is eliminated by the outer sheathing 3 ". The outer sheathing 3" also covers any fibers that protrude from the core 2 or that are formed by air pockets in the production of the inner sheath in the holes that extend to the core 2. The outer casing 3 "expediently has a smaller thickness (layer thickness) than the inner casing 3 '.

Gemäß Fig. 3 besitzt die äußere Ummantelung eine glatte Oberfläche. Eine besonders gute Haftung zwischen den Fäden des Armierungsgitters und dem zu armierenden Material, z. B. Putzmörtel, wird erreicht, wenn - wie aus Fig. 4 ersichtlich - die Oberfläche der äußeren Ummantelung 3" eine Rauhung, z. B. in Form einer Riffelung, aufweist, die beispielsweise durch entsprechende Ausbildung der Düse, mit deren Hilfe die Ummantelung erfolgt, erzielt werden kann.3, the outer casing has a smooth surface. A particularly good adhesion between the threads of the reinforcing mesh and the material to be reinforced, e.g. B. plastering mortar is achieved when - as can be seen from Fig. 4 - the surface of the outer casing 3 "has a roughening, for example in the form of corrugation, for example by appropriate design of the nozzle with the help of which the casing done, can be achieved.

Wie sich die doppelte Ummantelung an den Kreuzungsstellen der Fäden auswirkt, veranschaulicht Fig.5. Demnach erfolgt an den Kreuzungsstellen eine Thermoverschweißung der äußeren Ummantelung 3", wodurch die äußeren Ummantelungen 3" der sich kreuzenden Fäden zu einer homogenen einheitlichen Schicht verschmelzen. Vorzugsweise bleiben dabei die inneren Ummantelungen 3' der Fadenkerne 2 erhalten, d. h. es erfolgt zweckmäßig keine (vollständige) Verschweißung der inneren Ummantelungen 3' mit den äußeren Ummantelungen 3", so daß zwischen Fadenkern und Fadenkern zweier sich kreuzender Fäden drei die Fadenkerne 2 vollständig umhüllende Schichten aus thermoplastischem Kunststoff vorhanden sind.Fig. 5 shows how the double sheathing affects the crossing points of the threads. Accordingly, the outer sheathing 3 "is thermally welded at the crossing points, as a result of which the outer sheathing 3" of the crossing threads fuse to form a homogeneous, uniform layer. The inner sheaths 3 'of the thread cores 2 are preferably retained, i. H. there is expediently no (complete) welding of the inner sheaths 3 'to the outer sheaths 3 ", so that between the thread core and thread core of two crossing threads there are three layers of thermoplastic material which completely surround the thread cores 2.

Die Herstellung der erfindungsgemäßen Armierungsgitters kann mit Vorteil z. B. auf folgende Weise bzw. mit Hilfe der nachstehend beschriebenen Einrichtungen erfolgen.The manufacture of the reinforcing mesh according to the invention can advantageously, for. B. in the following manner or with the help of the facilities described below.

Zur Ummantelung der Einzelfäden kann eine Anlage verwendet werden, die folgende Funktionsteile umfaßt :

  • - ein Spulengatter, für den Abzug der Fadenkerne ;
  • - eine erste Taucheinrichtung zum Tauchen und Ummanteln der Fadenkerne mit thermoplastischem Kunststoff (innere Ummantelung) ;
  • - eine erste Geliereinrichtung zum Vortrocknen der inneren Ummantelung ;
  • - eine zweite Taucheinrichtung zum Tauchen und Ummanteln der bereits mit der inneren Ummantelung versehenen Fäden mit thermoplastischem Kunststoff (äußere Ummantelung) ;
  • - eine zweite Geliereinrichtung zum Ausgelieren (Trocknen) der äußeren Ummantelung ;
  • - eine Aufspulanlage zum Aufspulen der fertig doppelt ummantelten Einzelfäden.
A system can be used to coat the individual threads, which comprises the following functional parts:
  • - a creel for the withdrawal of the thread cores;
  • - A first dipping device for dipping and sheathing the thread cores with thermoplastic material (inner sheath);
  • a first gelling device for predrying the inner casing;
  • a second immersion device for immersing and sheathing the threads already provided with the inner sheath with thermoplastic material (outer sheath);
  • - a second gelling device for gelling (drying) the outer casing;
  • - A winding system for winding the finished double-coated single threads.

Bei der Vortrocknung der inneren Ummantelung kann durch Schrumpfen eine nicht exakt glatte Oberfläche der inneren Ummantelung entstehen, was für die Haftung der äußeren Ummantelung auf der inneren ein Vorteil sein kann. Eine dritte Tauch- und Geliereinrichtung wäre bei einer dreifachen Ummantelung der Fadenkerne erforderlich, doch reicht im allgemeinen eine doppelte Ummantelung aus.When pre-drying the inner jacket By shrinking, a not exactly smooth surface of the inner sheathing can arise, which can be an advantage for the adhesion of the outer sheathing to the inner one. A third dipping and gelling device would be required for triple sheathing of the filament cores, but a double sheathing is generally sufficient.

Claims (6)

1. Reinforcement in the form of a plastics- coated thread lattice, characterized in that the threads (1', 1") of the reinforcing lattice are individually coated with a multiple, preferably double coating (3', 3") of thermoplastic material, an inner coating (3') being applied to the core (2) of the threads (1', 1") and an outer coating (3") being applied to the inner coating, and that the threads (1', 1") are thermowelded at least in the points of intersection by the coatings (3', 3").
2. Reinforcement according to claim 1, characterized in that the inner coating (3') has a greater layer thickness than the outer coating (3").
3. Reinforcement according to claim 1 or 2, characterized in that in the points of intersection substantially only the outer coatings (3") of the intersecting threads are thermowelded.
4. Reinforcement according to one to claims 1 to 3, characterized in that the outer surface of the coating (3") of the individual threads is roughened, e. g. in the form of corrugations.
5. Reinforcement according to one of claims 1 to 4, characterized in that the coating (3', 3") of the individual thread is of PVC.
6. Reinforcement according to one of claims 1 to 5, characterized in that the reinforcing lattice is a latticed web preferably of plain weave.
EP19810104549 1981-06-12 1981-06-12 Reinforcement in the shape of plastic-laminated fibre cloth Expired EP0067237B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8181104549T DE3165840D1 (en) 1981-06-12 1981-06-12 Reinforcement in the shape of plastic-laminated fibre cloth
EP19810104549 EP0067237B1 (en) 1981-06-12 1981-06-12 Reinforcement in the shape of plastic-laminated fibre cloth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19810104549 EP0067237B1 (en) 1981-06-12 1981-06-12 Reinforcement in the shape of plastic-laminated fibre cloth

Publications (2)

Publication Number Publication Date
EP0067237A1 EP0067237A1 (en) 1982-12-22
EP0067237B1 true EP0067237B1 (en) 1984-09-05

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EP19810104549 Expired EP0067237B1 (en) 1981-06-12 1981-06-12 Reinforcement in the shape of plastic-laminated fibre cloth

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EP (1) EP0067237B1 (en)
DE (1) DE3165840D1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006047460A1 (en) * 2006-10-07 2008-04-10 Andreas Kufferath Gmbh & Co. Kg Reinforcing device for use with components made of castable, hardening materials, such as concrete materials, and components produced therewith
US9017495B2 (en) 2000-01-05 2015-04-28 Saint-Gobain Adfors Canada, Ltd. Methods of making smooth reinforced cementitious boards

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3687345T2 (en) * 1985-12-26 1993-07-29 Shimizu Construction Co Ltd CONCRETE REINFORCEMENT UNIT.
EP0297006B1 (en) * 1987-06-26 1992-05-13 SHIMIZU CONSTRUCTION Co. LTD. Meshwork reinforced and pre-stressed concrete member, method and apparatus for making same
DE4213839C2 (en) * 1992-04-29 2001-04-26 Hilti Ag Reinforcement of masonry components
DE19704241A1 (en) * 1997-02-05 1998-08-06 Engelbert Germar Device to reinforce floors of buildings, etc.
DE19705180C2 (en) * 1997-02-11 2003-06-12 Ispo Gmbh Armierungsgewebe
DE19711211C2 (en) * 1997-03-18 2001-05-10 Bilfinger Berger Bau Formwork element
GB2371327B (en) * 2000-12-12 2002-11-13 Intellikraft Ltd Reinforced material
GB2501541A (en) * 2012-04-28 2013-10-30 Road Solutions Ltd Reinforcing Bamboo Structure
US20140205800A1 (en) * 2013-01-23 2014-07-24 Milliken & Company Externally bonded fiber reinforced polymer strengthening system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB664492A (en) * 1946-12-27 1952-01-09 Raymond Jay Southwell Improvements in unwoven cloth
DE1759133A1 (en) * 1968-04-03 1971-06-03 Fritz Siegmeier Road surface
DE2713487A1 (en) * 1977-03-26 1978-09-28 Karner Karl Insulated hard foam panel for supporting rendering - has reinforcing fibre glass lattice mat impregnated and sheathed with synthetic resin
DE7814798U1 (en) * 1978-05-17 1978-10-05 Thumm & Co, 7440 Nuertingen BUILDING PLATE
DE2854228C2 (en) * 1978-12-15 1983-11-24 Ytong AG, 8000 München Multi-layer sheet made of aerated concrete, as well as process for their manufacture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9017495B2 (en) 2000-01-05 2015-04-28 Saint-Gobain Adfors Canada, Ltd. Methods of making smooth reinforced cementitious boards
DE102006047460A1 (en) * 2006-10-07 2008-04-10 Andreas Kufferath Gmbh & Co. Kg Reinforcing device for use with components made of castable, hardening materials, such as concrete materials, and components produced therewith

Also Published As

Publication number Publication date
EP0067237A1 (en) 1982-12-22
DE3165840D1 (en) 1984-10-11

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