EP0943589B1 - A process of laying fibre-reinforced gypsum boards with use of a joint filler adapted thereto - Google Patents

A process of laying fibre-reinforced gypsum boards with use of a joint filler adapted thereto Download PDF

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Publication number
EP0943589B1
EP0943589B1 EP98104738A EP98104738A EP0943589B1 EP 0943589 B1 EP0943589 B1 EP 0943589B1 EP 98104738 A EP98104738 A EP 98104738A EP 98104738 A EP98104738 A EP 98104738A EP 0943589 B1 EP0943589 B1 EP 0943589B1
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EP
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Prior art keywords
weight
percent
joint
edge
mixture
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Expired - Lifetime
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EP98104738A
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German (de)
French (fr)
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EP0943589A1 (en
Inventor
Winfried Dr. Spickermann
Markus Dr. Fischer
Heinz-Joachim Butz
Adolf Fiedler
Erwin Borns
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Saint Gobain Rigips GmbH
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Rigips GmbH
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Priority to EP98104738A priority Critical patent/EP0943589B1/en
Priority to DE59809485T priority patent/DE59809485D1/en
Priority to AT98104738T priority patent/ATE248786T1/en
Priority to DE29821942U priority patent/DE29821942U1/en
Priority to PCT/EP1999/001669 priority patent/WO1999047469A1/en
Priority to AU30349/99A priority patent/AU3034999A/en
Publication of EP0943589A1 publication Critical patent/EP0943589A1/en
Application granted granted Critical
Publication of EP0943589B1 publication Critical patent/EP0943589B1/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04Building 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
    • E04C2/043Building 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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/07Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/16Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of fibres or chips, e.g. bonded with synthetic resins, or with an outer layer of fibres or chips

Definitions

  • the invention relates to a method for laying Gypsum fibreboards with a special edge formation butt using a suitable joint filler.
  • Gypsum fiber boards have been known for many years. she have a higher strength compared to plasterboard and directional independence for many Stress cases. They are therefore for certain Applications more suitable than plasterboard, for what however, a higher weight compared to plasterboard Purchase must be made.
  • the known gypsum fiber boards always have one right-angled edge and must be laid at a distance become.
  • the resulting joint is made with a Filled filler, which with regard to the Tensile strength and bending tensile strength of the filled joint is of particular importance.
  • the object of the invention is a method for laying of gypsum fibreboard with a special To provide edge formation, which is a faster Lay the joint if the joint is sufficiently firm individual plates guaranteed with each other.
  • This task is solved by a procedure for Laying gypsum fiber boards with at least one of these chamfered plate edge that the chamfered edge one Bridge perpendicular to the plate surface whose height is 5 to 50% of the plate thickness, at least 1 mm, and the chamfer width at least 3 mm is, where the plates are butted and the resulting joint spaces filled with a joint filler, of 70 to 98% by weight of stucco with a particle size of ⁇ 300 ⁇ m, 0.02 to 0.5% by weight thickener, 0.2 to 1% by weight Water retention agent, 0.5 to 3% by weight polyvinyl alcohol and 0.001 to 0.1% by weight boric acid or an alkaline earth or alkali salt of boric acid, each based on the Weight of the mixture, as well as usual additives.
  • a method for easy laying of the gypsum fibreboard on butt and at desired firm bond between such plates allows.
  • EP 227 876 B1 describes plasterboard with a rounded edge and a joint filler for the joint spaces specially formed with these panels. Gypsum plasterboards are usually lighter than Gypsum fibreboards of the same thickness.
  • EP 0 094 507 A2 discloses a board wall made of plasterboard, which have a rounded edge and at least according to the Figure to be laid on butt.
  • U.S. 3,935,049 describes laminates made of plasterboard and resin-soaked Papers with rounded edges, with the edges through protected a strip of thermosetting resin are. To produce these laminates, the Starting materials pressed using heat.
  • EP 0 458 328 A1 relates to a thickener system for water-containing building material mixtures.
  • plasters, adhesives and fillers called.
  • a filler is applied Plaster base described, whose composition is essentially the of the joint filler used according to the invention.
  • EP 0 303 071 A1 relates to one Joint filler for grouting plasterboard joints.
  • the DE 43 31 141 A1 describes a joint filler which especially for filling the joints of Plasterboard is suitable.
  • the chamfer of the gypsum fibreboard must be designed in this way be that the web height of the gypsum fiber board edge 5 to 50% of the plate thickness, but at least 1 mm. is the web height is less than 5% of the panel thickness or less than 1 mm, the edge can be used during chamfering, transport or installation break off the gypsum fibreboard.
  • the jetty is much higher than 50% of the plate thickness Joint space too small and that for filling the joint usable amount of joint filler is not sufficient that to ensure the desired joint strength.
  • Multi-layer gypsum fibreboards have a core layer and at least one top layer.
  • the thickness of the Core layer can be 25 to 50% of the gypsum fiber board thickness turn off.
  • the edge should be chamfered so that the chamfer or the fiber leg straight, concave or convex is.
  • the edges can be factory or on site be chamfered with a hand tool.
  • the main ingredient is a ⁇ -hemihydrate gypsum (stucco), due to the manufacturing process, small amounts of others May contain calcium sulfates.
  • the plaster is in a lot of grout mix from 70 to 98% by weight, preferably 90 to 97% by weight.
  • a starch ether is preferably used as the thickener used. Starch ethers are particularly preferred Hydroxypropyl. These thickeners are in one Amount of 0.02 to 0.5% by weight, preferably 0.1 or 0.2 up to 0.3% by weight.
  • As a water retention agent methyl celluloses are preferably used. The Water retention agent is used in an amount of 0.2 to 1% by weight, preferably 0.5 to 0.8% by weight.
  • Dry joint filler mixture to be used according to the invention Polyvinyl alcohol and boric acid or an alkali / alkaline earth salt a boric acid. Boric acid and its salts promote the crosslinking of polyvinyl alcohol and increase the strength of the joint filler and the adhesive strength of the joint filler on the gypsum fibreboard.
  • plaster-bound joint fillers include common additives Retarders, accelerators, wetting agents and defoamers.
  • a protein retarder for example in an amount of 0.01 to 0.5% by weight.
  • the accelerator can be used in an amount of 0.1 to 1% by weight. be used, especially if it is a dihydrate accelerator.
  • a wetting agent can for example in amounts up to 0.1% by weight Defoamers are used in an amount of up to 0.2% by weight become.
  • the joint filler mineral aggregates such as Limestone powder (calcium carbonate), mica or mixtures contain individual mineral aggregates. This are preferably in an amount of up to 25% by weight in the dry joint filler mixture.
  • Blend a polyacrylamide or polymethylacrylamide add.
  • the amount of this additional thickener depends on the desired viscosity and can be up to 0.1% or more, preferably up to 0.06% by weight.
  • the viscosity and viscosity of the joint filler can be affected by Addition of fibers, in particular cellulose fibers, further to be controlled.
  • Cellulose fibers can for example the dry joint filler mixture in quantities up to 1 % By weight are added.
  • the joint filler used in the invention is dimensionally stable and elastic, so that neither crack nor Bead formation are to be expected.
  • the in the association of comparatively heavy gypsum fiber boards by external Stresses occurring through the joint added without this adversely affecting the joint effect.
  • the dry is used to fill the joint Joint filler mixture in a known manner with water stirred.
  • a relationship has proven to be practical Water / dry grout mixture of about 0.9 proved.
  • the two figures show two different ones Embodiments of the edge of the invention Gypsum fibreboard 1.
  • the chamfer 2 or fiber leg 2 can just as in Fig. 1 or convex or concave as in Fig. 2 indicated, be formed.
  • the remaining one right-angled web 3 of the edge enables laying of the gypsum fibreboard on impact.
  • the depth of the chamfer is with the angle between the imaginary extension of the web 3 and the bevel leg 2 for the joint volume and thus the The amount of joint filler that can be inserted is responsible.
  • a joint filler according to the invention is produced on the basis of the following recipe. 92% by weight Stucco, particle size ⁇ 300 ⁇ m 4.27% by weight limestone 0.5% by weight cellulose fibers 0.2% by weight starch 0.8% by weight methylcellulose 0.7% by weight Dihydrate accelerator 0.02% by weight polyacrylamide 0.01% by weight borate 1.5% by weight polyvinyl alcohol 0.01 to 0.2% by weight retarder

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Building Environments (AREA)
  • Sealing Material Composition (AREA)
  • Ceramic Products (AREA)
  • Road Paving Structures (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

The invention relates to a staff plate at least one edge of which is chamfered in such a way that the chamfered edge presents a segment extending perpendicular to the plate surface. The height of said segment is between 5 and 50 % of the plate thickness but equal to at least 1 mm and the chamfer width is at least 3 mm. A dry joint-filler mixture appropriate for this type of staff plate contains, in each case in relation to the weight of the mixture, between 70 and 98 weight % plaster of Paris with a particle size of < 300 mu m, between 0.02 and 0.5 weight % thickener, between 0.2 and 1 weight % water-retaining agent, between 0.5 and 3 weight % polyvinyl alcohol and between 0.001 and 0.1 weight % of boric acid or an alkaline-earth or alkaline salt of boric acid, as well as standard additives.

Description

Die Erfindung betrifft ein Verfahren zum Verlegen von Gipsfaserplatten mit einer besonderen Kantenausbildung auf Stoß unter Verwendung eines geeigneten Fugenfüllers.The invention relates to a method for laying Gypsum fibreboards with a special edge formation butt using a suitable joint filler.

Gipsfaserplatten sind seit vielen Jahren bekannt. Sie weisen gegenüber Gipskartonplatten eine höhere Festigkeit und eine Richtungsunabhängigkeit bei vielen Belastungsfällen auf. Sie sind deshalb für bestimmte Anwendungen besser geeignet als Gipskartonplatten, wofür jedoch gegenüber Gipskartonplatten ein höheres Gewicht in Kauf genommen werden muß.Gypsum fiber boards have been known for many years. she have a higher strength compared to plasterboard and directional independence for many Stress cases. They are therefore for certain Applications more suitable than plasterboard, for what however, a higher weight compared to plasterboard Purchase must be made.

Die bekannten Gipsfaserplatten weisen immer eine rechtwinklige Kante auf und müssen auf Abstand verlegt werden. Die dabei entstandene Fuge wird mit einem Fugenfüller verfüllt, dem im Hinblick auf die Zugfestigkeit und Biegezugfestigkeit der verfüllten Fuge besondere Bedeutung zukommt.The known gypsum fiber boards always have one right-angled edge and must be laid at a distance become. The resulting joint is made with a Filled filler, which with regard to the Tensile strength and bending tensile strength of the filled joint is of particular importance.

Nachteilig beim Einsatz bekannter Gipsfaserplatten und dafür verwendeter Fugenfüller ist, daß beim Verlegen der Platten dafür Sorge getragen werden muß, daß das Verlegen der Platten in einem bestimmten Rastermaß erfolgt und ein Abstand von etwa 5 mm zwischen den Platten konstant eingehalten wird. Bekannte Gipsfaserplatten werden also nicht auf Stoß verlegt, was das Verlegen der Platten stark vereinfachen würde. A disadvantage when using known gypsum fibreboards and joint filler used for this is that when laying the Plates must be made sure that the laying the plates are made in a certain grid dimension and a Distance of about 5 mm between the plates constant is observed. Well-known gypsum fiber boards are not laid on butt, what the laying of the panels would greatly simplify.

Aufgabe der Erfindung ist es, ein Verfahren zum Verlegen von Gipsfaserplatten mit einer besonderen Kantenausbildung bereitzustellen, welches ein schnelleres Verlegen bei ausreichend fester Fugenverbindung der einzelnen Platten untereinander gewährleistet.The object of the invention is a method for laying of gypsum fibreboard with a special To provide edge formation, which is a faster Lay the joint if the joint is sufficiently firm individual plates guaranteed with each other.

Gelöst wird diese Aufgabe durch ein Verfahren zum Verlegen von Gipsfaserplatten mit mindestens einer derart abgefasten Plattenkante, das die abgefaste Kante einen rechtwinklig zur Plattenoberfläche verlaufenden Steg aufweist, dessen Höhe 5 bis 50% der Plattendicke, mindestens aber 1 mm, und die Fasenbreite mindestens 3 mm beträgt, wobei man die Platten auf Stoß verlegt und die entstehenden Fugenräume mit einem Fugenfüller verfüllt, der 70 bis 98 Gew.% Stuckgips einer Teilchengröße von < 300 µm, 0,02 bis 0,5 Gew.% Andicker, 0,2 bis 1 Gew.% Wasserretentionsmittel, 0,5 bis 3 Gew.% Polyvinylalkohol und 0,001 bis 0,1 Gew.% Borsäure oder eines Erdalkali- oder Alkalisalzes der Borsäure, jeweils bezogen auf das Gewicht der Mischung, sowie übliche Zusatzstoffe enthält.This task is solved by a procedure for Laying gypsum fiber boards with at least one of these chamfered plate edge that the chamfered edge one Bridge perpendicular to the plate surface whose height is 5 to 50% of the plate thickness, at least 1 mm, and the chamfer width at least 3 mm is, where the plates are butted and the resulting joint spaces filled with a joint filler, of 70 to 98% by weight of stucco with a particle size of <300 µm, 0.02 to 0.5% by weight thickener, 0.2 to 1% by weight Water retention agent, 0.5 to 3% by weight polyvinyl alcohol and 0.001 to 0.1% by weight boric acid or an alkaline earth or alkali salt of boric acid, each based on the Weight of the mixture, as well as usual additives.

Erfindungsgemäß wird erstmalig ein Verfahren zum einfachen Verlegen der Gipsfaserplatten auf Stoß und bei gewünschtem festen Verbund zwischen solchen Platten ermöglicht. Darüber hinaus sind die durch Verlegen der erfindungsgemäßen Gipsfaserplatten entstandenen Fugen leichter zu verspachteln als bei Einsatz herkömmlicher Gipsfaserplatten und weisen die geforderte Fugenfestigkeit auf.According to the invention, a method for easy laying of the gypsum fibreboard on butt and at desired firm bond between such plates allows. In addition, by laying the Gypsum fiberboard joints according to the invention easier to fill than with conventional ones Gypsum fibreboard and have the required Joint strength.

Die EP 227 876 B1 beschreibt Gipskartonplatten mit einer abgerundeten Kante sowie einen Fugenfüller für die speziell mit diesen Platten gebildeten Fugenräume. Gipskartonplatten sind in der Regel leichter als Gipsfaserplatten gleicher Dicke. Die EP 0 094 507 A2 offenbart eine Plattenwand aus Gipskartonplatten, die eine abgerundete Kante aufweisen und zumindest gemäß der Figur auf Stoß verlegt werden. Die US 3 935 049 beschreibt Laminate aus Gipsplatten und harzgetränkten Papieren mit abgerundeten Kanten, wobei die Kanten durch einen Streifen eines wärmehärtbaren Harzes geschützt sind. Zur Herstellung dieser Laminate werden die Ausgangsmaterialien unter Wärmeanwendung gepreßt. Die EP 0 458 328 A1 betrifft ein Verdickersystem für wasserhaltige Baustoffgemische. Als Baustoffgemische werden beispielsweise Putze, Kleber und Spachtelmassen genannt. Unter anderem wird eine Spachtelmasse auf Gipsbasis beschrieben, deren Zusammensetzung im wesentlichen der des erfindungsgemäß verwendeten Fugenfüllers entspricht. Die EP 0 303 071 A1 betrifft einen Fugenfüller zum Verfugen von Gipskartonplatten-Fugen. Die DE 43 31 141 A1 beschreibt einen Fugenfüller, der insbesondere zum Verspachteln der Fugen von Gipskartonplatten geeignet ist.EP 227 876 B1 describes plasterboard with a rounded edge and a joint filler for the joint spaces specially formed with these panels. Gypsum plasterboards are usually lighter than Gypsum fibreboards of the same thickness. EP 0 094 507 A2 discloses a board wall made of plasterboard, which have a rounded edge and at least according to the Figure to be laid on butt. U.S. 3,935,049 describes laminates made of plasterboard and resin-soaked Papers with rounded edges, with the edges through protected a strip of thermosetting resin are. To produce these laminates, the Starting materials pressed using heat. EP 0 458 328 A1 relates to a thickener system for water-containing building material mixtures. As building material mixtures For example, plasters, adhesives and fillers called. Among other things, a filler is applied Plaster base described, whose composition is essentially the of the joint filler used according to the invention. EP 0 303 071 A1 relates to one Joint filler for grouting plasterboard joints. The DE 43 31 141 A1 describes a joint filler which especially for filling the joints of Plasterboard is suitable.

Die Fase der Gipsfaserplatten muß derart ausgebildet sein, daß die Steghöhe der Gipsfaserplattenkante 5 bis 50% der Plattendicke, mindestens aber 1 mm, beträgt. Ist die Steghöhe geringer als 5% der Plattendicke oder als 1 mm, kann die Kante beim Abfasen, Transport oder Einbau der Gipsfaserplatte abbrechen. Ist hingegen der Steg wesentlich höher als 50% der Plattendicke, wird der Fugenraum zu klein und die zum Verfüllen der Fuge einsetzbare Menge an Fugenfüller reicht nicht aus, die gewünschte Fugenfestigkeit zu gewährleisten.The chamfer of the gypsum fibreboard must be designed in this way be that the web height of the gypsum fiber board edge 5 to 50% of the plate thickness, but at least 1 mm. is the web height is less than 5% of the panel thickness or less than 1 mm, the edge can be used during chamfering, transport or installation break off the gypsum fibreboard. On the other hand is the jetty is much higher than 50% of the plate thickness Joint space too small and that for filling the joint usable amount of joint filler is not sufficient that to ensure the desired joint strength.

Erfindungsgemäß eingesetzte Gipsfaserplatten umfassen alle Arten von Gipsfaserplatten. Sie können homogen über die gesamte Dicke aufgebaut oder mehrschichtig sein. Mehrschichtige Gipsfaserplatten weisen eine Kernschicht und mindestens eine Deckschicht auf. Die Dicke der Kernschicht kann 25 bis 50% der Gipsfaserplattendicke ausmachen.Include gypsum fibreboards used according to the invention all types of gypsum fibreboard. You can homogeneously over the entire thickness can be built up or multilayered. Multi-layer gypsum fibreboards have a core layer and at least one top layer. The thickness of the Core layer can be 25 to 50% of the gypsum fiber board thickness turn off.

Die Kante sollte derart abgefast sein, daß die Fase oder der Faserschenkel gerade, konkav oder konvex ausgebildet ist. Die Kanten können werksseitig oder auf der Baustelle mit einem Handwerkszeug gefast werden.The edge should be chamfered so that the chamfer or the fiber leg straight, concave or convex is. The edges can be factory or on site be chamfered with a hand tool.

Die Bestandteile der erfindungsgemäßen trockenen Fugenfüllermischung werden anschließend erläutert. Alle Mengen- und Konzentrationsangaben beziehen sich auf das Gewicht der trockenen Mischung.The components of the dry according to the invention Joint filler mixes are explained below. All Quantities and concentrations refer to the Weight of the dry mix.

Hauptbestandteil ist ein β-Halbhydratgips (Stuckgips), der herstellungsbedingt geringe Mengen anderer Calciumsulfate enthalten kann. In der trockenen Fugenfüllermischung liegt der Stuckgips in einer Menge von 70 bis 98 Gew.%, vorzugsweise 90 bis 97 Gew.% vor. Als Andicker wird vorzugsweise ein Stärkeether eingesetzt. Besonders bevorzugte Stärkeether sind Hydroxypropylstärken. Diese Andicker werden in einer Menge von 0,02 bis 0,5 Gew.%, vorzugsweise 0,1 oder 0,2 bis 0,3 Gew.% eingesetzt. Als Wasserretentionsmittel werden vorzugsweise Methylcellulosen verwendet. Das Wasserretentionsmittel wird in einer Menge von 0,2 bis 1 Gew.%, vorzugsweise 0,5 bis 0,8 Gew.% eingesetzt.The main ingredient is a β-hemihydrate gypsum (stucco), due to the manufacturing process, small amounts of others May contain calcium sulfates. In the dry The plaster is in a lot of grout mix from 70 to 98% by weight, preferably 90 to 97% by weight. A starch ether is preferably used as the thickener used. Starch ethers are particularly preferred Hydroxypropyl. These thickeners are in one Amount of 0.02 to 0.5% by weight, preferably 0.1 or 0.2 up to 0.3% by weight. As a water retention agent methyl celluloses are preferably used. The Water retention agent is used in an amount of 0.2 to 1% by weight, preferably 0.5 to 0.8% by weight.

Als weitere wesentliche Bestandteile enthält die erfindungsgemäß zu verwendende trockene Fugenfüllermischung Polyvinylalkohol und Borsäure oder ein Alkali-/Erdalkalisalz einer Borsäure. Borsäure und deren Salze fördern die Vernetzung des Polyvinylalkohols und erhöhen die Festigkeit des Fugenfüllers und die Haftfestigkeit des Fugenfüllers an der Gipsfaserplatte. In gipsgebundenen Fugenfüllern übliche Zusätze umfassen Verzögerer, Beschleuniger, Netzmittel und Entschäumer.The contains other essential components Dry joint filler mixture to be used according to the invention Polyvinyl alcohol and boric acid or an alkali / alkaline earth salt a boric acid. Boric acid and its salts promote the crosslinking of polyvinyl alcohol and increase the strength of the joint filler and the adhesive strength of the joint filler on the gypsum fibreboard. In plaster-bound joint fillers include common additives Retarders, accelerators, wetting agents and defoamers.

Als Verzögerer kann ein Proteinverzögerer, beispielsweise in einer Menge von 0,01 bis 0,5 Gew.% eingesetzt werden. Der Beschleuniger kann in einer Menge von 0,1 bis 1 Gew.% eingesetzt werden, insbesondere wenn es sich dabei um einen Dihydratbeschleuniger handelt. Ein Netzmittel kann beispielsweise in Mengen bis zu 0,1 Gew.%, ein Entschäumer in einer Menge bis zu 0,2 Gew.% eingesetzt werden.A protein retarder, for example in an amount of 0.01 to 0.5% by weight. The accelerator can be used in an amount of 0.1 to 1% by weight. be used, especially if it is a dihydrate accelerator. A wetting agent can for example in amounts up to 0.1% by weight Defoamers are used in an amount of up to 0.2% by weight become.

Gemäß bevorzugten Ausführungsformen der Erfindung kann der Fugenfüller mineralische Zuschlagstoffe wie Kalksteinmehl (Calciumcarbonat), Glimmer oder Gemische einzelner mineralischer Zuschlagstoffe enthalten. Diese werden vorzugsweise in einer Menge von bis zu 25 Gew.% in der trockenen Fugenfüllermischung eingesetzt.According to preferred embodiments of the invention the joint filler mineral aggregates such as Limestone powder (calcium carbonate), mica or mixtures contain individual mineral aggregates. This are preferably in an amount of up to 25% by weight in the dry joint filler mixture.

Soll über die Wirkung des zuvor beschriebenen Andickers hinaus eine weitere Andickung des Fugenfüllers bewirkt werden, hat es sich als vorteilhaft erwiesen, der Mischung ein Polyacrylamid oder Polymethylacrylamid zuzusetzen. Die Menge dieses zusätzlichen Andickers hängt von der gewünschten Viskosität ab und kann bis zu 0,1% oder mehr, vorzugsweise bis zu 0,06 Gew.% betragen.Should about the effect of the previously described thickener causes a further thickening of the joint filler , it has proven to be advantageous that Blend a polyacrylamide or polymethylacrylamide add. The amount of this additional thickener depends on the desired viscosity and can be up to 0.1% or more, preferably up to 0.06% by weight.

Viskosität und Zähigkeit des Fugenfüllers können durch Zugabe von Fasern, insbesondere Cellulosefasern, weiter gesteuert werden. Cellulosefasern können beispielsweise der trockenen Fugenfüllermischung in Mengen bis zu 1 Gew.% zugesetzt werden. The viscosity and viscosity of the joint filler can be affected by Addition of fibers, in particular cellulose fibers, further to be controlled. Cellulose fibers can for example the dry joint filler mixture in quantities up to 1 % By weight are added.

Der erfindungsgemäß verwendete Fugenfüller ist maßbeständig und elastisch, so daß weder Riß- noch Wulstbildung zu erwarten sind. Die im Verbund der vergleichsweise schweren Gipsfaserplatten durch externe Belastung auftretenden Spannungen werden durch die Fuge aufgenommen, ohne daß sich dies nachteilig auf die Fuge auswirkt.The joint filler used in the invention is dimensionally stable and elastic, so that neither crack nor Bead formation are to be expected. The in the association of comparatively heavy gypsum fiber boards by external Stresses occurring through the joint added without this adversely affecting the joint effect.

Zum Verspachteln der Fuge wird die trockene Fugenfüllermischung in bekannter Weise mit Wasser verrührt. Als praxisgerecht hat sich ein Verhältnis Wasser/trockene Fugenfüllermischung von etwa 0,9 erwiesen.The dry is used to fill the joint Joint filler mixture in a known manner with water stirred. A relationship has proven to be practical Water / dry grout mixture of about 0.9 proved.

Wenn auch grundsätzlich nicht erforderlich, kann das Verfugen oder Verspachteln unter Verwendung eines Bewehrungsstreifens erfolgen, der beim Verspachteln in die Fugenmasse eingebettet wird.If not fundamentally necessary, it can Grouting or filling using a Reinforcement strip take place, the when filling in the grout is embedded.

Die beiden Figuren zeigen zwei unterschiedliche Ausgestaltungen der Kante der erfindungsgemäßen Gipsfaserplatte 1. Die Fase 2 oder Faserschenkel 2 kann gerade wie in Fig. 1 oder konvex oder konkav, wie in Fig. 2 angedeutet ausgeformt, sein. Der verbleibende rechtwinklige Steg 3 der Kante ermöglicht das Verlegen der Gipsfaserplatten auf Stoß. Die Tiefe der Fase ist mit dem Winkel zwischen gedachter Verlängerung des Stegs 3 und dem Faseschenkel 2 für das Fugenvolumen und damit die Menge des einbringbaren Fugenfüllers verantwortlich.The two figures show two different ones Embodiments of the edge of the invention Gypsum fibreboard 1. The chamfer 2 or fiber leg 2 can just as in Fig. 1 or convex or concave as in Fig. 2 indicated, be formed. The remaining one right-angled web 3 of the edge enables laying of the gypsum fibreboard on impact. The depth of the chamfer is with the angle between the imaginary extension of the web 3 and the bevel leg 2 for the joint volume and thus the The amount of joint filler that can be inserted is responsible.

Das folgende Beispiel dient der weiteren Erläuterung der Erfindung. The following example serves to further explain the Invention.

Beispiel 1example 1

Ein erfindungsgemäßer Fugenfüller wird auf der Grundlage der folgenden Rezeptur hergestellt. 92 Gew.% Stuckgips, Teilchengröße < 300 µm 4,27 Gew.% Kalksteinmehl 0,5 Gew.% Cellulosefasern 0,2 Gew.% Stärkeether 0,8 Gew.% Methylcellulose 0,7 Gew.% Dihydrat-Beschleuniger 0,02 Gew.% Polyacrylamid 0,01 Gew.% Borat 1,5 Gew.% Polyvinylalkohol 0,01 bis 0,2 Gew.% Verzögerer A joint filler according to the invention is produced on the basis of the following recipe. 92% by weight Stucco, particle size <300 µm 4.27% by weight limestone 0.5% by weight cellulose fibers 0.2% by weight starch 0.8% by weight methylcellulose 0.7% by weight Dihydrate accelerator 0.02% by weight polyacrylamide 0.01% by weight borate 1.5% by weight polyvinyl alcohol 0.01 to 0.2% by weight retarder

100 Teile dieser trockenen Pulvermischung werden mit 90 Teilen Wasser vermischt und zum Verfugen eines Fugenraums eingesetzt, der durch Verlegen zweier erfindungsgemäßer Gipsfaserplatten auf Stoß gebildet wurde. Das Verfugen erfolgte in zwei Spachtelgängen ohne Bewehrungsstreifen. Die Festigkeit der Fuge wurde bestimmt. Für die Zugfestigkeit wurde ein Wert von 136 N/cm und für die Biegezugfestigkeit 9,5 N/cm ermittelt. Die Festigkeiten wurden in Anlehnung an die DIN 18180 bestimmt.100 parts of this dry powder mixture become 90 Parts of water mixed and for grouting a joint space used by laying two inventive Gypsum fiberboard was formed on butt. The grouting was carried out in two spatulas without reinforcement strips. The strength of the joint was determined. For the Tensile strength was a value of 136 N / cm and for the Bending tensile strength 9.5 N / cm determined. The strengths were determined based on DIN 18180.

Claims (4)

  1. A method for setting plaster fiber boards wherein a least one board edge has been chamfered in such a manner that the chamfered board edge has a ridge running perpendicular to the board surface whose height is between 5 and 50% of the thickness of the board, although no less than 1 mm, and the chamfer width is at least 3 mm, characterized in that the boards are placed in contact with each other and the resulting gaps are filled with a gap-filling material containing between 70 and 98 percent by weight of stucco with a particle size of < 300 µm, between 0.02 and 0.5 percent by weight of a thickening agent, between 0.2 and 1 percent by weight of a water-retaining agent, between 0.5 and 3 percent by weight of polyvinyl alcohol, and between 0.001 and 0.1 percent by weight of boric acid or an earth alkaline or alkaline salt of boric acid, in all cases based on the weight of the mixture, as well as common additives.
  2. The method in accordance with Claim 1, characterized in that, as a thickening agent, between 0.02 and 0.5 percent by weight of starch ether, and as a water-retaining agent, between 0.2 and 1.0 percent by weight of methyl cellulose, in both cases based on the weight of the mixture, are contained.
  3. The method in accordance with Claims 1 or 2, characterized in that it additionally contains up to 0.5 percent by weight of polyacrylamide, based on the weight of the mixture, are contained.
  4. The method in accordance with one of Claims 1 through 3, characterized in that the chamfered part of the edge of the plaster fiber board is either straight, concave, or convex.
EP98104738A 1998-03-17 1998-03-17 A process of laying fibre-reinforced gypsum boards with use of a joint filler adapted thereto Expired - Lifetime EP0943589B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP98104738A EP0943589B1 (en) 1998-03-17 1998-03-17 A process of laying fibre-reinforced gypsum boards with use of a joint filler adapted thereto
DE59809485T DE59809485D1 (en) 1998-03-17 1998-03-17 Process for laying gypsum fibreboard using a joint filler adapted to this
AT98104738T ATE248786T1 (en) 1998-03-17 1998-03-17 METHOD FOR LAYING GYPSUM FIBER BOARDS USING A JOINT FILLER ADAPTED TO THEM
DE29821942U DE29821942U1 (en) 1998-03-17 1998-12-09 System made of gypsum fibreboard and joint filler adapted to it
PCT/EP1999/001669 WO1999047469A1 (en) 1998-03-17 1999-03-13 Staff plate system and appropriate joint filler
AU30349/99A AU3034999A (en) 1998-03-17 1999-03-13 Staff plate system and appropriate joint filler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98104738A EP0943589B1 (en) 1998-03-17 1998-03-17 A process of laying fibre-reinforced gypsum boards with use of a joint filler adapted thereto

Publications (2)

Publication Number Publication Date
EP0943589A1 EP0943589A1 (en) 1999-09-22
EP0943589B1 true EP0943589B1 (en) 2003-09-03

Family

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Application Number Title Priority Date Filing Date
EP98104738A Expired - Lifetime EP0943589B1 (en) 1998-03-17 1998-03-17 A process of laying fibre-reinforced gypsum boards with use of a joint filler adapted thereto

Country Status (5)

Country Link
EP (1) EP0943589B1 (en)
AT (1) ATE248786T1 (en)
AU (1) AU3034999A (en)
DE (2) DE59809485D1 (en)
WO (1) WO1999047469A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2990454B1 (en) * 2012-05-11 2014-04-25 Luca Joel De PLASTER PLATE WITH PROFILE ALLOWING RAPID IMPLEMENTATION WITHOUT PLANEITY FAULTS OF THE EQUIPMENT
BR112021010642A2 (en) 2018-12-03 2021-08-17 Armstrong World Industries, Inc. acoustic building panel, monolithic surface covering system incorporating an acoustic building panel, and methods of forming and installing the same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3935049A (en) * 1974-07-15 1976-01-27 Ashland Oil, Inc. Method of covering a substrate by overidge bonding of a covering material about the edges of the substrate
DE3218397C2 (en) * 1982-05-15 1985-07-18 Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen Panel wall with filled out joint
DE3542262A1 (en) * 1985-11-29 1987-06-04 Rigips Gmbh EDGE TRAINING AND JOINT FILLER FOR FILLING A JOINT formed by the collision of two such edges
DE3726470A1 (en) * 1987-08-08 1989-02-16 Rigips Gmbh JOINT FILLER
DE4016979A1 (en) * 1990-05-25 1991-11-28 Hoechst Ag THICKENER SYSTEM FOR WATER-CONTAINING MIXTURES
DE4331141C2 (en) * 1993-09-14 1999-09-23 Rigips Gmbh Joint filler

Also Published As

Publication number Publication date
AU3034999A (en) 1999-10-11
WO1999047469A1 (en) 1999-09-23
EP0943589A1 (en) 1999-09-22
ATE248786T1 (en) 2003-09-15
DE29821942U1 (en) 1999-02-18
DE59809485D1 (en) 2003-10-09

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