EP2143854B1 - Elongation splice strips for screed floors - Google Patents

Elongation splice strips for screed floors Download PDF

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Publication number
EP2143854B1
EP2143854B1 EP08012249.2A EP08012249A EP2143854B1 EP 2143854 B1 EP2143854 B1 EP 2143854B1 EP 08012249 A EP08012249 A EP 08012249A EP 2143854 B1 EP2143854 B1 EP 2143854B1
Authority
EP
European Patent Office
Prior art keywords
layer
expansion joint
joint strip
top layer
strip according
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.)
Not-in-force
Application number
EP08012249.2A
Other languages
German (de)
French (fr)
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EP2143854A1 (en
Inventor
Jürgen Quittmann
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.)
Quithell Kunststofftechnik GmbH
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Quithell Kunststofftechnik GmbH
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Publication date
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Priority to PL08012249T priority Critical patent/PL2143854T3/en
Priority to EP08012249.2A priority patent/EP2143854B1/en
Publication of EP2143854A1 publication Critical patent/EP2143854A1/en
Application granted granted Critical
Publication of EP2143854B1 publication Critical patent/EP2143854B1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
    • E04F15/14—Construction of joints, e.g. dividing strips
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/188—Edge insulation strips, e.g. for floor screed layers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
    • E04F15/203—Separately-laid layers for sound insulation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F19/00—Other details of constructional parts for finishing work on buildings
    • E04F19/02—Borders; Finishing strips, e.g. beadings; Light coves
    • E04F19/04—Borders; Finishing strips, e.g. beadings; Light coves for use between floor or ceiling and wall, e.g. skirtings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F19/00—Other details of constructional parts for finishing work on buildings
    • E04F19/02—Borders; Finishing strips, e.g. beadings; Light coves
    • E04F19/04—Borders; Finishing strips, e.g. beadings; Light coves for use between floor or ceiling and wall, e.g. skirtings
    • E04F2019/0404—Borders; Finishing strips, e.g. beadings; Light coves for use between floor or ceiling and wall, e.g. skirtings characterised by the material
    • E04F2019/0422—Borders; Finishing strips, e.g. beadings; Light coves for use between floor or ceiling and wall, e.g. skirtings characterised by the material of organic plastics with or without reinforcements or filling materials

Definitions

  • the invention relates to an expansion joint strip for screed floors, with an upstanding leg having at least one layer of foam plastic and at least on one side an air-permeable but waterproof cover layer, which is extended to an angled foot.
  • Such expansion joints strips are placed when casting screed floors on a base so that they form an expansion joint in the screed layer or at the edge, which can compensate for thermal expansion of the screed.
  • edge insulation strips When arranged at the edge of the screed expansion joints strips that abut with their upstanding legs on an adjacent wall, it is also called edge insulation strips. These also serve to prevent the formation of sound and thermal bridges.
  • DE 297 04 323 U1 describes a sealing sheet or a sealing tape as a connecting element in the construction industry, which has a water-impermeable intermediate layer, which is covered on one or both sides with a fleece.
  • the water-impermeable intermediate layer is diffusible and permeable to water vapor and may be, for example, a film.
  • nonwoven fibers of polyester, polyamides, polyethylene and polypropylene are described as suitable.
  • DE 198 23 419 A1 relates to an intermediate rafters insulation system with an insulation in the form of a roll-up, laminated with a bilaterally edge-overlapping, air-barrier film laminated open cell insulation in rafter thickness.
  • a watertight, but water-vapor-permeable film (roof underlayment) is laminated onto the insulating layer.
  • the roof underlay has outwardly facing a fleece made of polyethylene, polypropylene or the like, which is permeable to water and water vapor.
  • the membrane is followed on the inside by a membrane which is water-impermeable but permeable to water vapor.
  • the membrane may be formed from a sponged polypropylene microspun nonwoven (meltblown nonwoven).
  • the sealing strip has as carrier material a sealing film made of vapor-permeable plastic fleece, for example polyurethane, polyacrylate, polyester or polypropylene fleece.
  • the sealing foil carries adhesive layers on its surfaces.
  • the object of the invention is to provide an expansion joint strip which adheres better to adjacent materials.
  • the cover layer is a nonwoven fabric of thermally bonded plastic fibers, wherein the cover layer is waterproof or at least on the outside has a water-impermeable skin.
  • the nonwoven forms a bonding bridge, which ensures better bonding of the expansion joint strip to other materials, in particular so-called remedial screeds, fillers and the like.
  • the upstanding leg can be fixed in the flat state so that any production or storage-related pre-curvature is largely eliminated.
  • the extended and angled to one foot part of the top layer is based on the example of a thermal insulation formed backing and has, with a RanddämmstMail, due to its elastic properties tends to pivot the wall attachment leg always against the wall and bias, so that a safe Installation of the wall attachment leg guaranteed on the wall. With exposed expansion joint strips with feet on both sides, this bias keeps the upright leg stable in position.
  • Both the cover layer and the foam plastic layer may consist, for example, of polyethylene or polypropylene. The use of the same plastics enables a sorted disposal.
  • the top layer is permeable to air, but is compacted on the surface so that it forms a water-impermeable skin.
  • the foot formed by the extended cover layer can then be bonded with an air-tight and watertight film, which forms a base for the liquid screed. So you get a waterproof "tub" for the liquid screed.
  • the cover layer is permeable to air, so that air can escape to the outside, if air bubbles that have formed under the film are struck towards the edge.
  • the in FIG. 1 shown expansion joint strip serves as RanddämmstMail and has an upstanding leg 10 (Wandstromschenkel) and a right angle thereof angled foot 12.
  • the leg 10 has an approximately 0.5 -1 cm thick layer 14 of relatively coarse-cell polyethylene foam.
  • an approximately 0.3 to 1 mm thick cover layer 16 is laminated, which consists of an air-permeable but waterproof and tear-resistant web of thermobonded plastic fibers, preferably also made of polyethylene.
  • the topsheet 16 forms the angled foot 12 (FIG. Fig. 2 ) and is at least on the outer or upper side so compressed that there is a waterproof, in the example shown slightly grained skin is formed.
  • the covering layer formed by the fleece therefore has a relatively high rigidity.
  • FIGS. 3 and 4 show analogously to Figures 1 and 2 a freely erected expansion joint strip, the same structure as the edge insulation strip after Fig. 1 and 2 has, only with the difference that cover layers 16, 18 and feet 12 are provided from the fleece on both sides.
  • the cover layers 16, 18 are not quite as high as the middle layer 14 in this example, so that they can be cut off more easily.
  • FIG. 5 shows a portion of the layer 14 in its natural state before laminating the cover layers. It can be seen that this layer is curved both in cross-section and in the longitudinal direction. The corresponding curves are labeled R1 and R2. If the layer 14 is laminated in the planar state with at least one of the cover layers 16, 18, these curvatures are eliminated.
  • FIG. 6 shows in a horizontal section the formation of an inner corner.
  • the foot 12 is cut at the inner corner, so that when bending the two separate sections of the foot lie flat over each other.
  • the layer 14 is laminated on both sides with the cover layers 16, 18, but the flexibility of the wall attachment leg was increased by the cover layer 18 and a portion of the layer 14 were cut by means of an incision 22 so that they at the kink can diverge.
  • FIG. 7 shows an example of a RanddämmstMails with a glued to the foot 12 slide 24.
  • the layer 14 is based on a wall 26 and stands with its lower edge on a footfall sound insulation 28, which is laid on a formed for example by concrete bottom surface 30.
  • the film 24 forms on the impact sound insulation a waterproof base for the liquid screed.
  • the bottom surface 30 has small bumps, or there are still small pebbles 34 on the ground, which can then lead to a tipping of the impact sound insulation 28, as a comparison of FIGS. 7 and 8 shows. If now film 24 is loaded near the edge, so that the impact sound insulation 28 in the in FIG. 8 shown position tilts and / or slightly compressed, it should be avoided that the leg 10 pivots away from the wall 26 and an undesirable cavity between the wall 26 on the one hand and the leg 10 is formed.
  • the cover layer 16 forms a water-impermeable skin, which is glued tightly to the film 24. Because the top layer is permeable to air, the air can escape from the air bubbles 32 to the wall 26 towards.
  • cover layer 16 is elastic at the bend between wall attachment leg and foot and has a tendency to pivot the wall attachment legs so that it always rests against the wall 26 under tension. If now the impact sound insulation 28 in the in FIG. 8 shown yields, so the leg 10 lowers at best somewhat, but is still biased by the force generated by the top layer 16 force F against the wall 26. Thus, the emergence of unwanted cavities can be effectively avoided.
  • a double-sided adhesive tape 36 is indicated, which serves to glue the foot 12 with the impact sound insulation 28.
  • the double-sided adhesive tape 36 is covered by a peelable protective strip.
  • a corresponding double-sided adhesive tape may also be provided at the top of the foot 20 to bond the foot to the film 24.
  • the leg 10 may also be additionally stiffened by reinforcing layers, for example by web plates, such as DE 10 2005 045 278 A1 is known, or by multi-layer plastic films with corrugated cardboard structure, such as EP 1 710 370 A1 is known.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)

Description

Die Erfindung betrifft einen Dehnungsfugenstreifen für Estrichböden, mit einem aufragenden Schenkel, der mindestens eine Schicht aus Schaumkunststoff und mindestens auf einer Seite eine luftdurchlässige aber wasserfeste Decklage aufweist, die zu einem abgewinkelten Fuß verlängert ist.The invention relates to an expansion joint strip for screed floors, with an upstanding leg having at least one layer of foam plastic and at least on one side an air-permeable but waterproof cover layer, which is extended to an angled foot.

Solche Dehnungsfugenstreifen werden beim Gießen von Estrichböden so auf einer Unterlage aufgestellt, daß sie in der Estrichschicht oder an deren Rand eine Dehnungsfuge bilden, die Wärmeausdehnungen des Estrichs ausgleichen kann. Bei am Rand der Estrichschicht angeordneten Dehnungsfugenstreifen, die mit ihrem aufragenden Schenkel an einer angrenzenden Wand anliegen, spricht man auch von Randdämmstreifen. Diese dienen zugleich dazu, die Entstehung von Schall- und Wärmebrücken zu verhindern.Such expansion joints strips are placed when casting screed floors on a base so that they form an expansion joint in the screed layer or at the edge, which can compensate for thermal expansion of the screed. When arranged at the edge of the screed expansion joints strips that abut with their upstanding legs on an adjacent wall, it is also called edge insulation strips. These also serve to prevent the formation of sound and thermal bridges.

Aus DE 20 2005 016 222 U1 ist ein Randdämmstreifen dieser Art bekannt, bei dem die Decklage aus dichterem Schaumkunststoff besteht, mit allen Merkmalen des Oberbegriffs von Anspruch 1.Out DE 20 2005 016 222 U1 is a Randdämmstreifen this type is known in which the top layer of denser foam plastic, with all the features of the preamble of claim 1.

DE 10 2004 054 099 A1 beschreibt ein Dämmsystem zur Trittschalldämmung mit einem Randdämmstreifen, der eine Schaumlage, eine Vlieslage, eine Schutzfolie und ein reißfestes Gittergewebe aufweist, wobei die Vlieslage, die Schutzfolie und das Gittergewebe sich in den Bereich eines Klebestreifens erstrecken, mit dem der Randdämmstreifen auf die Oberseite des Fußbodenaufbaus aufgeklebt wird. DE 10 2004 054 099 A1 describes an insulation system for footfall sound insulation with a Randdämmstreifen having a foam layer, a nonwoven layer, a protective film and a tear-resistant mesh fabric, wherein the nonwoven layer, the protective film and the mesh fabric extending in the region of an adhesive strip, with the edge insulation strip on top of the floor structure is glued on.

DE 297 04 323 U1 beschreibt eine Dichtbahn oder ein Dichtband als Verbindungselement im Baugewerbe, das eine wasserundurchlässige Zwischenschicht aufweist, die auf einer oder beiden Seiten mit einem Vlies belegt ist. Die wasserundurchlässige Zwischenschicht ist diffusionsfähig und wasserdampfdurchlässig und kann beispielsweise eine Folie sein. Für das Vlies werden Fasern aus Polyester, Polyamiden, Polyethylen und Polypropylen als geeignet beschrieben. DE 297 04 323 U1 describes a sealing sheet or a sealing tape as a connecting element in the construction industry, which has a water-impermeable intermediate layer, which is covered on one or both sides with a fleece. The water-impermeable intermediate layer is diffusible and permeable to water vapor and may be, for example, a film. For the nonwoven fibers of polyester, polyamides, polyethylene and polypropylene are described as suitable.

DE 198 23 419 A1 betrifft ein Zwischen-Sparren-Dämmsystem mit einer Dämmung in Form einer aufrollbaren, mit einer beidseitig randüberstehenden, luftsperrenden Folie kaschierten offenporigen Dämmschicht in Sparrenstärke. Auf einer Seite ist auf die Dämmschicht eine wasserdichte, aber wasserdampfdurchlässige Folie (Dachunterspannbahn) aufkaschiert. Die Dachunterspannbahn besitzt nach außen weisend ein Vlies aus Polyethylen, Polypropylen oder dergleichen, welches wasser- und wasserdampfdurchlässig ist. An das Vlies schließt sich innenseitig eine Membran an, die wasser-undurchlässig aber wasserdampfdurchlässig ist. Die Membran kann aus einem verhauteten Polypropylen-Mikrospinnvlies (Meltblown-Vlies) ausgebildet sein. DE 198 23 419 A1 relates to an intermediate rafters insulation system with an insulation in the form of a roll-up, laminated with a bilaterally edge-overlapping, air-barrier film laminated open cell insulation in rafter thickness. On one side, a watertight, but water-vapor-permeable film (roof underlayment) is laminated onto the insulating layer. The roof underlay has outwardly facing a fleece made of polyethylene, polypropylene or the like, which is permeable to water and water vapor. The membrane is followed on the inside by a membrane which is water-impermeable but permeable to water vapor. The membrane may be formed from a sponged polypropylene microspun nonwoven (meltblown nonwoven).

DE 102 55 598 A1 beschreibt ein selbstklebendes Dichtungsband zum Abdichten von Fenster- oder Türstöcken gegen Wandflächen eines Gebäudes. Das Dichtungsband hat als Trägermaterial eine Dichtfolie aus dampfdiffusionsoffenem Kunststoffvlies, beispielsweise Polyurethan-, Polyacrylat-, Polyester- oder Polypropylenvlies. Die Dichtfolie trägt auf ihren Oberflächen Klebeschichten. DE 102 55 598 A1 describes a self-adhesive sealing tape for sealing window or door sills against wall surfaces of a building. The sealing strip has as carrier material a sealing film made of vapor-permeable plastic fleece, for example polyurethane, polyacrylate, polyester or polypropylene fleece. The sealing foil carries adhesive layers on its surfaces.

Aufgabe der Erfindung ist es, einen Dehnungsfugenstreifen zu schaffen, der besser an angrenzenden Materialien haftet.The object of the invention is to provide an expansion joint strip which adheres better to adjacent materials.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Decklage ein Vlies aus thermisch gebundenen Kunststoffasern ist, wobei die Decklage wasserdicht ist oder zumindest auf der Außenseite eine wasserundurchlässige Haut aufweist.This object is achieved in that the cover layer is a nonwoven fabric of thermally bonded plastic fibers, wherein the cover layer is waterproof or at least on the outside has a water-impermeable skin.

Das Vlies bildet eine Haftbrücke, die für eine bessere Bindung des Dehnungsfugenstreifens an andere Materialien sorgt, insbesondere an sogenannte Sanierungsestriche, Spachtelmassen und dergleichen.The nonwoven forms a bonding bridge, which ensures better bonding of the expansion joint strip to other materials, in particular so-called remedial screeds, fillers and the like.

Dadurch, daß der Schaumkunststoff im flachen Zustand mit dem Vlies kaschiert wird, läßt sich der aufragende Schenkel im flachen Zustand so fixieren, daß eine etwaige herstellungs- oder lagerungsbedingte Vorkrümmung weitgehend eliminiert wird. Man erhält so eine ebene, brettartige Struktur, die sich sauber aufstellen bzw. an die Wand anlegen läßt. Der verlängerte und zu einem Fuß abgewinkelte Teil der Decklage stützt sich auf der beispielsweise durch eine Wärmedämmung gebildeten Unterlage ab und hat, bei einem Randdämmstreifen, aufgrund seiner elastischen Eigenschaften die Tendenz, den Wandanlageschenkel stets gegen die Wand zu verschwenken und vorzuspannen, so daß eine sichere Anlage des Wandanlageschenkels an der Wand gewährleistet ist. Bei frei aufgestellten Dehnungsfugenstreifen mit Füßen auf beiden Seiten hält diese Vorspannung den aufragenden Schenkel stabil in seiner Position.Characterized in that the foam plastic is laminated in the flat state with the fleece, the upstanding leg can be fixed in the flat state so that any production or storage-related pre-curvature is largely eliminated. This gives a flat, board-like structure that can be set up clean or put on the wall. The extended and angled to one foot part of the top layer is based on the example of a thermal insulation formed backing and has, with a Randdämmstreifen, due to its elastic properties tends to pivot the wall attachment leg always against the wall and bias, so that a safe Installation of the wall attachment leg guaranteed on the wall. With exposed expansion joint strips with feet on both sides, this bias keeps the upright leg stable in position.

Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.Advantageous embodiments and modifications of the invention will become apparent from the dependent claims.

Sowohl die Decklage als auch die Schaumkunststoffschicht können beispielsweise aus Polyethylen- oder Polypropylen bestehen. Die Verwendung gleicher Kunststoffe ermöglicht eine sortenreine Entsorgung.Both the cover layer and the foam plastic layer may consist, for example, of polyethylene or polypropylene. The use of the same plastics enables a sorted disposal.

Die Decklage ist luftdurchlässig, ist jedoch an der Oberfläche so verdichtet, daß sie eine wasserundurchlässige Haut bildet. Der durch die verlängerte Decklage gebildete Fuß läßt sich dann mit einer luft- und wasserdichten Folie verkleben, die eine Unterlage für den Fließestrich bildet. So erhält man eine wasserdichte "Wanne" für den Fließestrich. Besonders vorteilhaft ist dabei, daß die Decklage luftdurchlässig ist, so daß Luft nach außen entweichen kann, wenn Luftblasen, die sich unter der Folie gebildet haben, zum Rand hin ausgestrichen werden.The top layer is permeable to air, but is compacted on the surface so that it forms a water-impermeable skin. The foot formed by the extended cover layer can then be bonded with an air-tight and watertight film, which forms a base for the liquid screed. So you get a waterproof "tub" for the liquid screed. It is particularly advantageous that the cover layer is permeable to air, so that air can escape to the outside, if air bubbles that have formed under the film are struck towards the edge.

Im folgenden werden Ausführungsbeispiele der Erfindung anhand der Zeichnung näher erläutert.In the following, embodiments of the invention will be explained in more detail with reference to the drawing.

Es zeigen:

Fig. 1
einen horizontalen Schnitt durch einen Randdämmstreifen;
Fig. 2
einen vertikalen Schnitt durch den Randdämmstreifen nach Figur 2;
Fig. 3
einen horizontalen Schnitt durch einen frei aufgestellten Dehnungsfugenstreifen;
Fig. 4
einen vertikalen Schnitt durch den Dehnungsfugenstreifen nach Figur 3;
Fig. 5
eine perspektivische Ansicht eines Abschnitts einer Schaumkunststoffschicht, zur Illustration der intrinsischen Krümmung einer solchen Schicht;
Fig. 6
einen horizontalen Schnitt durch eine mit dem Randdämmstreifen nach Figuren 1 und 2 gebildete Innenecke; und
Fig. 7 und 8
Schnittdarstellungen eines Randdämmstreifens gemäß der Erfindung in verschiedenen Einbausituationen.
Show it:
Fig. 1
a horizontal section through a Randdämmstreifen;
Fig. 2
a vertical section through the Randdämmstreifen after FIG. 2 ;
Fig. 3
a horizontal section through a freely erected expansion joint strip;
Fig. 4
a vertical section through the expansion joint strip of Figure 3;
Fig. 5
a perspective view of a portion of a foam plastic layer, illustrating the intrinsic curvature of such a layer;
Fig. 6
a horizontal section through one with the Randdämmstreifen after Figures 1 and 2 formed inner corner; and
FIGS. 7 and 8
Sectional views of a Randdämmstreifens according to the invention in different installation situations.

Der in Figur 1 gezeigte Dehnungsfugenstreifen dient als Randdämmstreifen und weist einen aufragenden Schenkel 10 (Wandanlageschenkel) und einen rechtwinklig davon abgewinkelten Fuß 12 auf. Der Schenkel 10 hat eine etwa 0,5 -1 cm dicke Schicht 14 aus relativ grobzelligem Polyethylenschaum. Auf einer Seite ist eine etwa 0,3 bis 1 mm dicke Decklage 16 aufkaschiert, die aus einem luftdurchlässigen aber wasserfesten und reißfesten Vlies aus thermisch gebundenen (thermobonded) Kunststoffasern besteht, vorzugsweise ebenfalls aus Polyethylen. Die Decklage 16 bildet den abgewinkelten Fuß 12 (Fig. 2) und ist zumindest auf der Außen- bzw. Oberseite so verdichtet, daß dort eine wasserdichte, im gezeigten Beispiel etwas genarbte Haut gebildet wird. Die durch das Vlies gebildete Deckschicht hat daher eine relativ große Steifigkeit.The in FIG. 1 shown expansion joint strip serves as Randdämmstreifen and has an upstanding leg 10 (Wandanlageschenkel) and a right angle thereof angled foot 12. The leg 10 has an approximately 0.5 -1 cm thick layer 14 of relatively coarse-cell polyethylene foam. On one side, an approximately 0.3 to 1 mm thick cover layer 16 is laminated, which consists of an air-permeable but waterproof and tear-resistant web of thermobonded plastic fibers, preferably also made of polyethylene. The topsheet 16 forms the angled foot 12 (FIG. Fig. 2 ) and is at least on the outer or upper side so compressed that there is a waterproof, in the example shown slightly grained skin is formed. The covering layer formed by the fleece therefore has a relatively high rigidity.

Weiterhin ist in Figur 2 zu erkennen, daß der Schenkel 10 in der Nähe seines oberen Randes durch mehrere randparallele, von der Rückseite her eingebrachte Einschnitte 20 vorgeschwächt ist, die die Decklage 16 und einen Teil Schicht 14 durchtrennen. Dies ermöglicht es, nach dem Abbinden des Estrichs die überstehenden Teile des Schenkels 10 einfach zu entfernen, indem die verbleibende Materialbrücke der Schicht 14 in Höhe der jeweils gewünschten Vorschwächungslinie abgerissen wird.Furthermore, in FIG. 2 to recognize that the leg 10 is vorwächt near its upper edge by a plurality of edge-parallel, introduced from the back incisions 20 which sever the cover layer 16 and a portion of layer 14. This makes it possible to easily remove after setting of the screed, the protruding parts of the leg 10 by the remaining material bridge of the layer 14 is demolished at the level of each desired Vorschwächungslinie.

Figuren 3 und 4 zeigen analog zu Figuren 1 und 2 einen frei aufgestellten Dehnungsfugenstreifen, der den gleichen Aufbau wie der Randdämmstreifen nach Fig. 1 und 2 hat, nur mit dem Unterschied, daß Decklagen 16, 18 und Füße 12 aus dem Vlies auf beiden Seiten vorgesehen sind. Die Decklagen 16, 18 reichen in diesem Beispiel nicht ganz so hoch wie die mittlere Schicht 14, so daß diese sich leichter abschneiden läßt. FIGS. 3 and 4 show analogously to Figures 1 and 2 a freely erected expansion joint strip, the same structure as the edge insulation strip after Fig. 1 and 2 has, only with the difference that cover layers 16, 18 and feet 12 are provided from the fleece on both sides. The cover layers 16, 18 are not quite as high as the middle layer 14 in this example, so that they can be cut off more easily.

Figur 5 zeigt einen Abschnitt der Schicht 14 in ihrem natürlichen Zustand vor dem Aufkaschieren der Decklagen. Man erkennt, daß diese Schicht sowohl im Querschnitt als auch in Längsrichtung gekrümmt ist. Die entsprechenden Krümmungen sind mit R1 und R2 bezeichnet. Wenn die Schicht 14 im ebenen Zustand mit wenigstens einer der Decklagen 16, 18 kaschiert wird, werden diese Krümmungen beseitigt. FIG. 5 shows a portion of the layer 14 in its natural state before laminating the cover layers. It can be seen that this layer is curved both in cross-section and in the longitudinal direction. The corresponding curves are labeled R1 and R2. If the layer 14 is laminated in the planar state with at least one of the cover layers 16, 18, these curvatures are eliminated.

Figur 6 zeigt in einem horizontalen Schnitt die Ausbildung einer Innenecke. Der Fuß 12 wird an der Innenecke eingeschnitten, so daß sich beim Abwinkeln die beiden getrennten Abschnitte des Fußes flach übereinanderlegen. In dem in Figur 6 gezeigten Beispiel ist die Schicht 14 auf beiden Seiten mit den Decklagen 16, 18 kaschiert, doch wurde die Flexibilität des Wandanlageschenkels dadurch erhöht, daß die Decklage 18 und ein Teil der Schicht 14 mit Hilfe eines Einschnittes 22 durchtrennt wurden, so daß sie an der Knickstelle auseinanderklaffen können. FIG. 6 shows in a horizontal section the formation of an inner corner. The foot 12 is cut at the inner corner, so that when bending the two separate sections of the foot lie flat over each other. In the in FIG. 6 As shown, the layer 14 is laminated on both sides with the cover layers 16, 18, but the flexibility of the wall attachment leg was increased by the cover layer 18 and a portion of the layer 14 were cut by means of an incision 22 so that they at the kink can diverge.

Figur 7 zeigt ein Beispiel eines Randdämmstreifens mit einer an den Fuß 12 angeklebten Folie 24. Die Schicht 14 lehnt sich an eine Wand 26 an und steht mit ihrem unteren Rand auf einer Trittschalldämmung 28 auf, die auf einer beispielsweise durch Beton gebildeten Bodenfläche 30 verlegt ist. Die Folie 24 bildet auf der Trittschalldämmung eine wasserdichte Unterlage für den Fließestrich. FIG. 7 shows an example of a Randdämmstreifens with a glued to the foot 12 slide 24. The layer 14 is based on a wall 26 and stands with its lower edge on a footfall sound insulation 28, which is laid on a formed for example by concrete bottom surface 30. The film 24 forms on the impact sound insulation a waterproof base for the liquid screed.

Beim Verlegen der Folie 24 kommt es leicht zur Bildung von Luftblasen 32, die dann, wenn sie nicht entfernt werden, zu unerwünschten Hohlräumen unter dem Estrichboden führen.When laying the film 24, it is easy to form air bubbles 32, which then, if they are not removed, lead to unwanted cavities under the screed floor.

Häufig weist auch die Bodenfläche 30 kleine Unebenheiten auf, oder es liegen noch kleine Steinchen 34 auf dem Boden, die dann zu einem Kippeln der Trittschalldämmung 28 führen können, wie ein Vergleich der Figuren 7 und 8 zeigt. Wenn nun Folie 24 in Randnähe belastet wird, so daß die Trittschalldämmung 28 in die in Figur 8 gezeigte Position kippt und/oder etwas komprimiert wird, so sollte vermieden werden, daß der Schenkel 10 von der Wand 26 weg schwenkt und ein unerwünschter Hohlraum zwischen der Wand 26 einerseits und dem Schenkel 10 entsteht.Often, the bottom surface 30 has small bumps, or there are still small pebbles 34 on the ground, which can then lead to a tipping of the impact sound insulation 28, as a comparison of FIGS. 7 and 8 shows. If now film 24 is loaded near the edge, so that the impact sound insulation 28 in the in FIG. 8 shown position tilts and / or slightly compressed, it should be avoided that the leg 10 pivots away from the wall 26 and an undesirable cavity between the wall 26 on the one hand and the leg 10 is formed.

Mit dem erfindungsgemäßen Randdämmstreifen lassen sich diese Probleme auf elegante Weise vermeiden. Bei diesem Randdämmstreifen bildet die Decklage 16 eine wasserundurchlässige Haut, die dicht mit der Folie 24 verklebt wird. Da die Decklage luftdurchlässig ist, kann die Luft aus den Luftblasen 32 zur Wand 26 hin entweichen.With the edge insulation strips according to the invention, these problems can be avoided in an elegant manner. In this edge insulation strip, the cover layer 16 forms a water-impermeable skin, which is glued tightly to the film 24. Because the top layer is permeable to air, the air can escape from the air bubbles 32 to the wall 26 towards.

Im Hinblick auf die Instabilität der Trittschalldämmung 28 erweist es sich außerdem als sehr vorteilhaft, daß Decklage 16 an der Knickstelle zwischen Wandanlageschenkel und Fuß elastisch ist und die Tendenz hat, den Wandanlageschenkel so zu verschwenken, daß er stets unter Spannung an der Wand 26 anliegt. Wenn nun die Trittschalldämmung 28 in der in Figur 8 gezeigten Weise nachgibt, so senkt sich der Schenkel 10 allenfalls etwas ab, wird jedoch durch die von der Decklage 16 erzeugte Kraft F auch weiterhin gegen die Wand 26 vorgespannt. So läßt sich die Entstehung unerwünschter Hohlräume wirksam vermeiden.In view of the instability of the impact sound insulation 28, it proves to be also very advantageous that cover layer 16 is elastic at the bend between wall attachment leg and foot and has a tendency to pivot the wall attachment legs so that it always rests against the wall 26 under tension. If now the impact sound insulation 28 in the in FIG. 8 shown yields, so the leg 10 lowers at best somewhat, but is still biased by the force generated by the top layer 16 force F against the wall 26. Thus, the emergence of unwanted cavities can be effectively avoided.

In Figuren 7 und 8 ist außerdem ein doppelseitiges Klebeband 36 angedeutet, das dazu dient, den Fuß 12 mit der Trittschalldämmung 28 zu verkleben. Im Anlieferungszustand ist das doppelseitige Klebeband 36 durch einen abziehbaren Schutzstreifen abgedeckt. Ein entsprechendes doppelseitiges Klebeband kann auch an der Oberseite des Fußes 20 vorgesehen sein, um den Fuß mit der Folie 24 zu verkleben.In FIGS. 7 and 8 In addition, a double-sided adhesive tape 36 is indicated, which serves to glue the foot 12 with the impact sound insulation 28. In the delivery state, the double-sided adhesive tape 36 is covered by a peelable protective strip. A corresponding double-sided adhesive tape may also be provided at the top of the foot 20 to bond the foot to the film 24.

In modifizierten, nicht gezeigten Ausführungsformen kann der Schenkel 10 auch zusätzlich durch Verstärkungsschichten versteift sein, beispielsweise durch Stegplatten, wie aus DE 10 2005 045 278 A1 bekannt ist, oder durch Mehrschicht-Kunststoffolien mit Wellpappstruktur, wie aus EP 1 710 370 A1 bekannt ist.In modified, not shown embodiments, the leg 10 may also be additionally stiffened by reinforcing layers, for example by web plates, such as DE 10 2005 045 278 A1 is known, or by multi-layer plastic films with corrugated cardboard structure, such as EP 1 710 370 A1 is known.

Claims (6)

  1. Expansion joint strip for screed floors, having an upright wing (10) which comprises at least one layer (14) of foam plastic and, at least on one side, a top layer (16, 18) that is permeable to air but waterproofed and that is extended to form an angled base (12), wherein the top layer (16, 18) is watertight or at least comprises a skin on its outer side that is impermeable to water, characterized in that the top layer (16, 18) is a non-woven fabric of thermo-bonded plastic fibers.
  2. Expansion joint strip according to claim 1, characterized in that all layers (14, 16, 18) of the upright wing (10) consist of a same material, for example, polyethylene.
  3. Expansion joint strip according to any one of the preceding claims, characterized in that the base (12) is tightly joined to the margin of a foil underlay (24) for the floor screed layer at the top side of the base.
  4. Expansion joint strip according to any one of the preceding claims, characterized in that the base (12) comprises a double-sided adhesive tape (38) on its top side and/or on its bottom side.
  5. Expansion joint strip according to any one of the preceding claims, characterized in that the top layer (16, 18) has a grained surface.
  6. Expansion joint strip according to any one of the preceding claims, characterized in that the top layer (16, 18) is compacted at least on the outer side thereof, such that the watertight skin is formed there.
EP08012249.2A 2008-07-07 2008-07-07 Elongation splice strips for screed floors Not-in-force EP2143854B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL08012249T PL2143854T3 (en) 2008-07-07 2008-07-07 Elongation splice strips for screed floors
EP08012249.2A EP2143854B1 (en) 2008-07-07 2008-07-07 Elongation splice strips for screed floors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08012249.2A EP2143854B1 (en) 2008-07-07 2008-07-07 Elongation splice strips for screed floors

Publications (2)

Publication Number Publication Date
EP2143854A1 EP2143854A1 (en) 2010-01-13
EP2143854B1 true EP2143854B1 (en) 2015-11-18

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ID=40229841

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08012249.2A Not-in-force EP2143854B1 (en) 2008-07-07 2008-07-07 Elongation splice strips for screed floors

Country Status (2)

Country Link
EP (1) EP2143854B1 (en)
PL (1) PL2143854T3 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29704323U1 (en) * 1997-02-26 1997-05-15 Textec Construct GmbH Technische Textilien und Werkstoffe, 16321 Lindenberg Sealing tape / sealing membrane as a connecting element in the construction industry
DE19823419A1 (en) * 1998-05-26 1999-12-02 Kloeber Johannes Intermediate rafter insulation system
DE10255598A1 (en) * 2001-12-21 2003-07-03 Schmid Baukunststoffe Gmbh Adhesive strip for sealing window or door jambs against surfaces of wall openings comprises a sealing foil carrying adhesive layers on its surface
DE202007007828U1 (en) * 2007-06-02 2008-10-09 Quithell Kunststofftechnik Gmbh Expansion joint strip for screed floors
EP2065534A1 (en) * 2007-11-30 2009-06-03 Fiberweb Berlin GmbH Construction material comprising a long-term UV stabilised, multilayered material

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1024235B1 (en) * 1999-01-26 2005-11-02 Gefinex Gesellschaft für Innovative Extrusionsprodukte mbh Method for manufacturing a dilatation joint material for floating floors
FR2805836B1 (en) * 2000-03-01 2002-10-25 Vetrotex France Sa SUBSTRATE FOR THE ACOUSTIC INSULATION OF A FLOATING SLAB
JP4624169B2 (en) 2004-09-22 2011-02-02 Ｊｕｋｉ株式会社 Sewing machine feeder
DE102004054099A1 (en) * 2004-11-09 2006-05-11 E. Missel Gmbh & Co. Kg Pipe insulating material for use in e.g. insulation system, has lamination sheet and tear-proof lattice fabric, which is in the form of web product for impact noise insulation of floors
EP1710370A3 (en) 2005-03-22 2008-03-12 Quithell Gmbh Edge-insulating strip for floor screeds
DE202005016222U1 (en) 2005-10-15 2007-03-01 Quithell Gmbh Edge insulating strip for use in cement flooring, has wall attachment side piece whose upper surfaces are laminated with liners, where one liner is extended to elastically bended base, and side piece and liners are made of foam plastic

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29704323U1 (en) * 1997-02-26 1997-05-15 Textec Construct GmbH Technische Textilien und Werkstoffe, 16321 Lindenberg Sealing tape / sealing membrane as a connecting element in the construction industry
DE19823419A1 (en) * 1998-05-26 1999-12-02 Kloeber Johannes Intermediate rafter insulation system
DE10255598A1 (en) * 2001-12-21 2003-07-03 Schmid Baukunststoffe Gmbh Adhesive strip for sealing window or door jambs against surfaces of wall openings comprises a sealing foil carrying adhesive layers on its surface
DE202007007828U1 (en) * 2007-06-02 2008-10-09 Quithell Kunststofftechnik Gmbh Expansion joint strip for screed floors
EP2065534A1 (en) * 2007-11-30 2009-06-03 Fiberweb Berlin GmbH Construction material comprising a long-term UV stabilised, multilayered material

Also Published As

Publication number Publication date
EP2143854A1 (en) 2010-01-13
PL2143854T3 (en) 2016-03-31

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