EP0551892A1 - Tape for false floors - Google Patents

Tape for false floors Download PDF

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Publication number
EP0551892A1
EP0551892A1 EP93100446A EP93100446A EP0551892A1 EP 0551892 A1 EP0551892 A1 EP 0551892A1 EP 93100446 A EP93100446 A EP 93100446A EP 93100446 A EP93100446 A EP 93100446A EP 0551892 A1 EP0551892 A1 EP 0551892A1
Authority
EP
European Patent Office
Prior art keywords
formwork
band
floor
elements
cavity
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.)
Withdrawn
Application number
EP93100446A
Other languages
German (de)
French (fr)
Inventor
Wolfgang Dipl.-Ing. Radtke
Rudolf Dipl.-Ing. Lorré
Freddie Dipl.-Ing. Soethout
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.)
Schmidt Reuter Ingenieurgesellschaft Mbh & Partner KG
Original Assignee
Schmidt Reuter Ingenieurgesellschaft Mbh & Partner KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schmidt Reuter Ingenieurgesellschaft Mbh & Partner KG filed Critical Schmidt Reuter Ingenieurgesellschaft Mbh & Partner KG
Publication of EP0551892A1 publication Critical patent/EP0551892A1/en
Withdrawn legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/02Flooring or floor layers composed of a number of similar elements
    • E04F15/024Sectional false floors, e.g. computer floors
    • E04F15/02405Floor panels
    • E04F15/02417Floor panels made of box-like elements
    • E04F15/02423Floor panels made of box-like elements filled with core material
    • E04F15/02429Floor panels made of box-like elements filled with core material the core material hardening after application

Definitions

  • the invention relates to a tape for raised floors and a raised floor made using this tape.
  • Raised floors are used to create a cavity under the floor in a building for the laying of cables and wires or for ventilation purposes. It is known to produce cavity floors of the type mentioned at the outset and known, for example, from DE-OS 33 17 683, in that a lost formwork is placed on a sub-floor, for example a raw concrete ceiling. This formwork consists of formwork elements placed against one another or overlapping one another, which have support feet at spaced locations and thus rest on the sub-floor. Self-leveling self-leveling screed is applied to this formwork, which usually consists of low-viscosity anhydride or gypsum, sand and aggregates. Such a liquid screed has the consistency of canned milk.
  • the liquid screed hardens on the formwork and then forms the walkable screed layer.
  • the edge joints of the formwork elements are sealed.
  • sealing tapes in the form of foils are used, which are glued to the edges of the circuit elements.
  • Such foils are waterproof, but it often happens that flowing screed still penetrates the sub-floor. If dust has accumulated on the adhesive surfaces of the sealing tape, the adhesive effect is reduced or eliminated. It also happens that the adhesive surfaces stick together to form folds, leakage passages being formed for the liquid screed.
  • Sealing tapes which are glued to a formwork element and form flexible protruding flaps, which are placed on the sub-floor or another formwork element, are often surrounded by the low-viscosity liquid screed. Although the sealing tapes made of film material have proven to be sufficient in the majority of cases, it still happens that sealing tapes are flowed around at individual points. If there is a leak at just one point on the floor, flowing screed flows continuously into the floor cavity until the screed has sufficiently solidified.
  • the invention has for its object to provide a tape for a cavity floor, with which the penetration of screed is prevented in the floor cavity, and a cavity floor, which can be produced in a simple manner while preventing the penetration of liquid screed into the floor cavity.
  • the use of a filter belt ensures that the water present in the liquid screed can penetrate or penetrate the belt, while solids present in the liquid screed are retained.
  • the band arranged over the edge joint of the formwork element thus causes only Water can penetrate into the area of the edge joint, while the solid concentration is increased in the area above by removing the water.
  • An increased solids concentration of the liquid screed has the consequence that the liquid screed has a sealing effect and closes the pores of the filter belt.
  • the principle of the filter belt is therefore to reduce the flowability of the liquid screed in the joint area by removing water and thereby to seal the gap.
  • the porous tape is preferably made of a woven or non-woven fabric, but another porous material can also be used, for example open-cell foam.
  • the filter belt is very flexible and smooth, so that it can nestle over the entire surface of a formwork element and without gaps. This suppleness does not have to exist when the filter belt is dry. It is sufficient if it occurs when the filter belt is moistened. Moistening increases the flexibility and adaptability of the filter belt under the pressure of the liquid screed above it.
  • the filter belt is preferably permeable to water, so that water reaches the floor cavity through the filter belt and the edge joint, while the solids present in the liquid screed are retained.
  • the water present in the floor cavity can dry out through suction openings in the floor floor or by conveying air through the floor cavity, or it can also be suctioned off.
  • the filter belt can also have a very high water storage capacity if the penetration of water into the floor cavity has to be prevented.
  • the tape can be used to seal the joints of two adjacent formwork elements or the joints between a formwork element and the sub-floor or the joints between a formwork element and the adjacent room wall.
  • the cavity floor shown in Fig. 1 has a sub-floor 10, which can be the raw concrete ceiling of a building.
  • a formwork of formwork elements 11, which rests on supporting feet 12, is arranged above the sub-floor 10, so that a floor cavity 13 is formed between the formwork elements 11 and the sub-floor 10.
  • the support feet 12 are arranged distributed locally and they do not form the floor cavity 13 dividing continuous walls, but only local supports.
  • the formwork elements 11 are relatively rigid plates, for example made of plasterboard, metal or plastic.
  • the formwork elements 11 form a lost formwork that remains in the cavity floor.
  • a layer of self-leveling screed 14 is poured over them, which is so thin that it has a self-leveling effect, so that a smooth surface is created. After the liquid screed has set, a screed layer is created that forms the resilient tread surface of the room.
  • edge joints 15 of two adjacent formwork elements 11 placed against one another are covered by a band 16 which is fixed to the one formwork element 11 with an adhesive 17 and overlaps the adjacent formwork element 11.
  • the band 16 consists of a single or multi-layer fabric or fleece made of fiber material.
  • the band 16 forms a porous filter web which is permeable to water, but which retains solid bodies such as gypsum or sand present in the liquid screed 14.
  • solid bodies such as gypsum or sand present in the liquid screed 14.
  • the band 16 absorbs water, which increases its suppleness, so that the band 16 clings tightly to the tops of both formwork elements 11.
  • the formwork elements 11a also consist of relatively rigid plates. These plates are provided with holes 18 into which tubular foot covers 19 are inserted from below. The perforated edges of the formwork elements 11a each rest on a flange 20 of the foot cover 19. The tubular foot cover 19, which is open at the top and closed at the bottom, is filled with the liquid screed 14.
  • a height offset of the adjacent edges of the formwork elements 11a can occur due to unevenness in the sub-floor 10, a height offset of the adjacent edges of the formwork elements 11a can occur.
  • This height offset is bridged by the supple band 16, which lies flat against each of the two formwork elements 11a.
  • the tape 16 is provided here with adhesive layers 17 along its two edges. Otherwise, it consists of the same material as the band 16 of FIG. 1.
  • the tape 16 can be pre-assembled in rolls and laid over the edge joints 15.
  • the tape can carry the adhesive layer 17 as an adhesive strip covered with a removable protective film.
  • Fig. 3 shows two formwork elements 21, which are each formed from a one-piece plastic film by deep drawing.
  • Each of the formwork elements 21 forms a three-dimensional structure with local foot covers, which are poured with liquid screed.
  • the edges of the formwork elements 21 overlap one another and they have aligned holes 22, 23 through which a locking element 24 is inserted in each case.
  • the locking element 24 is a Anchor button with a mushroom-shaped head 25, a shaft 26 projecting from the flat underside of the head 25 and with resilient anchoring arms 27 pointing obliquely outwards from the shaft 26 and towards the head 25.
  • the edge joint 15 is hereby formed by the overlap area of the two formwork elements 21.
  • This edge joint is covered by the band 16, which at the same time overlaps part of each of the two formwork elements 21.
  • the band 16 also extends between the head 25 of the locking element 24 and there has a hole aligned with the holes 22 and 23 through which the shaft 26 is inserted.
  • the band 16 thus seals not only the edge joint 15 but also the passage of the locking element 24 through the two formwork elements 21 lying one above the other.
  • the locking element 24 presses the overlapping regions of the formwork elements 21 and the band 16 in a sandwich-like manner.
  • two formwork elements 21 made of film material are connected to one another by locking elements 24, just as in FIG. 3.
  • the band 16 does not extend on the upper sides of both overlapping formwork elements but rather between the underside of one formwork element and the top of the other formwork element.
  • the edge joint 15 is formed between the overlapping areas of the formwork elements 21.
  • the tape 16 is fixed to the underside of one formwork element 21 with an adhesive layer 17 and it lies loosely on the top of the other formwork element 21.
  • the water does not flow across the belt 16 but in the longitudinal direction.
  • Locking elements 24 compress the band 16 between the overlapping areas of the formwork elements 21.
  • FIG. 5 shows a formwork element 31 made of deep-drawn plastic film, in which the floor cavity is formed from non-contiguous channels 32, which are created by a corrugated structure of the formwork element 31.
  • the formwork element 31 has a flange 33 resting on the sub-floor 10, to which the band 16 is glued.
  • the band 16 forms a flexible tab projecting from the flange 33, which is placed loosely on the underbody 10.
  • the edge joint 15 is formed here between the flange 33 and the underbody 10.
  • the tape 16 nestles against unevenness in the underbody 10.
  • the band covers an edge joint which is formed between a formwork element and an upstanding wall of the room, that is to say at the edge of the cavity floor.
  • the tape can be laid at an angle of 90 °.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Abstract

In order to seal the edge joint (15) of shuttering elements (11), arranged on an underfloor (10) in order to form a floor cavity (13), said edge joint (15) is covered with a tape (16) which is composed of a filter tape which is absorbent or permeable with respect to water. When the shuttering elements (11) are covered by pourable screeds (14), water penetrates through the tape (16) into the floor cavity (13), while solids are retained. As a result, the concentration of solids above the strip (16) is increased and said strip becomes self-sealing. <IMAGE>

Description

Die Erfindung betrifft ein Band für Hohlraumböden sowie einen unter Verwendung dieses Bandes hergestellten Hohlraumboden.The invention relates to a tape for raised floors and a raised floor made using this tape.

Hohlraumböden werden benutzt um in einem Gebäude unter dem Fußboden einen Hohlraum für die Verlegung von Kabeln und Leitungen oder für Lüftungszwecke zu erzeugen. Es ist bekannt, Hohlraumböden der eingangs genannten und beispielsweise durch die DE-OS 33 17 683 bekannten Art dadurch herzustellen, daß eine verlorene Schalung auf einen Unterboden, z.B. eine Rohbetondecke, aufgelegt wird. Diese Schalung besteht aus gegeneinandergesetzten oder einander überlappenden Schalungselementen, die an beabstandeten Stellen Tragfüße aufweisen und damit auf dem Unterboden ruhen. Auf diese Schalung wird selbstnivellierender Fließestrich aufgebracht, der in der Regel aus dünnflüssigem Anhydrid oder Gips, Sand und Zuschlagstoffen besteht. Ein solcher Fließestrich hat etwa die Konsistenz von Dosenmilch. Der Fließestrich erhärtet auf der Schalung und bildet danach die begehbare Estrichschicht. Um zu verhindern, daß der Fließestrich in den Bodenhohlraum eindringt, werden die Randfugen der Schalungselemente abgedichtet. Hierzu werden Dichtungsbänder in Form von Folien benutzt, die an die Ränder der Schaltungselemente angeklebt werden. Solche Folien sind wasserdicht, jedoch kommt es häufig vor, daß dennoch Fließestrich in den Unterboden eindringt. Wenn sich Staub auf den Klebeflächen des Dichtungsbandes angesetzt hat, ist die Klebewirkung vermindert oder aufgehoben. Ferner kommt es vor, daß die Klebeflächen unter Faltenbildung zusammenkleben, wobei Leckpassagen für den Fließestrich gebildet werden. Dichtungsbänder, die an einem Schalungselement angeklebt sind und flexible überstehende Lappen bilden, die auf den Unterboden oder ein anderes Schalungselement aufgelegt werden, werden häufig von dem dünnflüssigen Fließestrich umflossen. Obwohl die Dichtungsbänder aus Folienmaterial sich in der Mehrzahl der Fälle als ausreichend erwiesen haben, kommt es immer noch vor, daß Dichtungsbänder an einzelnen Stellen umflossen werden. Wenn auch nur an einer Stelle des Bodens eine Undichtigkeit vorhanden ist, fließt kontinuierlich Fließestrich in den Bodenhohlraum hinein, bis eine hinreichende Verfestigung des Fließestrichs erfolgt ist.Raised floors are used to create a cavity under the floor in a building for the laying of cables and wires or for ventilation purposes. It is known to produce cavity floors of the type mentioned at the outset and known, for example, from DE-OS 33 17 683, in that a lost formwork is placed on a sub-floor, for example a raw concrete ceiling. This formwork consists of formwork elements placed against one another or overlapping one another, which have support feet at spaced locations and thus rest on the sub-floor. Self-leveling self-leveling screed is applied to this formwork, which usually consists of low-viscosity anhydride or gypsum, sand and aggregates. Such a liquid screed has the consistency of canned milk. The liquid screed hardens on the formwork and then forms the walkable screed layer. To prevent the screed from penetrating into the floor cavity, the edge joints of the formwork elements are sealed. For this purpose sealing tapes in the form of foils are used, which are glued to the edges of the circuit elements. Such foils are waterproof, but it often happens that flowing screed still penetrates the sub-floor. If dust has accumulated on the adhesive surfaces of the sealing tape, the adhesive effect is reduced or eliminated. It also happens that the adhesive surfaces stick together to form folds, leakage passages being formed for the liquid screed. Sealing tapes, which are glued to a formwork element and form flexible protruding flaps, which are placed on the sub-floor or another formwork element, are often surrounded by the low-viscosity liquid screed. Although the sealing tapes made of film material have proven to be sufficient in the majority of cases, it still happens that sealing tapes are flowed around at individual points. If there is a leak at just one point on the floor, flowing screed flows continuously into the floor cavity until the screed has sufficiently solidified.

Der Erfindung liegt die Aufgabe zugrunde, ein Band für einen Hohlraumboden zu schaffen, mit dem das Eindringen von Estrichmasse in den Bodenhohlraum verhindert wird, sowie einen Hohlraumboden, der auf einfache Weise unter Verhinderung des Eindringens von Fließestrich in den Bodenhohlraum hergestellt werden kann.The invention has for its object to provide a tape for a cavity floor, with which the penetration of screed is prevented in the floor cavity, and a cavity floor, which can be produced in a simple manner while preventing the penetration of liquid screed into the floor cavity.

Die Lösung dieser Aufgabe erfolgt erfindungsgemäß mit den Merkmalen des Patentanspruchs 1 bzw. des Patentanspruchs 4.This object is achieved according to the invention with the features of patent claim 1 and patent claim 4.

Durch die Verwendung eines Filterbandes wird erreicht, daß das im Fließestrich vorhandene Wasser durch das Band hindurchdringen oder in dieses eindringen kann, während im Fließestrich vorhandene Feststoffe zurückgehalten werden. Das über der Randfuge des Verschalungselements angeordnete Band bewirkt somit, daß lediglich Wasser in den Bereich der Randfuge eindringen kann, während in dem darüberliegenden Bereich durch Entzug des Wassers die Feststoffkonzentration erhöht wird. Eine erhöhte Feststoffkonzentration des Fließestrichs hat zur Folge, daß der Fließestrich abdichtend wirkt und die Poren des Filterbandes verschließt. Das Prinzip des Filterbandes besteht somit darin, im Fugenbereich durch Wasserentzug die Fließfähigkeit des Fließestrichs zu verringern und dadurch den Spalt abzudichten.The use of a filter belt ensures that the water present in the liquid screed can penetrate or penetrate the belt, while solids present in the liquid screed are retained. The band arranged over the edge joint of the formwork element thus causes only Water can penetrate into the area of the edge joint, while the solid concentration is increased in the area above by removing the water. An increased solids concentration of the liquid screed has the consequence that the liquid screed has a sealing effect and closes the pores of the filter belt. The principle of the filter belt is therefore to reduce the flowability of the liquid screed in the joint area by removing water and thereby to seal the gap.

Das poröse Band besteht vorzugsweise aus einem Gewebe oder Vlies, jedoch kann auch ein anderes poröses Material verwendet werden, beispielsweise offenzelliger Schaumstoff. In jedem Fall ist das Filterband sehr flexibel und geschmeidig, so daß sie sich an ein Schalungselement vollflächig und spaltfrei anschmiegen kann. Diese Geschmeidigkeit muß nicht bereits im trockenen Zustand des Filterbandes vorhanden sein. Es reicht aus, wenn sie bei Befeuchtung des Filterbandes entsteht. Durch Befeuchtung wird die Flexibilität und Anpassungsfähigkeit des Filterbandes unter dem Druck des darüberliegenden Fließestrichs erhöht.The porous tape is preferably made of a woven or non-woven fabric, but another porous material can also be used, for example open-cell foam. In any case, the filter belt is very flexible and smooth, so that it can nestle over the entire surface of a formwork element and without gaps. This suppleness does not have to exist when the filter belt is dry. It is sufficient if it occurs when the filter belt is moistened. Moistening increases the flexibility and adaptability of the filter belt under the pressure of the liquid screed above it.

Vorzugsweise ist das Filterband für Wasser durchlässig, so daß Wasser durch das Filterband und die Randfuge hindurch in den Bodenhohlraum gelangt, während die im Fließestrich vorhandenen Feststoffe zurückgehalten werden. Das im Bodenhohlraum vorhandene Wasser kann durch Installationsöffnungen des Hohlraumbodens oder durch Luftförderung durch den Bodenhohlraum hindurch austrocknen oder auch abgesaugt werden.The filter belt is preferably permeable to water, so that water reaches the floor cavity through the filter belt and the edge joint, while the solids present in the liquid screed are retained. The water present in the floor cavity can dry out through suction openings in the floor floor or by conveying air through the floor cavity, or it can also be suctioned off.

Das Filterband kann auch eine sehr hohe Wasserspeicherfähigkeit aufweisen, wenn das Eindringen von Wasser in den Bodenhohlraum verhindert werden muß.The filter belt can also have a very high water storage capacity if the penetration of water into the floor cavity has to be prevented.

Das Band kann dazu verwendet werden, die Fugen zweier aneinander grenzender Schalungselemente abzudichten oder auch die Fugen zwischen einem Schalungselement und dem Unterboden oder die Fugen zwischen einem Schalungselement und der angrenzenden Raumwand.The tape can be used to seal the joints of two adjacent formwork elements or the joints between a formwork element and the sub-floor or the joints between a formwork element and the adjacent room wall.

Im folgen werden unter Bezugnahme auf die Zeichnungen Ausführungsbeispiele der Erfindung näher erläutert.In the following, exemplary embodiments of the invention are explained in more detail with reference to the drawings.

Es zeigen:

Fig. 1
einen schematischen Vertikalschnitt durch einen Hohlraumboden,
Fig. 2
einen Vertikalschnitt durch einen Hohlraumboden, der auf einem unebenen Unterboden verlegt ist,
Fig. 3
einen Vertikalschnitt der Verbindung zweier sich überlappender Schalungselemente,
Fig. 4
eine alternative Ausführung zu Fig. 3 und
Fig. 5
eine perspektivische Ansicht einer gegenüber dem Unterboden abgedichteten Schalung.
Show it:
Fig. 1
a schematic vertical section through a cavity floor,
Fig. 2
a vertical section through a cavity floor, which is laid on an uneven sub-floor,
Fig. 3
a vertical section of the connection of two overlapping formwork elements,
Fig. 4
an alternative embodiment to Fig. 3 and
Fig. 5
a perspective view of a formwork sealed against the sub-floor.

Der in Fig. 1 dargestellte Hohlraumboden weist einen Unterboden 10 auf, bei dem es sich um die Rohbetondecke eines Gebäudes handeln kann. Über dem Unterboden 10 ist eine Schalung aus Schalungselementen 11 angeordnet, die auf Tragfüßen 12 ruhen, so daß zwischen den Schalungselementen 11 und dem Unterboden 10 ein Bodenhohlraum 13 gebildet wird. Die Tragfüße 12 sind örtlich verteilt angeordnet und sie bilden keine den Bodenhohlraum 13 unterteilenden durchgehenden Wände, sondern nur örtliche Abstützungen. Bei dem vorliegenden Ausführungsbeispiel sind die Schalungselemente 11 relativ steife Platten z.B. aus Gipskarton, Metall oder Kunststoff. Die Schalungselemente 11 bilden eine verlorene Schalung, die im Hohlraumboden verbleibt. Über ihnen wird eine Schicht aus Fließestrich 14 ausgegossen, der so dünnflüssig ist, daß er selbstnivellierend wirkt, so daß eine glatte Oberfläche entsteht. Nach Abbinden des Fließestrichs entsteht eine Estrichschicht, die die belastbare Trittfläche des Raums bildet.The cavity floor shown in Fig. 1 has a sub-floor 10, which can be the raw concrete ceiling of a building. A formwork of formwork elements 11, which rests on supporting feet 12, is arranged above the sub-floor 10, so that a floor cavity 13 is formed between the formwork elements 11 and the sub-floor 10. The support feet 12 are arranged distributed locally and they do not form the floor cavity 13 dividing continuous walls, but only local supports. In the present exemplary embodiment, the formwork elements 11 are relatively rigid plates, for example made of plasterboard, metal or plastic. The formwork elements 11 form a lost formwork that remains in the cavity floor. A layer of self-leveling screed 14 is poured over them, which is so thin that it has a self-leveling effect, so that a smooth surface is created. After the liquid screed has set, a screed layer is created that forms the resilient tread surface of the room.

Die Randfugen 15 zweier benachbarter auf Stoß gegeneinander gesetzter Schalungselemente 11 sind von einem Band 16 überdeckt, das an dem einen Schalungselement 11 mit einem Kleber 17 fixiert ist und das angrenzende Schalungselement 11 überlappt.The edge joints 15 of two adjacent formwork elements 11 placed against one another are covered by a band 16 which is fixed to the one formwork element 11 with an adhesive 17 and overlaps the adjacent formwork element 11.

Das Band 16 besteht aus einem ein- oder mehrlagigen Gewebe oder Vlies aus Fasermaterial. Das Band 16 bildet eine poröse Filterbahn, die für Wasser durchlässig ist, jedoch im Fließestrich 14 vorhandene Festkörper wie Gips oder Sand, zurückhält. Wenn das Band 16 mit dem Wasser des Fließestrichs 14 in Berührung kommt, saugt es Wasser auf, wodurch seine Geschmeidigkeit erhöht wird, so daß sich das Band 16 an die Oberseiten beider Schalungselemente 11 dicht anschmiegt. Durch das Band 16 und die Randfuge 15 fließt Wasser in den Bodenhohlraum 13. Dadurch wird die Konzentration der Feststoffe über dem Band 16 erhöht und die Poren des Bands setzen sich mit Feststoffen zu. Dadurch erhält das Band 16 seine abdichtende Wirkung, so daß es schließlich auch kein Wasser mehr durchläßt.The band 16 consists of a single or multi-layer fabric or fleece made of fiber material. The band 16 forms a porous filter web which is permeable to water, but which retains solid bodies such as gypsum or sand present in the liquid screed 14. When the band 16 comes into contact with the water of the flowing screed 14, it absorbs water, which increases its suppleness, so that the band 16 clings tightly to the tops of both formwork elements 11. Water flows through the belt 16 and the edge joint 15 into the floor cavity 13. This increases the concentration of the solids above the belt 16 and the pores of the belt become clogged with solids. This gives the tape 16 its sealing effect, so that it finally no longer lets water through.

Bei den Ausführungsbeispiel von Fig. 2 bestehen die Schalungselemente 11a ebenfalls aus relativ steifen Platten. Diese Platten sind mit Löchern 18 versehen, in die rohrförmige Fußhüllen 19 von unter her eingesteckt sind. Die Lochränder der Schalungselemente 11a ruhen jeweils auf einem Flansch 20 der Fußhülle 19. Hierbei wird die rohrförmige Fußhülle 19, die oben offen und unten geschlossen ist, mit dem Fließestrich 14 ausgefüllt.In the embodiment of Fig. 2, the formwork elements 11a also consist of relatively rigid plates. These plates are provided with holes 18 into which tubular foot covers 19 are inserted from below. The perforated edges of the formwork elements 11a each rest on a flange 20 of the foot cover 19. The tubular foot cover 19, which is open at the top and closed at the bottom, is filled with the liquid screed 14.

Aus Fig. 2 ist ersichtlich, daß infolge von Unebenheiten des Unterbodens 10 ein Höhenversatz der benachbarten Ränder der Schalungselemente 11a auftreten kann. Dieser Höhenversatz wird durch das anschmiegsame Band 16 überbrückt, das sich flächig an jedes der beiden Schalungselemente 11a anlegt. Das Band 16 ist hier entlang seiner beiden Ränder mit Klebeschichten 17 versehen. Im übrigen besteht es aus dem gleichen Material wie das Band 16 von Fig. 1.From Fig. 2 it can be seen that due to unevenness in the sub-floor 10, a height offset of the adjacent edges of the formwork elements 11a can occur. This height offset is bridged by the supple band 16, which lies flat against each of the two formwork elements 11a. The tape 16 is provided here with adhesive layers 17 along its two edges. Otherwise, it consists of the same material as the band 16 of FIG. 1.

Das Band 16 kann in Rollen vorkonfektioniert sein und über den Randfugen 15 verlegt werden. Dabei kann das Band die Klebeschicht 17 als einen mit einer abziehbaren Schutzfolie bedeckten Haftstreifen tragen.The tape 16 can be pre-assembled in rolls and laid over the edge joints 15. The tape can carry the adhesive layer 17 as an adhesive strip covered with a removable protective film.

Fig. 3 zeigt zwei Schalungselemente 21, die jeweils aus einer einstückigen Kunststoffolie durch Tiefziehen ausgeformt sind. Jedes der Schalungselemente 21 bildet eine dreidimensionale Struktur mit örtlichen Fußhüllen, die mit Fließestrich ausgegossen werden. Die Ränder der Schalungselemente 21 überlappen sich gegenseitig und sie weisen miteinander fluchtende Löcher 22,23 auf, durch die jeweils ein Verriegelungselement 24 hindurch gesteckt ist. Das Verriegelungselement 24 ist ein Ankerknopf mit einem pilzförmigen Kopf 25, einem von der flachen Unterseite des Kopfs 25 abstehenden Schaft 26 und mit von dem Schaft 26 schräg nach außen und zum Kopf 25 weisenden federnden Verankerungsarmen 27. Die Randfuge 15 wird hierbei von dem Überlappungsbereich der beiden Schalungselemente 21 gebildet. Diese Randfuge ist von dem Band 16 überdeckt, das gleichzeitig einen Teil jedes der beiden Schalungselemente 21 überlappt. Das Band 16 erstreckt sich auch zwischen dem Kopf 25 des Verriegelungselements 24 und es weist dort ein mit den Löchern 22 und 23 fluchtendes Loch auf, durch das der Schaft 26 hindurch gesteckt ist. Das Band 16 dichtet somit nicht nur die Randfuge 15 ab sondern auch den Durchgang des Verriegelungselements 24 durch die beiden übereinander liegenden Schalungselemente 21. Das Verriegelungselement 24 drückt die sich überlappenden Bereiche der Schalungselemente 21 und das Band 16 sandwichartig gegeneinander.Fig. 3 shows two formwork elements 21, which are each formed from a one-piece plastic film by deep drawing. Each of the formwork elements 21 forms a three-dimensional structure with local foot covers, which are poured with liquid screed. The edges of the formwork elements 21 overlap one another and they have aligned holes 22, 23 through which a locking element 24 is inserted in each case. The locking element 24 is a Anchor button with a mushroom-shaped head 25, a shaft 26 projecting from the flat underside of the head 25 and with resilient anchoring arms 27 pointing obliquely outwards from the shaft 26 and towards the head 25. The edge joint 15 is hereby formed by the overlap area of the two formwork elements 21. This edge joint is covered by the band 16, which at the same time overlaps part of each of the two formwork elements 21. The band 16 also extends between the head 25 of the locking element 24 and there has a hole aligned with the holes 22 and 23 through which the shaft 26 is inserted. The band 16 thus seals not only the edge joint 15 but also the passage of the locking element 24 through the two formwork elements 21 lying one above the other. The locking element 24 presses the overlapping regions of the formwork elements 21 and the band 16 in a sandwich-like manner.

Bei dem Ausführungsbeispiel von Fig. 4 sind zwei aus Folienmaterial bestehende Schalungselemente 21 - ebenso wie bei Fig. 3 - durch Verriegelungselemente 24 miteinander verbunden. Das Band 16 erstreckt sich jedoch nicht auf den Oberseiten beider überlappender Schalungselemente sondern zwischen der Unterseite des einen Schalungselements und der Oberseite des anderen Schalungselements. Die Randfuge 15 wird zwischen den Überlappungsbereichen der Schalungselemente 21 gebildet. Das Band 16 ist an der Unterseite des einen Schalungselements 21 mit einer Klebeschicht 17 fixiert und es liegt lose auf der Oberseite des anderen Schalungselements 21 auf. Das Wasser fließt hierbei nicht quer durch das Band 16 hindurch sondern in dessen Längsrichtung. Die in regelmäßigen Abständen vorgesehenen Verriegelungselemente 24 drücken das Band 16 zwischen den Überlappungsbereichen der Schalungselemente 21 zusammen.In the embodiment of FIG. 4, two formwork elements 21 made of film material are connected to one another by locking elements 24, just as in FIG. 3. However, the band 16 does not extend on the upper sides of both overlapping formwork elements but rather between the underside of one formwork element and the top of the other formwork element. The edge joint 15 is formed between the overlapping areas of the formwork elements 21. The tape 16 is fixed to the underside of one formwork element 21 with an adhesive layer 17 and it lies loosely on the top of the other formwork element 21. The water does not flow across the belt 16 but in the longitudinal direction. The provided at regular intervals Locking elements 24 compress the band 16 between the overlapping areas of the formwork elements 21.

Fig. 5 zeigt ein Schalungselement 31 aus tiefgezogener Kunststoffolie, bei dem der Bodenhohlraum aus nicht zusammenhängenden Kanälen 32 gebildet wird, die durch eine Wellenstruktur des Schalungselements 31 entstanden sind. Das Schalungselement 31 weist einen auf dem Unterboden 10 aufliegenden Flansch 33 auf, an den das Band 16 angeklebt ist. Das Band 16 bildet einen von dem Flansch 33 abstehenden flexiblen Lappen, der auf den Unterboden 10 lose aufgelegt wird. Die Randfuge 15 wird hier zwischen dem Flansch 33 und dem Unterboden 10 gebildet. Das Band 16 schmiegt sich an Unebenheiten des Unterbodens 10 an.5 shows a formwork element 31 made of deep-drawn plastic film, in which the floor cavity is formed from non-contiguous channels 32, which are created by a corrugated structure of the formwork element 31. The formwork element 31 has a flange 33 resting on the sub-floor 10, to which the band 16 is glued. The band 16 forms a flexible tab projecting from the flange 33, which is placed loosely on the underbody 10. The edge joint 15 is formed here between the flange 33 and the underbody 10. The tape 16 nestles against unevenness in the underbody 10.

Bei einem nicht dargestellten weiteren Ausführungsbeispiel überdeckt das Band eine Randfuge, die zwischen einem Schalungselement und einer aufragenden Raumwand gebildet wird, also am Rand des Hohlraumbodens. Das Band kann hierbei um 90° abgewinkelt verlegt sein.In a further exemplary embodiment, which is not shown, the band covers an edge joint which is formed between a formwork element and an upstanding wall of the room, that is to say at the edge of the cavity floor. The tape can be laid at an angle of 90 °.

Claims (10)

Band für Hohlraumböden, zum Verschließen von Randfugen (15) von mit Fließestrich (14) zu überdeckenden Schalungselementen (11;21;31),
dadurch gekennzeichnet,
daß das Band (16) aus einem für Wasser durchlässigen oder aufnahmefähigen Filterband besteht, das im Fließestrich (14) vorhandene Festkörper zurückhält.
Tape for cavity floors, for closing edge joints (15) of formwork elements (11; 21; 31) to be covered with flowing screed (14),
characterized,
that the belt (16) consists of a water-permeable or absorbent filter belt which retains existing solids in the liquid screed (14).
Band nach Anspruch 1, dadurch gekennzeichnet, daß es aus einem ein- oder mehrlagigen Gewebe oder Vlies aus Fasermaterial besteht.Belt according to claim 1, characterized in that it consists of a single or multi-layer fabric or fleece made of fiber material. Band nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Material des Filterbandes wasseraufsaugend ist.Belt according to claim 1 or 2, characterized in that the material of the filter belt is water-absorbent. Hohlraumboden mit einer auf einem Unterboden (10) stehenden Schalung aus Schalungselementen (11,21,31) deren Randfugen 15 durch Bänder (16) verschlossen sind, und einer darüber befindlichen Estrichschicht (14), gekennzeichnet durch mindestens ein Band nach einem der Ansprüche 1 bis 3.Cavity floor with a formwork of formwork elements (11, 21, 31) standing on a sub-floor (10), the edge joints 15 of which are closed by bands (16), and a screed layer (14) located above, characterized by at least one band according to one of Claims 1 to 3. Hohlraumboden nach Anspruch 4, dadurch gekennzeichnet, daß die Schalungselemente (21) einander überlappen und durch Verriegelungselemente (24) zueinander arretiert sind und daß das Band (16) an den Verriegelungselementen (24) fixiert ist.Cavity floor according to claim 4, characterized in that the formwork elements (21) overlap one another and are locked to one another by locking elements (24) and in that the band (16) is fixed to the locking elements (24). Hohlraumboden nach Anspruch 5, dadurch gekennzeichnet, daß die Verriegelungselemente (24) und das Band (16) an einem der beiden Schalungselemente (21) angebracht sind und das Band (16) das andere Schalungselement lose überlappt.Raised floor according to claim 5, characterized in that the locking elements (24) and the band (16) is attached to one of the two formwork elements (21) and the band (16) loosely overlaps the other formwork element. Hohlraumboden nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß die Verriegelungselemente (24) durch Löcher (22,23) der Schalungselemente (21) und des Bandes (16) hindurchragen, wobei das Band (16) die Lochabdichtung bewirkt.Raised floor according to claim 5 or 6, characterized in that the locking elements (24) protrude through holes (22, 23) in the formwork elements (21) and the band (16), the band (16) effecting the hole seal. Hohlraumboden nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, daß das Filterband an dem Rand eines Schalungselements (11,21,31), über diesen Rand überstehend, fixiert ist.Cavity floor according to one of claims 4 to 7, characterized in that the filter band is fixed to the edge of a formwork element (11, 21, 31), projecting beyond this edge. Hohlraumboden nach einem der Ansprüche 4 bis 8, dadurch gekennzeichnet, daß mindestens ein Schalungselement (31) einen auf dem Unterboden (10) ruhenden Flansch (33) aufweist, der von einem überstehenden Band (16) bedeckt ist.Raised floor according to one of claims 4 to 8, characterized in that at least one formwork element (31) has a flange (33) resting on the sub-floor (10) and covered by a protruding band (16). Hohlraumboden nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß mindestens ein an einer Raumwand angrenzendes Schalungselement mit einem Filterband versehen ist, das aufragend gegen die Raumwand gelegt ist.Raised floor according to one of claims 1 to 9, characterized in that at least one formwork element adjacent to a room wall is provided with a filter belt which is placed so as to project against the room wall.
EP93100446A 1992-01-16 1993-01-14 Tape for false floors Withdrawn EP0551892A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4200938 1992-01-16
DE19924200938 DE4200938C2 (en) 1992-01-16 1992-01-16 Band for hollow floors

Publications (1)

Publication Number Publication Date
EP0551892A1 true EP0551892A1 (en) 1993-07-21

Family

ID=6449597

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93100446A Withdrawn EP0551892A1 (en) 1992-01-16 1993-01-14 Tape for false floors

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EP (1) EP0551892A1 (en)
DE (1) DE4200938C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPN20120051A1 (en) * 2012-09-13 2012-12-13 Pontarolo Engineering Spa MODULAR SUPPORT FOR FLOOR SUPPORT.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9420715U1 (en) * 1994-12-24 1995-02-09 FUSSBODEN MENKEL Karlheinz Menkel GmbH & Co. KG, 42109 Wuppertal Raised floor
DE102010003480B4 (en) * 2010-03-30 2015-08-06 Karl-Heinz Fiedler Shrinkage joint profile and floor construction

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR837738A (en) * 1938-05-09 1939-02-20 Formeta Beton As Improvements in storey partitions, concrete floors and ceilings and similar parts of buildings
DE2611372A1 (en) * 1976-03-18 1977-09-22 Hoellfritsch Erich Dipl Volksw METHOD OF MAKING A Raised Floor
DE3317683A1 (en) * 1983-05-14 1984-11-15 Schmidt Reuter Ingenieurgesellschaft mbH & Co KG, 5000 Köln PLASTIC FILM COVER AS A LOST FORMWORK FOR THE PRODUCTION OF THE UPPER FLOOR OF A ROOF FLOOR
EP0125696A2 (en) * 1983-05-17 1984-11-21 Eva-Maria Rasbach Porous multiple-layer tube
GB2224763A (en) * 1988-11-08 1990-05-16 Gyoergy Borbely Shuttering panels for use in formwork for cavity floors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR837738A (en) * 1938-05-09 1939-02-20 Formeta Beton As Improvements in storey partitions, concrete floors and ceilings and similar parts of buildings
DE2611372A1 (en) * 1976-03-18 1977-09-22 Hoellfritsch Erich Dipl Volksw METHOD OF MAKING A Raised Floor
DE3317683A1 (en) * 1983-05-14 1984-11-15 Schmidt Reuter Ingenieurgesellschaft mbH & Co KG, 5000 Köln PLASTIC FILM COVER AS A LOST FORMWORK FOR THE PRODUCTION OF THE UPPER FLOOR OF A ROOF FLOOR
EP0125696A2 (en) * 1983-05-17 1984-11-21 Eva-Maria Rasbach Porous multiple-layer tube
GB2224763A (en) * 1988-11-08 1990-05-16 Gyoergy Borbely Shuttering panels for use in formwork for cavity floors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPN20120051A1 (en) * 2012-09-13 2012-12-13 Pontarolo Engineering Spa MODULAR SUPPORT FOR FLOOR SUPPORT.

Also Published As

Publication number Publication date
DE4200938C2 (en) 1993-12-09
DE4200938A1 (en) 1993-07-29

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