EP3173533B1 - Surface sealing element for building objects - Google Patents

Surface sealing element for building objects Download PDF

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Publication number
EP3173533B1
EP3173533B1 EP16194266.9A EP16194266A EP3173533B1 EP 3173533 B1 EP3173533 B1 EP 3173533B1 EP 16194266 A EP16194266 A EP 16194266A EP 3173533 B1 EP3173533 B1 EP 3173533B1
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EP
European Patent Office
Prior art keywords
flat carrier
sealing element
surface sealing
textile layer
textile
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Application number
EP16194266.9A
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German (de)
French (fr)
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EP3173533A1 (en
Inventor
Josef Feldmeier
Nils Weißenbach
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Max Frank GmbH and Co KG
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Max Frank GmbH and Co KG
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Application filed by Max Frank GmbH and Co KG filed Critical Max Frank GmbH and Co KG
Priority to PL16194266T priority Critical patent/PL3173533T3/en
Publication of EP3173533A1 publication Critical patent/EP3173533A1/en
Application granted granted Critical
Publication of EP3173533B1 publication Critical patent/EP3173533B1/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/64—Insulation or other protection; Elements or use of specified material therefor for making damp-proof; Protection against corrosion
    • E04B1/644—Damp-proof courses

Definitions

  • the invention relates to a surface sealing element for buildings.
  • the entire outer surface of the building that is embedded in the water-bearing soil is sealed.
  • the structure is provided with surface sealing elements on its base and on its side walls and thus packed in a watertight manner.
  • the surface waterproofing must be carefully laid and welded in order to prevent water from penetrating.
  • Surface sealing elements are usually attached to the surface of the formwork wall facing the in-situ concrete and form a firm bond with the fresh concrete after pouring.
  • the surface sealing elements adhere to the outside of the concreted area after the shuttering has been removed and thus form a surface seal.
  • the EP 2 349 707 B1 discloses a surface seal consisting of a bulkhead layer, a composite layer and a sealant disposed discontinuously between the composite layer and bulkhead layer.
  • a flexible plastic film is used as the bulkhead layer, while a felt or fleece is used as the composite layer.
  • the sealant is a pressure sensitive or hot melt adhesive.
  • the fleece attached to the plastic film allows fresh concrete to partially penetrate.
  • the DE 692 13 507 T2 describes a surface seal with a carrier layer to which a pressure-sensitive adhesive layer is applied over the entire surface.
  • a fleece is arranged on the adhesive layer, which allows the fresh concrete to penetrate far enough to form a bond with the adhesive layer.
  • the surface sealing element has a flat carrier consisting of a plastic film and a textile layer arranged on the flat carrier, inseparably connected to the flat carrier and impregnated over the entire surface with a non-sticky adhesion promoter, whereby the textile layer can be a fleece .
  • the DE 40 01 386 A1 discloses a bituminous roofing membrane and a method for its manufacture.
  • the bituminous roofing membrane has a reinforcement layer made of thermoplastic fibers, it being possible for the reinforcement layer to be formed from a fleece.
  • the nonwoven or fabric membrane used as a reinforcement layer is first impregnated with a sizing solution, then passes through a dryer and is then fed to the roofing membrane manufacturing plant.
  • the reinforcement layer is then impregnated with bitumen, coated with bituminous covering compounds and finally laminated with foils.
  • the plastic sealing film consists of a structured film made of copolymer, the surface being structured and / or laminated with fabric or nonwovens.
  • the aim is to provide a surface sealing element for structures that is easy to handle and ensures that the structures are reliably sealed against water and moisture.
  • This object is achieved according to the invention by the surface sealing element according to independent claim 1. Further advantageous aspects, details and embodiments of the invention emerge from the dependent claims, the description and the drawings.
  • the present invention provides a surface sealing element for structures.
  • the surface sealing element has a planar carrier, the planar carrier being a plastic film, and a textile layer arranged on the planar carrier and inseparably connected to the planar carrier, the textile layer being a fleece.
  • the textile layer is fully impregnated with a non-sticky adhesion promoter.
  • the surface sealing element has a thickness I 1.5 mm.
  • the textile layer has knob-like elevations on its surface facing away from the flat carrier and / or the flat carrier has knob-like elevations on its surface facing away from the textile layer and / or the flat carrier has knob-shaped depressions on its surface facing away from the textile layer.
  • impregnating generally refers to an impregnating treatment of solid porous materials, such as e.g. B. textiles, paper, wood or concrete, understood with dissolved, emulsified or dispersed substances. Such dissolved, emulsified or dispersed substances are called impregnating agents. After the solvent or dispersion medium has evaporated or dried, the applied substances give the treated materials modified properties.
  • the surface sealing element according to the invention for structures has a textile layer which is impregnated over the entire surface with a non-sticky adhesion promoter.
  • a textile fabric is impregnated with an impregnating agent which contains a non-sticky adhesion promoter in the form of a solution, emulsion or dispersion.
  • the impregnation agent penetrates the textile fabric completely, so it penetrates into all pores, channels and openings of the textile. After the evaporation or drying of the Solvent or dispersion medium, the non-sticky adhesion promoter remains in the textile fabric or on all surfaces of the textile fabric.
  • Adhesion promoter is generally understood to mean a substance which, due to its properties, makes it possible to bond two materials which, due to their chemical composition, can only be bonded to one another very poorly due to their chemical composition or which are poorly bonded to one another under special environmental conditions can be connected.
  • Adhesion promoters create a bonding bridge between the material and the adhesive in materials or surfaces that are difficult to bond, or they improve adhesion if there are special requirements, such as B. high moisture / wet strength or temperature loads.
  • Adhesion promoters are used when different types of materials have to be glued together, which cannot be directly connected by an adhesive, or when a certain adhesive is to be used because of its special properties but does not adhere sufficiently well to one of the two adhesive partners.
  • a non-tacky adhesion promoter provided according to the invention provides a surface sealing element for building structures, the textile layer of which does not have any adhesive. For this reason, no further measures are required to protect the surface waterproofing during the construction phase. Even when the surface sealing is heavily loaded by workers moving on the textile surface of the surface sealing, the surface sealing is not damaged, since there is no, even short-term, sticking of e.g. Shoe soles can come with the surface sealing.
  • the textile layer can be made thinner and therefore more cost-effective. This is also due to the fact that there is no damage to the textile layer due to adhesions on the construction site.
  • the adhesion promoter also increases the surface area of the fibers of the textile layer, which means that more adhesive surface is available for the in-situ concrete, which at the same time improves the adhesion between fibers and concrete and thus between surface sealing element and concrete.
  • the surface sealing element according to the invention also shows very excellent properties in the sealing of structures against water and gas.
  • the planar support prevents gas and / or water from penetrating, so it is a substantially gas- and / or water-tight planar support.
  • the nonwovens used according to the invention as a textile layer are available at low prices, have the necessary flexibility and provide a large specific surface area to which the adhesion promoter can adhere.
  • the impregnation agent can pass through the very small openings in the fleece and, after drying, is available as an adhesion promoter on the surface facing away from the flat carrier for connection to the in-situ concrete. Since the textile layer is completely impregnated with the non-sticky adhesion promoter, adhesion promoter is available over the entire surface of the surface sealing element, which forms a bond with the fresh concrete when the in-situ concrete is poured.
  • the present invention provides surface sealing elements with a thickness of less than 1.5 mm and a laminated fleece.
  • the prior art does not know of such a thin sealing film which also provides the necessary rear-run security.
  • the textile layer is preferably a fleece made of polyester. Polyester fleeces are available at low prices and have particularly favorable properties in terms of flexibility and specific surface.
  • the textile layer has a mass per unit area of 20 g / m 2 to 70 g / m 2 , preferably 35 g / m 2 to 60 g / m 2 , particularly preferably around 50 g / m 2 .
  • a fleece with such a low mass per unit area and thus also a small thickness can improve the security of the surface seal from behind. The reason for this is that if a thin textile layer is used, the concrete can more easily penetrate to the flat support. This is what creates emergence prevents even the smallest cavities, so that there is subsequently no space for water to enter.
  • the flat carrier is a plastic film.
  • a plastic film fulfills the requirement of sufficient gas and water impermeability and advantageously has sufficient flexibility to enable the surface sealing element to roll.
  • the plastic film is preferably a plastic film consisting of polyvinyl chloride, polyethylene, polypropylene, propylene oxide, polyurethane, in particular thermoplastic polyurethane, or a thermoplastic elastomer based on olefin.
  • a plastic film made of the materials mentioned results in very good properties for the surface sealing element in the sealing of structures against water and gas. At the same time, a surface sealing element is obtained which has the flexibility required for rolling up. Tests have shown that a plastic film made of polypropylene as a flat carrier has the best properties with regard to preventing the penetration of gas and / or water.
  • a plastic film used as a flat carrier advantageously has a thickness of 300 ⁇ m to 1200 ⁇ m, preferably a thickness of 500 ⁇ m to 800 ⁇ m.
  • a plastic film of this thickness not only has sufficient gas and water impermeability but also has sufficient flexibility to enable the surface sealing element to roll.
  • the flat carrier preferably has a weight per unit area of 200 g / m 2 to 700 g / m 2 , particularly preferably 350 g / m 2 to 600 g / m 2 , particularly preferably around 500 g / m 2 .
  • a flat support made of the plastic polypropylene with a weight per unit area of 500 g / m 2 is most suitable.
  • a plastic dispersion, latex dispersion, resin, epoxy resin, crosslinkable synthetic resin, latex, latex emulsion, cement adhesive mortar, natural rubber, synthetic rubber, organofunctional silane, bitumen rubber, butyl is preferred as the impregnation agent for the textile fabric for the production of the surface sealing element - Rubber, bitumen or a deep primer, in particular a deep primer based on alkyd or acrylic resin, or used or an impregnating agent containing one or more of these materials.
  • the impregnating agents mentioned have been shown to be particularly suitable for impregnating the textile fabric.
  • the adhesion promoter contained in the impregnation agent lies evenly after drying distributed over the entire surface of the textile fabric and evenly distributed over the entire surface of the textile layer after the thermal bonding.
  • the surface sealing element preferably has a thickness I 1.2 mm.
  • adhesion promoters instead of the adhesives known from the prior art, it is possible to provide the textile layer of the surface sealing element with a smaller thickness, which is associated with the advantages already mentioned with regard to hindlimb security. Therefore, the entire surface sealing element can also be implemented with a smaller thickness, as a result of which material is saved, the required storage space is reduced and transport costs are reduced. These advantages become particularly evident when the surface sealing element has a thickness of I 1.2 mm.
  • the textile layer of the surface sealing element has knob-like elevations on its surface facing away from the flat carrier.
  • knobs By forming knobs on the top of the textile layer, its surface can also be enlarged, which leads to an improved connection to the in-situ concrete.
  • a mechanical bond with the fresh concrete is ensured by the knob-like elevations arranged on the surface of the textile layer facing away from the flat carrier.
  • the particularly good properties of such a surface sealing element are due to the fact that the surface sealing element simultaneously forms a mechanical bond and an adhesive bond with the fresh concrete.
  • the knob-like elevations are preferably hemispherical, but in principle any shaped elevations can be used.
  • the flat carrier has knob-like elevations on its surface facing away from the textile layer.
  • the knob-like elevations are preferably hemispherical, but in principle any shaped elevations can be used.
  • the surface sealing element When used on the construction site, the surface sealing element is usually attached to a formwork wall, with the planar support of the surface sealing element being in contact with the formwork wall. Knob-like elevations on the upper side of the flat carrier result in a smaller contact surface with the formwork wall. When the surface sealing element is attached to the formwork, the surface sealing element is usually pulled over the formwork.
  • knob-like elevations In the case of knob-like elevations, the frictional forces that occur are not absorbed by the entire flat carrier, but essentially by the knob-like elevations.
  • the surface sealing element often adheres strongly to the formwork wall after the concrete has been poured. Due to the knob-like elevations, the contact area between Reduced formwork wall and surface sealing element, thereby making it easier to remove the formwork after the concrete has hardened. Lower forces therefore act on the surface sealing element, which prevents damage.
  • both the textile layer of the surface sealing element on its surface facing away from the flat support and the flat support on its surface facing away from the textile layer have knob-like elevations.
  • the planar carrier has knob-shaped depressions on its surface facing away from the textile layer.
  • the knob-shaped depressions are preferably hemispherical, but in principle any shaped depressions can be used.
  • knob-like elevations are inevitably formed on the surface of the flat carrier facing the textile layer.
  • the surface sealing element according to the invention has a high degree of flexibility, as a result of which it can be rolled up and thus transported in the form of rolls.
  • the surface sealing element is preferably wound up on rolls in the form of strips 50 meters long and 1.0 to 2.0 meters wide, so that the weight of a single roll remains in a range that enables easy handling on the construction site.
  • the weight of a roll should preferably not exceed 50 kg.
  • the present invention also encompasses methods of manufacturing one of the surface sealing elements described above.
  • the present invention also comprises a method for producing a surface sealing element for buildings, wherein the surface sealing element has a flat carrier, the flat carrier being a plastic film, and a textile which is arranged on the flat carrier and inseparably connected to the flat carrier Layer, the textile layer being a fleece, the textile layer being completely impregnated with a non-sticky adhesion promoter, and the surface sealing element having a thickness I ⁇ 1.5 mm, the method comprising the steps of a) Providing a flat carrier, whereby it is the flat carrier is a plastic film, b) providing a textile flat structure, the textile flat structure being a fleece, c) impregnating the textile flat structure with an impregnating agent containing a non-sticky adhesion promoter, the impregnating agent having a dynamic viscosity ⁇ ⁇ 500 mPas and the impregnation of the textile fabric takes place at room temperature, d) drying of the textile fabric impregnated with the impregnating agent containing
  • impregnation agent is understood in the context of the present text to mean a state in which the textile fabric has absorbed an amount of impregnation agent which is above or at least close to the maximum absorption capacity of the textile fabric for the corresponding impregnation agent. This ensures that after the textile fabric has dried, the textile layer connected to the flat carrier is completely impregnated with the non-sticky adhesion promoter, so that adhesion promoter is available over the entire surface of the surface sealing element, which is bonded to the when the in-situ concrete is poured Fresh concrete enters.
  • the impregnating agents used in the process according to the invention have a dynamic viscosity ⁇ 500 mPas.
  • the impregnation agents used according to the present invention with the adhesion promoters contained therein have a significantly lower dynamic viscosity. This significantly simplifies the impregnation of the textile fabric or the impregnation of the textile layer with the impregnation agent containing a non-sticky adhesion promoter.
  • the surface sealing elements according to the invention can be produced quickly, simply and inexpensively by the method specified above.
  • a surface sealing element produced in this way can be rolled up without any problems immediately after drying without sticking.
  • the soaked and subsequently dried flat textile structure can also be rolled up and temporarily stored prior to thermal bonding with the flat carrier. It is therefore not absolutely necessary to carry out all production steps directly one after the other in the manufacture of the surface sealing element. This makes it possible, for example, to carry out individual work steps separately from one another, which makes cost-effective outsourcing possible. In the case of the surface sealing elements known from the prior art, such a procedure is not possible because of the stickiness of the textile layer.
  • the thermal bonding of the flat textile structure and the flat carrier takes place after the impregnation of the flat textile structure.
  • the surface sealing elements obtained in this way have improved properties.
  • step f) running through the surface sealing element obtained in step e) through an arrangement of calender rolls, at least one calender roll coming into contact with the textile layer having knob-shaped depressions.
  • a surface sealing element can be produced, the textile layer of which has knob-like elevations on its surface facing away from the flat carrier, which is associated with the advantages already described above.
  • the knob-like elevations of the textile layer are preferably hemispherical, but in principle any shaped elevations can be used.
  • the calender rolls only need to be equipped with the corresponding knob-shaped depressions.
  • step f) passing the surface sealing element obtained in step e) through an arrangement of calender rolls, at least one calender roll coming into contact with the textile layer having knob-shaped depressions and at least one calender roll coming into contact with the flat carrier Has knob-shaped depressions carried out.
  • a surface sealing element can be produced in which both the textile layer of the surface sealing element on its surface facing away from the flat support and the flat support on its surface facing away from the textile layer have knob-like elevations.
  • the knob-like elevations are preferably hemispherical, but in principle they can be of any shape Increases are used.
  • the calender rolls only need to be equipped with the corresponding knob-shaped depressions.
  • step f) passing the surface sealing element obtained in step e) through an arrangement of calender rolls, at least one calender roll coming into contact with the textile layer having knob-shaped depressions and at least one calender roll coming into contact with the flat carrier Has knob-like elevations carried out.
  • a surface sealing element is produced which is formed with knob-like elevations on the side of the textile layer facing away from the flat carrier. These knob-like elevations are also present as depressions in the flat carrier.
  • a plastic dispersion, latex dispersion, resin, epoxy resin, cross-linkable synthetic resin, latex, latex emulsion, cement adhesive mortar, natural rubber, synthetic rubber, organofunctional silane, bitumen rubber, butyl rubber, bitumen or an indentation is preferred as the impregnating agent, in particular a deep primer based on alkyd or acrylic resin, or an impregnating agent containing one or more of these materials is used.
  • the impregnating agents mentioned have been shown to be particularly suitable for impregnating the textile fabric.
  • the adhesion promoter contained in the impregnation agent is distributed evenly over the entire surface of the textile layer after drying.
  • the impregnation agent has a dynamic viscosity ⁇ 50 mPas, preferably ⁇ ⁇ 10 mPas.
  • the impregnation agents used according to the present invention with the adhesion promoters contained therein have a significantly lower dynamic viscosity.
  • a primer used particularly preferably as an impregnating agent in the context of the present invention has, for example, a dynamic viscosity of 10 mPas.
  • the impregnation agent preferably has a density ⁇ of 0.98 g / cm 3 ⁇ 1.08 g / cm 3 , particularly preferably 1.01 g / cm 3 ⁇ 1.06 g / cm 3 , particularly preferably ⁇ ⁇ 1.04 g / cm 3 .
  • the primer used for the impregnation agent has a density of 1.04 g / cm 3 , for example.
  • the impregnating agent is preferably used to impregnate the textile fabric with the aid of an immersion bath, through which the textile fabric is pulled, and then scraping off excess material.
  • the impregnating agent can also be sprayed on or rolled onto the textile fabric.
  • the Surface sealing element preferably in the form of 50 meter long and 1.0 meter to 2.0 meter wide strips wound on rolls, whereby the weight of a single roll remains in a range that allows easy handling on the construction site.
  • the weight of a roll should preferably not exceed 50 kg.
  • the laying of the surface sealing elements is basically possible both with and without an overlap area, i.e. butt to butt.
  • a thin, tear-resistant film with an adhesive surface is attached under the joint and the adjacent surface sealing elements are bonded to the film.
  • an adhesive tape with a butyl surface is also suitable for securely sealing the joint.
  • the invention is based on an exemplary embodiment in connection with the Figure 1 are explained in more detail.
  • the Figure 1 shows an exemplary embodiment of a surface sealing element 1 according to the invention for structures in a section perpendicular to the plane of the planar support 2 in a schematic representation.
  • Figure 1 shows a surface sealing element 1 with a polyethylene film 2 as an example of a flat carrier.
  • the polyethylene film 2 has a weight per unit area of around 500 g / m 2 .
  • a fleece layer 3 made of polyester as a textile layer is inseparably connected to the polyethylene film 2.
  • the polyester fleece 3 is completely impregnated with a deep base as a non-sticky adhesion promoter and has a weight per unit area of 50 g / m 2 .
  • the polyethylene film 2 has knob-like elevations 5 on its surface facing away from the polyester fleece 3.
  • the polyester fleece 3 likewise has knob-like elevations 4 on its surface facing away from the polyethylene film 2.
  • the knob-like elevations 4, 5 are hemispherical.
  • the illustrated surface sealing element 1 can be rolled up without any problems without sticking and shows excellent properties with regard to sealing against water and gas.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Sealing Material Composition (AREA)
  • Laminated Bodies (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Description

Technisches GebietTechnical area

Die Erfindung bezieht sich auf ein Flächenabdichtelement für Baukörper.The invention relates to a surface sealing element for buildings.

Stand der TechnikState of the art

Bei der Erstellung von Baukörpern tritt das Problem auf, den Baukörper gegen eindringende Feuchtigkeit und Wasser abzudichten. Baukörper im Erdboden wie Fundament, Bodenplatte und gesamter Kellerbereich eines Gebäudes müssen gegenüber Bodenfeuchtigkeit sowie drückendem und nichtdrückendem Wasser aber auch gegen das Eindringen von Gas dicht sein. Werden zur Errichtung der Außenwände des Baukörpers Betonfertigteile, wie etwa Beton-Doppelwandelemente verwendet, so ergeben sich an den Verbindungsstellen zwischen den Doppelwandelementen wie auch an den Verbindungsstellen von Doppelwandelementen und Bodenplatte Fugen, die geeignet abgedichtet werden müssen.When creating structures, the problem arises of sealing the structure against the ingress of moisture and water. Structures in the ground such as the foundation, floor slab and the entire basement area of a building must be impervious to soil moisture and pressurized and non-pressurized water, but also to the penetration of gas. If precast concrete parts, such as concrete double-wall elements, are used to erect the outer walls of the structure, there are joints at the connection points between the double-wall elements and at the connection points between the double-wall elements and the base plate, which must be suitably sealed.

Bei einem unter dem Schlagwort "Schwarze Wanne" bekannten Abdichtverfahren wird die gesamte Außenfläche des in wasserführendem Erdreich eingelassenen Baukörpers abgedichtet. Dazu wird der Baukörper auf seiner Grundfläche und an seinen Seitenwänden mit Flächenabdichtelementen versehen und so wasserdicht eingepackt. An den Fugen zwischen den Betonteilen müssen die Flächenabdichtungen dabei sorgfältig verlegt und verschweißt sein, um ein Eindringen von Wasser zu vermeiden.In a sealing process known under the catchphrase "black tub", the entire outer surface of the building that is embedded in the water-bearing soil is sealed. For this purpose, the structure is provided with surface sealing elements on its base and on its side walls and thus packed in a watertight manner. At the joints between the concrete parts, the surface waterproofing must be carefully laid and welded in order to prevent water from penetrating.

Flächenabdichtelemente werden üblicherweise an der dem Ortbeton zugewandten Oberfläche der Schalungswandung angebracht und gehen nach dem Vergießen einen festen Verbund mit dem Frischbeton ein. Die Flächenabdichtelemente bleiben nach dem Ausschalen an der Außenseite des betonierten Bereichs haften und bilden so eine Flächenabdichtung aus.Surface sealing elements are usually attached to the surface of the formwork wall facing the in-situ concrete and form a firm bond with the fresh concrete after pouring. The surface sealing elements adhere to the outside of the concreted area after the shuttering has been removed and thus form a surface seal.

Die EP 2 349 707 B1 offenbart eine Flächenabdichtung bestehend aus einer Schottschicht, einer Verbundschicht und einem zwischen Verbundschicht und Schottschicht diskontinuierlich angeordneten Dichtmittel. Als Schottschicht wird eine flexible Kunststofffolie eingesetzt, während als Verbundschicht ein Filz oder ein Vlies verwendet wird. Bei dem Dichtmittel handelt es sich um einen Haft- oder Schmelzklebstoff. Das auf der Kunststofffolie angebrachte Vlies lässt Frischbeton teilweise durchdringen.The EP 2 349 707 B1 discloses a surface seal consisting of a bulkhead layer, a composite layer and a sealant disposed discontinuously between the composite layer and bulkhead layer. A flexible plastic film is used as the bulkhead layer, while a felt or fleece is used as the composite layer. The sealant is a pressure sensitive or hot melt adhesive. The fleece attached to the plastic film allows fresh concrete to partially penetrate.

Die DE 692 13 507 T2 beschreibt eine Flächenabdichtung mit einer Trägerschicht, auf der vollflächig eine Haftklebeschicht aufgebracht ist. Auf der Klebeschicht ist ein Vlies angeordnet, welches den Frischbeton weit genug eindringen lässt um mit der Haftklebeschicht einen Verbund einzugehen.The DE 692 13 507 T2 describes a surface seal with a carrier layer to which a pressure-sensitive adhesive layer is applied over the entire surface. A fleece is arranged on the adhesive layer, which allows the fresh concrete to penetrate far enough to form a bond with the adhesive layer.

Aus der EP 1 700 887 A1 ist ein Flächenabdichtelement für Baukörper mit einer Dicke von 2 bis 6 mm bekannt. Das Flächenabdichtelement weist einen aus einer Kunststofffolie bestehenden flächigen Träger und eine auf dem flächigen Träger angeordnete, untrennbar mit dem flächigen Träger verbundene, vollflächig mit einem nicht-klebrigen Haftvermittler imprägnierte, textile Schicht auf, wobei es sich bei der textilen Schicht um ein Vlies handeln kann.From the EP 1 700 887 A1 a surface sealing element for structures with a thickness of 2 to 6 mm is known. The surface sealing element has a flat carrier consisting of a plastic film and a textile layer arranged on the flat carrier, inseparably connected to the flat carrier and impregnated over the entire surface with a non-sticky adhesion promoter, whereby the textile layer can be a fleece .

Die DE 40 01 386 A1 offenbart eine bituminöse Dachbahn und ein Verfahren zu deren Herstellung. Die bituminöse Dachbahn weist eine Verstärkungsschicht aus thermoplastischen Fasern auf, wobei die Verstärkungsschicht aus einem Vlies gebildet sein kann. In einem Verfahren zur Herstellung der Dachbahn wird die als Verstärkungsschicht verwendete Vlies- oder Gewebebahn zunächst mit einer Schlichtelösung getränkt, durchläuft anschließend einen Trockner und wird dann der Dachbahnen-Fertigungsanlage zugeführt. Die Verstärkungsschicht wird nachfolgend mit Bitumen imprägniert, mit bituminösen Deckmassen beschichtet und schließlich mit Folien kaschiert.The DE 40 01 386 A1 discloses a bituminous roofing membrane and a method for its manufacture. The bituminous roofing membrane has a reinforcement layer made of thermoplastic fibers, it being possible for the reinforcement layer to be formed from a fleece. In a method for producing the roofing membrane, the nonwoven or fabric membrane used as a reinforcement layer is first impregnated with a sizing solution, then passes through a dryer and is then fed to the roofing membrane manufacturing plant. The reinforcement layer is then impregnated with bitumen, coated with bituminous covering compounds and finally laminated with foils.

Schließlich ist aus der DD 148 797 A1 eine oberflächenmodifizirte Kunststoffdichtungsfolie für druckwasserhaltende Dichtungen zur Dichtung von Bauwerken gegen Sicker- und Druckwasser bekannt. Die Kunststoffdichtungsfolie besteht aus einer Strukturfolie aus Copolymerisat, wobei die Oberfläche strukturiert und/oder kaschiert mit Gewebe oder Vliesstoffen ist.Finally from the DD 148 797 A1 a surface-modified plastic sealing film for seals holding pressurized water for sealing structures against seepage and pressurized water is known. The plastic sealing film consists of a structured film made of copolymer, the surface being structured and / or laminated with fabric or nonwovens.

Bei diesen, aus dem Stand der Technik bekannten Lösungen tritt in der Praxis das Problem auf, dass nach dem Anbringen der Flächenabdichtelemente an der Schalungswandung oft noch tagelang auf der Flächenabdichtung herumgegangen wird um Arbeiten zu erledigen bevor schließlich der Beton vergossen wird. Folge davon ist, dass der Klebstoff durch das Vlies herausgedrückt wird und an den Schuhen der auf die Flächenabdichtelemente tretenden Arbeiter haften bleibt. Dadurch wird zum einen die Fortbewegung für die Arbeiter erschwert und zum anderen wird durch die klebrigen Schuhe die Oberfläche des Vlieses angegriffen oder gar zerstört, da mit jedem Schritt das Vlies nach oben gezogen wird.With these solutions known from the prior art, the problem arises in practice that after the surface sealing elements have been attached to the formwork wall, the surface sealing is often walked around for days to do work before the concrete is finally poured. The consequence of this is that the adhesive is pressed out through the fleece and sticks to the shoes of the workers stepping on the surface sealing elements. This on the one hand makes it difficult for the workers to move around and on the other hand the surface of the fleece is attacked or even destroyed by the sticky shoes, since the fleece is pulled upwards with every step.

Zudem erfordern die aus dem Stand der Technik bekannten Lösungen bei der Herstellung einen hohen Aufwand, da alle mit Klebstoff versehenen Oberflächen direkt weiterverarbeitet und abgedeckt werden müssen, da diese Oberflächen bei Kontakt mit sich selbst oder anderen Teilen sofort zusammenkleben.In addition, the solutions known from the prior art require a great deal of effort in production, since all surfaces provided with adhesive are direct must be further processed and covered, as these surfaces stick together immediately on contact with themselves or other parts.

Darstellung der ErfindungPresentation of the invention

Hier setzt die Erfindung an. Es soll ein Flächenabdichtelement für Baukörper zur Verfügung gestellt werden, das einfach handhabbar ist und eine sichere Abdichtung der Bauwerke gegen Wasser und Feuchtigkeit gewährleistet. Diese Aufgabe wird erfindungsgemäß durch das Flächenabdichtelement gemäß unabhängigem Anspruch 1 gelöst. Weitere vorteilhafte Aspekte, Details und Ausgestaltungen der Erfindung ergeben sich aus den abhängigen Ansprüchen, der Beschreibung sowie den Zeichnungen.This is where the invention comes in. The aim is to provide a surface sealing element for structures that is easy to handle and ensures that the structures are reliably sealed against water and moisture. This object is achieved according to the invention by the surface sealing element according to independent claim 1. Further advantageous aspects, details and embodiments of the invention emerge from the dependent claims, the description and the drawings.

Die vorliegende Erfindung stellt ein Flächenabdichtelement für Baukörper zur Verfügung. Das Flächenabdichtelement weist einen flächigen Träger, wobei es sich bei dem flächigen Träger um eine Kunststofffolie handelt, und eine auf dem flächigen Träger angeordnete, untrennbar mit dem flächigen Träger verbundene, textile Schicht auf, wobei es sich bei der textilen Schicht um ein Vlies handelt. Die textile Schicht ist vollflächig mit einem nicht-klebrigen Haftvermittler imprägniert. Das Flächenabdichtelement weist eine Dicke I ≤ 1,5 mm auf. Die textile Schicht weist auf ihrer dem flächigen Träger abgewandten Oberfläche noppenartige Erhebungen auf und/oder der flächige Träger weist auf seiner der textilen Schicht abgewandten Oberfläche noppenartige Erhebungen auf und/oder der flächige Träger weist auf seiner der textilen Schicht abgewandten Oberfläche noppenförmige Vertiefungen auf.The present invention provides a surface sealing element for structures. The surface sealing element has a planar carrier, the planar carrier being a plastic film, and a textile layer arranged on the planar carrier and inseparably connected to the planar carrier, the textile layer being a fleece. The textile layer is fully impregnated with a non-sticky adhesion promoter. The surface sealing element has a thickness I 1.5 mm. The textile layer has knob-like elevations on its surface facing away from the flat carrier and / or the flat carrier has knob-like elevations on its surface facing away from the textile layer and / or the flat carrier has knob-shaped depressions on its surface facing away from the textile layer.

Unter dem Begriff "Imprägnierung" oder "Imprägnieren" wird allgemein eine durchtränkende Behandlung von festen porösen Stoffen, wie z. B. Textilien, Papier, Holz oder Beton, mit gelösten, emulgierten oder dispergierten Substanzen verstanden. Solche gelösten, emulgierten oder dispergierten Substanzen werden als Imprägnierungsmittel bezeichnet. Nach dem Verdunsten oder Trocknen des Lösungsmittels bzw. Dispersionsmediums verleihen die aufgebrachten Substanzen den behandelten Materialien veränderte Gebrauchseigenschaften.The term "impregnation" or "impregnation" generally refers to an impregnating treatment of solid porous materials, such as e.g. B. textiles, paper, wood or concrete, understood with dissolved, emulsified or dispersed substances. Such dissolved, emulsified or dispersed substances are called impregnating agents. After the solvent or dispersion medium has evaporated or dried, the applied substances give the treated materials modified properties.

Das erfindungsgemäße Flächenabdichtelement für Baukörper weist eine textile Schicht auf, welche vollflächig mit einem nicht-klebrigen Haftvermittler imprägniert ist. Zur Herstellung des Flächenabdichtelements wird ein textiles Flächengebilde mit einem Imprägnierungsmittel durchtränkt, welches in Form einer Lösung, Emulsion oder Dispersion einen nicht-klebrigen Haftvermittler enthält. Das Imprägnierungsmittel durchdringt das textile Flächengebilde dabei vollständig, dringt also in sämtliche Poren, Kanäle und Öffnungen des Textils ein. Nach dem Verdunsten bzw. Trocknen des Lösungsmittels bzw. Dispersionsmediums bleibt der nicht-klebrige Haftvermittler in dem textilen Flächengebilde bzw. auf sämtlichen Oberflächen des textilen Flächengebildes zurück.The surface sealing element according to the invention for structures has a textile layer which is impregnated over the entire surface with a non-sticky adhesion promoter. To produce the surface sealing element, a textile fabric is impregnated with an impregnating agent which contains a non-sticky adhesion promoter in the form of a solution, emulsion or dispersion. The impregnation agent penetrates the textile fabric completely, so it penetrates into all pores, channels and openings of the textile. After the evaporation or drying of the Solvent or dispersion medium, the non-sticky adhesion promoter remains in the textile fabric or on all surfaces of the textile fabric.

Unter einem "Haftvermittler" wird allgemein eine Substanz verstanden, welche es ermöglicht, aufgrund ihrer Eigenschaften eine Verbindung von zwei Materialien zu ermöglichen, welche entweder an sich aufgrund ihrer chemischen Zusammensetzung nur sehr schlecht durch Klebstoffe miteinander verbunden werden können oder die unter speziellen Umgebungsbedingungen schlecht miteinander verbunden werden können. Haftvermittler schaffen bei schlecht verklebbaren Werkstoffen oder Oberflächen eine Haftbrücke zwischen Werkstoff und Klebstoff oder sie verbessern die Haftung, wenn besondere Anforderungen vorliegen, wie z. B. hohe Feucht-/Nassfestigkeit oder Temperaturbelastungen. Haftvermittler werden also verwendet, wenn verschiedenartige Werkstoffe miteinander verklebt werden müssen, die an sich nicht direkt durch einen Klebstoff miteinander verbunden werden können, oder wenn ein bestimmter Klebstoff wegen seiner besonderen Eigenschaften eingesetzt werden soll, aber auf einem der beiden Klebepartner nicht ausreichend gut haftet.An "adhesion promoter" is generally understood to mean a substance which, due to its properties, makes it possible to bond two materials which, due to their chemical composition, can only be bonded to one another very poorly due to their chemical composition or which are poorly bonded to one another under special environmental conditions can be connected. Adhesion promoters create a bonding bridge between the material and the adhesive in materials or surfaces that are difficult to bond, or they improve adhesion if there are special requirements, such as B. high moisture / wet strength or temperature loads. Adhesion promoters are used when different types of materials have to be glued together, which cannot be directly connected by an adhesive, or when a certain adhesive is to be used because of its special properties but does not adhere sufficiently well to one of the two adhesive partners.

Durch die erfindungsgemäß vorgesehene Verwendung eines nicht-klebrigen Haftvermittlers wird ein Flächenabdichtelement für Baukörper zur Verfügung gestellt, dessen textile Schicht keinen Klebstoff aufweist. Aus diesem Grund sind keine weiteren Maßnahmen erforderlich, um die Flächenabdichtung während der Bauphase zu schützen. Selbst bei starker Belastung der Flächenabdichtung durch sich auf der textilen Oberfläche der Flächenabdichtung bewegende Arbeiter kommt es zu keiner Beschädigung der Flächenabdichtung, da es zu keinerlei, auch nicht kurzfristigem, Verkleben von z.B. Schuhsohlen mit der Flächenabdichtung kommen kann.The use of a non-tacky adhesion promoter provided according to the invention provides a surface sealing element for building structures, the textile layer of which does not have any adhesive. For this reason, no further measures are required to protect the surface waterproofing during the construction phase. Even when the surface sealing is heavily loaded by workers moving on the textile surface of the surface sealing, the surface sealing is not damaged, since there is no, even short-term, sticking of e.g. Shoe soles can come with the surface sealing.

Zudem kann durch die Verwendung eines nicht-klebrigen Haftvermittlers die textile Schicht dünner und damit kostengünstiger ausgebildet werden. Auch dies ist auf die Tatsache zurückzuführen, dass auf der Baustelle keine Beschädigungen der textilen Schicht durch Verklebungen auftreten. Durch den Haftvermittler wird zudem die Oberfläche der Fasern der textilen Schicht vergrößert, wodurch dem Ortbeton mehr Haftfläche zur Verfügung steht, wodurch zugleich die Haftung zwischen Fasern und Beton und damit zwischen Flächenabdichtelement und Beton verbessert wird.In addition, through the use of a non-sticky adhesion promoter, the textile layer can be made thinner and therefore more cost-effective. This is also due to the fact that there is no damage to the textile layer due to adhesions on the construction site. The adhesion promoter also increases the surface area of the fibers of the textile layer, which means that more adhesive surface is available for the in-situ concrete, which at the same time improves the adhesion between fibers and concrete and thus between surface sealing element and concrete.

Durch die Verwendung von Haftvermittlern anstelle der aus dem Stand der Technik bekannten Klebstoffe wird es möglich, die textile Schicht des Flächenabdichtelements mit einer geringeren Dicke auszustatten, was mit den bereits angesprochenen Vorteilen bezüglich der Hinterlaufsicherheit verbunden ist. Daher kann auch das gesamte Flächenabdichtelement mit einer geringeren Dicke realisiert werden, wodurch Material eingespart, erforderlicher Lagerplatz reduziert und Transportkosten gesenkt werden.By using adhesion promoters instead of the adhesives known from the prior art, it becomes possible to provide the textile layer of the surface sealing element with a smaller thickness, which is associated with the advantages already mentioned with regard to hindlimb security. Therefore, the entire surface sealing element can be realized with a smaller thickness, whereby material saved, required storage space reduced and transport costs reduced.

Überraschenderweise hat sich zudem gezeigt, dass durch Tränken eines textilen Flächengebildes mit einem Imprägnierungsmittel, welches in Form einer Lösung, Emulsion oder Dispersion einen nicht-klebrigen Haftvermittler enthält, und anschließendem Trocknen des textilen Flächengebildes ein deutlich besser Verbund erzeugt werden kann, als es bei einer Flächenabdichtung bestehend aus einem Träger und einer thermisch verbundenen, mit Klebstoff getränkten, textilen Schicht möglich ist.Surprisingly, it has also been shown that by impregnating a textile fabric with an impregnation agent, which contains a non-sticky adhesion promoter in the form of a solution, emulsion or dispersion, and then drying the textile fabric, a significantly better bond can be created than with a Surface sealing consisting of a carrier and a thermally bonded textile layer impregnated with adhesive is possible.

Das erfindungsgemäße Flächenabdichtelement zeigt darüberhinaus ganz ausgezeichnete Eigenschaften bei der Abdichtung von Baukörpern gegen Wasser und Gas. Durch den flächigen Träger wird das Eindringen von Gas und/oder Wasser verhindert, es handelt sich also um einen im Wesentlichen gas- und/oder wasserdichten flächigen Träger.The surface sealing element according to the invention also shows very excellent properties in the sealing of structures against water and gas. The planar support prevents gas and / or water from penetrating, so it is a substantially gas- and / or water-tight planar support.

Die erfindungsgemäß als textile Schicht verwendeten Vliese sind zu günstigen Preisen verfügbar, weisen die erforderliche Flexibilität auf und stellen eine große spezifische Oberfläche zur Verfügung, an der der Haftvermittler haften kann. Durch die in Vliesen vorhandenen, sehr kleinen Durchbrechungen kann das Imprägnierungsmittel durchtreten und steht nach dem Trockenen als Haftvermittler an der dem flächigen Träger abgewandten Oberfläche zur Anbindung an den Ortbeton zur Verfügung. Da die textile Schicht vollflächig mit dem nicht-klebrigen Haftvermittler imprägniert ist, steht über die gesamte Oberfläche des Flächenabdichtelements Haftvermittler zur Verfügung, der beim Vergießen des Ortbetons einen Verbund mit dem Frischbeton eingeht.The nonwovens used according to the invention as a textile layer are available at low prices, have the necessary flexibility and provide a large specific surface area to which the adhesion promoter can adhere. The impregnation agent can pass through the very small openings in the fleece and, after drying, is available as an adhesion promoter on the surface facing away from the flat carrier for connection to the in-situ concrete. Since the textile layer is completely impregnated with the non-sticky adhesion promoter, adhesion promoter is available over the entire surface of the surface sealing element, which forms a bond with the fresh concrete when the in-situ concrete is poured.

Die vorliegende Erfindung stellt Flächenabdichtelemente mit einer Dicke kleiner 1,5 mm und einem aufkaschierten Vlies zur Verfügung. Aus dem Stand der Technik ist keine derart dünne Abdichtungsfolie bekannt, bei der zugeleich die erforderliche Hinterlaufsicherheit gegeben ist.The present invention provides surface sealing elements with a thickness of less than 1.5 mm and a laminated fleece. The prior art does not know of such a thin sealing film which also provides the necessary rear-run security.

Bevorzugt handelt es sich bei der textilen Schicht um ein Vlies, welches aus Polyester besteht. Polyester-Vliese sind zu günstigen Preisen verfügbar und weisen besonders günstige Eigenschaften bezüglich Flexibilität und spezifischer Oberfläche auf.The textile layer is preferably a fleece made of polyester. Polyester fleeces are available at low prices and have particularly favorable properties in terms of flexibility and specific surface.

Gemäß einer bevorzugten Ausführungsform weist die textile Schicht eine Flächenmasse von 20 g/m2 bis 70 g/m2, bevorzugt 35 g/m2 bis 60 g/m2, besonders bevorzugt rund 50 g/m2 auf. Durch ein Vlies mit einer derart geringen Flächenmasse und damit auch einer geringen Dicke kann die Hinterlaufsicherheit der Flächenabdichtung verbessert werden. Der Grund hierfür liegt darin, dass der Beton bei Verwendung einer dünnen textilen Schicht leichter bis an den flächigen Träger vordringen kann. Dadurch wird das Entstehen auch kleinster Hohlräume verhindert, sodass nachfolgend kein Raum für einen Wassereintritt zur Verfügung steht.According to a preferred embodiment, the textile layer has a mass per unit area of 20 g / m 2 to 70 g / m 2 , preferably 35 g / m 2 to 60 g / m 2 , particularly preferably around 50 g / m 2 . A fleece with such a low mass per unit area and thus also a small thickness can improve the security of the surface seal from behind. The reason for this is that if a thin textile layer is used, the concrete can more easily penetrate to the flat support. This is what creates emergence prevents even the smallest cavities, so that there is subsequently no space for water to enter.

Erfindungsgemäß handelt es sich bei dem flächigen Träger um eine Kunststofffolie. Eine Kunststofffolie erfüllt das Erfordernis einer ausreichenden Gas- und Wasserundurchlässigkeit und weist vorteilhafterweise genügend Flexibilität auf, um ein Rollen des Flächenabdichtelements zu ermöglichen.According to the invention, the flat carrier is a plastic film. A plastic film fulfills the requirement of sufficient gas and water impermeability and advantageously has sufficient flexibility to enable the surface sealing element to roll.

Bei der Kunststofffolie handelt es sich bevorzugt um eine Kunststofffolie bestehend aus Polyvinylchlorid, Polyethylen, Polypropylen, Propylenoxid, Polyurethan, insbesondere thermoplastisches Polyurethan, oder einem thermoplastischen Elastomer auf Olefinbasis. Durch eine Kunststofffolie aus den genannten Materialien ergeben sich für das Flächenabdichtelement sehr gute Eigenschaften bei der Abdichtung von Baukörpern gegen Wasser und Gas. Gleichzeitig wird ein Flächenabdichtelement erhalten, welches die zu einem Aufrollen erforderliche Flexibilität aufweist. Versuche haben gezeigt, dass eine Kunststofffolie aus Polypropylen als flächiger Träger die besten Eigenschaften im Hinblick auf das Verhindern des Eindringens von Gas und/oder Wasser aufweist.The plastic film is preferably a plastic film consisting of polyvinyl chloride, polyethylene, polypropylene, propylene oxide, polyurethane, in particular thermoplastic polyurethane, or a thermoplastic elastomer based on olefin. A plastic film made of the materials mentioned results in very good properties for the surface sealing element in the sealing of structures against water and gas. At the same time, a surface sealing element is obtained which has the flexibility required for rolling up. Tests have shown that a plastic film made of polypropylene as a flat carrier has the best properties with regard to preventing the penetration of gas and / or water.

Vorteilhafterweise weist eine als flächiger Träger verwendete Kunststofffolie eine Dicke von 300 µm bis 1200 µm, bevorzugt eine Dicke von 500 µm bis 800 µm auf. Eine Kunststofffolie dieser Dicke weist nicht nur eine ausreichende Gas- und Wasserundurchlässigkeit auf sondern besitzt auch genügend Flexibilität, um ein Rollen des Flächenabdichtelements zu ermöglichen.A plastic film used as a flat carrier advantageously has a thickness of 300 μm to 1200 μm, preferably a thickness of 500 μm to 800 μm. A plastic film of this thickness not only has sufficient gas and water impermeability but also has sufficient flexibility to enable the surface sealing element to roll.

Der flächige Träger weist bevorzugt eine Flächenmasse von 200 g/m2 bis 700 g/m2, besonders bevorzugt 350 g/m2 bis 600 g/m2, insbesondere bevorzugt von rund 500 g/m2 auf. In Bezug auf die für den flächigen Träger eines Flächenabdichtelements gewünschten Eigenschaften hat sich herausgestellt, dass ein flächiger Träger aus dem Kunststoff Polypropylen mit einem Flächengewicht von 500 g/m2 am besten geeignet ist.The flat carrier preferably has a weight per unit area of 200 g / m 2 to 700 g / m 2 , particularly preferably 350 g / m 2 to 600 g / m 2 , particularly preferably around 500 g / m 2 . With regard to the properties desired for the flat support of a surface sealing element, it has been found that a flat support made of the plastic polypropylene with a weight per unit area of 500 g / m 2 is most suitable.

Bevorzugt wird zur Herstellung des Flächenabdichelements als Imprägnierungsmittel für das textile Flächengebilde eine Kunststoffdispersion, Latex-Dispersion, Harz, Epoxid-Harz, vernetzbares Kunstharz, Latex, Latex-Emulsion, Zement-Klebemörtel, Naturkautschuk, Synthesekautschuk, organofunktionelles Silan, Bitumen-Kautschuk, Butyl-Kautschuk, Bitumen oder ein Tiefgrund, insbesondere ein Tiefgrund auf Basis von Alkyd- oder Acrylharz, oder verwendet oder ein eines oder mehrere dieser Materialien enthaltendes Imprägnierungsmittel. Die genannten Imprägnierungsmittel haben sich als besonders gut geeignet für das Imprägnieren des textilen Flächengebildes gezeigt. Der in dem Imprägnierungsmittel enthaltene Haftvermittler liegt nach dem Trocknen gleichmäßig über die gesamte Oberfläche des textilen Flächengebildes und nach dem thermischen Verbinden gleichmäßig über die gesamte Oberfläche der textilen Schicht verteilt vor.A plastic dispersion, latex dispersion, resin, epoxy resin, crosslinkable synthetic resin, latex, latex emulsion, cement adhesive mortar, natural rubber, synthetic rubber, organofunctional silane, bitumen rubber, butyl is preferred as the impregnation agent for the textile fabric for the production of the surface sealing element - Rubber, bitumen or a deep primer, in particular a deep primer based on alkyd or acrylic resin, or used or an impregnating agent containing one or more of these materials. The impregnating agents mentioned have been shown to be particularly suitable for impregnating the textile fabric. The adhesion promoter contained in the impregnation agent lies evenly after drying distributed over the entire surface of the textile fabric and evenly distributed over the entire surface of the textile layer after the thermal bonding.

Bevorzugt weist das Flächenabdichtelement eine Dicke I ≤ 1,2 mm auf. Durch die Verwendung von Haftvermittlern anstelle der aus dem Stand der Technik bekannten Klebstoffe wird es möglich, die textile Schicht des Flächenabdichtelements mit einer geringeren Dicke auszustatten, was mit den bereits angesprochenen Vorteilen bezüglich der Hinterlaufsicherheit verbunden ist. Daher kann auch das gesamte Flächenabdichtelement mit einer geringeren Dicke realisiert werden, wodurch Material eingespart, erforderlicher Lagerplatz reduziert und Transportkosten gesenkt werden. Diese Vorteile treten besonders deutlich zu Tage, wenn das Flächenabdichtelement eine Dicke von I ≤ 1,2 mm aufweist.The surface sealing element preferably has a thickness I 1.2 mm. By using adhesion promoters instead of the adhesives known from the prior art, it is possible to provide the textile layer of the surface sealing element with a smaller thickness, which is associated with the advantages already mentioned with regard to hindlimb security. Therefore, the entire surface sealing element can also be implemented with a smaller thickness, as a result of which material is saved, the required storage space is reduced and transport costs are reduced. These advantages become particularly evident when the surface sealing element has a thickness of I 1.2 mm.

Erfindungsgemäß weist die textile Schicht des Flächenabdichtelements auf ihrer dem flächigen Träger abgewandten Oberfläche noppenartige Erhebungen auf. Durch die Ausbildung von Noppen auf der Oberseite der textilen Schicht kann deren Oberfläche zusätzlich vergrößert werden, was zu einer verbesserten Anbindung an den Ortbeton führt. Durch die auf der dem flächigen Träger abgewandten Oberfläche der textilen Schicht angeordneten noppenartigen Erhebungen wird ein mechanischer Verbund mit dem Frischbeton sichergestellt. Die besonders guten Eigenschaften eines solchen Flächenabdichtelements sind darauf zurückzuführen, dass das Flächenabdichtelement gleichzeitig einen mechanischen Verbund und einen Haftverbund mit dem Frischbeton eingeht. Die noppenartigen Erhebungen sind bevorzugt halbkugelförmig ausgebildet, grundsätzlich können jedoch beliebig geformte Erhöhungen verwendet werden.According to the invention, the textile layer of the surface sealing element has knob-like elevations on its surface facing away from the flat carrier. By forming knobs on the top of the textile layer, its surface can also be enlarged, which leads to an improved connection to the in-situ concrete. A mechanical bond with the fresh concrete is ensured by the knob-like elevations arranged on the surface of the textile layer facing away from the flat carrier. The particularly good properties of such a surface sealing element are due to the fact that the surface sealing element simultaneously forms a mechanical bond and an adhesive bond with the fresh concrete. The knob-like elevations are preferably hemispherical, but in principle any shaped elevations can be used.

Zusätzlich oder alternativ zu den noppenartigen Erhebungen der textilen Schicht des Flächenabdichtelements weist der flächige Träger auf seiner der textilen Schicht abgewandten Oberfläche noppenartige Erhebungen auf. Die noppenartigen Erhebungen sind bevorzugt halbkugelförmig ausgebildet, grundsätzlich können jedoch beliebig geformte Erhöhungen verwendet werden. Bei seinem Einsatz auf der Baustelle wird das Flächenabdichtelement üblicherweise an einer Schalungswandung angebracht, wobei der flächige Träger des Flächenabdichtelements mit der Schalungswandung in Kontakt steht. Noppenartige Erhebungen auf der Oberseite des flächigen Trägers bewirken eine geringere Kontaktfläche zur Schalungswandung. Beim Anbringen des Flächenabdichtelements an der Schalung wird das Flächenabdichtelement in der Regel über die Schalung gezogen. Im Falle von noppenartige Erhebungen werden die dabei auftretenden Reibungskräfte nicht von dem gesamten flächigen Träger aufgenommen, sondern im Wesentlichen von den noppenartigen Erhebungen. Zudem haftet das Flächenabdichtelement nach dem Vergießen des Betons häufig stark an der Schalungswandung. Durch die noppenartigen Erhebungen wird die Kontaktfläche zwischen Schalungswandung und Flächenabdichtelement reduziert und dadurch das Entfernen der Schalung nach dem Aushärten des Betons erleichtert. Auf das Flächenabdichtelement wirken somit geringere Kräfte, wodurch Beschädigungen vermieden werden.In addition or as an alternative to the knob-like elevations of the textile layer of the surface sealing element, the flat carrier has knob-like elevations on its surface facing away from the textile layer. The knob-like elevations are preferably hemispherical, but in principle any shaped elevations can be used. When used on the construction site, the surface sealing element is usually attached to a formwork wall, with the planar support of the surface sealing element being in contact with the formwork wall. Knob-like elevations on the upper side of the flat carrier result in a smaller contact surface with the formwork wall. When the surface sealing element is attached to the formwork, the surface sealing element is usually pulled over the formwork. In the case of knob-like elevations, the frictional forces that occur are not absorbed by the entire flat carrier, but essentially by the knob-like elevations. In addition, the surface sealing element often adheres strongly to the formwork wall after the concrete has been poured. Due to the knob-like elevations, the contact area between Reduced formwork wall and surface sealing element, thereby making it easier to remove the formwork after the concrete has hardened. Lower forces therefore act on the surface sealing element, which prevents damage.

Gemäß einer besonders bevorzugten Ausführungsform weist sowohl die textile Schicht des Flächenabdichtelements auf ihrer dem flächigen Träger abgewandten Oberfläche als auch der flächige Träger auf seiner der textilen Schicht abgewandten Oberfläche noppenartige Erhebungen auf.According to a particularly preferred embodiment, both the textile layer of the surface sealing element on its surface facing away from the flat support and the flat support on its surface facing away from the textile layer have knob-like elevations.

Zusätzlich oder alternativ zu den noppenartigen Erhebungen der textilen Schicht des Flächenabdichtelements und zusätzlich oder alternativ zu den noppenartigen Erhebungen des flächigen Trägers weist der flächige Träger auf seiner der textilen Schicht abgewandten Oberfläche noppenförmige Vertiefungen auf. Die noppenförmige Vertiefungen sind bevorzugt halbkugelförmig ausgebildet, grundsätzlich können jedoch beliebig geformte Vertiefungen verwendet werden. Durch das nachfolgend noch näher beschriebene Einbringen der noppenförmigen Vertiefungen in die der textilen Schicht abgewandte Oberfläche des flächigen Trägers bilden sich zwangsweise noppenartige Erhebungen auf der der textilen Schicht zugewandten Oberfläche des flächigen Trägers. Beim Vergießen des Ortbetons dringt dieser durch die textile Schicht bis hin zu dem flächigen Träger in das Flächenabdichtelement ein. Durch die noppenartigen Erhebungen auf der der textilen Schicht zugewandten Oberfläche des flächigen Trägers entsteht eine zusätzliche Verzahnung zwischen flächigem Träger und Beton.In addition or as an alternative to the knob-like elevations of the textile layer of the surface sealing element and in addition or as an alternative to the knob-like elevations of the planar carrier, the planar carrier has knob-shaped depressions on its surface facing away from the textile layer. The knob-shaped depressions are preferably hemispherical, but in principle any shaped depressions can be used. As a result of the introduction of the knob-shaped depressions, described in more detail below, into the surface of the flat carrier facing away from the textile layer, knob-like elevations are inevitably formed on the surface of the flat carrier facing the textile layer. When the in-situ concrete is poured, it penetrates the surface sealing element through the textile layer up to the flat carrier. The nub-like elevations on the surface of the flat carrier facing the textile layer create additional interlocking between the flat carrier and concrete.

Das erfindungsgemäße Flächenabdichtelement weist eine hohe Flexibilität auf, wodurch ein Aufwickeln und dadurch ein Transport in Form von Rollen ermöglicht werden. Vorzugsweise wird das Flächenabdichtelement in Form von 50 Meter langen und 1,0 Meter bis 2,0 Meter breiten Bahnen auf Rollen aufgewickelt, wodurch das Gewicht einer einzelnen Rolle in einem Bereich bleibt, der eine einfache Handhabung auf der Baustelle ermöglicht. Vorzugsweise soll das Gewicht einer Rolle 50 kg nicht überschreiten.
Die vorliegende Erfindung umfasst auch Verfahren zur Herstellung eines der oben beschriebenen Flächenabdichtelemente.The surface sealing element according to the invention has a high degree of flexibility, as a result of which it can be rolled up and thus transported in the form of rolls. The surface sealing element is preferably wound up on rolls in the form of strips 50 meters long and 1.0 to 2.0 meters wide, so that the weight of a single roll remains in a range that enables easy handling on the construction site. The weight of a roll should preferably not exceed 50 kg.
The present invention also encompasses methods of manufacturing one of the surface sealing elements described above.

Die vorliegende Erfindung umfasst auch ein Verfahren zur Herstellung eines Flächenabdichtelements für Baukörper, wobei das Flächenabdichtelement einen flächigen Träger aufweist, wobei es sich bei dem flächigen Träger um eine Kunststofffolie handelt, und eine auf dem flächigen Träger angeordnete, untrennbar mit dem flächigen Träger verbundene, textile Schicht, wobei es sich bei der textilen Schicht um ein Vlies handelt, wobei die textile Schicht vollflächig mit einem nicht-klebrigen Haftvermittler imprägniert vorliegt, und wobei das Flächenabdichtelement eine Dicke I ≤ 1,5 mm aufweist, wobei das Verfahren die Schritte umfasst a) Bereitstellen eines flächigen Trägers, wobei es sich bei dem flächigen Träger um eine Kunststofffolie handelt, b) Bereitstellen eines textilen Flächengebildes, wobei es sich bei dem textilen Flächengebilde um ein Vlies handelt, c) Durchtränken des textilen Flächengebildes mit einem einen nicht-klebrigen Haftvermittler enthaltenden Imprägnierungsmittel, wobei das Imprägnierungsmittel eine dynamische Viskosität η ≤ 500 mPas aufweist und das Durchtränken des textilen Flächengebildes bei Raumtemperatur erfolgt, d) Trocknen des mit dem einen nicht-klebrigen Haftvermittler enthaltenden Imprägnierungsmittel getränkten textilen Flächengebildes, e) Thermisches Verbinden des getrockneten, mit einem nicht-klebrigen Haftvermittler imprägnierten, textilen Flächengebildes mit dem flächigen Träger unter Ausbildung einer auf dem flächigen Träger angeordneten, untrennbar mit dem flächigen Träger verbundenen, vollflächig mit einem nicht-klebrigen Haftvermittler imprägnierten, textilen Schicht.The present invention also comprises a method for producing a surface sealing element for buildings, wherein the surface sealing element has a flat carrier, the flat carrier being a plastic film, and a textile which is arranged on the flat carrier and inseparably connected to the flat carrier Layer, the textile layer being a fleece, the textile layer being completely impregnated with a non-sticky adhesion promoter, and the surface sealing element having a thickness I ≤ 1.5 mm, the method comprising the steps of a) Providing a flat carrier, whereby it is the flat carrier is a plastic film, b) providing a textile flat structure, the textile flat structure being a fleece, c) impregnating the textile flat structure with an impregnating agent containing a non-sticky adhesion promoter, the impregnating agent having a dynamic viscosity η ≤ 500 mPas and the impregnation of the textile fabric takes place at room temperature, d) drying of the textile fabric impregnated with the impregnating agent containing a non-sticky adhesion promoter, e) thermal bonding of the dried, with a non-sticky adhesion promoter impregnated, textile fabric with the flat carrier with the formation of a textile layer arranged on the flat carrier, inseparably connected to the flat carrier and impregnated over the entire surface with a non-tacky adhesion promoter.

Unter dem Ausdruck "mit Imprägnierungsmittel durchtränkt" wird im Rahmen des vorliegenden Textes ein Zustand verstanden, bei dem das textile Flächengebilde eine Menge an Imprägnierungsmittel aufgenommen hat, die über oder zumindest nahe an der maximalen Aufnahmekapazität des textilen Flächengebildes für das entsprechende Imprägnierungsmittel liegt. Dadurch wird sichergestellt, dass nach dem Trocknen des textilen Flächengebildes die mit dem flächigen Träger verbundene textile Schicht vollflächig mit dem nicht-klebrigen Haftvermittler imprägniert ist, sodass über die gesamte Oberfläche des Flächenabdichtelements Haftvermittler zur Verfügung steht, der beim Vergießen des Ortbetons einen Verbund mit dem Frischbeton eingeht.The expression "impregnated with impregnation agent" is understood in the context of the present text to mean a state in which the textile fabric has absorbed an amount of impregnation agent which is above or at least close to the maximum absorption capacity of the textile fabric for the corresponding impregnation agent. This ensures that after the textile fabric has dried, the textile layer connected to the flat carrier is completely impregnated with the non-sticky adhesion promoter, so that adhesion promoter is available over the entire surface of the surface sealing element, which is bonded to the when the in-situ concrete is poured Fresh concrete enters.

Die in den erfindungsgemäßen Verfahren verwendeten Imprägnierungsmittel weisen eine dynamische Viskosität η ≤ 500 mPas auf. Im Unterschied zu den im Stand der Technik verwendeten Klebstoffen, die in der Regel eine Viskosität von über 3000 mPas besitzen, weisen die gemäß der vorliegenden Erfindung eingesetzten Imprägnierungsmittel mit den darin enthaltenen Haftvermittlern eine deutlich geringere dynamische Viskosität auf. Dadurch wird das Durchtränken des textilen Flächengebildes bzw. das Durchtränken der textilen Schicht mit dem einen nicht-klebrigen Haftvermittler enthaltenden Imprägnierungsmittel deutlich vereinfacht. Insbesondere wird es möglich, das Durchtränken des textilen Flächengebildes bzw. das Durchtränken der textilen Schicht bei Raumtemperatur durchzuführen, was gegenüber den Lösungen des Standes der Technik, bei denen hochviskoses Bitumen oder ähnliche Stoffe zum Einsatz kommen, zu deren Verarbeitung Temperaturen über 150°C erforderlich sind, eine deutliche Vereinfachung des Verfahrens und auch eine deutliche Energieeinsparung bedeutet.The impregnating agents used in the process according to the invention have a dynamic viscosity η 500 mPas. In contrast to the adhesives used in the prior art, which generally have a viscosity of over 3000 mPas, the impregnation agents used according to the present invention with the adhesion promoters contained therein have a significantly lower dynamic viscosity. This significantly simplifies the impregnation of the textile fabric or the impregnation of the textile layer with the impregnation agent containing a non-sticky adhesion promoter. In particular, it is possible to impregnate the textile fabric or impregnate the textile layer at room temperature, which, compared to the solutions of the prior art, in which highly viscous bitumen or similar substances are used, requires temperatures above 150 ° C. for their processing are, a significant simplification of the process and also means significant energy savings.

Durch das oben angegebene Verfahren lassen sich die erfindungsgemäßen Flächenabdichtelemente schnell, einfach und kostengünstig herstellen. Ein auf die genannte Art hergestelltes Flächenabdichtelement kann direkt nach dem Trocknen problemlos aufgerollt werden ohne dabei zu verkleben.The surface sealing elements according to the invention can be produced quickly, simply and inexpensively by the method specified above. A surface sealing element produced in this way can be rolled up without any problems immediately after drying without sticking.

Das durchtränkte und nachfolgend getrocknete textile Flächengebilde kann zudem vor dem thermischen Verbinden mit dem flächigen Träger problemlos aufgerollt und zwischengelagert werden. Es ist also nicht zwingend erforderlich, bei der Herstellung des Flächenabdichtelements alle Produktionsschritte direkt nacheinander durchzuführen. Dadurch wird es beispielsweise möglich, einzelne Arbeitsschritte örtlich voneinander getrennt durchzuführen, wodurch ein kostengünstiges Outsourcen möglich wird. Bei den aus dem Stand der Technik bekannten Flächenabdichtelementen ist ein solches Vorgehen wegen der Klebrigkeit der textilen Schicht nicht möglich.The soaked and subsequently dried flat textile structure can also be rolled up and temporarily stored prior to thermal bonding with the flat carrier. It is therefore not absolutely necessary to carry out all production steps directly one after the other in the manufacture of the surface sealing element. This makes it possible, for example, to carry out individual work steps separately from one another, which makes cost-effective outsourcing possible. In the case of the surface sealing elements known from the prior art, such a procedure is not possible because of the stickiness of the textile layer.

Das thermische Verbinden von textilem Flächengebilde und flächigem Träger erfolgt nach dem Imprägnieren des textilem Flächengebildes. Die so erhaltenen Flächenabdichtelemente weisen verbesserte Eigenschaften auf.The thermal bonding of the flat textile structure and the flat carrier takes place after the impregnation of the flat textile structure. The surface sealing elements obtained in this way have improved properties.

Die nachfolgend näher beschriebenen bevorzugen Ausführungsformen beziehen sich auf das erfindungsgemäße Verfahren, bei dem das thermische Verbinden von textilem Flächengebilde und flächigem Träger nach dem Imprägnieren des textilem Flächengebildes durchgeführt wird.The preferred embodiments described in more detail below relate to the method according to the invention, in which the thermal bonding of the flat textile structure and the flat carrier is carried out after the impregnation of the flat textile structure.

Bevorzugt wird nach Schritt e) der Schritt f) Durchlaufen des in Schritt e) erhaltenen Flächenabdichtelements durch eine Anordnung von Kalanderwalzen, wobei zumindest eine mit der textilen Schicht in Kontakt tretende Kalanderwalze noppenförmige Vertiefungen aufweist, durchgeführt. Durch dieses Verfahren kann ein Flächenabdichtelement hergestellt werden, dessen textile Schicht auf ihrer dem flächigen Träger abgewandten Oberfläche noppenartige Erhebungen aufweist, was mit den oben bereits beschriebenen Vorteilen verbunden ist. Die noppenartigen Erhebungen der textilen Schicht sind bevorzugt halbkugelförmig ausgebildet, grundsätzlich können jedoch beliebig geformte Erhöhungen verwendet werden. Zur Herstellung brauchen die Kalanderwalzen lediglich mit den entsprechenden noppenförmigen Vertiefungen ausgestattet zu werden.Preferably, after step e), step f) running through the surface sealing element obtained in step e) through an arrangement of calender rolls, at least one calender roll coming into contact with the textile layer having knob-shaped depressions. With this method, a surface sealing element can be produced, the textile layer of which has knob-like elevations on its surface facing away from the flat carrier, which is associated with the advantages already described above. The knob-like elevations of the textile layer are preferably hemispherical, but in principle any shaped elevations can be used. For production, the calender rolls only need to be equipped with the corresponding knob-shaped depressions.

Ebenfalls bevorzugt wird nach Schritt e) der Schritt f) Durchlaufen des in Schritt e) erhaltenen Flächenabdichtelements durch eine Anordnung von Kalanderwalzen, wobei zumindest eine mit der textilen Schicht in Kontakt tretende Kalanderwalze noppenförmige Vertiefungen aufweist und zumindest eine mit dem flächigen Träger in Kontakt tretende Kalanderwalze noppenförmige Vertiefungen aufweist, durchgeführt. Durch dieses Verfahren kann ein Flächenabdichtelement hergestellt werden, bei dem sowohl die textile Schicht des Flächenabdichtelements auf ihrer dem flächigen Träger abgewandten Oberfläche als auch der flächige Träger auf seiner der textilen Schicht abgewandten Oberfläche noppenartige Erhebungen aufweisen. Die noppenartigen Erhebungen sind bevorzugt halbkugelförmig ausgebildet, grundsätzlich können jedoch beliebig geformte Erhöhungen verwendet werden. Zur Herstellung brauchen die Kalanderwalzen lediglich mit den entsprechenden noppenförmigen Vertiefungen ausgestattet zu werden.Also preferred after step e) is step f) passing the surface sealing element obtained in step e) through an arrangement of calender rolls, at least one calender roll coming into contact with the textile layer having knob-shaped depressions and at least one calender roll coming into contact with the flat carrier Has knob-shaped depressions carried out. With this method, a surface sealing element can be produced in which both the textile layer of the surface sealing element on its surface facing away from the flat support and the flat support on its surface facing away from the textile layer have knob-like elevations. The knob-like elevations are preferably hemispherical, but in principle they can be of any shape Increases are used. For production, the calender rolls only need to be equipped with the corresponding knob-shaped depressions.

Ebenfalls bevorzugt wird nach Schritt e) der Schritt f) Durchlaufen des in Schritt e) erhaltenen Flächenabdichtelements durch eine Anordnung von Kalanderwalzen, wobei zumindest eine mit der textilen Schicht in Kontakt tretende Kalanderwalze noppenförmige Vertiefungen aufweist und zumindest eine mit dem flächigen Träger in Kontakt tretende Kalanderwalze noppenartige Erhöhungen aufweist, durchgeführt. Bei diesem Verfahren wird ein Flächenabdichtelement hergestellt, das mit noppenartigen Erhebungen auf der dem flächigen Träger abgewandten Seite der textilen Schicht ausgebildet ist. Diese noppenartigen Erhebungen sind als Vertiefungen auch in dem flächigen Träger vorhanden.Also preferred after step e) is step f) passing the surface sealing element obtained in step e) through an arrangement of calender rolls, at least one calender roll coming into contact with the textile layer having knob-shaped depressions and at least one calender roll coming into contact with the flat carrier Has knob-like elevations carried out. In this method, a surface sealing element is produced which is formed with knob-like elevations on the side of the textile layer facing away from the flat carrier. These knob-like elevations are also present as depressions in the flat carrier.

Bevorzugt wird als Imprägnierungsmittel eine Kunststoffdispersion, Latex-Dispersion, Harz, Epoxid-Harz, vernetzbares Kunstharz, Latex, Latex-Emulsion, Zement-Klebemörtel, Naturkautschuk, Synthesekautschuk, organofunktionelles Silan, Bitumen-Kautschuk, Butyl-Kautschuk, Bitumen oder ein Tiefgrund, insbesondere ein Tiefgrund auf Basis von Alkyd- oder Acrylharz, verwendet oder es wird ein eines oder mehrere dieser Materialien enthaltendes Imprägnierungsmittel verwendet. Die genannten Imprägnierungsmittel haben sich als besonders gut geeignet für das Imprägnieren des textilen Flächengebildes gezeigt. Der in dem Imprägnierungsmittel enthaltene Haftvermittler liegt nach dem Trocknen gleichmäßig über die gesamte Oberfläche der textilen Schicht verteilt vor.A plastic dispersion, latex dispersion, resin, epoxy resin, cross-linkable synthetic resin, latex, latex emulsion, cement adhesive mortar, natural rubber, synthetic rubber, organofunctional silane, bitumen rubber, butyl rubber, bitumen or an indentation is preferred as the impregnating agent, in particular a deep primer based on alkyd or acrylic resin, or an impregnating agent containing one or more of these materials is used. The impregnating agents mentioned have been shown to be particularly suitable for impregnating the textile fabric. The adhesion promoter contained in the impregnation agent is distributed evenly over the entire surface of the textile layer after drying.

Gemäß einer besonders bevorzugten Ausführungsform weist das Imprägnierungsmittel eine dynamische Viskosität η ≤ 50 mPas, bevorzugt η ≈ 10 mPas auf. Im Unterschied zu den im Stand der Technik verwendeten Klebstoffen, die in der Regel eine Viskosität von über 3000 mPas aufweisen, besitzen die gemäß der vorliegenden Erfindung eingesetzten Imprägnierungsmittel mit den darin enthaltenen Haftvermittlern eine deutlich geringere dynamische Viskosität. Ein im Rahmen der vorliegenden Erfindung besonders bevorzugt als Imprägnierungsmittel eingesetzter Tiefgrund weist beispielsweise eine dynamische Viskosität von 10 mPas auf.According to a particularly preferred embodiment, the impregnation agent has a dynamic viscosity η 50 mPas, preferably η ≈ 10 mPas. In contrast to the adhesives used in the prior art, which generally have a viscosity of more than 3000 mPas, the impregnation agents used according to the present invention with the adhesion promoters contained therein have a significantly lower dynamic viscosity. A primer used particularly preferably as an impregnating agent in the context of the present invention has, for example, a dynamic viscosity of 10 mPas.

Durch den Einsatz eines Imprägnierungsmittels mit niedriger Viskosität ist ein Durchtränken des textilen Flächengebildes sehr einfach möglich, da die Poren und Öffnungen des textilen Flächengebildes im Gegensatz zur Verwendung von Klebstoff nicht verstopfen. Bei der Verwendung von Klebstoff verbleiben im textilen Flächengebilde aufgrund von mit Klebstoff verschlossener Poren immer klebstofffreie Bereiche zurück.By using an impregnating agent with low viscosity, it is very easy to soak the textile fabric, since the pores and openings of the textile fabric do not clog, in contrast to the use of adhesive. When using adhesive, there are always adhesive-free areas in the textile fabric due to the pores closed with adhesive.

Bevorzugt weist das Imprägnierungsmittel eine Dichte ρ von 0,98 g/cm3 ≤ ρ ≤ 1,08 g/cm3, besonders bevorzugt 1,01 g/cm3 ≤ ρ ≤ 1,06 g/cm3, insbesondere bevorzugt ρ ≈ 1,04 g/cm3 auf. Ein im Rahmen der vorliegenden Erfindung besonders bevorzugt als Imprägnierungsmittel eingesetzter Tiefgrund weist beispielsweise eine Dichte von 1,04 g/cm3 auf.The impregnation agent preferably has a density ρ of 0.98 g / cm 3 ρ 1.08 g / cm 3 , particularly preferably 1.01 g / cm 3 ρ 1.06 g / cm 3 , particularly preferably ρ ≈ 1.04 g / cm 3 . A particularly preferred in the context of the present invention as The primer used for the impregnation agent has a density of 1.04 g / cm 3 , for example.

Das Durchtränken des textilen Flächengebildes mit Imprägnierungsmittel erfolgt bevorzugt mit Hilfe eines Tauchbads, durch das das textile Flächengebilde gezogen wird, und anschließendem Abstreifen von überschlüssigem Material. Das Imprägnierungsmittel kann grundsätzlich aber auch aufgesprüht oder auf das textile Flächengebilde aufgerollt werden.The impregnating agent is preferably used to impregnate the textile fabric with the aid of an immersion bath, through which the textile fabric is pulled, and then scraping off excess material. In principle, however, the impregnating agent can also be sprayed on or rolled onto the textile fabric.

Nach dem thermischen Verbinden des getrockneten, mit einem nicht-klebrigen Haftvermittler imprägnierten, textilen Flächengebildes mit dem flächigen Träger unter Ausbildung einer auf dem flächigen Träger angeordneten, untrennbar mit dem flächigen Träger verbundenen, vollflächig mit einem nicht-klebrigen Haftvermittler imprägnierten, textilen Schicht wird das Flächenabdichtelement vorzugsweise in Form von 50 Meter langen und 1,0 Meter bis 2,0 Meter breiten Bahnen auf Rollen aufgewickelt, wodurch das Gewicht einer einzelnen Rolle in einem Bereich bleibt, der eine einfache Handhabung auf der Baustelle ermöglicht. Vorzugsweise soll das Gewicht einer Rolle 50 kg nicht überschreiten.After thermal bonding of the dried, non-sticky adhesive agent impregnated, textile fabric with the planar support with the formation of a textile layer arranged on the planar support, inseparably connected to the planar support, fully impregnated with a non-sticky adhesion promoter, the Surface sealing element preferably in the form of 50 meter long and 1.0 meter to 2.0 meter wide strips wound on rolls, whereby the weight of a single roll remains in a range that allows easy handling on the construction site. The weight of a roll should preferably not exceed 50 kg.

Das Verlegen der Flächenabdichtelemente ist grundsätzlich sowohl mit wie auch ohne Überlappungsbereich, also Stoß an Stoß, möglich. Dazu wird beispielsweise eine dünne, reißfeste Folie mit Klebefläche unter dem Stoß angebracht und die angrenzenden Flächenabdichtelemente auf der Folie verklebt. Alternativ eignet sich zur sicheren Abdichtung des Stoßes auch ein Klebeband mit einer Butyloberfläche.The laying of the surface sealing elements is basically possible both with and without an overlap area, i.e. butt to butt. For this purpose, for example, a thin, tear-resistant film with an adhesive surface is attached under the joint and the adjacent surface sealing elements are bonded to the film. Alternatively, an adhesive tape with a butyl surface is also suitable for securely sealing the joint.

Wege zur Ausführung der ErfindungWays of Carrying Out the Invention

Die Erfindung soll nachfolgend anhand eines Ausführungsbeispiels im Zusammenhang mit der Figur 1 näher erläutert werden. Die Figur 1 zeigt ein Ausführungsbeispiel eines erfindungsgemäßen Flächenabdichtelements 1 für Baukörper im Schnitt senkrecht zur Ebene des flächigen Trägers 2 in schematischer Darstellung.The invention is based on an exemplary embodiment in connection with the Figure 1 are explained in more detail. The Figure 1 shows an exemplary embodiment of a surface sealing element 1 according to the invention for structures in a section perpendicular to the plane of the planar support 2 in a schematic representation.

Figur 1 zeigt ein Flächenabdichtelement 1 mit einer Polyethylenfolie 2 als Beispiel für einen flächigen Träger. Die Polyethylenfolie 2 besitzt eine Flächenmasse von rund 500 g/m2. Mit der Polyethylenfolie 2 ist eine Vliesschicht 3 aus Polyester als textile Schicht untrennbar verbunden. Das Polyestervlies 3 ist vollflächig mit einem Tiefgrund als nicht-klebrigen Haftvermittler imprägniert und besitzt eine Flächenmasse von 50 g/m2. Figure 1 shows a surface sealing element 1 with a polyethylene film 2 as an example of a flat carrier. The polyethylene film 2 has a weight per unit area of around 500 g / m 2 . A fleece layer 3 made of polyester as a textile layer is inseparably connected to the polyethylene film 2. The polyester fleece 3 is completely impregnated with a deep base as a non-sticky adhesion promoter and has a weight per unit area of 50 g / m 2 .

Die Polyethylenfolie 2 weist auf ihrer dem Polyestervlies 3 abgewandten Oberfläche noppenartige Erhebungen 5 auf. Ebenso weist das Polyestervlies 3 auf seiner der Polyethylenfolie 2 abgewandten Oberfläche noppenartige Erhebungen 4 auf. Die noppenartigen Erhebungen 4, 5 sind halbkugelförmig ausgebildet.The polyethylene film 2 has knob-like elevations 5 on its surface facing away from the polyester fleece 3. The polyester fleece 3 likewise has knob-like elevations 4 on its surface facing away from the polyethylene film 2. The knob-like elevations 4, 5 are hemispherical.

Das dargestellte ein Flächenabdichtelement 1 kann problemlos aufgerollt werden ohne zu verkleben und zeigt hervorragende Eigenschaften bezüglich der Abdichtung gegenüber Wasser und Gas.The illustrated surface sealing element 1 can be rolled up without any problems without sticking and shows excellent properties with regard to sealing against water and gas.

BezugszeichenlisteList of reference symbols

11
FlächenabdichtelementSurface sealing element
22
PolyethylenfoliePolyethylene film
33
Vliesfleece
44th
noppenartige Erhebungen der Vliesschichtknob-like elevations of the fleece layer
55
noppenartige Erhebungen des flächigen Trägersknob-like elevations of the flat carrier

Claims (15)

  1. Surface sealing element (1) for structural bodies, comprising a flat carrier (2), the flat carrier being a plastic film, and a textile layer (3) arranged on the flat carrier (2) and inseparably connected to the flat carrier (2), wherein the textile layer is a non-woven, wherein the textile layer (3) is impregnated over its entire surface with a non-sticky adhesion promoter, characterised in that the textile layer (3) on its surface facing away from the flat carrier (2) has knob-like elevations (4) and/or the flat carrier (2) on its surface facing away from the textile layer (3) has knob-like elevations (5) and/or the flat carrier (2) on its surface facing away from the textile layer (3) has knob-like depressions and in that the surface sealing element (1) has a thickness I of ≤ 1.5 mm.
  2. Surface sealing element (1) according to claim 1, characterised in that the textile layer (3) is a non-woven made of polyester.
  3. Surface sealing element (1) according to any one of claims 1 or 2 characterised in that the textile layer (3) has a grammage of 20 g/m2 to 70 g/m2, preferably 35 g/m2 to 60 g/m2, particularly preferably around 50 g/m2.
  4. Surface sealing element (1) according to any one of claims 1 to 3 characterised in that the flat carrier (2) is a plastic film consisting of polyvinyl chloride, polyethylene, polypropylene, propylene oxide, polyurethane, more particularly thermoplastic polyurethane, or an olefin-based thermoplastic elastomer.
  5. Surface sealing element (1) according to any one of claims 1 to 4 characterised in that the flat carrier (2) has a grammage of 200 g/m2 to 700 g/m2, preferably 350 g/m2 to 600 g/m2, particularly preferably around 500 g/m2.
  6. Surface sealing element (1) according to any one of claims 1 to 5 characterised in that the adhesion promotor in its form as an impregnation agent is a plastic dispersion, latex dispersion, resin, epoxide resin, crosslinkable synthetic resin, latex, latex emulsion, cement adhesive mortar, natural rubber, synthetic rubber, organofunctional silane, bitumen rubber, butyl rubber, bitumen or a penetrating primer, more particularly a penetrating primer based on alkyd resin or acrylic resin or contains one or more of these materials.
  7. Surface sealing element (1) according to any one of claims 1 to 6, characterised in that the surface sealing element (1) has a thickness I of ≤ 1.2 mm.
  8. Method of producing a surface sealing element (1) for structural bodies, wherein the surface sealing element comprises a flat carrier (2), the flat carrier being a plastic film, and a textile layer (3) arranged on the flat carrier (2) and inseparably connected to the flat carrier (2), wherein the textile layer is a non-woven, wherein the textile layer (3) is impregnated over its entire surface with a non-sticky adhesion promoter, characterised in that the surface sealing element (1) has a thickness I of ≤ 1.5 mm, wherein the method comprises the steps
    a) providing a flat carrier (2), the flat carrier being a plastic film,
    b) providing a textile fabric, the textile fabric being a non-woven material,
    c) soaking the textile fabric with a non-sticky adhesion promoter containing impregnation agent, wherein the impregnation agent has a dynamic viscosity of η ≤ 500 mPas and the soaking of the fabric takes place at room temperature,
    d) drying of the textile fabric soaked with the impregnation agent containing a non-sticky adhesion promoter,
    e) thermally bonding the dried textile fabric impregnated with a non-sticky adhesion promoter to the flat carrier (2) while forming a textile layer (3), impregnated over its entire surface with a non-sticky adhesion promoter, arranged on the flat carrier (2) and inseparably connected to the flat carrier (2).
  9. Method of producing a surface sealing element (1) according to claim 8, wherein after step b) the step
    b1) thermally bonding the textile fabric to the flat carrier (2) while forming a textile layer (3) arranged on the flat carrier (2) and inseparably connected to the flat carrier (2)
    is carried out and steps d) and e) are replaced by the step
    e) drying of the textile layer impregnated with an impregnation agent containing a non-sticky adhesion promoter while forming a textile layer (3), impregnated over its entire surface with a non-sticky adhesion promoter, arranged on the flat carrier (2) and inseparably connected to the flat carrier (2).
  10. Method according to claim 8 or 9, wherein after step e) the step
    f) passing the surface sealing element obtained in step e) through an arrangement of calendar rollers, wherein at least one calendar roller coming into contact with the textile layer (3) has knob-like depressions
    is carried out.
  11. Method according to claim 8 or 9 wherein after step e) the step
    f) passing the surface sealing element obtained in step e) through an arrangement of calendar rollers, wherein at least one calendar roller coming into contact with the textile layer (3) has knob-like depressions, and at least one calendar roller coming into contact with the flat carrier (2) has knob-like depressions
    is carried out.
  12. Method according to claim 8 or 9 wherein after step e) the step
    f) passing the surface sealing element obtained in step e) through an arrangement of calendar rollers, wherein at least one calendar roller coming into contact with the textile layer (3) has knob-like depressions and least one calendar roller coming into contact with the flat carrier (2) has knob-like elevations
    is carried out.
  13. Method according to any one of claims 8 to 12 characterised in that as the impregnation agent a plastic dispersion, latex dispersion, resin, epoxide resin, crosslinkable synthetic resin, latex, latex emulsion, cement adhesive mortar, natural rubber, synthetic rubber, organofunctional silane, bitumen rubber, butyl rubber, bitumen or a penetrating primer, more particularly a penetrating primer based on alkyd resin or acrylic resin is used, or an impregnation agent that contains one or more of these materials is used.
  14. Method according to any one of claims 8 to 13 characterised in that the impregnation agent has a dynamic viscosity of η ≤ 50 mPas, preferably η ≈ 10 mPas.
  15. Method according to any one of claims 8 to 14 characterised in that the impregnation agent has a density ρ of 0.98 g/cm3 ≤ ρ ≤ 1.08 g/cm3, preferably 1.01 g/cm3 ≤ ρ ≤ 1.06 g/cm3', particularly preferably ρ ≈ 1.04 g/cm3.
EP16194266.9A 2015-11-25 2016-10-18 Surface sealing element for building objects Active EP3173533B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16194266T PL3173533T3 (en) 2015-11-25 2016-10-18 Surface sealing element for building objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015120401.0A DE102015120401A1 (en) 2015-11-25 2015-11-25 Surface sealing element for building

Publications (2)

Publication Number Publication Date
EP3173533A1 EP3173533A1 (en) 2017-05-31
EP3173533B1 true EP3173533B1 (en) 2020-08-26

Family

ID=57189804

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16194266.9A Active EP3173533B1 (en) 2015-11-25 2016-10-18 Surface sealing element for building objects

Country Status (4)

Country Link
EP (1) EP3173533B1 (en)
DE (1) DE102015120401A1 (en)
DK (1) DK3173533T3 (en)
PL (1) PL3173533T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017000549U1 (en) * 2017-02-02 2018-05-03 Watermann Polyworks Gmbh Sealing element for a building structure and building structure
DE102017117375A1 (en) * 2017-08-01 2019-02-07 Max Frank Gmbh & Co. Kg Shuttering element for concrete construction
CN110452552B (en) * 2019-08-16 2021-05-11 山西省交通规划勘察设计院有限公司 Anti-skid wearing layer with high bonding strength and preparation method thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD148797A1 (en) * 1980-01-15 1981-06-10 Bartschek Klaus Ulrich SURFACE-MODIFIED PLASTIC SEALING FOIL FOR PRESSURE WATER-RESISTANT SEALS
DE4001386A1 (en) * 1990-01-18 1991-07-25 Ruetgerswerke Ag Heat protection of organic fibre reinforcement - in bituminous roofing web, using size contg. polymer and inorganic filler
NZ241425A (en) 1991-03-01 1994-10-26 Grace W R & Co Waterproofing membrane comprising a carrier material, an adhesive layer and a protective layer; concrete structures having such a membrane retained on a surface thereof
IE86191B1 (en) * 2005-03-11 2013-05-22 Colas Sa A bituminous binder and its manufacturing process, and a process for improving fuel resistance of such bituminous binder
EP2177349A1 (en) 2008-10-15 2010-04-21 Sika Technology AG Waterproof membrane
DE102013104818A1 (en) * 2013-05-10 2014-11-27 Max Frank Gmbh & Co Kg Sealing element for building

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
PL3173533T3 (en) 2020-12-14
EP3173533A1 (en) 2017-05-31
DE102015120401A1 (en) 2017-06-01
DK3173533T3 (en) 2020-09-28

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