EP1283309B1 - Seal for a joint between two concrete elements - Google Patents
Seal for a joint between two concrete elements Download PDFInfo
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- EP1283309B1 EP1283309B1 EP02015059A EP02015059A EP1283309B1 EP 1283309 B1 EP1283309 B1 EP 1283309B1 EP 02015059 A EP02015059 A EP 02015059A EP 02015059 A EP02015059 A EP 02015059A EP 1283309 B1 EP1283309 B1 EP 1283309B1
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- film
- adhesive
- seal
- seal according
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- 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
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6809—Reverse side strips
Definitions
- the invention relates to a seal for a joint between two concrete parts.
- vertical and horizontal joints are possible.
- the vertical joints usually run between two wall parts made of concrete.
- Horizontal joints can be bounded by concrete walls on the one hand and the sole of a structure formed as a concrete slab on the other hand.
- the walls to be formed in concrete are not cast in one piece on site (in-situ concrete). Rather, individual wall parts are prefabricated, delivered as a whole to the site and connected there.
- these element walls consist of two limiting individual walls, between which there is a steel reinforcement for stabilization. Only the space left next to the reinforcement is filled with in-situ concrete on the construction site. In this way, the construction phase can make extremely time-saving and inexpensive. Due to the industrial prefabrication, the wall surfaces have a dense concrete structure with water-impermeable properties.
- the weak points of the construction are the joints necessarily formed, which in particular remain vertically between the individual element walls but also horizontally between the element walls and the building sole. Through the joints penetrating water can spread in the course of time in the cavities, which are despite filling with in-situ concrete still between the individual walls. In this way, it may even come after a while to a complete moisture penetration of the entire concrete wall.
- an adhesive is known, the crosslinked by absorption of moisture by preparation of an organopolysiloxane compound with elimination of alcohol to form an elastomer.
- organopolysiloxane compounds are also referred to as silicone resins or silicones. These are compounds with SI-O chains as a backbone.
- this adhesive has the disadvantage, although as I said by absorption of moisture curing, not readily adhere to damp substrates.
- CH 674749 describes a sealing tape for construction joints made of a flexible film strip, the edge regions of which are connectable with an adhesive and sealing compound with joint surfaces.
- the mass is applied in the form of two parallel adhesive strips on the foil band which are covered with an easily detachable protective tape.
- adhesive and sealant known here "hotmelt butyl”, “hotmelt PU” or dispersion adhesive is proposed. These adhesives also have the disadvantage of not sticking to damp substrates.
- bituminous seals After a primer, which is applied to dry or slightly damp, mineral-bound substrates (eg bitumen rubber precoat), a bitumen waterproofing membrane can be applied. It is also known to make this web self-adhesive (cf, for example, the product Bitucoat KSK).
- a disadvantage of this known solution is that a primer is required in each case with the primer. The primer can only be applied on a firm, load-bearing, clean, oil and grease-free and defect-free surface and not over gaping cracks, burrs as well as sharp edges. This circumstance represents a significant limitation in practice for bitumen-based joint seals, since their use is not independent of weather conditions.
- bituminous layer is to be chosen very carefully: on the one hand, an excessively thin layer thickness would mean that the application of bitumen would not be able to withstand the upcoming water pressure and that the layer is not sufficiently able to bridge cracks. On the other hand, the bituminous layer must not be too thick, since otherwise the through-drying process (and thus also the overall construction process) could be slowed down. In addition, this would possibly occur the so-called peat effect with severe cracking.
- the invention has the object of providing a seal for a joint between two concrete slabs in such a way that the hedge against penetrating water is permanent and at the same time a weather-independent installation is possible. This object is achieved by a seal according to claim 1.
- the film consists essentially of tear-resistant rubber and / or elastomer. Through these substances can be achieved that the sealing film clings to bumps on the surface. In particular, these materials can also be used when the joint to be sealed is at an angle, such as between the bottom plate of the building and an erected thereon element wall. In another advantageous embodiment, the side of the film facing the adhesive and sealing compound can be used. This is a particularly durable and firm connection between the film and the adhesive and sealant can be achieved.
- the life of the joint is increased if the film is advantageously weathering, UV light, and / or frost resistant.
- the film may advantageously have a thickness of at least 0.5 mm.
- the joint it is advantageous for the joint to choose a film width of at least 20 cm, so that there is sufficient space for the adhesive strips adjacent to the two longitudinal sides of the joints.
- the adhesive and sealant can be solvent-free, isocyanate-free and plasticizer-free and can also be processed in wet and / or wet surfaces.
- These properties of adhesives and sealants are very rare, in particular the isocyanate is not given in the usual polyurethane compositions.
- considerable advantages are ensured with such an embodiment of the adhesive.
- Such a mass is pasty and hardens to an elastic product. In particular, but can thus effectively avoid that the adhesive and sealing compound is porous and cracked over time. That the adhesive and sealant is to be processed even on wet surfaces, ensures a safe and delay-free planning of the construction. Last but not least, this can save considerable costs.
- the adhesive and sealant may be weatherproof in the cured state and have a high strength. These properties also increase the durability and reliability of the joint seal.
- the adhesive and sealant is based on silane-modified polymers. Such a basis is also called MS hybrid basis.
- This adhesive and sealant has the said, for the invention, particularly advantageous properties. It is particularly weather-independent and can be applied to the surfaces without primer. Silane-modified polymers adhere to both rubber and concrete, providing a UV-resistant and extremely strong bond. It is particularly advantageous that these adhesives and sealants cure even on moist ground and even under water. Moisture even accelerates the process of curing.
- the film is not attached to the two concrete walls each with a separate adhesive sheet, but by means of a single adhesive sheet, which sweeps over substantially the entire width of the film. This ensures a particularly good grip. At the same time, disruptive air bubbles or air spaces between the individual adhesive webs can be avoided.
- the elastic waterproof films used for the invention are usually manufactured and supplied in webs. At the end of such a web, this results in a subdivision of the film transversely to its longitudinal direction.
- an overlap of 50 to 100 mm can then be provided in the joint area, wherein the adhesive web can extend between the overlapping film sections.
- the seal may be provided on the acted upon with pressurized water construction site.
- the water pressure in this case contributes to the stability of the joint seal by pressing the film with additional force on the concrete slabs and on the joint.
- Fig. 1 shows the cross section through a horizontal joint between a concrete floor and an upstanding concrete wall.
- Fig. 2 shows the cross section through a seal for a vertical joint between two concrete walls.
- a wall 3 is arranged, which is formed in the embodiment as a triple wall and consists of two finished plates 4 , which are arranged at a distance from each other and are connected to each other via a lattice girder 6.
- the space 7 between the finished panels 4 is filled with in-situ concrete.
- the concrete base 2 extends beyond the wall 3 , so that a paragraph 8 results.
- a joint 16 which is provided with a seal according to the invention.
- This seal consists essentially of a waterproof film 9 , the film is elastic and thus can be easily fitted in the right-angled corner.
- the contact pressure of the film is additionally increased in this arrangement, which additionally improves the strength of the connection and the durability of the sealing connection.
- Fig. 2 the cross section is represented by a seal for a vertically extending joint 16 .
- the joint was filled with a filler 13 and thus created a substantially flat surface.
- the 30 cm wide sealing foil 9 is attached with an adhesive sheet 15 to the two concrete walls.
- the adhesive sheet essentially covers the entire width of the film. This way, air bubbles inside the glue web can be avoided and a particularly permanent hold is guaranteed.
- the thickness of the film is 1 mm chosen so that a high resistance to mechanical stress is given.
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Abstract
Description
Die Erfindung betrifft eine Dichtung für eine Fuge zwischen zwei Betonteilen. Dabei kommen insbesondere lotrechte und waagerechte Fugen in Betracht. Die lotrechten Fugen verlaufen üblicherweise zwischen zwei Wandteilen aus Beton. Waagerechte Fugen können von Betonwänden einerseits und von der als Betonplatte ausgebildeten Sohle eines Bauwerks andererseits begrenzt werden.The invention relates to a seal for a joint between two concrete parts. In particular, vertical and horizontal joints are possible. The vertical joints usually run between two wall parts made of concrete. Horizontal joints can be bounded by concrete walls on the one hand and the sole of a structure formed as a concrete slab on the other hand.
Seit dem Aufkommen von sogenannten Elementwänden kommt der Abdichtung von Fugen zwischen Betonplatten eine besondere Bedeutung zu. Bei dieser Bautechnik werden die in Beton auszubildenden Wände nicht in einem Stück vor Ort gegossen (Ortbeton). Vielmehr werden einzelne Wandteile vorgefertigt, als Ganzes an die Baustelle angeliefert und dort miteinander verbunden. Üblicherweise bestehen diese Elementwände aus zwei begrenzenden Einzelwänden, zwischen denen sich eine Stahlarmierung zur Stabilisierung befindet. Nur der neben der Armierung verbleibende Raum wird auf der Baustelle mit Ortbeton ausgegossen. Auf diese Weise läßt sich die Bauphase äußerst zeitsparend und preisgünstig gestalten. Aufgrund der industriellen Vorfertigung besitzen die Wandflächen ein dichtes Betongefüge mit wasserundurchlässigen Eigenschaften. Schwachpunkte der Konstruktion sind allerdings die notwendigerweise entstehenden Fugen, die insbesondere lotrecht zwischen den einzelnen Elementwänden aber auch horizontal zwischen den Elementwänden und der Bauwerkssohle verbleiben. Durch die Fugen eindringendes Wasser kann sich im Laufe der Zeit in den Hohlräumen ausbreiten, die sich trotz Auffüllung durch Ortbeton noch zwischen den Einzelwänden befinden. Auf diese Weise kann es nach einiger Zeit sogar zu einer vollständigen Durchfeuchtung der gesamten Betonwand kommen.Since the emergence of so-called element walls, the sealing of joints between concrete slabs is of particular importance. In this construction technique, the walls to be formed in concrete are not cast in one piece on site (in-situ concrete). Rather, individual wall parts are prefabricated, delivered as a whole to the site and connected there. Usually, these element walls consist of two limiting individual walls, between which there is a steel reinforcement for stabilization. Only the space left next to the reinforcement is filled with in-situ concrete on the construction site. In this way, the construction phase can make extremely time-saving and inexpensive. Due to the industrial prefabrication, the wall surfaces have a dense concrete structure with water-impermeable properties. The weak points of the construction, however, are the joints necessarily formed, which in particular remain vertically between the individual element walls but also horizontally between the element walls and the building sole. Through the joints penetrating water can spread in the course of time in the cavities, which are despite filling with in-situ concrete still between the individual walls. In this way, it may even come after a while to a complete moisture penetration of the entire concrete wall.
Zur Abdichtung dieser Fugen sind einige Lösungen bekannt.To seal these joints some solutions are known.
Aus der US 6011112 zunächst ist ein Klebstoff bekannt, der durch Aufnahme von Feuchtigkeit durch Herstellung einer Organopolysiloxan-Verbindung unter Abspaltung von Alkohol zu einem Elastomeren vemetzt. Derartige Organopolysiloxan-Verbindungen bezeichnet man auch als Silikonharze oder Silikone. Dies sind Verbindungen mit SI-O-Ketten als Grundgerüst. Dieser Klebstoff hat aber den Nachteil, wenngleich wie gesagt durch Aufnahme von Feuchtigkeit aushärtend, nicht ohne weiteres auf feuchten Untergründen zu haften.From US 6011112 first, an adhesive is known, the crosslinked by absorption of moisture by preparation of an organopolysiloxane compound with elimination of alcohol to form an elastomer. Such organopolysiloxane compounds are also referred to as silicone resins or silicones. These are compounds with SI-O chains as a backbone. However, this adhesive has the disadvantage, although as I said by absorption of moisture curing, not readily adhere to damp substrates.
Die CH 674749 beschreibt ein Dichtungsband für Baufugen aus einem flexiblen Folienband, dessen Randbereiche mit einer Kleb- und Dichtungsmasse mit Fugenoberflächen verbindbar sind. Die Masse ist in Form von zwei parallelen Haftstreifen auf dem Folienband angebracht, die mit einem leicht lösbaren Schutzband bedeckt sind. Als Kleb- und Dichtungsmasse wird hier bekannter "Hotmelt Butyl", "Hotmelt PU" oder Dispersionskleber vorgeschlagen. Auch diese Klebstoffe haben den Nachteil, nicht auf feuchten Untergründen zu haften.CH 674749 describes a sealing tape for construction joints made of a flexible film strip, the edge regions of which are connectable with an adhesive and sealing compound with joint surfaces. The mass is applied in the form of two parallel adhesive strips on the foil band which are covered with an easily detachable protective tape. As adhesive and sealant known here "hotmelt butyl", "hotmelt PU" or dispersion adhesive is proposed. These adhesives also have the disadvantage of not sticking to damp substrates.
Aus der DE 295 19 911 U1 ist ein Abdichtungssystem mit einer bentonitbeschichteten Trägerbahn und einem an den Betonwänden verankerbaren Abdeckblech bekannt, wobei die Dichtung an der mit drückendem Wasser beaufschlagten Bauwerkseite vorgesehen ist. Diese Lösung nutzt im wesentlichen die hohe Quell- und Adsorptionfähigkeit der Tonart Bentonit. Bei Beaufschlagung der Dichtung mit Wasser wird ein starker Quellvorgang eingeleitet, durch den sich eine Abdichtung der Fuge des Bauwerks erreichen läßt. Diese Lösung hat allerdings den Nachteil, daß die abdichtende Wirkung nur bei äußerst präziser Verarbeitung und bei ebenem Untergrund über einen längeren Zeitraum gewährleistet ist: Da Bentonit nicht aushärtet, ist es erforderlich, den Quelldruck in dem Raum, der von dem Abdeckblech umgrenzt wird, stetig aufrechtzuerhalten. Dies ist aber insbesondere dann nicht mehr der Fall, wenn das quellende Material beispielsweise wegen einer unpräzisen Montage unter der zwischen Abdeckblech und Betonwand verbleibenden Fuge entweichen kann. Die Aufrechterhaltung eines dauerhaften Quelldrucks wird zusätzlich erschwert, wenn ein unebener Untergrund vorliegt. Dann muß der Dichtungsraum an sämtlichen Aushöhlungen des Untergrundes gesondert mit Bentonit unterfüttert werden, was zu einer konstruktionsbedingten Ungleichmäßigkeit des Dichtungsmittels und somit zu einer zusätzlichen Fehlerquelle führt.From DE 295 19 911 U1 a sealing system with a bentonite-coated carrier web and an anchored to the concrete walls cover plate is known, wherein the seal is provided on the acted upon with pressurized water construction site. This solution essentially uses the high swelling and adsorption capacity of the bentonite clay. Upon exposure of the seal with water, a strong swelling process is initiated, through which a seal of the joint of the building can be achieved. However, this solution has the disadvantage that the sealing effect is ensured only with extremely precise processing and even ground over a longer period of time: Since bentonite does not harden, it is necessary to maintain the swelling pressure in the space bounded by the cover plate, steadily. However, this is no longer the case, in particular, when the swelling material can escape, for example because of an imprecise mounting, under the gap remaining between the cover plate and the concrete wall. The maintenance of a permanent swelling pressure is made even more difficult if an uneven surface is present. Then the sealing space must be fed separately with bentonite at all cavities of the substrate, which leads to a design-related unevenness of the sealant and thus to an additional source of error.
Bekannt sind auch bituminöse Abdichtungen. Nach einem Voranstrich, der auf trockenen oder leicht feuchten, mineralisch gebundenen Untergründen verarbeitet wird (z. B. Bitumen-Kautschuk-Voranstrich), kann eine Bitumen-Dichtungsbahn aufgebracht werden. Es ist auch bekannt, diese Bahn selbstklebend zu gestalten (vgl. etwa das Produkt Bitucoat KSK). Nachteilig an dieser bekannten Lösung ist, daß in jedem Fall mit dem Voranstrich eine Grundierung erforderlich ist. Der Voranstrich kann lediglich auf einem festen, tragfähigen, sauberen, öl- und fettfreien sowie fehlstellenfreien Untergrund und nicht über klaffenden Rissen, Graten sowie scharfen Kanten aufgebracht werden. Dieser Umstand stellt für die Praxis eine erhebliche Einschränkung für auf Bitumen beruhende Fugendichtungen dar, da ihre Verwendung nicht unabhängig von der Witterung ist. Insbesondere in Mitteleuropa kann es dadurch leicht zu empfindlichen Verzögerungen in der Baudurchführung kommen. In jedem Fall gilt es, einen Zeitraum zu finden, in dem während Montage und Aushärtung eine trockene Witterung gewährleistet ist. Ein weiterer Nachteil dieser im Stand der Technik bekannten Lösung besteht in ihrer Anfälligkeit gegen Anwendungsfehler. Insbesondere ist die Dicke der Bitumenschicht sehr sorgfältig zu wählen: Einerseits hätte eine zu dünne Schichtstärke zur Folge, daß der Bitumenauftrag dem anstehenden Wasserdruck nicht standhalten könnte und daß die Schicht nicht ausreichend fähig ist, Risse zu überbrücken. Andererseits darf die Bitumenschicht auch nicht zu dick sein, da sonst der Durchtrocknungsprozeß (und mithin auch der Bauprozeß insgesamt) verlangsamt werden könnte. Außerdem würde dadurch unter Umständen der sogenannte Torfeffekt mit starker Rißbildung eintreten.Also known are bituminous seals. After a primer, which is applied to dry or slightly damp, mineral-bound substrates (eg bitumen rubber precoat), a bitumen waterproofing membrane can be applied. It is also known to make this web self-adhesive (cf, for example, the product Bitucoat KSK). A disadvantage of this known solution is that a primer is required in each case with the primer. The primer can only be applied on a firm, load-bearing, clean, oil and grease-free and defect-free surface and not over gaping cracks, burrs as well as sharp edges. This circumstance represents a significant limitation in practice for bitumen-based joint seals, since their use is not independent of weather conditions. In Central Europe in particular, this can easily lead to delays in the construction process. In any case, it is important to find a time period during which dry weathering is guaranteed during installation and curing. Another disadvantage of this known in the prior art solution is its susceptibility to application errors. In particular, the thickness of the bituminous layer is to be chosen very carefully: on the one hand, an excessively thin layer thickness would mean that the application of bitumen would not be able to withstand the upcoming water pressure and that the layer is not sufficiently able to bridge cracks. On the other hand, the bituminous layer must not be too thick, since otherwise the through-drying process (and thus also the overall construction process) could be slowed down. In addition, this would possibly occur the so-called peat effect with severe cracking.
Der Erfindung liegt die Aufgabe zugrunde, eine Dichtung für eine Fuge zwischen zwei Betonplatten so auszubilden, daß die Absicherung vor eindringendem Wasser dauerhaft ist und gleichzeitig eine witterungsunabhängige Montage möglich ist. Diese Aufgabe wird erfindungsgemäß durch eine Dichtung gemäß Anspruch 1 gelöst.The invention has the object of providing a seal for a joint between two concrete slabs in such a way that the hedge against penetrating water is permanent and at the same time a weather-independent installation is possible. This object is achieved by a seal according to
Da bei der erfindungsgemäßen Lösung kein Quelldruck aufrechterhalten werden muß, um die Wirksamkeit der Dichtung zu gewährleisten, stellt die Erfindung keine hohen Anforderungen an die Präzision der Verarbeitung. Mit ihr ist vielmehr eine dauerhafte Dichtung auch bei einfacher Montage möglich. Indem eine auch bei Feuchtigkeit aushärtenden Kleb- und Dichtmasse verwendet wird, kann der Montagezeitpunkt unabhängig von der Witterung gewählt werden, was die Bauplanung erheblich vereinfacht und somit auch die Kosten spürbar senkt. Dieser Vorteil wird noch dadurch verstärkt, daß eine Grundierung nicht erforderlich ist, da die verwendete Kleb- und Dichtmasse sowohl an Beton als auch an dem Material der Folie haftend ist. Restriktionen beim Aufbringen einer Grundierung sind daher nicht zu beachten.Since in the solution according to the invention, no swelling pressure must be maintained in order to ensure the effectiveness of the seal, the invention makes no high demands on the precision of the processing. With her rather a permanent seal is possible even with simple installation. By using a moisture-curing adhesive and sealant, the assembly time can be chosen independently of the weather, which considerably simplifies the construction planning and thus also noticeably lowers the costs. This advantage is further enhanced by the fact that a primer is not required because the adhesive and sealant used is adhesive both to concrete and to the material of the film. Restrictions when applying a primer are therefore not to be considered.
In einer vorteilhaften Ausführungsform besteht die Folie im wesentlichem aus reißfestem Gummi und/oder Elastomer. Durch diese Stoffe kann erreicht werden, daß sich die Dichtungsfolie an Unebenheiten auf der Unterlage anschmiegt. Insbesondere können diese Materialien auch dann Verwendung finden, wenn sich die abzudichtende Fuge in einem Winkel, etwa zwischen der Bodenplatte des Gebäudes und einer darauf aufgestellten Elementwand, befindet. In einer anderen vorteilhaften Ausführungsform kann die der Kleb- und Dichtmasse zugewandte Seite der Folie gestofft sein. Damit läßt sich eine besonders dauerhafte und feste Verbindung zwischen der Folie und der Kleb- und Dichtmasse erzielen.In an advantageous embodiment, the film consists essentially of tear-resistant rubber and / or elastomer. Through these substances can be achieved that the sealing film clings to bumps on the surface. In particular, these materials can also be used when the joint to be sealed is at an angle, such as between the bottom plate of the building and an erected thereon element wall. In another advantageous embodiment, the side of the film facing the adhesive and sealing compound can be used. This is a particularly durable and firm connection between the film and the adhesive and sealant can be achieved.
Die Lebensdauer der Fuge wird erhöht, wenn die Folie vorteilhaft witterungs-, UV-Licht-, und/oder frostbeständig ist.The life of the joint is increased if the film is advantageously weathering, UV light, and / or frost resistant.
Damit die Festigkeit der Folie gegenüber mechanischen Belastungen, beispielsweise während der Montage oder während des Auffüllens der Baugrube, gewährleistet ist, kann die Folie vorteilhaft eine Dicke von mindestens 0,5 mm aufweisen. Je nach Breite der Fuge ist es vorteilhaft, eine Folienbreite von mindestens 20 cm zu wählen, damit angrenzend an die beiden Längsseiten der Fugen ausreichend Platz für die Klebebahnen ist.In order to ensure the strength of the film against mechanical stresses, for example during assembly or during the filling of the excavation, the film may advantageously have a thickness of at least 0.5 mm. Depending on the width It is advantageous for the joint to choose a film width of at least 20 cm, so that there is sufficient space for the adhesive strips adjacent to the two longitudinal sides of the joints.
Vorteilhaft kann die Kleb- und Dichtmasse lösemittel-, isocyanat- und weichmacherfrei sein sowie auch bei feuchten und/oder nassen Untergründen zu verarbeiten sein. Diese Eigenschaften von Kleb- und Dichtmassen sind sehr selten, insbesondere die Isocyanatfreiheit ist bei den üblichen Polyurethanmassen nicht gegeben. Allerdings sind mit einer solchen Ausführung der Klebmasse erhebliche Vorteile gewährleistet. Eine solche Masse ist pastös und härtet zu einem elastischen Produkt aus. Insbesondere aber läßt sich damit wirkungsvoll vermeiden, daß die Kleb- und Dichtverbindung im Laufe der Zeit porös und rissig wird. Daß die Kleb- und Dichtmasse auch bei feuchten Untergründen zu verarbeiten ist, gewährleistet eine sichere und verzögerungsfreie Planung der Baudurchführung. Nicht zuletzt können damit erhebliche Kosten eingespart werden.Advantageously, the adhesive and sealant can be solvent-free, isocyanate-free and plasticizer-free and can also be processed in wet and / or wet surfaces. These properties of adhesives and sealants are very rare, in particular the isocyanate is not given in the usual polyurethane compositions. However, considerable advantages are ensured with such an embodiment of the adhesive. Such a mass is pasty and hardens to an elastic product. In particular, but can thus effectively avoid that the adhesive and sealing compound is porous and cracked over time. That the adhesive and sealant is to be processed even on wet surfaces, ensures a safe and delay-free planning of the construction. Last but not least, this can save considerable costs.
Die Kleb- und Dichtmasse kann im ausgehärtetem Zustand witterungsfest sein und eine hohe Festigkeit aufweisen. Auch diese Eigenschaften steigern die Dauerhaftigkeit und Zuverlässigkeit der Fugendichtung.The adhesive and sealant may be weatherproof in the cured state and have a high strength. These properties also increase the durability and reliability of the joint seal.
Die Kleb- und Dichtmasse beruht auf der Basis silanmodifizierter Polymere. Eine solche Basis wird auch MS-Hybrid-Basis genannt. Diese Kleb- und Dichtmasse weist die genannten, für die Erfindung besonders vorteilhaften, Eigenschaften auf. Sie ist insbesondere witterungsunabhängig und kann auch ohne Grundierung auf die Oberflächen aufgebracht werden. Silanmodifizierte Polymere haften sowohl an Gummi als auch an Beton und liefern eine UV-beständige sowie äußerst feste Verbindung. Besonders vorteilhaft ist, daß diese Kleb- und Dichtmassen auch auf feuchtem Untergrund und sogar unter Wasser aushärten. Feuchtigkeit beschleunigt sogar noch den Vorgang der Aushärtung.The adhesive and sealant is based on silane-modified polymers. Such a basis is also called MS hybrid basis. This adhesive and sealant has the said, for the invention, particularly advantageous properties. It is particularly weather-independent and can be applied to the surfaces without primer. Silane-modified polymers adhere to both rubber and concrete, providing a UV-resistant and extremely strong bond. It is particularly advantageous that these adhesives and sealants cure even on moist ground and even under water. Moisture even accelerates the process of curing.
In einer vorteilhaften Ausführungsform ist die Folie an den beiden Betonwänden nicht jeweils mit einer gesonderten Klebebahn befestigt, sondern mittels einer einzigen Klebebahn, die im wesentlichen die gesamte Breite der Folie überstreicht. Damit ist ein besonders guter Halt gewährleistet. Gleichzeitig können störende Luftblasen oder Lufträume zwischen den einzelnen Klebebahnen vermieden werden.In an advantageous embodiment, the film is not attached to the two concrete walls each with a separate adhesive sheet, but by means of a single adhesive sheet, which sweeps over substantially the entire width of the film. This ensures a particularly good grip. At the same time, disruptive air bubbles or air spaces between the individual adhesive webs can be avoided.
Die für die Erfindung verwendeten elastischen wasserdichten Folien werden üblicherweise in Bahnen hergestellt und geliefert. Am Ende einer solchen Bahn führt dies zu einer Unterteilung der Folie transversal zu ihrer Längsrichtung. Vorteilhaft kann dann im Stoßbereich eine Überlappung von 50 bis 100 mm vorgesehen sein, wobei sich die Klebebahn zwischen den sich überlappenden Folienabschnitten erstrecken kann. Damit wird auch in dem Überlappungsbereich eine dauerhafte und zuverlässige Dichtigkeit erreicht.The elastic waterproof films used for the invention are usually manufactured and supplied in webs. At the end of such a web, this results in a subdivision of the film transversely to its longitudinal direction. Advantageously, an overlap of 50 to 100 mm can then be provided in the joint area, wherein the adhesive web can extend between the overlapping film sections. Thus, a durable and reliable tightness is achieved in the overlap area.
Vorteilhaft kann die Dichtung an der mit drückendem Wasser beaufschlagtem Bauwerkseite vorgesehen sein. Der Wasserdruck trägt in diesem Falle noch zur Stabilität der Fugendichtung bei, indem er die Folie mit zusätzlicher Kraft auf die Betonplatten und auf die Fuge preßt.Advantageously, the seal may be provided on the acted upon with pressurized water construction site. The water pressure in this case contributes to the stability of the joint seal by pressing the film with additional force on the concrete slabs and on the joint.
Die Erfindung wird im folgendem beispielhaft anhand zweier Zeichnungen näher erläutert.The invention will be explained in more detail in the following example with reference to two drawings.
Fig. 1 zeigt den Querschnitt durch eine waagerechte Fuge zwischen einer Betonsohle und einer aufstehenden Betonwand. Fig. 1 shows the cross section through a horizontal joint between a concrete floor and an upstanding concrete wall.
Fig. 2 zeigt den Querschnitt durch eine Dichtung für eine lotrechte Fuge zwischen zwei Betonwänden. Fig. 2 shows the cross section through a seal for a vertical joint between two concrete walls.
Auf der mit einer Bewehrung 1 ausgerüsteten Betonsohle 2 ist eine Wand 3 angeordnet, die in dem Ausführungsbeispiel als Dreifachwand ausgebildet ist und aus zwei Fertigplatten 4 besteht, die in Abstand voneinander angeordnet sind und über einen Gitterträger 6 miteinander verbunden sind. Der Zwischenraum 7 zwischen den Fertigplatten 4 wird mit Ortbeton verfüllt. Die Betonsohle 2 erstreckt sich über die Wand 3 hinaus, so daß sich ein Absatz 8 ergibt. An dieser Stelle entsteht zwangsläufig eine Fuge 16, die mit eine erfindungsgemäße Dichtung versehen ist. Diese Dichtung besteht im wesentlichen aus einer wasserdichten Folie 9, die Folie elastisch ist und somit leicht in die rechtwinklige Ecke eingepaßt werden kann. Die Befestigung der Folie an die Betonplatten geschieht mittels zweier Klebebahnen 11, 12, die jeweils die Verbindung zwischen der Betonsohle und der Wand 3 gewährleisten. Aus der Fig. 1 ergibt sich, daß die Dichtung 9 an der Außenseite des Bauwerks vorgesehen ist, mit dem Ziel, Wasser schon an der Außenseite zurückzuhalten, so daß durch die Fugen zwischen den Bauwerksteilen kein Wasser in das Bauwerksinnere eindringen kann.On the equipped with a
Befindet sich um das Bauwerk herum drückendes Wasser, so erhöht sich bei dieser Anordnung zusätzlich der Anpressdruck der Folie, was Festigkeit der Verbindung und Dauerhaftigkeit der dichtenden Verbindung noch zusätzlich verbessert.If water is pressed around the building, the contact pressure of the film is additionally increased in this arrangement, which additionally improves the strength of the connection and the durability of the sealing connection.
In Fig. 2 ist der Querschnitt durch eine Dichtung für eine lotrecht verlaufende Fuge 16 dargestellt. Vor der Abdichtung wurde die Fuge mit einer Spachtelmasse 13 angefüllt und somit eine im wesentlichen plane Oberfläche geschaffen. Die 30 cm breite dichtende Folie 9 ist mit einer Klebebahn 15 an den beiden Betonwänden befestigt. Dabei überstreicht die Klebebahn im wesentlichen die gesamte Breite der Folie. So können Luftblasen im Inneren der Klebebahn vermeiden werden und ein besonders dauerhafter Halt ist gewährleistet. Die Dicke der Folie ist mit 1 mm so gewählt, daß eine hohe Festigkeit gegen mechanische Belastungen gegeben ist.In Fig. 2 the cross section is represented by a seal for a vertically extending joint 16 . Before the seal, the joint was filled with a
Claims (10)
- Seal for a joint between two concrete parts, having an elastic watertight film which overhangs the joint on both longitudinal sides and is fastened to both concrete parts by means of at least one bond, characterized in that the bond consists of an adhesive and sealing compound based on silane-modified polymers, which compound hardens in the presence of moisture and adheres both to concrete and to the material of the film even in the case of damp and/or wet undersurfaces.
- Seal according to Claim 1, characterized in that the film substantially consists of tear-resistant rubber and/or elastomer.
- Seal according to Claims 1 or 2, characterized in that the side of the film which faces the adhesive and sealing compound is fabricked.
- Seal according to one of Claims 1 to 3, characterized in that the film is weather-resistant, UV-light-resistant and/or frost-resistant.
- Seal according to one of Claims 1 to 4, characterized in that the film has a thickness of at least 0.5 mm and a width of at least 20 cm.
- Seal according to one of Claims 1 to 5, characterized in that the adhesive and sealing compound is free from solvents, isocyanates and softeners.
- Seal according to one of Claims 1 to 6, characterized in that the adhesive and sealing compound, in the hardened state, is weather-resistant and has a high strength.
- Seal according to one of Claims 1 to 7, characterized by a single bond which substantially covers the entire width of the film.
- Seal according to one of Claims 1 to 8, having a film which is divided transversely to its longitudinal direction, characterized in that in the joint region a 50 mm to 100 mm overlap of the film portions is provided, the bond extending between the overlapping film portions.
- Seal according to one of Claims 1 to 9, characterized in that the seal is provided on the construction side which is subjected to pressing water.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20112729U | 2001-08-06 | ||
| DE20112729U DE20112729U1 (en) | 2001-08-06 | 2001-08-06 | Seal for a joint between two concrete parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1283309A1 EP1283309A1 (en) | 2003-02-12 |
| EP1283309B1 true EP1283309B1 (en) | 2006-05-24 |
Family
ID=7960017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02015059A Revoked EP1283309B1 (en) | 2001-08-06 | 2002-07-05 | Seal for a joint between two concrete elements |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1283309B1 (en) |
| AT (1) | ATE327390T1 (en) |
| DE (2) | DE20112729U1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006046627A1 (en) * | 2006-09-29 | 2008-04-10 | Btf Produktentwicklungs- Und Vertriebs-Gmbh | Sealing for water-impermeable concrete cellars |
| DE102011117555A1 (en) | 2011-11-03 | 2013-05-08 | Wilhelm Wohlsecker | Method for multi-level joint protection system for wall elements made of precast concrete elements |
| DE102013007449A1 (en) | 2013-05-02 | 2014-11-06 | Denso-Holding Gmbh & Co. | Traffic surface structure with at least one intermediate layer |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0217968A1 (en) * | 1985-09-05 | 1987-04-15 | Hans Grünbauer | Flexible sealing strip |
| CH674749A5 (en) * | 1988-01-28 | 1990-07-13 | Huber+Suhner Ag | Sealing tape - for structural joints made of specified material with adhesive strips |
| CH682246A5 (en) * | 1990-10-05 | 1993-08-13 | Huber+Suhner Ag | Sealing strip for seam in building structure - is made of elastic material and is provided at least on one side with fibre material |
| DE29521668U1 (en) * | 1995-03-08 | 1998-02-12 | Norega Anstalt, Schaan | Composite sealing material |
| DE19536410A1 (en) * | 1995-09-29 | 1997-04-03 | Wacker Chemie Gmbh | Organopolysiloxane compositions which can be crosslinked with the elimination of alcohols to give elastomers |
| DE29519911U1 (en) * | 1995-12-15 | 1996-02-01 | Contec Bauwerksabdichtungen GmbH, 32130 Enger | Seal for a joint between two concrete walls |
-
2001
- 2001-08-06 DE DE20112729U patent/DE20112729U1/en not_active Expired - Lifetime
-
2002
- 2002-07-05 DE DE50206863T patent/DE50206863D1/en not_active Expired - Fee Related
- 2002-07-05 AT AT02015059T patent/ATE327390T1/en not_active IP Right Cessation
- 2002-07-05 EP EP02015059A patent/EP1283309B1/en not_active Revoked
Also Published As
| Publication number | Publication date |
|---|---|
| DE20112729U1 (en) | 2002-02-14 |
| EP1283309A1 (en) | 2003-02-12 |
| ATE327390T1 (en) | 2006-06-15 |
| DE50206863D1 (en) | 2006-06-29 |
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