EP0199108B1 - Injection hose for a dilatation joint in concrete structures - Google Patents

Injection hose for a dilatation joint in concrete structures Download PDF

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Publication number
EP0199108B1
EP0199108B1 EP86103890A EP86103890A EP0199108B1 EP 0199108 B1 EP0199108 B1 EP 0199108B1 EP 86103890 A EP86103890 A EP 86103890A EP 86103890 A EP86103890 A EP 86103890A EP 0199108 B1 EP0199108 B1 EP 0199108B1
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EP
European Patent Office
Prior art keywords
injection tube
tube according
openings
strips
recesses
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
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EP86103890A
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German (de)
French (fr)
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EP0199108A1 (en
Inventor
Kunibert Koob
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TRICOSAL GmbH
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Koob Kunibert
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Publication date
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Priority to AT86103890T priority Critical patent/ATE39720T1/en
Publication of EP0199108A1 publication Critical patent/EP0199108A1/en
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Publication of EP0199108B1 publication Critical patent/EP0199108B1/en
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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
    • E04B1/6816—Porous tubular seals for injecting sealing material

Definitions

  • the invention relates to an injection hose for construction joints on concrete structures, with a base body which comprises a flexible material, such as rubber or plastic, and surrounds a passage channel, which has radial openings along its length for the discharge of injection liquid from the passage channel, and along its length in the area of the radial openings has a recess extending over its length for receiving a strip covering the openings from material that is compressible under the pressure of the injection liquid, and with a tube of liquid-permeable material surrounding the base body and the strip.
  • a base body which comprises a flexible material, such as rubber or plastic, and surrounds a passage channel, which has radial openings along its length for the discharge of injection liquid from the passage channel, and along its length in the area of the radial openings has a recess extending over its length for receiving a strip covering the openings from material that is compressible under the pressure of the injection liquid, and with a tube of liquid-permeable material surrounding the base body and the strip.
  • an injection hose which has an inner support body having a liquid-permeable wall, a first liquid-permeable network-like hose enveloping this support body and a second liquid-permeable, network-like hose enveloping this first hose, wherein between the In both of the above-mentioned network-like hoses, a tubular fleece is provided, which should be impermeable from outside to inside for concrete particles, but should be permeable from inside to outside for sealants.
  • a support body-free hose with high stability which has a large number of openings in its wall.
  • a hose-like filter layer is arranged between this inner hose and an outer network-like hose.
  • the openings for the concrete sealant of the inner hose are arranged, for example, in four rows running parallel to the longitudinal axis of the hose, which are at equal distances from one another.
  • Injection hoses of this type are complex to manufacture and not always reliable in use because of the need for the special selection of the network-like hoses and tubular nonwovens, since it is necessary to match the network-like hoses and the tubular nonwoven to the concrete particles and the sealant used.
  • the known injection hoses are also often difficult to install due to excessive rigidity and are easily damaged in rough construction site operation, which prevents the uniform distribution of the injection liquid over the entire length of the injection hose.
  • an injection hose of the type mentioned at the outset is proposed in DE-U 8 425 518.8, in which the only radial opening for the outlet of the injection liquid is designed as a slot which extends over the entire length of the base body and in which the edges of the Strip are rounded and received in corresponding recesses in the recess.
  • the strip has a spring which engages in the slot.
  • the object of the invention is to further develop an injection hose of the type mentioned at the outset in such a way that it is easier to manufacture and handle, and the injection liquid reaches the desired locations reliably and uniformly.
  • the solution according to the invention creates an injection hose which is simple to manufacture and handle and in which it is ensured that the injection liquid can be fed to any desired location of a construction joint without any problems.
  • An embodiment of the invention which is particularly expedient in terms of manufacture provides that the depressions and the associated strips have straight-sided side walls which, in particular (with respect to a certain depression) run at an acute angle to one another.
  • This embodiment is also very expedient, in particular for manufacturing reasons, because the base body and strips can be easily extruded and the strips can simply be inserted into their recess.
  • the width of the base of the depressions is only slightly larger than the diameter of the radial openings in the relevant direction.
  • a diameter of the openings of approximately 3 mm is expediently provided, while the distance between the openings is advantageously approximately 2 cm and the diameter of the passage is approximately 6 mm.
  • the radial openings are designed as holes or slots arranged in longitudinal rows, the longitudinal rows being distributed at equal angular intervals over the circumference of the base body.
  • the injection hose advantageously consists only of a base body and a corresponding number of strips provided in the depressions distributed around the circumference. A correspondingly different number of rows of holes and associated strips can be provided for different applications.
  • the base body consists of polyvinyl chloride, that the surrounding hose is made of a bobbin lace fabric and that the strips covering the openings are advantageously made of foam rubber, foam rubber or neoprene, since this makes it easy to set the required compressibility.
  • the single figure illustrates in cross section an injection hose having the invention.
  • the injection hose 1 consists of a base body 2, which has an essentially hollow cylindrical wall and thereby forms a continuous central cylindrical passage 3.
  • the injection liquid is supplied to one or both ends of the injection hose 1 or, if appropriate, also with connections provided in between, in order to distribute it over the length of the construction joints to be sealed.
  • Four depressions 5, 6, 7 and 8 are provided over the circumference of the base body 2 at equal angular intervals and extend over the length of the base body 2. Radially extending openings 9, 10, 11 and 12 are provided for the flow connection of the passage 3 and the depressions 5, 6, 7, 8, which on the one hand open into the passage 3 and on the other hand into the depressions 5, 6, 7 and 8.
  • the recesses 5, 6, 7 and 8 are of identical design for reasons of symmetry, so that only the recess 5 need be described in more detail here.
  • the recess 5 has two side walls 13, 14, which are arranged at an angle converging inwards towards one another, so that there is an extension to the outer edge of the base body 2.
  • the angle formed by the side walls 13, 14 is acute.
  • the base 15 of the recess 5 is not significantly wider than the diameter of the associated openings 9.
  • the bases 15 of the recesses 5, 6, 7 and 8 are rounded and lie on a common (imaginary) cylindrical surface.
  • Strips 16, 17, 18 and 19 are arranged in the depressions 5, 6, 7 and 8, the shape of which is adapted to the shape of the depressions 5, 6, 7 and 8. They lie flush with the outer circumference of the projections of the base body 2 that have remained between the depressions 5, 6, 7 and 8.
  • the distance between the openings 9, 10, 11 and 12 is expediently about 2 cm in the axial direction, the diameter of the passage 3 is expediently about 6 mm, while the diameter of the openings 9, 10, 11 and 12 is about 3 mm.
  • the depth of the depressions 5, 6, 7 and 8 is also expediently 3 mm.
  • the openings 9, 10, 11 and 12, viewed in the axial direction, can be offset with respect to the openings in the adjacent longitudinal row in order to even out the injection liquid outlet.
  • Polyvinyl chloride is advantageous as the material for the base body 2, while the strips 16, 17, 18 and 19 consist of foam rubber, foam rubber or neoprene because of the desired compressibility.
  • the base body 2 and the strips 16, 17, 18 and 19 arranged in the depressions 5, 6, 7 and 8, which essentially end with the outer circumference of the base body 2, are surrounded by a tube 20 made of a liquid-permeable material, which is made of, for example a bobbin fabric can exist.
  • a tube 20 made of a liquid-permeable material which is made of, for example a bobbin fabric can exist.
  • the penetration of concrete components from the outside into the passage 3 is reliably avoided, since when the pressure from the outside increases, the strips 16, 17, 18 and 19 only the openings 9, 10, 11 and 12 arranged in longitudinal rows seal even better. If, on the other hand, the injection liquid from the passage 3 presses outwards against the strips 16, 17, 18 and 19, these are compressed due to their material properties and the joints between the depressions 5, 6, 7 and 8 and the strips 16, 17, 18 and 19 expanded so that the injection liquid can emerge from the injection hose 1 evenly over its length and circumference. The strips 16, 17, 18 and 19 are held in place by the outer enveloping hose 20, so that the openings 9, 10, 11 and 12 are reliably closed again after the passage of the injection liquid.
  • the injection hose 1 according to the invention is relatively insensitive to damage because of its thick walls.
  • the enveloping hose 20 can also accept greater damage without losing its function as a holder for the strips 16, 17, 18 and 19 in the depressions 5, 6, 7 and 8.
  • Elaborate support body u. The like. are not required in the injection hose 1 according to the invention, so that overall there is an economical, easy, reliable and safe to use injection hose 1, which is also reliable in its function, in particular also in the uniform distribution of the injection liquid.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Building Environments (AREA)

Abstract

An injection hose for construction joints in concrete structures includes an essentially liquid-impermeable base structure of flexible material such as rubber or synthetic material and defining a passage duct. The base structure has along its length radial openings for the escape of injection liquid from the passage duct and, along its length in the area of the radial openings, at least one longitudinal depression for receiving a strip of a material which is compressible under the pressure of the injection liquid and which covers the openings. A hose of liquid-permeable material surrounds the base structure and strip. A plurality of radial openings are provided in the base structure, and the associated depressions and strips are distributed around the circumference of the base structure angularly symmetrically in relation to the central longitudinal axis.

Description

Die Erfindung betrifft einen Injektionsschlauch für Arbeitsfugen an Betonbauwerken, mit einem aus flexiblem Material, wie Gummi oder Kunststoff, bestehenden, einen Durchtrittskanal umschließenden Grundkörper, welcher entlang seiner Länge radiale Öffnungen für den Austritt von Injektionsflüssigkeit aus dem Durchtrittskanal, und entlang seiner Länge im Bereich der radialen Öffnungen eine sich über seine Länge erstreckende Vertiefung für die Aufnahme eines die Öffnungen überdeckenden Streifens aus unter dem Druck der Injektionsflüssigkeit kompressiblen Material aufweist, und mit einem den Grundkörper und den Streifen umgebenden Schlauch aus flüssigkeitsdurchlässigem Material.The invention relates to an injection hose for construction joints on concrete structures, with a base body which comprises a flexible material, such as rubber or plastic, and surrounds a passage channel, which has radial openings along its length for the discharge of injection liquid from the passage channel, and along its length in the area of the radial openings has a recess extending over its length for receiving a strip covering the openings from material that is compressible under the pressure of the injection liquid, and with a tube of liquid-permeable material surrounding the base body and the strip.

Aus der DE-C 3 103 041 ist ein Injektionsschlauch bekannt, der einen inneren, eine flüssigkeitsdurchlässige Wandung aufweisenden Stützkörper, einen ersten, diesen Stützkörper umhüllenden flüssigkeitsdurchlässigen, netzwerkartigen Schlauch und einen zweiten, diesen ersten Schlauch umhüllenden flüssigkeitsdurchlässigen, netzwerkartigen Schlauch aufweist, wobei zwischen den beiden genannten netzwerkartigen Schläuchen ein schlauchförmiges Vlies vorgesehen ist, das für Betonpartikel von außen nach innen undurchlässig, für Dichtungsmittel von innen nach außen jedoch durchgängig sein soll.From DE-C 3 103 041 an injection hose is known which has an inner support body having a liquid-permeable wall, a first liquid-permeable network-like hose enveloping this support body and a second liquid-permeable, network-like hose enveloping this first hose, wherein between the In both of the above-mentioned network-like hoses, a tubular fleece is provided, which should be impermeable from outside to inside for concrete particles, but should be permeable from inside to outside for sealants.

Aus der EP-A 0 125 696 ist es auch bekannt, anstelle des Stützkörpers mit darüber angeordnetem erstem netzwerkartigen Schlauch einen stützkörperlosen Schlauch hoher Standfestigkeit zu verwenden, der in seiner Wandung eine Vielzahl von Durchbrechungen aufweist. Zwischen diesem inneren Schlauch und einem äußeren netzwerkartigen Schlauch ist eine schlauchartige Filterschicht angeordnet. Die Durchbrechungen für das Betondichtungsmittel des inneren Schlauches sind in bspw. vier parallel zur Schlauchlängsachse verlaufenden Reihen angeordnet, welche sich in gleichen Abständen voneinander befinden.From EP-A 0 125 696 it is also known to use, instead of the support body with the first network-like hose arranged above, a support body-free hose with high stability, which has a large number of openings in its wall. A hose-like filter layer is arranged between this inner hose and an outer network-like hose. The openings for the concrete sealant of the inner hose are arranged, for example, in four rows running parallel to the longitudinal axis of the hose, which are at equal distances from one another.

Derartige Injektionsschläuche sind wegen der Notwendigkeit der besonderen Auswahl der netzwerkartigen Schläuche und schlauchförmigen Vliese aufwendig in der Herstellung und nicht immer zuverlässig in der Anwendung, da eine Abstimmung der netzwerkartigen Schläuche und des schlauchförmigen Vlieses auf die Betonpartikel und das verwendete Dichtungsmittel erforderlich ist. Die bekannten Injektionsschläuche sind außerdem häufig wegen zu hoher Steifigkeit schlecht zu verlegen und im rauhen Baustellenbetrieb leicht beschädigbar, was die gleichmäßige Verteilung der Injektionsflüssigkeit über die gesamte Länge des Injektionsschlauches verhindert.Injection hoses of this type are complex to manufacture and not always reliable in use because of the need for the special selection of the network-like hoses and tubular nonwovens, since it is necessary to match the network-like hoses and the tubular nonwoven to the concrete particles and the sealant used. The known injection hoses are also often difficult to install due to excessive rigidity and are easily damaged in rough construction site operation, which prevents the uniform distribution of the injection liquid over the entire length of the injection hose.

Zur Beseitigung dieser Nachteile ist in der DE-U 8 425 518.8 ein Injektionsschlauch der eingangs genannten Art vorgeschlagen, bei welchem die einzige radiale Öffnung für den Austritt der Injektionsflüssigkeit als sich über die gesamte Länge des Grundkörpers erstreckender Schlitz ausgebildet ist und bei dem die Ränder des Streifens abgerundet und in entsprechenden Seitenmulden der Vertiefung aufgenommen sind. Der Streifen weist eine Feder auf, welche in den Schlitz eingreift. Zwar sind mit diesem Vorschlag die Nachteile des aus der DE-C 3 103 041 bekannten Injektionsschlauches behoben, er ist jedoch einer weiteren Verbesserung hinsichtlich einer gleichmäßigen Verteilung der Injektionsflüssigkeit in die Arbeitsfuge zugänglich.To eliminate these disadvantages, an injection hose of the type mentioned at the outset is proposed in DE-U 8 425 518.8, in which the only radial opening for the outlet of the injection liquid is designed as a slot which extends over the entire length of the base body and in which the edges of the Strip are rounded and received in corresponding recesses in the recess. The strip has a spring which engages in the slot. Although this proposal eliminates the disadvantages of the injection hose known from DE-C 3 103 041, it is amenable to further improvement with regard to a uniform distribution of the injection liquid into the construction joint.

Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, einen Injektionsschlauch der eingangs genannten Art so weiterzubilden, daß er einfacher herzustellen und zu handhaben sowie die Injektionsflüssigkeit zuverlässig gleichmäßig an die gewünschten Stellen gelangt.Proceeding from this, the object of the invention is to further develop an injection hose of the type mentioned at the outset in such a way that it is easier to manufacture and handle, and the injection liquid reaches the desired locations reliably and uniformly.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß mehrere radiale Öffnungen in dem aus im wesentlichen flüssigkeitsundurchlässigem Material bestehenden Grundkörper und die zugeordneten Vertiefungen und Streifen über den Umfang des Grundkörpers winkelsymmetrisch (n-strahligsymmetrisch; n=2) bezüglich der Längsachse verteilt sind sowie die Seitenwände der Vertiefungen und der zugehörigen Streifen von radial außen nach radial innen schräg aufeinander zulaufen.This object is achieved in that a plurality of radial openings in the base body consisting of essentially liquid-impermeable material and the associated depressions and strips are distributed over the circumference of the base body in an angularly symmetrical manner (n-ray symmetrical; n = 2) with respect to the longitudinal axis and the side walls of the Recesses and the associated strips run obliquely towards one another from radially outside to radially inside.

Durch die erfindungsgemäße Lösung wird ein einfach herstellbarer und handhabbarer Injektionsschlauch geschaffen, bei dem gewährleistet ist, daß die Injektionsflüssigkeit jeder gewünschten Stelle einer Arbeitsfuge problemlos zuführbar ist.The solution according to the invention creates an injection hose which is simple to manufacture and handle and in which it is ensured that the injection liquid can be fed to any desired location of a construction joint without any problems.

Eine bezüglich der Herstellung besonders zweckmäßige Ausführungsform der Erfindung sieht vor, daß die Vertiefungen und die zugeordneten Streifen geradlinig begrenzte Seitenwände aufweisen, die insbesondere (bezogen auf eine bestimmte Vertiefung) in einem spitzen Winkel zueinander verlaufen. Auch diese Ausführungsform ist insbesondere aus herstellungstechnischen Gründen sehr zweckmäßig, weil Grundkörper und Streifen leicht extrudierbar und die Streifen einfach in ihre Vertiefung einfügbar sind.An embodiment of the invention which is particularly expedient in terms of manufacture provides that the depressions and the associated strips have straight-sided side walls which, in particular (with respect to a certain depression) run at an acute angle to one another. This embodiment is also very expedient, in particular for manufacturing reasons, because the base body and strips can be easily extruded and the strips can simply be inserted into their recess.

Die Breite der Basis der Vertiefungen ist gemäß einem anderen Erfindungsmerkmal nur geringfügig größer als der Durchmesser der radialen Öffnungen in der betreffenden Richtung.According to another feature of the invention, the width of the base of the depressions is only slightly larger than the diameter of the radial openings in the relevant direction.

Zweckmäßig ist ein Durchmesser der Öffnungen von etwa 3 mm vorgesehen, während der Abstand der Öffnung vorteilhafterweise etwa 2 cm und der Durchmesser des Durchtrittskanals etwa 6 mm betragen.A diameter of the openings of approximately 3 mm is expediently provided, while the distance between the openings is advantageously approximately 2 cm and the diameter of the passage is approximately 6 mm.

Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, daß die radialen Öffnungen als in Längsreihen angeordnete Löcher oder Schlitze ausgebildet sind, wobei die Längsreihen in gleichen Winkelabständen über den Umfang des Grundkörpers verteilt sind. Bei dieser Ausführungsform besteht der Injektionsschlauch in vorteilhafter Weise lediglich aus einem Grundkörper und einer entsprechenden Anzahl von in den um den Umfang verteilten Vertiefungen vorgesehenen Streifen. Für verschiedene Anwendungsfälle kann dabei eine entsprechend unterschiedliche Anzahl von Lochreihen und zugehörigen Streifen vorgesehen sein. Insbesondere erscheint es aus Symmetriegründen zweckmäßig, vier Längsreihen von Öffnungen mit jeweils zugeordneten Vertiefungen und Streifen vorzusehen, die über den Umfang des Grundkörpers in gleichen Winkelabständen verteilt und angeordnet sind.According to a further advantageous embodiment of the invention, it is provided that the radial openings are designed as holes or slots arranged in longitudinal rows, the longitudinal rows being distributed at equal angular intervals over the circumference of the base body. In this embodiment, the injection hose advantageously consists only of a base body and a corresponding number of strips provided in the depressions distributed around the circumference. A correspondingly different number of rows of holes and associated strips can be provided for different applications. In particular, for reasons of symmetry, it appears expedient to provide four longitudinal rows of openings, each with associated depressions and strips, which extend over the circumference of the Base body are distributed and arranged at equal angular intervals.

Weiterbildungen der Erfindung sehen ferner vor, daß der Grundkörper aus Polyvinylchlorid besteht, daß der umgebende Schlauch aus einem Klöppelgewebe gefertigt ist und daß die die Öffnungen abdeckenden Streifen mit Vorteil aus Schaumgummi, Moosgummi oder Neopren bestehen, da hierdurch die erforderliche Kompressibilität einfach eingestellt werden kann.Further developments of the invention provide that the base body consists of polyvinyl chloride, that the surrounding hose is made of a bobbin lace fabric and that the strips covering the openings are advantageously made of foam rubber, foam rubber or neoprene, since this makes it easy to set the required compressibility.

Weitere Ziele, Merkmale, Vorteile und Anwendungsmöglichkeiten der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels anhand der beiliegenden Zeichnung. Dabei bilden alle beschriebenen und/oder bildlich dargestellten Merkmale für sich oder in beliebiger sinnvoller Kombination den Gegenstand der vorliegenden Erfindung, auch unabhängig von ihrer Zusammenfassung in den Ansprüchen oder deren Rückbeziehung.Further objectives, features, advantages and possible uses of the present invention result from the following description of an exemplary embodiment with reference to the accompanying drawing. All of the described and / or illustrated features, alone or in any meaningful combination, form the subject matter of the present invention, regardless of how they are summarized in the claims or their relationship.

Die einzige Figur veranschaulicht im Querschnitt einen die Erfindung aufweisenden Injektionsschlauch.The single figure illustrates in cross section an injection hose having the invention.

Der Injektionsschlauch 1 besteht aus einem Grundkörper 2, der eine im wesentlichen hohlzylindrische Wandung hat und dadurch einen durchgehenden zentralen zylindrischen Durchtrittskanal 3 bildet.The injection hose 1 consists of a base body 2, which has an essentially hollow cylindrical wall and thereby forms a continuous central cylindrical passage 3.

Durch diesen Durchtrittskanal 3 wird an einem oder beiden Enden des Injektionsschlauches 1 bzw. gegebenenfalls auch bei dazwischen vorgesehenen Anschlüssen die Injektionsflüssigkeit zugeführt, um sie über die Länge der abzudichtenden Arbeitsfugen zu verteilen. Uber den Umfang des Grundkörpers 2 in gleichen Winkelabständen verteilt sind vier Vertiefungen 5, 6, 7 und 8 vorgesehen, die sich über die Länge des Grundkörpers 2 erstrecken. Zur Strömungsverbindung des Durchtrittskanales 3 und der Vertiefungen 5, 6, 7, 8 sind radial verlaufende Öffnungen 9, 10, 11 und 12 vorgesehen, die einerseits in den Durchtrittskanal 3 und andererseits in die Vertiefungen 5, 6, 7 und 8 münden. Die Vertiefungen 5, 6, 7 und 8 sind aus Symmetriegründen gleich ausgebildet, so daß hier nur die Vertiefung 5 näher beschrieben zu werden braucht. Die Vertiefung 5 weist zwei Seitenwände 13, 14 auf, die im Winkel schräg nach innen zusammenlaufend zueinander angeordnet sind, so daß zum Außenrand des Grundkörpers 2 eine Erweiterung vorliegt. Der von den Seitenwänden 13, 14 gebildete Winkel ist spitz. Die Basis 15 der Vertiefung 5 ist nicht wesentlich breiter als der Durchmesser der zugeordneten Öffnungen 9. Die Basen 15 der Vertiefungen 5, 6, 7 und 8 sind abgerundet und liegen auf einer gemeinsamen (gedachten) Zylinderfläche. In den Vertiefungen 5, 6, 7 und 8 sind Streifen 16, 17, 18 und 19 angeordnet, deren Form der Form der Vertiefungen 5, 6, 7 und 8 angepaßt ist. Sie liegen bündig mit dem Außenumfang der zwischen den Vertiefungen 5, 6, 7 und 8 stehengebliebenen Vorsprünge des Grundkörpers 2.Through this passage channel 3, the injection liquid is supplied to one or both ends of the injection hose 1 or, if appropriate, also with connections provided in between, in order to distribute it over the length of the construction joints to be sealed. Four depressions 5, 6, 7 and 8 are provided over the circumference of the base body 2 at equal angular intervals and extend over the length of the base body 2. Radially extending openings 9, 10, 11 and 12 are provided for the flow connection of the passage 3 and the depressions 5, 6, 7, 8, which on the one hand open into the passage 3 and on the other hand into the depressions 5, 6, 7 and 8. The recesses 5, 6, 7 and 8 are of identical design for reasons of symmetry, so that only the recess 5 need be described in more detail here. The recess 5 has two side walls 13, 14, which are arranged at an angle converging inwards towards one another, so that there is an extension to the outer edge of the base body 2. The angle formed by the side walls 13, 14 is acute. The base 15 of the recess 5 is not significantly wider than the diameter of the associated openings 9. The bases 15 of the recesses 5, 6, 7 and 8 are rounded and lie on a common (imaginary) cylindrical surface. Strips 16, 17, 18 and 19 are arranged in the depressions 5, 6, 7 and 8, the shape of which is adapted to the shape of the depressions 5, 6, 7 and 8. They lie flush with the outer circumference of the projections of the base body 2 that have remained between the depressions 5, 6, 7 and 8.

Der Abstand der Öffnungen 9, 10, 11 und 12 beträgt in Axialrichtung zweckmäßig etwa 2 cm, der Durchmesser des Durchtrittskanals 3 beträgt zweckmäßig etwa 6 mm, während der Durchmesser der Öffnungen 9, 10, 11 und 12 bei etwa 3 mm liegt. Auch die Tiefe der Vertiefungen 5, 6, 7 und 8 beträgt zweckmäßig 3 mm. Die Öffnungen 9, 10, 11 und 12 können in Axialrichtung gesehen gegenüber den Öffnungen der Nachbarlängsreihe versetzt sein, um den Injektionsflüssigkeitsaustritt zu vergleichmäßigen. Als Material für den Grundkörper 2 ist Polyvinylchlorid vorteilhaft, während die Streifen 16, 17, 18 und 19 wegen der gewünschten Kompressibilität aus Schaumgummi, Moosgummi oder Neopren bestehen. Der Grundkörper 2 und die in den Vertiefungen 5, 6, 7 und 8 angeordneten Streifen 16, 17, 18 und 19, die mit dem Außenumfang des Grundkörpers 2 im wesentlichen abschließen, sind von einem Schlauch 20 aus einem flüssigkeitsdurchlässigen Material umgeben, der beispielsweise aus einem Klöppelgewebe bestehen kann. Hierdurch werden die Streifen 16, 17, 18 und 19 in ihren Vertiefungen 5, 6, 7 und 8 sicher gehalten, auch wenn der Druck der Injektionsflüssigkeit von innen ansteht.The distance between the openings 9, 10, 11 and 12 is expediently about 2 cm in the axial direction, the diameter of the passage 3 is expediently about 6 mm, while the diameter of the openings 9, 10, 11 and 12 is about 3 mm. The depth of the depressions 5, 6, 7 and 8 is also expediently 3 mm. The openings 9, 10, 11 and 12, viewed in the axial direction, can be offset with respect to the openings in the adjacent longitudinal row in order to even out the injection liquid outlet. Polyvinyl chloride is advantageous as the material for the base body 2, while the strips 16, 17, 18 and 19 consist of foam rubber, foam rubber or neoprene because of the desired compressibility. The base body 2 and the strips 16, 17, 18 and 19 arranged in the depressions 5, 6, 7 and 8, which essentially end with the outer circumference of the base body 2, are surrounded by a tube 20 made of a liquid-permeable material, which is made of, for example a bobbin fabric can exist. As a result, the strips 16, 17, 18 and 19 are held securely in their depressions 5, 6, 7 and 8, even when the pressure of the injection liquid is present from the inside.

Bei dem erfindungsgemäßen Injektionsschlauch 1 ist das Eindringen von Beton-Bestandteilen von außen in den Durchtrittskanal 3 zuverlässig vermieden, da bei Erhöhung des Druckes von außen die Streifen 16,17,18 und 19 die in Längsreihen angeordneten Öffnungen 9, 10, 11 und 12 nur noch besser verschließen. Drückt dagegen die Injektionsflüssigkeit aus dem Durchtrittskanal 3 nach außen gegen die Streifen 16, 17, 18 und 19, so werden diese aufgrund ihrer Materialbeschaffenheit zusammengepreßt und die Fugen zwischen den Vertiefungen 5, 6,7 und 8 und den Streifen 16, 17, 18 und 19 so erweitert, daß die Injektionsflüssigkeit aus dem Injektionsschlauch 1 gleichmäßig über seine Länge und seinen Umfang austreten kann. Die Streifen 16, 17, 18 und 19 werden dabei durch den äußeren umhüllenden Schlauch 20 an Ort und Stelle gehalten, so daß nach dem Durchtritt der Injektionsflüssigkeit die Öffnungen 9, 10, 11 und 12 wieder zuverlässig verschlossen werden.In the injection hose 1 according to the invention, the penetration of concrete components from the outside into the passage 3 is reliably avoided, since when the pressure from the outside increases, the strips 16, 17, 18 and 19 only the openings 9, 10, 11 and 12 arranged in longitudinal rows seal even better. If, on the other hand, the injection liquid from the passage 3 presses outwards against the strips 16, 17, 18 and 19, these are compressed due to their material properties and the joints between the depressions 5, 6, 7 and 8 and the strips 16, 17, 18 and 19 expanded so that the injection liquid can emerge from the injection hose 1 evenly over its length and circumference. The strips 16, 17, 18 and 19 are held in place by the outer enveloping hose 20, so that the openings 9, 10, 11 and 12 are reliably closed again after the passage of the injection liquid.

Der erfindungsgemäße Injektionsschlauch 1 ist wegen seiner Dickwandigkeit relativ unempfindlich gegen Beschädigungen. Auch kann der umhüllende Schlauch 20 größere Beschädigungen in Kauf nehmen, ohne seine Funktion als Halterung für die Streifen 16, 17, 18 und 19 in den Vertiefungen 5, 6, 7 und 8 zu verlieren. Aufwendige Stützkörper u. dgl. sind bei dem erfindungsgemäßen Injektionsschlauch 1 nicht erforderlich, so daß sich insgesamt ein wirtschaftlich herzustellender, leicht, zuverlässig und sicher zu handhabender Injektionsschlauch 1 ergibt, der auch zuverlässig in seiner Funktion, insbesondere auch in der gleichmäßigen Verteilung der Injektionsflüssigkeit ist.The injection hose 1 according to the invention is relatively insensitive to damage because of its thick walls. The enveloping hose 20 can also accept greater damage without losing its function as a holder for the strips 16, 17, 18 and 19 in the depressions 5, 6, 7 and 8. Elaborate support body u. The like. Are not required in the injection hose 1 according to the invention, so that overall there is an economical, easy, reliable and safe to use injection hose 1, which is also reliable in its function, in particular also in the uniform distribution of the injection liquid.

Bezugszeichenliste:Reference symbol list:

  • 1 Injektionsschlauch1 injection hose
  • 2 Grundkörper2 basic bodies
  • 3 Durchtrittskanal3 passage channel
  • 5 Vertiefung5 deepening
  • 6 Vertiefung6 deepening
  • 7 Vertiefung7 deepening
  • 8 Vertiefung8 deepening
  • 9 Öffnung9 opening
  • 10 Öffnung10 opening
  • 11 Öffnung11 opening
  • 12 Öffnung12 opening
  • 13 Seitenwand13 side wall
  • 14 Seitenwand14 side wall
  • 15 Basis15 base
  • 16 Streifen16 strips
  • 17 Streifen17 strips
  • 18 Streifen18 strips
  • 19 Streifen19 strips
  • 20 Schlauch20 hose

Claims (12)

1. Injection tube for expansion joints in concrete structures with a backing (2) made of flexible material as rubber or plastic surrounding a passage (3), provided over its length with radial openings (9 to 12) for the outlet of injection fluid from the passage (3), and over its length in the area of the radial openings (9 to 12) with at least one recess (5 to 8) extending over its length for receiving a strip (16 to19) covering the openings (9 to 12) made of a material which is compressible under the pressure of the injection fluid, and with a tube (20) of fluid-pervious material surrounding the backing (2) and the strip (16 to 19), characterized in that several radial openings (9 to 12) in the backing (2), which consists of essentially fluid-impervious material, and the coordinated recesses (5 to 8) and strips (16 to 19) are distributed over the periphery of the backing (2) in angular-symmetrical (n-radial symmetrical; n≧2) manner as referred to the longitudinal central axis as well as that the lateral walls (13, 14) of the recesses (5 to 8) and the coordinated strips (16 to 19) slant towards one another from radially outward to radially inward.
2. Injection tube according to claim 1, characterized in that the lateral walls (13, 14) of the recesses (5 to 8) and the coordinated strips (16 to 19) enclose an acute angle.
3. Injection tube according to one of the preceding claims, characterized in that the width of the base (15) of the recesses (5 to 8) is only slightly larger than the diameter of the recesses (8 to 12) in the direction concerned.
Injection tube according to one of the preceding claims, characterized in that the recesses (5 to 8) and the coordinated strips (16 to 19) have rectilinearly bounded lateral walls (13, 14).
5. Injection tube according to one of claims 1 to 4, characterized in that the radial openings (9 to 12)are formed as individual holes or slots disposed in longitudinal rows.
6. Injection tube according to one of claims 1 to 5, characterized in that four longitudinal rows of openings (9 to 12) with coordinated recesses (5 to 8) and strips (16 to 19) are disposed so as to be distributed over the periphery of the backing (2) at the same angular space.
7. Injection tube according to one of the preceding claims, characterized in that the axial distance of the openings (9 to 12) amounts to about 2 cm and the diameter of the openings (9 to 12) preferrably to about 3 mm.
8. Injection tube according to one of the preceding claims, characterized in that the diameter of the passage (3) amounts to about 3 mm.
9. Injection tube according to one of the preceding claims, characterized in that the depth of the recesses ( 5 to 8) amounts to about 3 mm.
10. Injection tube according to one of the preceding claims, characterized in that the backing (2) consists of polyvinylchlorid.
11. Injection tube according to one of the preceding claims, characterized in that the surrounding tube consists of a bobbin lace tissue.
12. Injection tube according to one of the preceding claims, characterized in that the strips (16 to 19) consist of foam rubber, sponge rubber, or neoprene.
EP86103890A 1985-04-04 1986-03-21 Injection hose for a dilatation joint in concrete structures Expired EP0199108B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86103890T ATE39720T1 (en) 1985-04-04 1986-03-21 INJECTION HOSE FOR CONSTRUCTION JOINTS ON CONCRETE STRUCTURES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3512470A DE3512470C2 (en) 1985-04-04 1985-04-04 Injection hose for construction joints on concrete structures
DE3512470 1985-04-04

Publications (2)

Publication Number Publication Date
EP0199108A1 EP0199108A1 (en) 1986-10-29
EP0199108B1 true EP0199108B1 (en) 1989-01-04

Family

ID=6267386

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86103890A Expired EP0199108B1 (en) 1985-04-04 1986-03-21 Injection hose for a dilatation joint in concrete structures

Country Status (6)

Country Link
US (1) US4722479A (en)
EP (1) EP0199108B1 (en)
AT (1) ATE39720T1 (en)
DE (2) DE3512470C2 (en)
DK (1) DK162454C (en)
NO (1) NO166810C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3929848A1 (en) * 1989-09-08 1991-03-14 Pflieger Lieselotte INJECTION HOSE FOR SEALING JOINTS IN CONCRETE CONSTRUCTIONS
DE4419376C1 (en) * 1994-05-27 1995-08-31 Michael Dipl Chem Schoeniger Injection tube for sealing joints in concrete
AT401946B (en) * 1994-07-15 1996-12-27 Strasser Daniel GASKET FOR WORK JOINTS IN AND ON CONCRETE CONSTRUCTIONS

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JPS63163860A (en) * 1986-12-26 1988-07-07 Toshiba Corp Electrophotographic sensitive body
NO177939C (en) * 1991-03-19 1995-12-20 Bjarne Sem Injection hose for chemical injection in concrete
DE4123067A1 (en) * 1991-07-12 1993-01-14 Betonbau Zubehoer Handel METHOD FOR SEALING JOINTS ON CONSTRUCTIONS
DE4124628A1 (en) * 1991-07-25 1993-01-28 Betonbau Zubehoer Handel INJECTION HOSE FOR JOINTS ON CONSTRUCTIONS
DE4215731A1 (en) * 1992-05-13 1993-11-18 Rene P Schmid Process for erecting concrete walls using formwork, and device and means for carrying out this process
DE4332589C2 (en) * 1993-09-24 1996-01-04 Bbz Inj Und Abdichtungstechnik Injection hose for construction joints on concrete structures
DE4340845C2 (en) * 1993-11-26 2002-12-19 Ibs Injektionstechnologie Gmbh Injection profile for sealing joints on buildings
AT404745B (en) * 1995-07-27 1999-02-25 Strasser Daniel GASKET FOR WORK JOINTS IN AND ON CONCRETE CONSTRUCTIONS
DE19625209A1 (en) * 1996-06-25 1998-01-02 Sika Ag Injection hose and process for its manufacture
DE19726403C1 (en) * 1997-06-21 1999-02-04 Rasbach Klaus Injection tube for cement constructions
WO1999013174A1 (en) 1997-09-11 1999-03-18 Betomax Kunststoff- Und Metallwarenfabrik Gmbh & Co. Kg Compression tubing for producing water-impermeable or only slightly water-permeable, gastight and/or friction-locked building joints
US6286271B1 (en) 1999-05-26 2001-09-11 Carl Cheung Tung Kong Load-bearing structural member
JP2002089757A (en) * 2000-09-18 2002-03-27 Hara Kogyo Kk Injection hose and placing joint method of concrete
AU2003209863A1 (en) * 2003-03-05 2004-09-28 Herman De Neef Means and method for sealing concrete construction joints and method for manufacturing such sealing means
DE102008010660B3 (en) * 2008-02-22 2009-09-24 Repower Systems Ag Construction of a wind turbine
CN102296637A (en) * 2011-06-13 2011-12-28 华南理工大学 Seepage-proofing joint device of diaphragm wall
US20140183278A1 (en) * 2013-01-03 2014-07-03 Clive Sofus Michelsen Perforated fluid dispensing hose or tube for the purpose of applying liquids and/or gases to railroad tracks including railroad switches, railroad crossings, bridge overheads and tunnel walls
EP3392422A1 (en) 2017-04-18 2018-10-24 Roland Wolf Device for the subsequent stabilisation of water-permeable gap chamber breaks in bridges, tunnels and buildings
DE102017108167A1 (en) 2017-04-18 2018-10-18 Roland Wolf Device for the subsequent stabilization of water-permeable joint chamber cracks in bridges, tunnels and buildings

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DE8425518U1 (en) * 1984-08-29 Koob, Kunibert, Ing.(grad.), 4234 Alpen Injection tube
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3929848A1 (en) * 1989-09-08 1991-03-14 Pflieger Lieselotte INJECTION HOSE FOR SEALING JOINTS IN CONCRETE CONSTRUCTIONS
DE4419376C1 (en) * 1994-05-27 1995-08-31 Michael Dipl Chem Schoeniger Injection tube for sealing joints in concrete
AT401946B (en) * 1994-07-15 1996-12-27 Strasser Daniel GASKET FOR WORK JOINTS IN AND ON CONCRETE CONSTRUCTIONS

Also Published As

Publication number Publication date
NO166810B (en) 1991-05-27
DE3512470A1 (en) 1986-10-09
DE3661643D1 (en) 1989-02-09
ATE39720T1 (en) 1989-01-15
DK162454B (en) 1991-10-28
DK162454C (en) 1992-03-23
DE3512470C2 (en) 1996-01-04
DK155386D0 (en) 1986-04-04
US4722479A (en) 1988-02-02
NO861284L (en) 1986-10-06
NO166810C (en) 1991-09-04
DK155386A (en) 1986-10-05
EP0199108A1 (en) 1986-10-29

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