EP1322821B1 - Water-impervious mat - Google Patents

Water-impervious mat Download PDF

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Publication number
EP1322821B1
EP1322821B1 EP01971949A EP01971949A EP1322821B1 EP 1322821 B1 EP1322821 B1 EP 1322821B1 EP 01971949 A EP01971949 A EP 01971949A EP 01971949 A EP01971949 A EP 01971949A EP 1322821 B1 EP1322821 B1 EP 1322821B1
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EP
European Patent Office
Prior art keywords
web
foamed plastics
outer skin
sealing mat
continuous outer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01971949A
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German (de)
French (fr)
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EP1322821A1 (en
Inventor
Ulrich Von Fransecky
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Huesker Synthetic GmbH and Co
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Huesker Synthetic GmbH and Co
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Publication of EP1322821A1 publication Critical patent/EP1322821A1/en
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Anticipated expiration legal-status Critical
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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
    • E02D31/002—Ground foundation measures for protecting the soil or subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/004—Sealing liners

Definitions

  • the invention relates to a bentonite or other highly swellable clay at least partially filled sealing mat with a carrier web and a cover sheet which is connected by seams with the carrier web, wherein the powdery or granular swellable clay is incorporated in an open-cell foam layer.
  • the swellable clay is incorporated in the mat according to the published patent application DE 197 38 169 A in an aerosol or in an open-cell foam layer, and a textile carrier web, the intermediate layer of swellable clay and a textile cover sheet are connected to each other via extending over the longitudinal direction of the sealing mat seams, which have a distance of 20 to 50 mm.
  • the sealing mat according to the published patent application DE 198 58 180 A is composed of a lower carrier web of ribbon fabric, a structural layer applied thereto, which is formed by a loose nonwoven layer or an open-cell foam layer or a honeycomb structure and is embedded in the swellable clay, and a cover sheet, which - like the carrier web - consists of ribbon fabric.
  • carrier web, intermediate layer and cover sheet are connected to each other via longitudinally parallel seams.
  • DE 196 49 628 A1 has proposed to arrange a layer which decouples the water balance between two open-cell elastic foam layers containing swellable clay and consists of a nonwoven fabric or an elastic open-cell foam layer which is coated on one or both sides with a water-retaining polymer coated or filled.
  • the capillary-breaking layer may also be an open-cell elastic foam provided with a film and / or a film on one side or on both sides. In the case of this mat composed of more than three layers, the open-pore and coated foam layer can also form the carrier web.
  • the object of the invention is to provide a sealing mat of the type mentioned, in which the occurrence of shrinkage cracks largely prevented and rinses such cracks are avoided, without providing two bentonite, which are separated by a decoupling the water balance layer or capillary-breaking layer.
  • the carrier web and the foam layer is formed by an elastic foam plastic sheet having a closed outer skin. Due to the fact that the bentonite is incorporated in the cells of the foamed plastic sheet that are open only on one side, the complete drying out of the bentonite swollen by the uptake of water is very delayed and the cell walls and the closed outer skin of the foamed plastic sheet prevent the cracking of cracks in the bentonite layer. so that erosion of the sealing mat is not to be feared.
  • the open-cell foam layer with the closed outer skin is preferably soft-elastic and has a leathery-tough outer skin.
  • This foam sheet may be 3 to 10 mm thick and is sewn after filling with bentonite with a cover layer, which is preferably formed from a nonwoven fabric or a ribbon fabric.
  • the seams which connect the carrier web with the cover web expediently extend in the longitudinal direction and have a distance of 20 to 50 mm from each other.
  • the foam layer and in particular the reinforced outer skin with short glass, mineral or plastic fibers are expedient.
  • the sealing mat can absorb high mechanical loads on both sides, the closed outer skin of the foam plastic sheet is reinforced by a textile reinforcement sheet, which is sewn together with the at least partially filled with bentonite foam plastic sheet with the cover sheet.
  • the foam plastic sheet may also be glued onto a textile reinforcement sheet or otherwise connected in a planar manner before being filled with bentonite. This can be done by, for example, the foamed plastic sheet is foamed onto the Arm réellesbahn and is thus intimately connected with its closed outer skin with the Arm michsbahn.
  • the foam plastic sheet with open-sided cells and a closed outer skin is advantageously made of a foam plastic sheet twice as thick, which has a closed outer skin on both sides and which is severed along its median plane.
  • integral or structural foams have on both sides a closed outer skin and have an open-celled core, wherein the cell diameters decrease from the middle to the edge. If this foam layer is severed in its median plane, then just the relatively large cells are completely open, so that can be filled without difficulty, the foam plastic sheet with bentonite. By shaking or kneading the foam plastic layer, the degree of filling can be increased.
  • the carrier web 1 consists of an elastic foam plastic sheet with a closed outer skin 4 and open cells 5, in which the bentonite is embedded, and a cover sheet 2, which is sewn onto the filled with bentonite foam plastic sheet.
  • the seams 3 extend in the longitudinal direction of the sealing mat and have a distance of 20 or 30 mm. So that the outer skin 4 can also absorb greater local loads, the foam plastic sheet and in particular the outer skin 4 is fiber-reinforced.
  • As a material for the carrier web 1 of elastic foam plastic in particular polyethylene, polypropylene or polyamide in question.
  • a textile reinforcement sheet 6 which is sewn together with the filled with bentonite foam plastic sheet with the cover sheet 2.
  • the seams 3 are designed so that the closed outer skin 4 and the Arm michsbahn 6 maintains a distance from the cover sheet 2, which corresponds approximately to the thickness of the foam plastic sheet.
  • a foam plastic sheet 10 twice as thick is first produced, which has a closed outer skin on both sides. After curing of this foam plastic sheet 10, this is severed along its center plane 11. The cutting can be done by cutting, sawing or even by a hot wire or laser beams. The foam plastic sheets can then be wound up and fed to further processing.

Abstract

The invention relates to a water-impervious mat, at least partially filled with bentonite or another clay that has strong swelling characteristics. Said mat consists of a support web (1) and a cover web (2), which is connected to the support web by seams (3). The aim of the invention is to delay the clay layer from rapidly drying out and to prevent cracks caused by shrinkage or contraction. To achieve this, the support web (1) is an elastic web consisting of foamed plastic with a closed outer skin (4) and open cells (5), in which the bentonite is contained and the open side of the cells (5) is sealed by the cover web (2).

Description

Die Erfindung bezieht sich auf eine mit Bentonit oder einem anderen stark quellfähigen Ton zumindest teilweise gefüllte Dichtungsmatte mit einer Trägerbahn und einer Deckbahn, die über Nähte mit der Trägerbahn verbunden ist, wobei der pulver- oder granulatförmige quellfähige Ton in einer offenzelligen Schaumstoffschicht eingearbeitet ist.The invention relates to a bentonite or other highly swellable clay at least partially filled sealing mat with a carrier web and a cover sheet which is connected by seams with the carrier web, wherein the powdery or granular swellable clay is incorporated in an open-cell foam layer.

Dichtungsmatten dieser Art sind bekannt aus den Offenlegungsschriften DE 197 38 169 A und DE 198 58 180 A.Sealing mats of this type are known from the published patent applications DE 197 38 169 A and DE 198 58 180 A.

Damit der pulverförmige oder granulatförmige Bentonit sich beim Transport und beim Verlegen der beispielsweise 4 m breiten und 30 m langen Matte nicht verlagert, ist bei der Matte nach der Offenlegungsschrift DE 197 38 169 A der quellfähige Ton in ein Aerovlies oder in eine offenzellige Schaumstofflage eingearbeitet, und eine textile Trägerbahn, die Zwischenschicht aus quellfähigem Ton und eine textile Deckbahn sind über in Längsrichtung der Dichtungsmatte verlaufende Nähte, die einen Abstand von 20 bis 50 mm haben, miteinander verbunden.So that the powdered or granular bentonite does not shift during transport and when laying the example 4 m wide and 30 m long mat, the swellable clay is incorporated in the mat according to the published patent application DE 197 38 169 A in an aerosol or in an open-cell foam layer, and a textile carrier web, the intermediate layer of swellable clay and a textile cover sheet are connected to each other via extending over the longitudinal direction of the sealing mat seams, which have a distance of 20 to 50 mm.

Auch die Dichtungsmatte nach der Offenlegungsschrift DE 198 58 180 A setzt sich zusammen aus einer unteren Trägerbahn aus Bändchengewebe, einer darauf aufgebrachten Strukturlage, die von einer lockeren Vlieslage oder einer offenporigen Schaumstoffschicht oder einer wabenförmigen Struktur gebildet wird und in die quellfähiger Ton eingelagert wird, und einer Deckbahn, welche - wie die Trägerbahn - aus Bändchengewebe besteht. Auch hier werden Trägerbahn, Zwischenschicht und Deckbahn über in Längsrichtung parallel verlaufende Nähte miteinander verbunden.The sealing mat according to the published patent application DE 198 58 180 A is composed of a lower carrier web of ribbon fabric, a structural layer applied thereto, which is formed by a loose nonwoven layer or an open-cell foam layer or a honeycomb structure and is embedded in the swellable clay, and a cover sheet, which - like the carrier web - consists of ribbon fabric. Again, carrier web, intermediate layer and cover sheet are connected to each other via longitudinally parallel seams.

Bei den bekannten Dichtungsmatten besteht die Gefahr, daß Schrumpfrisse in der Bentonitschicht auftreten, wenn nach dem Aufquellen des Bentonits eine längere Trockenperiode eintritt und dadurch dem Tonmineral Wasser entzogen wird. Diese Schrumpfrisse können zur Folge haben, daß bei plötzlichem Wasserzutritt Ausspülungen auftreten, wodurch die Dichtungsmatte in erheblichem Maße undicht wird.In the known sealing mats there is a risk that shrinkage cracks in the bentonite occur when after the swelling of the bentonite a longer drying period occurs and thereby the clay mineral water is removed. These shrinkage cracks can have the consequence that rinses occur in the event of sudden water ingress, as a result of which the sealing mat becomes leaking to a considerable extent.

Zur Vermeidung derartiger Schrumpfrisse oder Trockenrisse wurde in der DE 196 49 628 A1 vorgeschlagen, zwischen zwei quellfähigen Ton enthaltenden offenporigen elastischen Schaumstoffschichten eine den Wasserhaushalt entkoppelnde Schicht anzuordnen, die aus einem Vliesstoff oder einer elastischen offenporigen Schaumstoffschicht besteht, die einseitig oder beidseitig mit einem wasserhaltenden Polymer beschichtet oder befüllt ist. Die kapillarbrechende Schicht kann auch ein offenporiger elastischer Schaumstoff sein, der auf einer Seit oder auf beiden Seiten mit einer Folie und/oder einem Film versehen ist. Bei dieser aus mehr als drei Schichten sich zusammensetzenden Matte kann die offenporige und beschichtete Schaumstoffschicht auch die Trägerbahn bilden.In order to avoid such shrinkage cracks or drying cracks, DE 196 49 628 A1 has proposed to arrange a layer which decouples the water balance between two open-cell elastic foam layers containing swellable clay and consists of a nonwoven fabric or an elastic open-cell foam layer which is coated on one or both sides with a water-retaining polymer coated or filled. The capillary-breaking layer may also be an open-cell elastic foam provided with a film and / or a film on one side or on both sides. In the case of this mat composed of more than three layers, the open-pore and coated foam layer can also form the carrier web.

Aufgabe der Erfindung ist es, eine Dichtungsmatte der eingangs genannten Art zu schaffen, bei der das Auftreten von Schwundrissen weitgehend verhindert und Ausspülungen derartiger Risse vermieden werden, ohne zwei Bentonitschichten vorzusehen, die durch eine den Wasserhaushalt entkoppelnde Schicht bzw. kapillarbrechende Schicht voneinander getrennt sind.The object of the invention is to provide a sealing mat of the type mentioned, in which the occurrence of shrinkage cracks largely prevented and rinses such cracks are avoided, without providing two bentonite, which are separated by a decoupling the water balance layer or capillary-breaking layer.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Trägerbahn und die Schaumstoffschicht von einer elastischen Schaumkunststoffbahn gebildet ist, die eine geschlossene Außenhaut aufweist. Dadurch, daß der Bentonit in den nur an einer Seite offenen Zellen der Schaumkunststoffbahn eingelagert ist, wird einerseits das völlige Austrocknen des durch Aufnahme von Wasser gequollenen Bentonits sehr verzögert und die Zellwände sowie die geschlossene Außenhaut der Schaumkunststoffbahn verhindern ein Ausspülen von Rissen in der Bentonitschicht, so daß ein Erodieren der Dichtungsmatte nicht zu befürchten ist.This object is achieved in that the carrier web and the foam layer is formed by an elastic foam plastic sheet having a closed outer skin. Due to the fact that the bentonite is incorporated in the cells of the foamed plastic sheet that are open only on one side, the complete drying out of the bentonite swollen by the uptake of water is very delayed and the cell walls and the closed outer skin of the foamed plastic sheet prevent the cracking of cracks in the bentonite layer. so that erosion of the sealing mat is not to be feared.

Die offenzellige Schaumstoffschicht mit der geschlossenen Außenhaut ist vorzugsweise weichelastisch und hat eine ledrig-zähe Außenhaut. Diese Schaumstoffbahn kann 3 bis 10 mm dick sein und wird nach dem Befüllen mit Bentonit mit einer Deckschicht vernäht, die vorzugsweise aus einem Vliesstoff oder einem Bändchengewebe gebildet ist. Die Nähte, welche die Trägerbahn mit der Deckbahn verbinden, verlaufen zweckmäßigerweise in Längsrichtung und haben einen Abstand von 20 bis 50 mm voneinander. Um ein Einreißen der geschlossenen Außenhaut der Schaumkunststoffbahn zu vermeiden, ist es zweckmäßig, die Schaumstoffschicht und insbesondere die geschlossene Außenhaut mit kurzen Glas-, Mineral- oder Kunststoffasern zu verstärken.The open-cell foam layer with the closed outer skin is preferably soft-elastic and has a leathery-tough outer skin. This foam sheet may be 3 to 10 mm thick and is sewn after filling with bentonite with a cover layer, which is preferably formed from a nonwoven fabric or a ribbon fabric. The seams which connect the carrier web with the cover web, expediently extend in the longitudinal direction and have a distance of 20 to 50 mm from each other. In order to avoid tearing of the closed outer skin of the foam plastic sheet, it is expedient, the foam layer and in particular the reinforced outer skin with short glass, mineral or plastic fibers.

Damit die Dichtungsmatte auf beiden Seiten hohe mechanische Belastungen aufnehmen kann, ist die geschlossene Außenhaut der Schaumkunststoffbahn durch eine textile Armierungsbahn verstärkt, die zusammen mit der zumindest teilweise mit Bentonit gefüllten Schaumkunststoffbahn mit der Deckbahn vernäht ist. Die Schaumkunststoffbahn kann auch vor dem Befüllen mit Bentonit auf eine textile Armierungsbahn aufgeklebt oder auf andere Art flächig verbunden sein. Dies kann dadurch geschehen, daß beispielsweise die Schaumkunststoffbahn auf die Armierungsbahn aufgeschäumt ist und dadurch mit ihrer geschlossenen Außenhaut innig mit der Armierungsbahn verbunden ist.Thus, the sealing mat can absorb high mechanical loads on both sides, the closed outer skin of the foam plastic sheet is reinforced by a textile reinforcement sheet, which is sewn together with the at least partially filled with bentonite foam plastic sheet with the cover sheet. The foam plastic sheet may also be glued onto a textile reinforcement sheet or otherwise connected in a planar manner before being filled with bentonite. This can be done by, for example, the foamed plastic sheet is foamed onto the Armierungsbahn and is thus intimately connected with its closed outer skin with the Armierungsbahn.

Die Schaumkunststoffbahn mit einseitig offenen Zellen und einer geschlossenen Außenhaut ist vorteilhafterweise aus einer doppelt so dicken Schaumkunststoffbahn hergestellt, die beidseitig eine geschlossene Außenhaut aufweist und die längs ihrer Mittelebene durchtrennt wird. Erfahrungsgemäß besitzen Integral- oder Strukturschaumstoffe beidseitig eine geschlossene Außenhaut und haben einen offenzelligen Kern, wobei die Zellendurchmesser von der Mitte zum Rand hin abnehmen. Wird diese Schaumstoffschicht in ihrer Mittelebene durchtrennt, dann sind gerade die relativ großen Zellen völlig offen, so daß sich ohne Schwierigkeiten die Schaumkunststoffbahn mit Bentonit füllen läßt. Durch Rütteln oder Kneten der Schaumkunststoffschicht läßt sich der Füllungsgrad steigern.The foam plastic sheet with open-sided cells and a closed outer skin is advantageously made of a foam plastic sheet twice as thick, which has a closed outer skin on both sides and which is severed along its median plane. Experience has shown that integral or structural foams have on both sides a closed outer skin and have an open-celled core, wherein the cell diameters decrease from the middle to the edge. If this foam layer is severed in its median plane, then just the relatively large cells are completely open, so that can be filled without difficulty, the foam plastic sheet with bentonite. By shaking or kneading the foam plastic layer, the degree of filling can be increased.

In der folgenden Beschreibung werden Ausführungsbeispiele der Erfindung unter Bezugnahme auf die Zeichnungen näher erläutert. Diese zeigen in

Fig. 1
eine perspektivische Ansicht der erfindungsgemäßen Dichtungsmatte,
Fig. 2
eine Draufsicht auf eine Dichtungsmatte, bei der die geschlossene Außenhaut der Schaumkunststoffbahn durch eine Armierungsbahn aus Geweben verstärkt ist,
Fig. 3
schematische Darstellung der Herstellung der offenzelligen Schaumkunststoffbahn mit geschlossener Außenhaut.
In the following description, embodiments of the invention will be explained in more detail with reference to the drawings. These show in
Fig. 1
a perspective view of the sealing mat according to the invention,
Fig. 2
a top view of a sealing mat in which the closed outer skin of the foam plastic sheet is reinforced by a reinforcing web of tissues,
Fig. 3
schematic representation of the production of the open-cell foam plastic sheet with closed outer skin.

Wie die Fig. 1 zeigt, besteht die Trägerbahn 1 aus einer elastischen Schaumkunststoffbahn mit einer geschlossenen Außenhaut 4 und offenen Zellen 5, in die der Bentonit eingelagert ist, und aus einer Deckbahn 2, die auf die mit Bentonit gefüllte Schaumkunststoffbahn aufgenäht ist. Die Nähte 3 verlaufen in Längsrichtung der Dichtungsmatte und haben einen Abstand von 20 oder 30 mm. Damit die Außenhaut 4 auch größere lokale Belastungen aufnehmen kann, ist die Schaumkunststoffbahn und insbesondere die Außenhaut 4 faserverstärkt. Als Material für die Trägerbahn 1 aus elastischem Schaumkunststoff kommen insbesondere Polyethylen, Polypropylen oder Polyamid in Frage.As shown in FIG. 1, the carrier web 1 consists of an elastic foam plastic sheet with a closed outer skin 4 and open cells 5, in which the bentonite is embedded, and a cover sheet 2, which is sewn onto the filled with bentonite foam plastic sheet. The seams 3 extend in the longitudinal direction of the sealing mat and have a distance of 20 or 30 mm. So that the outer skin 4 can also absorb greater local loads, the foam plastic sheet and in particular the outer skin 4 is fiber-reinforced. As a material for the carrier web 1 of elastic foam plastic in particular polyethylene, polypropylene or polyamide in question.

Wie die Fig. 2 zeigt, kann zur Verstärkung der geschlossenen Außenhaut 4 der Schaumkunststoffbahn eine textile Armierungsbahn 6 vorgesehen sein, die zusammen mit der mit Bentonit gefüllten Schaumkunststoffbahn mit der Deckbahn 2 vernäht ist. Die Nähte 3 sind so ausgeführt, daß die geschlossene Außenhaut 4 bzw. die Armierungsbahn 6 einen Abstand von der Deckbahn 2 einhält, der etwa der Dicke der Schaumkunststoffbahn entspricht.As shown in FIG. 2, can be provided to reinforce the closed outer skin 4 of the foam plastic sheet, a textile reinforcement sheet 6, which is sewn together with the filled with bentonite foam plastic sheet with the cover sheet 2. The seams 3 are designed so that the closed outer skin 4 and the Armierungsbahn 6 maintains a distance from the cover sheet 2, which corresponds approximately to the thickness of the foam plastic sheet.

Wie die Fig. 3 zeigt, wird zur Herstellung einer Schaumkunststoffbahn mit einer geschlossenen Außenhaut 4 und offenen Zellen 5 zunächst eine doppelt so dicke Schaumkunststoffbahn 10 hergestellt, die an beiden Seiten eine geschlossene Außenhaut hat. Nach Aushärten dieser Schaumkunststoffbahn 10 wird diese längs ihrer Mittelebene 11 durchtrennt. Das Durchtrennen kann durch Schneiden, Sägen oder aber auch durch einen heißen Draht oder durch Laserstrahlen erfolgen. Die Schaumkunststoffbahnen können dann aufgewikkelt und der weiteren Bearbeitung zugeführt werden.As shown in FIG. 3, for the production of a foam plastic sheet with a closed outer skin 4 and open cells 5, a foam plastic sheet 10 twice as thick is first produced, which has a closed outer skin on both sides. After curing of this foam plastic sheet 10, this is severed along its center plane 11. The cutting can be done by cutting, sawing or even by a hot wire or laser beams. The foam plastic sheets can then be wound up and fed to further processing.

Bezugszeichenliste:

1
Trägerbahn
2
Deckbahn
3
Nähte
4
geschlossene Außenhaut
5
offene Zellen
6
textile Armierungsbahn
10
Schaumkunststoffbahn
11
Mittelebene
12
Förderband
13
Förderband
LIST OF REFERENCE NUMBERS
1
support web
2
cover sheet
3
seams
4
closed outer skin
5
open cells
6
textile reinforcement web
10
Foam plastic sheet
11
midplane
12
conveyor belt
13
conveyor belt

Claims (10)

  1. A sealing mat having a backing web (1), a top web (2) and a layer arranged therebetween of bentonite or another highly swellable clay, which is inserted in an open-pore, resilient foam layer, the top web (2) being joined to the backing web (1) by means of seams (3), characterised in that the backing web (1) is formed of a resilient foamed plastics web, which comprises an integral, continuous outer skin (4) on one side and open cells (5) on the other side into which the swellable clay is inserted, and the open side of the cells (5) is covered by the top web (2).
  2. A sealing mat according to claim 1, characterised in that in particular the continuous outer skin (4) of the foamed plastics web is fibre-reinforced.
  3. A sealing mat according to either one of claims 1 or 2, characterised in that the continuous outer skin (4) of the foamed plastics web is reinforced by a textile reinforcing web (6), which, together with the foamed plastics web filled at least partially with bentonite, is sewn to the top web (2).
  4. A sealing mat according to claim 3, characterised in that the foamed plastics web is glued to the textile reinforcing web (6) by its continuous outer skin (4).
  5. A sealing mat according to claim 3, characterised in that the foamed plastics web is foamed onto the reinforcing web (6) and is connected intimately therewith in the area of the continuous outer skin (4).
  6. A sealing mat according to any one of claims 1 to 5, characterised in that the thickness of the foamed plastics web amounts to three to ten millimetres and the size (length, width, depth) of the open cells (5) is between one and ten millimetres.
  7. A sealing mat according to any one of claims 1 to 6, characterised in that the resilient foamed plastics web consists of polyethylene, polypropylene or polyamide.
  8. A method of producing a sealing mat according to any one of claims 1 to 7, characterised in that the foamed plastics web with continuous outer skin (4) and open cells (5) is produced from a foamed plastics web (10) whose thickness amounts to twice the foamed plastics web to be produced and which has a continuous outer skin (4) on both sides and is cut through along its central plane (11).
  9. A method according to claim 8, characterised in that, to form the foamed plastics web (10), the plastics material is extruded and foamed between conveyor belts (12, 13) and is cut through along the central plane after curing of the foamed plastics material.
  10. A method according to claim 9, characterised in that textile reinforcing webs (6) are introduced between the plastics layer as it foams and the conveyor belts (12, 13), such that said reinforcing webs (6) are joined to the continuous outer skins (4) of the foamed plastics web.
EP01971949A 2000-10-06 2001-08-22 Water-impervious mat Expired - Lifetime EP1322821B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10049945A DE10049945A1 (en) 2000-10-06 2000-10-06 Sheeting
DE10049945 2000-10-06
PCT/EP2001/009685 WO2002029165A1 (en) 2000-10-06 2001-08-22 Water-impervious mat

Publications (2)

Publication Number Publication Date
EP1322821A1 EP1322821A1 (en) 2003-07-02
EP1322821B1 true EP1322821B1 (en) 2007-01-17

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EP01971949A Expired - Lifetime EP1322821B1 (en) 2000-10-06 2001-08-22 Water-impervious mat

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Country Link
EP (1) EP1322821B1 (en)
JP (1) JP2004510899A (en)
AT (1) ATE351947T1 (en)
AU (1) AU2001291788A1 (en)
BR (1) BR0114451A (en)
DE (2) DE10049945A1 (en)
ES (1) ES2278782T3 (en)
PL (1) PL209025B1 (en)
RU (1) RU2287639C2 (en)
WO (1) WO2002029165A1 (en)

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DE102007057359A1 (en) * 2007-11-27 2009-06-04 Huesker Synthetic Gmbh Sealing mat, especially for dike construction
RU2686939C2 (en) * 2013-02-14 2019-05-06 Басф Се Material and method for sealing empty spaces
CN107653916A (en) * 2017-10-30 2018-02-02 滨州学院 A kind of waterproof clay liner of super-hydrophobic self-healing

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JPH10317411A (en) * 1997-05-20 1998-12-02 Osaka Bosui Constr Co Ltd Flexible-multi-layer waterproof sheet
DE19738169A1 (en) * 1997-09-01 1999-03-11 Huesker Synthetic Gmbh & Co Sealing mat
DE19858180A1 (en) * 1998-12-17 2000-06-21 Nabento Vliesstoff Gmbh Sealing mat and method for manufacturing a sealing mat

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PL209025B1 (en) 2011-07-29
PL359664A1 (en) 2004-08-23
DE10049945A1 (en) 2002-04-11
ATE351947T1 (en) 2007-02-15
BR0114451A (en) 2004-01-06
WO2002029165A1 (en) 2002-04-11
DE50111908D1 (en) 2007-03-08
AU2001291788A1 (en) 2002-04-15
RU2287639C2 (en) 2006-11-20
EP1322821A1 (en) 2003-07-02
JP2004510899A (en) 2004-04-08
ES2278782T3 (en) 2007-08-16

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