EP0945555A1 - Revêtement d'étanchéité - Google Patents

Revêtement d'étanchéité Download PDF

Info

Publication number
EP0945555A1
EP0945555A1 EP99105315A EP99105315A EP0945555A1 EP 0945555 A1 EP0945555 A1 EP 0945555A1 EP 99105315 A EP99105315 A EP 99105315A EP 99105315 A EP99105315 A EP 99105315A EP 0945555 A1 EP0945555 A1 EP 0945555A1
Authority
EP
European Patent Office
Prior art keywords
layer
water
sealing mat
soluble
sealing
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.)
Granted
Application number
EP99105315A
Other languages
German (de)
English (en)
Other versions
EP0945555B1 (fr
Inventor
Jürgen Kassner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huesker Synthetic GmbH and Co
Original Assignee
Huesker Synthetic GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huesker Synthetic GmbH and Co filed Critical Huesker Synthetic GmbH and Co
Publication of EP0945555A1 publication Critical patent/EP0945555A1/fr
Application granted granted Critical
Publication of EP0945555B1 publication Critical patent/EP0945555B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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 sealing mat with two preferably synthetic textile fibers existing layers, namely a top layer and a carrier layer, and an intermediate layer arranged between them, which essentially consists of swellable clay such as bentonite, the top layer and carrier layer being connected to one another.
  • sealing mats are known for example from the DE 37 04 503.
  • a sealing mat is described, which in practice a top layer and a carrier layer made of a mechanically consolidated Has spunbonded nonwoven, both layers being needled together.
  • the bentonite powder is in through the drawn fiber bundle the intermediate layer fixed so that movement of the bentonite powder within the intermediate layer when rolling up or laying the Sealing mat is prevented.
  • the nonwovens consist of non-rotting Plastic fibers, preferably polyolefin fibers, which the Bentonite powder, preferably an activated sodium bentonite, permanently includes.
  • a significant increase in the possible shear force transmission and Swelling back pressure through stronger connection of the top layer with the Backing layer can be achieved by sewing these two layers together.
  • Such a sealing mat is described in EP 0 536 475 B1.
  • non-woven fabrics are preferred for forming the cover layer and Carrier layer used.
  • the top layer and backing layer are covered by a Large number of parallel seams that are approximately 25 mm apart have, connected to each other. Alternatively, can be easily Sew another material (knitted or woven) to form the Cover layer and / or carrier layer can be used.
  • the fixation of the powder or granular bentonite between the top layer and the base layer takes place in this embodiment of the sealing mat by the novel use of a cotton fleece (Aerovlies), which is very coarse-pored and in which the bentonite powder is sprinkled.
  • the aero fleece will sewn to the two outer layers so that its location between these two layers is fixed and also that which is held in the nonwoven Bentonite powder is permanently integrated.
  • the sealing bentonite layers are by two superimposed, moisture-permeable textile layers from each other Cut. In order to allow liquid to pass through these textile layers to reduce a plane running parallel to the bentonite layers, is used when laying the sealing mats to seal a basic structure (Landfill, pond, etc.) Bentonite powder on a border of the sprinkled sealing mat below. The verge of the adjacent Sealing mat is placed on this sprinkled bentonite powder. The effectiveness of the sealing is very strong with this laying technique the care in sprinkling the bentonite powder and laying the Mats dependent.
  • the object of the invention is to provide a sealing mat, which when Laying in adjacent layers with overlapping edge areas guarantees increased edge sealing with little effort.
  • At least one side edge strips of the cover layer and / or the carrier layer contains a high proportion of water-soluble fibers.
  • the edge strip becomes one of the features of the invention textile outer layers water-soluble and dissolves after installation in the Soil and dampening through precipitation, groundwater or similar largely on. This releases the integrated bentonite layer and comes into contact with the surface of the adjacent sealing mat. The result is at least the same as when sprinkling one Bentonite strips on the edge strips of the upper textile layer Sealing mat, which from the edge strip of the adjacent sealing mat is covered.
  • the edge strips are preferably those to be laid next to one another Sealing mats formed so water-soluble that the superimposed Textile layers of both sealing mats water-soluble in the edge area are trained.
  • this can be achieved in that a Edge strips of the top layer and the one on the opposite edge Edge strips of the textile backing are water-soluble.
  • the textile mats lying next to each other are laid in such a way that the edge strip of the textile mat with the water-soluble top layer lies below and the edge strip of the textile mat with the water-soluble Carrier layer is on top.
  • the edge strip forming water-soluble cover layer section is then the water-soluble forming the lower surface of the top edge strip Carrier layer section.
  • the overlap area now consists of one double bentonite layer without interfering intermediate layer and thus has one higher tightness than the base mat.
  • reversible sealing mats can be used. at which the top layer and carrier layer have similar properties.
  • the top layer and carrier layer have similar properties.
  • the water solubility of the edge strips of the textile layers is preferred through the use of water-soluble synthetic fibers made from polyvinyl alcohol achieved.
  • Polyvinyl alcohol also called PVA or PVAL, is a plastic that is easy in water to form a viscous solution is soluble.
  • the proportion of water-soluble fibers in the edge strips is preferably at least 40%. When this fiber fraction is dissolved, Edge strips only unbound single fibers that prevent the not significantly obstruct the bentonite layer covered by the textile layer. With a width of the sealing mat of at least 3 m, preferably 4 to 6 m, the width of the edge strip is between 5 and 20 cm, preferably 8 to 15 cm. The thickness of the two nonwoven layers and the thickness the bentonite intermediate layer lies with the previously known sealing mats between 2 and 5 mm.
  • the recognizable sealing mat in FIGS. 1 and 2 can have a structure according to the descriptions of the publications cited in the prior art DE 37 04 503 C2 or EP 0 536 475 B1. It consists of a textile cover layer 1 and a textile backing layer 2, each made of a nonwoven fabric, a woven fabric or a knitted fabric. Between the two textile layers, an intermediate layer 3 is integrated, which in is essentially formed by a swellable bentonite powder. Top layer 1 and carrier layer 2 are firmly connected (e.g. sewn or needled).
  • the edge strips are 4 one of the two textile layers, namely those of the as Cover layer 1 designated layer, with a high proportion of water-soluble Fibers.
  • the water-soluble edge strips 4 are in the drawings indicated by dashed hatching.
  • FIG. 2 it can be seen how the sealing mat shown in FIG. 1 is to be relocated.
  • a first sealing mat is covered with the top layer 1 laid above, so that the water-soluble edge strips 4 of this top layer 1 face up.
  • the left and right of the first, middle sealing mat sheet adjacent sheets with overlapping Edge strips 4 laid. These sheets are laid before laying turned so that the top layer 1 faces down.
  • the finished, sealing layer consisting of several sheets of the sealing mat the water-soluble edge strips 4 of the textile cover layers are thus located in each case 1 on top of each other.
  • Such a turning of the sealing mat Of course, it is only possible to create the different paths if the textile cover layer 1 and the textile carrier layer 2 are similar Have properties so that their position in the installed state as desired can be chosen.
  • the water-soluble fiber or can be reliably placed on top of each other the water-soluble yarn can be dyed so that these edge strips visually differentiate from the non-soluble areas of the textile layers.
  • FIG. 3 shows an alternative embodiment of the sealing mat. It are a medium sealing mat and the edge areas of the two adjacent sealing mats shown. On the right edge of the middle sealing mat is the edge strip 4 of the top cover layer 1 provided with water-soluble fibers. On the left edge of the middle sealing mat is the edge strip 4 'of the underlying carrier layer 2 provided with water-soluble fibers.
  • the edge strips 4,4 ' when laying several sheets of the sealing mat next to each other placed directly on top of each other so that the edge strips in the overlap area the bottom left sealing mat and the edge strip of the right sealing mat lies above.
  • the step-like position of the sealing mats will change due to the flexible Structure and the very large width of the sealing mat compared to its thickness of course not result in practice.
  • the sealing mats will follow the underlay and next to when laying the contour the overlapping edge strips 4,4 'lie flat on the ground.
  • the overlap area be enlarged so that a short section (5 to 10 cm) of the free mat edge of each of the overlapping sealing mats on one Area of the adjacent sealing mat without water-soluble fibers lies on. 4 shows, the overlap area is then after Dissolving the water-soluble fibers through the insoluble areas overlying end sections of the mat edges largely completed and there is no risk of squeezing or squeezing the Bentonite from the overlap area.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Revetment (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Nonwoven Fabrics (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
EP99105315A 1998-03-27 1999-03-16 Revêtement d'étanchéité Expired - Lifetime EP0945555B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813611 1998-03-27
DE19813611A DE19813611A1 (de) 1998-03-27 1998-03-27 Dichtungsmatte

Publications (2)

Publication Number Publication Date
EP0945555A1 true EP0945555A1 (fr) 1999-09-29
EP0945555B1 EP0945555B1 (fr) 2004-07-21

Family

ID=7862586

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99105315A Expired - Lifetime EP0945555B1 (fr) 1998-03-27 1999-03-16 Revêtement d'étanchéité

Country Status (3)

Country Link
EP (1) EP0945555B1 (fr)
AT (1) ATE271630T1 (fr)
DE (2) DE19813611A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTV20080104A1 (it) * 2008-08-05 2010-02-06 Volteco S P A Membrana impermeabile, particolarmente per l'isolamento di costruzioni sottoposte a pressione idrostatica.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3704503A1 (de) 1987-02-13 1988-08-25 Naue Fasertechnik Wasserundurchlaessige dichtungsmatte, bestehend im wesentlichen aus einer traegerschicht, einer zwischenschicht aus quellfaehigem ton und einer deckschicht
EP0536475A1 (fr) 1991-10-08 1993-04-14 Paul Schreck Tapis d'étanchéité utilisable en génie civil pour la protection du sol contre des liquides
EP0555800A1 (fr) * 1992-02-11 1993-08-18 NAUE-FASERTECHNIK GMBH & CO. KG Membrane imperméable à l'eau et/ou à l'huile comportant une argile expansible
US5350255A (en) * 1993-01-19 1994-09-27 James Clem Corporation Geosynthetic clay liner with modified edges for improved sealing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3704503A1 (de) 1987-02-13 1988-08-25 Naue Fasertechnik Wasserundurchlaessige dichtungsmatte, bestehend im wesentlichen aus einer traegerschicht, einer zwischenschicht aus quellfaehigem ton und einer deckschicht
EP0536475A1 (fr) 1991-10-08 1993-04-14 Paul Schreck Tapis d'étanchéité utilisable en génie civil pour la protection du sol contre des liquides
EP0555800A1 (fr) * 1992-02-11 1993-08-18 NAUE-FASERTECHNIK GMBH & CO. KG Membrane imperméable à l'eau et/ou à l'huile comportant une argile expansible
US5350255A (en) * 1993-01-19 1994-09-27 James Clem Corporation Geosynthetic clay liner with modified edges for improved sealing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTV20080104A1 (it) * 2008-08-05 2010-02-06 Volteco S P A Membrana impermeabile, particolarmente per l'isolamento di costruzioni sottoposte a pressione idrostatica.
EP2151317A1 (fr) * 2008-08-05 2010-02-10 Volteco S.p.A. Membrane étanche, en particulier pour l'isolation de Bâtiments soumis à une pression hydrostatique

Also Published As

Publication number Publication date
DE19813611A1 (de) 1999-09-30
DE59909985D1 (de) 2004-08-26
ATE271630T1 (de) 2004-08-15
EP0945555B1 (fr) 2004-07-21

Similar Documents

Publication Publication Date Title
EP0536475B1 (fr) Tapis d'étanchéité utilisable en génie civil pour la protection du sol contre des liquides
DE2431871B2 (de) Verfahren und duesenplatte zur herstellung einer elastischen mattenbahn
EP1209283B1 (fr) Tissu, en particulier une toile pour machine à papier
DE4038962A1 (de) Verwendung einer schutzmatte fuer abdichtungen
EP0945555B1 (fr) Revêtement d'étanchéité
DE2648716C3 (de) Teppichzwischenlage
EP1141490B1 (fr) Mat d'etancheite et son procede de fabrication
DE202006004624U1 (de) Filzband, insbesondere Papiermaschinenfilz
WO2002054852A9 (fr) Tapis et dispositif de production d'un tapis
DE2935387A1 (de) Wasserdurchlaessiger bodenbelag
DE4130343C2 (de) Verbundvliesmaterial und Verfahren zur Herstellung eines Verbundvliesmaterials
DE19738169A1 (de) Dichtungsmatte
DE102019132849B4 (de) Sandwich-Geokunststoffbahn mit verriegelnder Vernadelung
DE4109050C2 (de) Dränmatte mit Sperrwirkung
DE3727336C2 (de) Matte mit Lufteinschlüssen zur Wärmedämmung
DE60203517T2 (de) Mehrlagige Dichtungsmatte
DE60310403T2 (de) Verfahren zur herstellung eines wasserdichtenden materials
DE8510220U1 (de) Papiermaschinenfilz
DE2838012A1 (de) Tarnnetz mit genaehtem stuetznetz
DE4222969A1 (de) Deponieabdichtung
DE102021129658A1 (de) Wasserrückhalte- und Wasserabgabevorrichtung für mit Pflanzen, Bäumen o.dgl. versehene Böden
DE19938286C2 (de) Pflanzenträgermatte für die Durchwurzelung mit Repositionspflanzen bestehend aus einer dreidimensionalen Kettengewirkestruktur
DD237369B1 (de) Waermeuebertragungselement
DE7414314U (de) Kratzenbelag für Kardenwalzen
DE6750518U (de) Schlafdecke od. dgl.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT DE FR GB IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19991130

AKX Designation fees paid

Free format text: AT DE FR GB IT

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: HUESKER SYNTHETIC GMBH

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE FR GB IT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040721

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59909985

Country of ref document: DE

Date of ref document: 20040826

Kind code of ref document: P

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20040721

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050316

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20050331

Year of fee payment: 7

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20050422

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051130

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20051130

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20060331

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061003

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070316