DE2560210C2 - Sealing skin on a supporting structure, e.g. a drinking water tank made of weldable and flexible sheets - Google Patents
Sealing skin on a supporting structure, e.g. a drinking water tank made of weldable and flexible sheetsInfo
- Publication number
- DE2560210C2 DE2560210C2 DE2560210A DE2560210A DE2560210C2 DE 2560210 C2 DE2560210 C2 DE 2560210C2 DE 2560210 A DE2560210 A DE 2560210A DE 2560210 A DE2560210 A DE 2560210A DE 2560210 C2 DE2560210 C2 DE 2560210C2
- Authority
- DE
- Germany
- Prior art keywords
- cover
- supporting structure
- sealing
- drinking water
- weldable
- 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
Links
- 238000007789 sealing Methods 0.000 title claims description 26
- 239000003651 drinking water Substances 0.000 title claims description 5
- 235000020188 drinking water Nutrition 0.000 title claims description 5
- 239000010426 asphalt Substances 0.000 claims description 16
- 239000013039 cover film Substances 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 10
- 239000011324 bead Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 238000004078 waterproofing Methods 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 229920001038 ethylene copolymer Polymers 0.000 claims description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims 1
- 238000001125 extrusion Methods 0.000 claims 1
- 229920003023 plastic Polymers 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 229940117958 vinyl acetate Drugs 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 6
- 230000006735 deficit Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002318 adhesion promoter Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920005618 ethylene copolymer bitumen Polymers 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/02—Wall construction
- B65D90/04—Linings
- B65D90/046—Flexible liners, e.g. loosely positioned in the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/40—Applying molten plastics, e.g. hot melt
- B29C65/42—Applying molten plastics, e.g. hot melt between pre-assembled parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B11/00—Layered products comprising a layer of bituminous or tarry substances
- B32B11/04—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Description
Die Erfindung betrifft eine abdichtende Haut auf einer tragenden Konstruktion, z. B. einem Trinkwasserbehälter aus verschweißbaren und flexiblen Bahnen gemäß dem Oberbegriff des Anspruches 1.The invention relates to a sealing skin on a supporting structure, e.g. B. a drinking water tank of weldable and flexible webs according to the preamble of claim 1.
Mit der erfindungsgemäßen abdichtenden Haut lassen sich Konstruktionen verwahren, bei denen das Eindringen von Bitumen, gegebenenfalls auch anderer, das Grundwasser beeinträchtigender Substanzen in den Boden bzw. in das Wasser selbst vermieden werden muß. Daher eignet sich die erfindungsgemäße abdichtende Haut außer für Trinkwasserbehälter vorzugsweise auch für Mülldeponien, Deponien anderer Abfallstoffe, Talsperren u.dgl. Ein weiteres Anwendungsgebiet der Erfindung sind Behälter und Reservoire für andere Flüssigkeiten, die das in der Dichtungsbahn enthaltende Bitumen beeinträchtigen. Dazu gehören u. a. Benzin und öl. Deswegen können mit der Erfindung beispielsweise Tanktassen in Treibstofflagern verwahrt werden.With the sealing skin according to the invention, constructions can be stored in which the Penetration of bitumen, possibly also other substances that impair the groundwater, into the Ground or in the water itself must be avoided. Therefore, the sealing according to the invention is suitable Skin except for drinking water containers, preferably also for landfills, landfills of other waste materials, Dams and the like Another area of application of the invention is containers and reservoirs for others Liquids that affect the bitumen contained in the waterproofing membrane. These include Gasoline and oil. Therefore, with the invention, for example, tank cups can be stored in fuel stores.
Die Gefahr der Beeinträchtigung der oder durch die beschriebenen Substanzen besteht, weil das Bitumen in der eigentlichen Dichtungsbahn enthalten ist und durch verschiedene Ursachen übertreten kann. Die Erfindung geht aus von einer abdichtenden Haut (CH-PS 5 48 273). Hierbei wird die Überlappung der Bahn auf ihrer Innenseite mit Hilfe eines Lötkolbens und auf der Außenseite mit Warmluft plastifiziert, bevor die Dichtungsbahnen im Überlappungsbereich aufeinandergepreßt und dadurch verschweißt werden. Dadurch entsteht ein Schweißwulst aus dem Material der Dichtungsbahn. Auf den Schweißwulst und auf die an ihn anschließenden Randbereiche der Dichtungsbahnen wird schließlich der Abdeckstreifen aufgebracht, der aus einem Werkstoff besteht, welcher ebenfalls Bitumen enthält. Hierdurch soll zwischen den sich überlappenden Dichtungsbahnen eine Flüssigkeitsabdichtung geschaffen und eine höher belastbare Verschweißung erreicht werden.There is a risk of impairment of or by the substances described because the bitumen in the actual waterproofing membrane is contained and can be exceeded due to various causes. The invention is based on a sealing skin (CH-PS 5 48 273). Here, the overlap of the web on their Inside with the help of a soldering iron and on the outside with hot air plasticized before the Sealing sheets are pressed together in the overlap area and thus welded. Through this a weld bead is created from the material of the sealing membrane. On the weld bead and on the the adjacent edge areas of the sealing sheeting are finally applied with the cover strip, which is made up of consists of a material which also contains bitumen. This should be between the overlapping Sealing sheets created a liquid seal and achieved a more resilient weld will.
Bei solchen Abdeckungen besteht allerdings die Gefahr der Beeinträchtigung entweder der Dichtungsbahnen durch die eingangs erwähnten, auf das in den Dichtungsbahnen enthaltene Bitumen einwirkenden Flüssigkeiten bzw. von Flüssigkeiten, in die das in der Dichtungsbahn enthaltene Bitumen übertreten kann.With such covers, however, there is a risk of impairment of either the sealing sheets by the aforementioned, on the in the Sealing membranes contained bitumen acting liquids or liquids in which the in the Bitumen contained in the waterproofing membrane can pass.
Der Erfindung liegt die Aufgabe zugrunde, die als bekannt vorausgesetzte Abdeckung so auszubilden, daß sie bei hinreichender mechanischer Festigkeit gegen den Übertritt von Bitumen aus den Dichtungsbahnen genügend gesichert istThe invention is based on the object of designing the cover assumed to be known in such a way that they with sufficient mechanical strength against the transfer of bitumen from the sealing sheeting is sufficiently secured
Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Hauptanspruches gelöstThis object is achieved according to the invention with the features of the main claim
Da die Abdeckfolie selbst frei von Bitumen ist kann sie zur Herauslösung von Bitumen oder zum Übertritt von Bitumen keine Veranlassung geben. Sie läßt sich auch mit ausreichender Stärke ausbilden, so daß Perforationen der Abdeckfolie nicht eintreten und deswegen auch aus der darunterliegenden Dichtungsbahn kein Bitumen austreten oder übertreten kann. Da im Überlappungsbereich die Dichtungsbahnen unmittelbar aufeinanderliegen, bilden sie auch den Schweißwulst aus, der Bitumen enthält. Da aber der Abdeckstreifen aus dem Werkstoff der Abdeckfolie besteht verwahrt er den Schweißwulst gegen Austreten oder Übertreten von Bitumen. Er hat außerdem die Wirkung, daß er die Schweißnaht zusätzlich absichert, weil er die Abdeckfolie über den Schweißwulst hinweg fortsetzt, so daß auch die Schweißnaht ebenso wie die Dichtungsbahn gegen mechanische Beeinträchtigungen gesichert ist.Since the cover film itself is free of bitumen, it can be used to dissolve bitumen or to cross over of bitumen do not give cause. You can train with sufficient strength so that Perforations in the cover film do not occur and therefore also from the sealing membrane underneath no bitumen can escape or trespass. Since in the overlapping area the sealing sheets are directly lie on top of one another, they also form the weld bead, which contains bitumen. But there the cover strip It is made from the material of the cover film and protects the weld bead from escaping or trespassing of bitumen. It also has the effect of additionally securing the weld seam because it is the cover film continues over the weld bead, so that the weld seam as well as the sealing membrane against mechanical impairment is secured.
Gemäß einer zweckmäßigen Ausführungsform der Erfindung, die im Unteranspruch wiedergegeben ist, kann man den Abdeckstreifen für die geschilderten Funktionen mit einer ausreichenden Breite und Wandstärke versehen.According to an advantageous embodiment of the invention, which is reproduced in the dependent claim, you can use the cover strip for the functions described with a sufficient width and Wall thickness provided.
Zum besseren Verständnis wird die Erfindung im folgenden anhand eines Ausführungsbeispieles näher beschrieben, das in der Zeichnung wiedergegeben ist.For a better understanding, the invention is explained in more detail below with the aid of an exemplary embodiment described, which is reproduced in the drawing.
Die Zeichnung zeigt im Schnitt eine abdichtende Haut gemäß der Erfindung unter Wiedergabe der sich überlappenden Ränder und ihrer Verschweißung.The drawing shows in section a sealing skin according to the invention with reproduction of the self overlapping edges and their welding.
Die bei 1 wiedergegebene Unterkonstruktion kann beispielsweise die Wand eines Behälters oder Reservoirs sein, deren Innenfläche 2 der Flüssigkeitsfüllung zugekehrt ist. Sie trägt eine abdichtende Haut 3.The substructure shown at 1 can, for example, be the wall of a container or reservoir be whose inner surface 2 faces the liquid filling. She wears a sealing skin 3.
Diese abdichtende Haut besteht ihrerseits aus mehreren Dichtungsbahnen 4, 5 auf der Basis von Äthylencopolymerisat und Bitumen. Auf der der Flüssigkeitsfüllung zugekehrten Seite 6 tragen die Dichtungsbahnen eine Abdeckfolie 7 auf der Basis von Polyäthylen, Polyamid oder einem anderen, mit Trinkwasser, Benzin, öl o. dgl. verträglichen thermoplastischen Werkstoff. Zwischen der Abdeckfolie 7 und den Dichtungsbahnen 4, 5 ist eine Zwischenschicht 8, 9 aus Äthylen-Vinyl-Acetat-Copolymer angeordnet, die als Beschichtungshilfe und als Haftvermittler für die Abdeckfolie 7 wirkt.This sealing skin in turn consists of several sealing sheets 4, 5 on the basis of Ethylene copolymer and bitumen. On the side 6 facing the liquid filling, the wear Sealing sheets a cover film 7 based on polyethylene, polyamide or another, with Drinking water, gasoline, oil or the like. Compatible thermoplastic material. Between the cover film 7 and the Sealing sheets 4, 5, an intermediate layer 8, 9 made of ethylene-vinyl-acetate copolymer is arranged, which as Coating aid and acts as an adhesion promoter for the cover film 7.
Beide Dichtungsbahnen haben an den einander zugekehrten Längsseiten 11,12 eine Überlappung 13. In der Überlappung 13 befindet sich an der Dichtungsbahn 4 ein Randstreifen 14, der frei von einer Beschichtung ist. Ihm fehlt sowohl die Haftvermittlerschicht 8 wie auch die Abdeckfolie 7. Dadurch liegen in der Überlappung Äthylencopolymerisat-Bitumen-Schichten aufeinander, die heißluftverschweißt werden können. Dabei bildet sich ein Schweißwulst 15 aus. Auf derBoth sealing sheets have an overlap 13. In on the longitudinal sides 11, 12 facing one another the overlap 13 is on the sealing membrane 4 an edge strip 14 which is free of a coating is. It lacks both the adhesion promoter layer 8 and the cover film 7. As a result, they are in the Overlapping ethylene copolymer-bitumen layers on top of one another, which can be hot-air welded. A weld bead 15 is thereby formed. On the
Abdeckfolie 7 befindet sich ein Abdeckstreifen 16, der den Schweißwulst 15 überdeckt Dieser Streifen ist ungefähr 1 —2 cm breit und 2—5 mm stark. Er wird mit Hilfe eines tragbaren Extruders aufgebracht und unter Zuhilfenahme von Heißluft befestigtCover film 7 is a cover strip 16 which covers the welding bead 15. This strip is about 1–2 cm wide and 2–5 mm thick. It is applied and under with the help of a portable extruder Attached with the aid of hot air
Wie ersichtlich, ergibt sich dadurch eine fortlautenae Abdeckung aus der Abdeckfolie 7. so daß jeglicher Übertritt von Bitumen auf der. Dichtungsbahnen 4, 5 ausgeschlossen istAs can be seen, this results in a continuous cover from the cover film 7 so that any Transfer of bitumen on the. Sealing membranes 4, 5 is excluded
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2560210A DE2560210C2 (en) | 1975-12-10 | 1975-12-10 | Sealing skin on a supporting structure, e.g. a drinking water tank made of weldable and flexible sheets |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2560210A DE2560210C2 (en) | 1975-12-10 | 1975-12-10 | Sealing skin on a supporting structure, e.g. a drinking water tank made of weldable and flexible sheets |
| DE2555445A DE2555445C3 (en) | 1975-12-10 | 1975-12-10 | Weldable and flexible membrane, consisting of a sealing membrane made of an ethylene copolymer and bitumen and a polyethylene or polyamide film connected to the sealing membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2560210C2 true DE2560210C2 (en) | 1982-11-04 |
Family
ID=25769720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2560210A Expired DE2560210C2 (en) | 1975-12-10 | 1975-12-10 | Sealing skin on a supporting structure, e.g. a drinking water tank made of weldable and flexible sheets |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2560210C2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH548273A (en) * | 1969-02-06 | 1974-04-30 | Gonon Eugen | Welding two overlapping plastic films - using hot air and roller pressure welding, and covering seam with deposited plastic |
-
1975
- 1975-12-10 DE DE2560210A patent/DE2560210C2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH548273A (en) * | 1969-02-06 | 1974-04-30 | Gonon Eugen | Welding two overlapping plastic films - using hot air and roller pressure welding, and covering seam with deposited plastic |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OI | Miscellaneous see part 1 | ||
| OI | Miscellaneous see part 1 | ||
| OD | Request for examination | ||
| OI | Miscellaneous see part 1 | ||
| AC | Divided out of |
Ref country code: DE Ref document number: 2555445 Format of ref document f/p: P |
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| D2 | Grant after examination | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: NIEDERBERG-CHEMIE GMBH, 4133 NEUKIRCHEN-VLUYN, DE |
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| 8339 | Ceased/non-payment of the annual fee |