CH688943A5 - Plastics pipe for laying in ground - Google Patents
Plastics pipe for laying in ground Download PDFInfo
- Publication number
- CH688943A5 CH688943A5 CH01404/95A CH140495A CH688943A5 CH 688943 A5 CH688943 A5 CH 688943A5 CH 01404/95 A CH01404/95 A CH 01404/95A CH 140495 A CH140495 A CH 140495A CH 688943 A5 CH688943 A5 CH 688943A5
- Authority
- CH
- Switzerland
- Prior art keywords
- casing
- cladding
- plastic
- pipe
- plastic pipe
- Prior art date
Links
- 239000004033 plastic Substances 0.000 title claims description 19
- 229920003023 plastic Polymers 0.000 title claims description 19
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000004568 cement Substances 0.000 claims abstract description 10
- 239000004576 sand Substances 0.000 claims abstract description 3
- 230000002787 reinforcement Effects 0.000 claims abstract 3
- 239000000203 mixture Substances 0.000 claims abstract 2
- 239000000835 fiber Substances 0.000 claims description 8
- 239000011152 fibreglass Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 238000005507 spraying Methods 0.000 abstract description 2
- 238000005253 cladding Methods 0.000 abstract 6
- 229920002430 Fibre-reinforced plastic Polymers 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000011518 fibre cement Substances 0.000 abstract 1
- 239000011151 fibre-reinforced plastic Substances 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- B32B1/00—Layered products having a non-planar shape
- B32B1/08—Tubular products
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
- F16L9/121—Rigid pipes of plastics with or without reinforcement with three layers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
- F16L9/133—Rigid pipes of plastics with or without reinforcement the walls consisting of two layers
-
- 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
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/08—Reinforcements
-
- 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
- B32B2597/00—Tubular articles, e.g. hoses, pipes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The pipe (1) is formed of glass fibre-reinforced plastics and has a peripheral cladding (3) of fibre cement. The coating is formed of a mixture of hydraulically binding material, e.g. cement, fibres, or possibly sand, and of aggregates. The cladding may comprise a flexible reinforcement web or a fleece-type mat. The pipe additionally has an inner cladding (2). The outer cladding may be formed by spraying the cladding material onto the pipe. Alternatively, the fleece-type mat may be saturated with the material for forming the cladding and the whole wound onto the core pipe.
Description
Die vorliegende Erfindung betrifft ein in der Erde zu verlegendes Kunststoffrohr, insbesondere ein Rohr aus glasfaserverstärktem Kunststoff.
Derartige Kunststoffrohre werden heute sowohl als Druckrohre wie auch als drucklose Rohre für verschiedenste Anwendungen (Trinkwasserversorgung, Abwasserrohre und ggf. als Rohre zur Durchführung von Kabeln) in der Erde verlegt.
Der Vorteil dieser Kunststoffrohre gegenüber den verwendeten Gussrohren liegt neben dem Handling (Gewicht) in der hohen Lebensdauer, da Korrosionsprobleme praktisch nicht auftreten. Die Gussrohre müssen sowohl mit einer korrosionsschützenden Innenauskleidung (z.B. Zementinnenauskleidung) wie auch einer Ummantelung, ebenfalls als Korrosionsschutz, versehen werden, was schliesslich zu sehr kostspieligen Produkten führt.
Mit dem Einsatz von Kunststoffrohren kann diesen Problemen wirksam begegnet werden. Allerdings müssen für gewisse Anwendungsgebiete aus Festigkeitsgründen unrationell hohe Wandstärken gewählt werden (z.B. bei Rohren aus Polyäthylen), was zumindest den Kostenvorteil in Frage stellt.
Ein generelles Problem bei allen Rohren ist die Einbettung ins Erdreich. Sowohl statische Überlegungen wie auch Schutzvorkehrungen führen in den meisten Einbaufällen dazu, dass ein spezielles Kiesbett erforderlich ist.
Aufgabe der vorliegenden Erfindung war die Schaffung eines in der Erde zu verlegenden Kunststoffrohres, welches ohne besondere Massnahmen einfach verlegt werden kann.
Eine überraschende Lösung hat sich erfindungsgemäss dadurch ergeben, dass das Kunststoffrohr mit einer Ummantelung aus Faserzement versehen wird.
Der vorzugsweise Aufbau der Ummantelung ist in den abhängigen Ansprüchen definiert.
Ebenfalls Gegenstand der Erfindung ist ein Verfahren zur Herstellung des erfindungsgemässen Kunststoffrohres, bei welchem die Ummantelung entweder durch Aufspritzen des ihrer Bildung dienenden Materials auf das Kernrohr oder durch Aufwickeln einer mit dem Material getränkten Matte auf das Kernrohr gebildet wird.
Die Ummantelung, welche hier nicht mehr dem Korrosionsschutz dient und auf welche man durch Verwendung des Kunststoffes verzichten kann, bringt hier überraschenderweise einen kostengünstigen Transport- und Einbauschutz gegen alle äusseren mechanischen Einflüsse. Dass damit auch gleichzeitig die Biegesteifigkeit und das Gewicht vorteilhaft erhöht werden, sei nur nebenbei bemerkt.
Weiter hat sich gezeigt, dass die Ummantelung im Bereich der Rohrenden nach einem Schnitt zwecks Anbringung von Verbindungsmuffen problemlos entfernt werden kann und damit auch die besten Bedingungen beim Verlegen geschaffen sind. Der Hauptvorteil liegt jedoch darin, dass erfindungsgemäss ausgestaltete Kunststoffrohre ohne Einbringen eines aufwendigen Kiesbettes verlegt werden können und dabei ein optimaler Einbauschutz bei Verwendung des Aushubmaterials ohne zusätzliche Massnahmen gewährleistet ist.
Die einzige Zeichnung zeigt ein erfindungsgemäss ausgestaltetes Kunststoffrohr.
Das Kernrohr 1, welches mit einer vom Anwendungszweck abhängigen Innenauskleidung 2 versehen sein kann, besteht aus glasfaserverstärktem Kunststoff (GFK). Auf dieses Kernrohr 1 ist eine Ummantelung 3 aus Faserzement aufgebracht, entweder in Form von aufgespritztem Mörtel oder durch Umwickeln mit einer mit dem Faserzement getränkten Matte.
Das Material der Ummantelung besteht neben dem hydraulisch abbindbaren Stoff (Zement) und bei Faserzement üblichen Fasern ggf. aus Sand sowie Zuschlagstoffen und Zusätzen, welche bei Faserzement zur Anwendung gelangen.
The present invention relates to a plastic pipe to be laid in the ground, in particular a pipe made of glass fiber reinforced plastic.
Such plastic pipes are now laid both as pressure pipes and as unpressurized pipes for a wide variety of applications (drinking water supply, sewage pipes and possibly as pipes for the passage of cables) in the ground.
In addition to handling (weight), the advantage of these plastic pipes compared to the cast pipes used is their long service life, since there are practically no corrosion problems. The cast iron pipes must be provided with an anti-corrosion inner lining (e.g. cement inner lining) as well as a jacket, also as corrosion protection, which ultimately leads to very expensive products.
These problems can be effectively countered with the use of plastic pipes. However, for reasons of strength, inefficiently high wall thicknesses have to be selected for certain areas of application (e.g. for pipes made of polyethylene), which at least questions the cost advantage.
A general problem with all pipes is embedding in the ground. Both static considerations and protective measures mean that a special gravel bed is required in most installation cases.
The object of the present invention was to create a plastic pipe to be laid in the ground, which can be easily laid without special measures.
According to the invention, a surprising solution has resulted from the fact that the plastic tube is provided with a covering made of fiber cement.
The preferred structure of the casing is defined in the dependent claims.
The invention also relates to a method for producing the plastic tube according to the invention, in which the jacket is formed either by spraying the material used for its formation onto the core tube or by winding a mat impregnated with the material onto the core tube.
The casing, which is no longer used for corrosion protection and which can be dispensed with by using the plastic, surprisingly provides inexpensive transport and installation protection against all external mechanical influences. It should be noted that the bending stiffness and the weight are advantageously increased at the same time.
It has also been shown that the sheathing in the area of the pipe ends can be removed without problems after a cut for the purpose of attaching connecting sleeves and thus the best conditions for laying are also created. The main advantage, however, lies in the fact that plastic pipes designed according to the invention can be installed without the introduction of an expensive gravel bed, and optimal installation protection when using the excavated material is guaranteed without additional measures.
The only drawing shows a plastic tube designed according to the invention.
The core tube 1, which can be provided with an inner lining 2 which is dependent on the application, consists of glass fiber reinforced plastic (GRP). A jacket 3 made of fiber cement is applied to this core tube 1, either in the form of sprayed-on mortar or by wrapping it with a mat impregnated with the fiber cement.
In addition to the hydraulically settable material (cement) and fibers customary in fiber cement, the material of the casing may consist of sand as well as additives and additives which are used in fiber cement.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH01404/95A CH688943A5 (en) | 1995-05-15 | 1995-05-15 | Plastics pipe for laying in ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH01404/95A CH688943A5 (en) | 1995-05-15 | 1995-05-15 | Plastics pipe for laying in ground |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH688943A5 true CH688943A5 (en) | 1998-06-15 |
Family
ID=4209649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH01404/95A CH688943A5 (en) | 1995-05-15 | 1995-05-15 | Plastics pipe for laying in ground |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH688943A5 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008014848A2 (en) * | 2006-06-20 | 2008-02-07 | Eckhard Meyer-Rieke | Ground probe in the form of a double pipe system for utilizing the earth's heat for the operation of heat pumps |
| DE102009011585A1 (en) * | 2009-03-06 | 2010-09-09 | Frank, Egon, Dr. | Component and method for its production |
| RU2738533C2 (en) * | 2015-04-16 | 2020-12-14 | Штойлер Коррозионсшутц Холдинг Гмбх | Fiber-reinforced hollow body for medium sewage, particularly chemically and/or mechanically aggressive media |
-
1995
- 1995-05-15 CH CH01404/95A patent/CH688943A5/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008014848A2 (en) * | 2006-06-20 | 2008-02-07 | Eckhard Meyer-Rieke | Ground probe in the form of a double pipe system for utilizing the earth's heat for the operation of heat pumps |
| WO2008014848A3 (en) * | 2006-06-20 | 2008-04-10 | Eckhard Meyer-Rieke | Ground probe in the form of a double pipe system for utilizing the earth's heat for the operation of heat pumps |
| DE102009011585A1 (en) * | 2009-03-06 | 2010-09-09 | Frank, Egon, Dr. | Component and method for its production |
| WO2010099886A1 (en) | 2009-03-06 | 2010-09-10 | Egon Frank | Component and method for the production thereof |
| RU2738533C2 (en) * | 2015-04-16 | 2020-12-14 | Штойлер Коррозионсшутц Холдинг Гмбх | Fiber-reinforced hollow body for medium sewage, particularly chemically and/or mechanically aggressive media |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NV | New agent |
Representative=s name: TROESCH SCHEIDEGGER WERNER AG |
|
| PL | Patent ceased |