EP0430966A1 - Plaque de coffrage avec un panneau de coffrage en plastique et son procede de fabrication - Google Patents

Plaque de coffrage avec un panneau de coffrage en plastique et son procede de fabrication

Info

Publication number
EP0430966A1
EP0430966A1 EP89908392A EP89908392A EP0430966A1 EP 0430966 A1 EP0430966 A1 EP 0430966A1 EP 89908392 A EP89908392 A EP 89908392A EP 89908392 A EP89908392 A EP 89908392A EP 0430966 A1 EP0430966 A1 EP 0430966A1
Authority
EP
European Patent Office
Prior art keywords
formwork
formwork panel
frame
panel
plastic
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.)
Pending
Application number
EP89908392A
Other languages
German (de)
English (en)
Inventor
Werner Fehr
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0430966A1 publication Critical patent/EP0430966A1/fr
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G9/05—Forming boards or similar elements the form surface being of plastics
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G2009/023—Forming boards or similar elements with edge protection
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G2009/023—Forming boards or similar elements with edge protection
    • E04G2009/025—Forming boards or similar elements with edge protection by a flange of the board's frame

Definitions

  • the present invention relates to a formwork panel for system and large-area formwork with a formwork panel made of plastic and a method for its production.
  • Formwork panels for system and large-area formwork such as are known for example from DE-OS 36 38 537, consist of a frame made of metal and / or wood, on which formwork panels made of plywood or chipboard are mounted.
  • a major disadvantage of these known formwork panels or formwork panels is that they are damaged by abrasion and mechanical injuries from nailing, vibrating bottles, etc. The panels are exposed to the weather and otherwise come into contact with ülasser on the components. By absorbing water, these known formwork panels swell in length and thickness, which quickly renders them unusable leads, so that an exchange with a new disk is necessary.
  • Formwork panels and the speed of concreting are reduced.
  • the increase in length of the plywood formwork panels due to the water absorption also causes the frame of the formwork panel to be deformed especially at the edge, so that the connection points of several formwork panels connected to one another in system formwork have leaky points. Cement milk can escape at these leaky points, which leads to bleeding of the concrete in this area and consequently to a deterioration in the quality of the concrete.
  • the so-called Plarmor effect occurs on formwork panels with phenolic resin-coated formwork panels, i.e. the concrete parts made with such formwork panels have different marble-like colors, which is usually undesirable in exposed concrete. In addition, this leads to a deterioration in the liability of subsequent plants to such concrete parts.
  • a particular weak point in formwork panels is their edge or edge area, because on the one hand these areas are exposed to special mechanical loads and on the other hand the many end grain layers are very absorbent. Sealing the entire panels and in particular these areas with silicone or the like only extends the service life of such formwork panels only insignificantly.
  • Plastic avoided, as for example from PCT / CH / 87/00027 or the German utility model
  • composition of PVC granulate which is obtained when copper is recovered from electrical cables, varies widely.
  • plastics there are also other plastics, textiles - e.g. from
  • Binder react, does not interfere with the very different composition or the use of plastic waste of very different composition, which can also be contaminated, is possible.
  • Polyurethane CPU has proven to be particularly suitable as a foaming binder.
  • this protective cover can be made of polyurethane, which can be sprayed on, spread on, rolled up or cast.
  • the protective covering can also be in the form of a wood veneer layer, a glass flow, a plastic flow, a net, etc.
  • hollow glass beads and / or silicon and / or metal chips and / or mineral substances and / or plastics and / or the fibrous substances are added to this protective coating to increase the abrasion resistance.
  • tensile impact agents are added to the PVC granulate to improve the screen line and / or to increase the stability.
  • Such additives are finely ground tire rubber, quartz sand, light additives, such as hollow aluminum silicate.
  • light additives such as hollow aluminum silicate.
  • This reinforcement is penetrated in the embodiment according to claim 7.
  • This reinforcement can consist of a glass, plastic or metal mesh. Lattice structures made of metal or plastic or hollow profiles made of metal or plastic are also possible.
  • the reinforcement in the form of metal bars or in the form of a metal grid is not poured into the formwork panel, but is only on the side facing away from the concrete Formwork panel, i.e. mounted on the back of the formwork panel. Since a reinforcement, in particular made of metal, always represents an additional weight, the formwork panel can be used with or without reinforcement as required.
  • edge protection is provided according to claim 8. According to the advantageous further development of the inventions
  • this edge protection consists of a particularly resistant plastic which is finally cast into the surface of the formwork panel flush with it.
  • the formwork panel can be formed in the form of integral foam.
  • This embodiment has the advantage that the abrasion-resistant protective coating cannot be produced in a separate operation but during the molding of the plate by producing a highly compressed foam on the surface.
  • the edge protector can also be produced in this way at the same time as the plate is manufactured.
  • the front of the plate that is, the side of the plate that comes to rest on the concrete, is profiled in the embodiment according to claim 12, so that any structure can be given with the exposed concrete created with such formwork panels.
  • Claim 13 teaches an advantageous method for producing a formwork panel according to the invention.
  • the subclaims 14 to 16 relate to advantageous developments of this method.
  • the frame serves as the shape for the formwork panel, i.e. the formwork panel is foamed directly into the frame. This eliminates the need to fasten the formwork panel to the frame, since the formwork panel adheres excellently to the metal frame when it is not yet solidified.
  • Claim 17 is directed to a formwork panel which has the formwork panel according to the invention.
  • Claim 18 claims a formwork panel in particular with a formwork panel according to one of the preceding claims, which is characterized in that the edge side of the formwork panel is flush with the frame or protrudes slightly above the frame. This configuration ensures that the individual formwork panels lie close together when the formwork panels are assembled. Since plastic and in particular formwork panels made of plastic according to one of the preceding claims have a certain basic elasticity, a homogeneous
  • the seal between the individual formwork panels or formwork panels is further improved in that the individual formwork panels are provided with sealing lips.
  • these sealing lips also at least partially cover the frame, which leads to a further improved sealing and also prevents contamination of the covered part of the frame. This is particularly advantageous because dried concrete residues from the sealing lips made of plastic due to the
  • the advantageous further development of the formwork panel according to claim 21 takes into account the fact that the mechanical loads are greatest in the edge region of the formwork panel.
  • this configuration facilitates the assembly of the formwork panel on the frame, in particular if the formwork panel is simply glued to the frame.
  • the formwork panel completely surrounds the frame with its edge region.
  • the advantageous embodiment of the invention according to claim 23 improves the cohesion between frame and formwork panel. This configuration is particularly advantageous if the plate and frame are glued together.
  • the frame of the formwork panel according to the invention can also be provided in the usual way with struts.
  • the frame can also have breakthroughs for tension rods and reinforcements for conventional spacers.
  • the formwork panels according to the invention can of course also be used for other purposes, for example as fencing or as outdoor flooring, etc. Compost containers and the like can also be made from this plastic material.
  • the formwork panel according to the invention or a formwork panel equipped with it has the following advantages.
  • the formwork sheet is free of the usual damage such as nail holes, drill holes, vibrating bottle damage and scratches caused by the reinforcement
  • the lifespan of the plastic shuttering panels according to the invention is compared to conventional panels. considerably longer and roughly corresponds to the lifespan of the frame. This saves three to five new assignments of the formwork panel, which would each make up about 1/3 of the new price of a formwork panel.
  • the edges of the formwork panel according to the invention can be designed so that, in contrast to the formwork panels used to date, a barely visible joint impression is formed on the concrete, the concrete does not bleed out in the joint area and thus rework is avoided and exposed concrete of the highest quality is possible in the first place.
  • the formwork sheet is not absorbent and therefore requires a maximum of 1/3 of the release agent that the usual
  • Formwork panels made of wood are thus more economical and environmentally friendly. - The cleaning of the formwork panels is made considerably easier because concrete adheres poorly to the material.
  • formwork panels with special edge formation to protect the formwork panel or frame are possible in a simple manner.
  • the surface of the formwork panel can be structured and profiled in any way, for example rough-sawn wood structure.
  • the installation of the formwork panel in new or used formwork panels becomes more economical because of due to the possibility of shaping the formwork panel as desired, it can also be glued to the frame.
  • the formwork sheet according to the invention is also particularly suitable for use in large-area formwork and facing formwork, since it can be processed, nailed, screwed and glued using conventional woodworking tools.
  • the abrasion resistance of the formwork panel according to the invention is about 5 to 9 times that of conventional formwork panels.
  • the formwork panel consists of 70 - 90% recycled material, which can otherwise only be used very rarely and in insufficient quantities and whose removal is extremely problematic since it can neither be burned nor dumped safely.
  • FIG. 1 is an oblique view of part of an embodiment of the formwork panel with the protective cover partially removed
  • FIG. 2 shows a section through the representation of FIG.
  • Fig. 3 is a sectional view of a formwork panel
  • Edge protection 4 is a sectional view of a formwork panel with cavities
  • FIG. 5 is a sectional view of a formwork panel with cast reinforcement
  • FIG. 6 is a sectional view of a formwork panel with a reinforcement attached to the back of the formwork panel
  • FIG. 1 shows a part of a formwork sheet 1 according to the invention.
  • FIG. 2 shows a section through the formwork sheet 1 according to FIG. 1.
  • the formwork sheet 1 consists of PVC granulate which is obtained when copper is recovered from electrical cables. This waste PVC is in
  • Foamed in PU foam In addition to PVC granules, polystyrene or polyethylene wastes or all plastic wastes are also suitable which have the same physical or surface chemical properties as the PVC granules and may be very dirty. In addition, wood waste such as sawdust can also be poured or foamed into the PU foam. In addition to PU foam, other foamable plastics such as thermoplastics can also be used.
  • the formwork panel 1 shown in Fig. 1 and 2 is at the front and rear 3 and 5 with a reinforcement in Form of a metal mesh 7 provided. This reinforcement serves to improve the mechanical stability and can also consist of a glass or plastic fabric. Fibers or fibrous materials can also be embedded or foamed in as reinforcement.
  • a protective coating 9 is applied over the metal mesh 7.
  • the protective coating 9 consists of a particularly abrasion-resistant material, for example polyurethane, to which mineral-like or fibrous substances or metals are mixed. Even if this is not so clearly expressed in FIG. 1, the protective coating 9 completely covers the formwork panel 9, also and particularly on the edge sides 6 of the panel.
  • Fig. 3 is a sectional view of a record 1, which is provided with an edge protector 11.
  • the edge protector 11 is rectangular and covers the edge of the formwork panel 1 and, with approximately the same length, the front of the record 1.
  • the edge protector 11 is either made of a particularly resistant plastic, e.g. Polyurethane, acrylic butadiene styrene, polystyrene or metal.
  • Fig. 4 shows a section through a formwork panel 1 in which cavities 13 are provided.
  • the cavities 13 serve on the one hand to reduce weight and, on the other hand, reinforcements, for example in the form of tubes 15, can be introduced into these cavities if required.
  • Fig. 5 shows a further variant of the formwork panel 1, in which a reinforcement in the form of flat iron 17 is poured or foamed.
  • the flat iron 17 are aligned parallel to the edge sides 6 and are completely enclosed by the plastic mass of the formwork panel.
  • FIG. 6 shows a further embodiment of the formwork panel 1.
  • a reinforcement in the form of metal rods 19 is only attached to the back S of the formwork panel 1. If this type of reinforcement does not require a change in the frame of a formwork panel equipped with it, the metal bars 19 run in recesses 21 in the formwork panel 1.
  • the formwork panel has a frame 2b which is formed from a hollow profile with a rectangular cross section and rounded corners.
  • the frame 26 is preferably made of steel or aluminum. To increase the stability, the frame 26 can additionally be provided with fluer struts, not shown, in a known manner.
  • the formwork panel 1 is arranged with its rear side 5 on one of the shorter sides of the hollow profile 26 in such a way that the peripheral edge sides 6 of the formwork panel 1 are flush with one of the longer sides of the hollow profile or that the formwork panel projects slightly beyond the frame.
  • This arrangement of the formwork panel on the frame of the formwork panel ensures that the formwork panels or their formwork panels installed in a system formwork are practically closely spaced from one another.
  • the edge sides 6 of the formwork panels are provided with a thin sealing lip 24.
  • the embodiment of the formwork sheet according to FIG. & Corresponds to the embodiment of FIG. 7 with the difference that the sealing lip 24 not only covers the edge sides 6 of the formwork sheet but also completely one of the longer sides of the hollow profile 26.
  • the embodiment according to FIG. 8 enables a simplified cleaning of the formwork panel, since the largest part of the metal frame is covered by the sealing lip 24 made of plastic and dried-out concrete remains
  • the embodiment of the formwork panel according to FIG. 9 also corresponds to the embodiment according to FIG. 7 with the difference that the sealing lip 24 completely surrounds the frame 26 or the hollow profile 26. In this embodiment, concrete residues are completely prevented from being able to solidify on the metal frame 26.
  • the section through the formwork panel 1 is U-shaped. These legs or edge regions 28 of the plate 1 engage in a corresponding recess 30 in the frame 26, so that the edge sides 6 of the formwork plate 1 are flush with the frame 26 or protrude only slightly beyond the frame 26.
  • the formwork sheet 1 therefore encloses the frame 26 like a cap.
  • Fig. 11 shows a further switching off of a formwork panel with a formwork panel 1 which is U-shaped in section Leg or the extended edge regions 28 of the
  • formwork panel 1 completely covers one long side of the rectangular hollow profile 26.
  • the recess 30 into which a corresponding thickening of the edge regions 28 of the formwork panel 1 engages is provided in a long side of the hollow profile 26 in this embodiment.
  • the frame or the hollow profile 26 is completely integrated into the edge region 28 of the formwork panel 1 or the formwork panel 1 completely surrounds the hollow profile.
  • the recess 30 and the associated thickening of the formwork panel are located on the inside of the frame 26.
  • Fig. 13 is comparable to that of Fig. 11.
  • the edge region 38 and the frame 26 are penetrated by two pins 32 which have a large projecting cap 34 in the region of the edge region 28.
  • the edge area is protected from mechanical influences by the pins 32 or by the caps 34 located thereon.
  • Pins 32 are removed immediately prior to assembly into the system formwork. Conventional dowel pins can then be inserted into the remaining openings. In the case of those described with reference to FIGS. 7 to 13
  • Embodiments of the formwork panel according to the invention, formwork panel and frame are connected to one another by gluing. Alternatively or additionally
  • the formwork panels according to the invention can be produced using these methods, which, however, have to be specially modified.
  • the resin components are first produced in a mixing plant.
  • the aggregates of shredded plastic waste or recycling material are added to this mixture and mixed. This process must be adapted exactly to the belt speed of the production plant.
  • the mixture is fed into the double belt system via special feed devices and metered in such a way that a constant amount is passed between the two belts.
  • the double band can be made of perforated
  • the plate thickness is determined by the distance between the two tapes, which are sealed by side strips.
  • the reinforcement will run in continuously at the beginning of the machine and will be fixed in the tension and compression zone and foamed into the panel web.
  • release agents can either be applied continuously again, or separating media run in the form of foils, nonwovens or the like. with, which can also remain on the plate surface.
  • the wear layers on the surface of the board are applied after they have left the machine in a casting, spraying or rolling process; this can be done both on the unprocessed belt and on the finished, separated boards.
  • the mixed mass is filled into molds, primarily of aluminum, which are provided with inwardly permeable nozzles which let steam pass through. into which steam is blown.
  • the filled mold is closed and steamed in the exclave, cooled and then removed from the mold.
  • reinforcements can also be inserted, and it is also possible to use a wide variety Foam edge profiles or give structures to the board surface.
  • the wear layers can also be placed directly in the mold or subsequently applied to the finished plate.
  • the molds used can be designed to be stackable so that they can be steamed as a package.
  • the frame of the formwork panel is part of the form for the manufacture of the formwork panel.
  • the frame of the formwork panel is part of the form for the manufacture of the formwork panel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Laminated Bodies (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

Un panneau de coffrage pour systèmes de coffrage de béton se compose de PVC granulé obtenu lors de la récupération du cuivre contenu dans des câbles électriques et/ou de déchets de matières plastiques similaires à ce PVC granulé. Le PVC granulé ou les déchets plastiques sont façonnés en un corps solide avec un liant constitué de plastiques moussants. Les étapes de fabrication de ce panneau de coffrage sont: production d'un mélange de PVC granulé, de polyuréthane et, le cas échéant, d'autres additifs; le façonnage du mélange; le refroidissement de la masse façonnée. Le panneau de coffrage (1) ainsi obtenu est monté dans le cadre d'une plaque de coffrage de sorte que ses bords (6) coïncident avec le cadre ou de sorte que le panneau de coffrage s'étende légèrement au-delà du cadre (26).
EP89908392A 1988-07-29 1989-07-27 Plaque de coffrage avec un panneau de coffrage en plastique et son procede de fabrication Pending EP0430966A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3825900 1988-07-29
DE3825900A DE3825900A1 (de) 1988-07-29 1988-07-29 Schaltafel mit einer schalplatte aus kunststoff sowie verfahren zu deren herstellung

Publications (1)

Publication Number Publication Date
EP0430966A1 true EP0430966A1 (fr) 1991-06-12

Family

ID=6359899

Family Applications (2)

Application Number Title Priority Date Filing Date
EP89908392A Pending EP0430966A1 (fr) 1988-07-29 1989-07-27 Plaque de coffrage avec un panneau de coffrage en plastique et son procede de fabrication
EP89113898A Expired - Lifetime EP0353637B1 (fr) 1988-07-29 1989-07-27 Elément de coffrage avec panneau de coffrage en matière plastique et procédé pour sa réalisation

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP89113898A Expired - Lifetime EP0353637B1 (fr) 1988-07-29 1989-07-27 Elément de coffrage avec panneau de coffrage en matière plastique et procédé pour sa réalisation

Country Status (4)

Country Link
EP (2) EP0430966A1 (fr)
AT (1) ATE83525T1 (fr)
DE (2) DE3825900A1 (fr)
WO (1) WO1990001602A1 (fr)

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FR2679582B1 (fr) * 1991-07-25 1998-05-07 Husson Cie Sa Roland Peau coffrante composite.
FR2683575B1 (fr) * 1991-11-07 1994-01-21 Soframat Panneau de coffrage de dalle.
FR2683574A1 (fr) * 1991-11-07 1993-05-14 Soframat Panneau de coffrage en un materiau stratifie.
FR2715683B1 (fr) * 1994-02-01 1996-04-05 Outinord St Amand Banche métallique avec peau coffrante interchangeable.
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WO1996026819A1 (fr) * 1995-02-27 1996-09-06 Jacobsen Niels Joergen Procede de fabrication de formes pour couler des articles de beton a l'aide d'une machine a parpaings
WO1996032554A1 (fr) * 1995-04-12 1996-10-17 Providence Industries, L.L.C. Plaque de panneau de coffrage pour beton reutilisable
DE19528938C2 (de) * 1995-08-07 1999-01-14 Johann Ganz Verfahren zur Herstellung einer Formmasse
DE19607896C2 (de) * 1996-03-01 2001-02-22 Bruer Manfred Aus Kunststoffschaum, insbesondere Polystyrolschaum, bestehende Schale einer verlorenen Schalung zur Errichtung von Betonwänden
DE19612558A1 (de) * 1996-03-29 1997-10-02 Ferrozell Gmbh Formkörper aus Reststoffen sowie deren Verwendung
US5792552A (en) * 1996-04-12 1998-08-11 Providence Industries, L.L.C. Reusable concrete form panel sheeting
CA2254984C (fr) * 1996-04-12 2007-11-13 Providence Industries, L.L.C. Plaque de panneau de coffrage pour beton reutilisable
NL1003199C2 (nl) * 1996-05-24 1997-05-13 Antonius Gerardus De Hart Bekistingselement voor meermalig gebruik.
AU3341997A (en) * 1996-06-26 1998-01-14 Gerhard Dingler Structural member and process for producing a structural member
JP2002526695A (ja) * 1998-09-21 2002-08-20 デー、ウィー、インダストリアル、カンパニー、リミテッド コンクリートフォームパネル
AT411778B (de) * 2000-02-21 2004-05-25 Apsys Ges Fuer Anwendungstechn Schaltafel
ES2221801B1 (es) * 2003-06-17 2005-12-01 Ulma C Y E, S. Coop. Tablero de composite para aplicacion en encofrados de hormigon y procedimiento para la obtencion del mismo.
ES2296445B1 (es) * 2005-05-11 2009-03-01 Ulma C Y E S. Coop Tablero de encofrado con cantonera de proteccion y procedimiento de obtencion e integracion de dicha cantonera.
ES2433071T3 (es) * 2007-11-15 2013-12-09 Sonoform Ab Molde para colar hormigón y método para hacer el mismo
CN101614072B (zh) * 2008-08-15 2011-07-20 张锦 低发泡多层塑料建筑模板及制作方法
CN101892739A (zh) * 2010-07-13 2010-11-24 陈校兴 一次性建筑用模板
CN102786750A (zh) * 2012-08-02 2012-11-21 施冬 一种新型建筑塑料大梁底板的配方及其制备方法
DE102016119365A1 (de) * 2016-10-11 2018-04-12 BigRep GmbH Modulares Schalungssystem für die Herstellung von Betonelementen
CN115434505A (zh) * 2022-08-15 2022-12-06 上海模新新材料科技有限公司 轻质现浇混凝土用新型复合材料建筑模板

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Also Published As

Publication number Publication date
EP0353637B1 (fr) 1992-12-16
DE3825900A1 (de) 1990-02-01
EP0353637A1 (fr) 1990-02-07
DE58903007D1 (de) 1993-01-28
ATE83525T1 (de) 1993-01-15
WO1990001602A1 (fr) 1990-02-22

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