EP0173988B1 - Elément insérable pour coffrages de béton - Google Patents

Elément insérable pour coffrages de béton Download PDF

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Publication number
EP0173988B1
EP0173988B1 EP85110998A EP85110998A EP0173988B1 EP 0173988 B1 EP0173988 B1 EP 0173988B1 EP 85110998 A EP85110998 A EP 85110998A EP 85110998 A EP85110998 A EP 85110998A EP 0173988 B1 EP0173988 B1 EP 0173988B1
Authority
EP
European Patent Office
Prior art keywords
concrete
insert body
plastic
coating
insert
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
EP85110998A
Other languages
German (de)
English (en)
Other versions
EP0173988A2 (fr
EP0173988A3 (en
Inventor
Walter Hoff
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
Priority to AT85110998T priority Critical patent/ATE70585T1/de
Publication of EP0173988A2 publication Critical patent/EP0173988A2/fr
Publication of EP0173988A3 publication Critical patent/EP0173988A3/de
Application granted granted Critical
Publication of EP0173988B1 publication Critical patent/EP0173988B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/20—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires

Definitions

  • the invention relates to an insert body to be arranged in concrete formwork and to be concreted in, consisting of plastic, such as, in particular, spacers for reinforcements, spacer element, struts, pipe, cover strip, fastening part and the like, which connects the connection between it at least on part of its surface and the surrounding concrete-promoting, plastic-containing coating is provided, which forms a connection for the concrete.
  • plastic such as, in particular, spacers for reinforcements, spacer element, struts, pipe, cover strip, fastening part and the like, which connects the connection between it at least on part of its surface and the surrounding concrete-promoting, plastic-containing coating is provided, which forms a connection for the concrete.
  • spacers for reinforcements be it for vertical reinforcements, mats and the like.
  • the spacers can have different shapes, which often depend on the location of the attachment or the respective purpose.
  • Elongated spacers are particularly advantageous, particularly in the form of strip-like hollow profiles which are open at the bottom, as can be seen, for example, from DE-U-77 30 442 and DE-U-82 24 733.
  • spacers there are numerous other bodies that are installed in a formwork before concreting, for example spacer bars for aligning and attaching formwork parts, spacing brackets for similar Purposes, tubular elements used in connection with tensioning devices for concrete formwork and other elements used in the construction and cohesion of formwork parts.
  • insert bodies are made of plastic.
  • One problem here is that the best possible connection between the insert body in question and the concrete to be cast is achieved. Difficulties can arise especially with smooth plastic parts.
  • plastic wall thickness is known from DE-A-1 646 509, the outside of which is coated with a mixture of cement, plastic dispersion and possibly asbestos or other fillers or is coated with a mixture of epoxy adhesive and cement and other fillers. So it is always a mixture that contains cement and fillers.
  • the proposed plastic dispersions act as adhesives to adhere the coating to the wall thickness.
  • the object of the invention is to provide an insert body of the type mentioned, in which the liability conditions between it and the concrete are improved and which particularly meets the requirements for a good connection between it and the concrete. A high level of tightness is also considered.
  • the invention is basically directed to all insert bodies in which such a connection is important. Such parts are mentioned above in an incomplete list. Related to all of these other problems that the Invention concerns arise from the respective explanation of the solution shown.
  • a polyurethane plastic is provided for the coating of the insert body, which is connected to the material of the insert body on its surface by chemical action and has good binding properties for the concrete.
  • a two-component system can also be used for the coating.
  • the coating can contain an additional material that is not plastic, but in turn also contributes to the intensive connection with the concrete.
  • a material that is related to the concrete or its components is particularly suitable.
  • the plastic can be applied by brushing, spraying or by dipping.
  • at least part of the coating is applied continuously to the insert body (s).
  • the insert body K shown in FIG. 1 is a spacer 1 in the form of a strip-like profile part with a web 1a and two legs 1b extending at a right angle therefrom.
  • This profile body consists of plastic, in particular PVC or another plastic commonly used for such parts, and is advantageously produced by extrusion. Reinforcement is placed on the web 1a when in use. Openings 2 and 3 are provided both in the web 1a and in the legs 1b, through which concrete can pass during concreting.
  • the spacer 1 After extrusion, the spacer 1 has been provided with a coating, designated overall by the number 4, both on the outside and on the inside.
  • a coating designated overall by the number 4, both on the outside and on the inside.
  • One embodiment is shown in detail in FIG. 2.
  • the embodiment according to FIG. 3 differs from that according to FIG. 2 in that the plastic layer 7 also contains an additional material 16, in particular in the form of individual solid particles, in particular made of sand and / or cement.
  • FIG. 4 shows an insert body K in the form of a wheel-shaped spacer 12 with a central passage for a vertical reinforcing bar S.
  • a spacer 13 for horizontal reinforcement which can be placed either with one end or with the other end on the formwork and thereby results in different spacing heights for the reinforcement, is shown in FIG. 5.
  • 6 shows a tubular spacer 14 with cones placed at the ends, as used in connection with a tensioning device for concrete formwork.
  • FIG. 7 shows an insert body K in the form of a bridging and cover strip 15 to be set in concrete for formwork joints, spaces and the like.
  • FIG. 8 in the case of a ceiling formwork D, which adjoins an already cast concrete wall H, the covering of a joint or a gap F by such a strip 15 made of plastic is illustrated, specifically before the ceiling is concreted.
  • coatings of the type explained above can be present according to the invention, be it on the entire surface or only on a part thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Joining Of Building Structures In Genera (AREA)

Claims (2)

  1. Pièce noyée (K) en matière plastique, destinée à être disposée dans des coffrages à béton et devant être noyée dans le béton, telle que par exemple entretoise (12, 13) pour armatures, élément de maintien de distance (14), écarteur, tube, baguette de recouvrement (15), pièce de fixation et analogue, qui, sur au moins une partie de sa surface, est pourvue d'un revêtement (4 ; 9 ; 10) qui contient de la matière plastique et assure la liaison entre la pièce noyée et le béton l'entourant, servant ainsi d'attache pour le béton, caractérisée en ce qu'il est prévu pour le revêtement une matière plastique à base de polyuréthane (7 ; 9) qui est liée à la matière de la pièce noyée (K), sur la surface de cette dernière, par action chimique et qui possède de bonnes propriétés de solidarisation avec le béton.
  2. Pièce noyée suivant la revendication 1, caractérisée en ce que le revêtement est un système à deux composants.
EP85110998A 1984-09-03 1985-08-31 Elément insérable pour coffrages de béton Expired - Lifetime EP0173988B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85110998T ATE70585T1 (de) 1984-09-03 1985-08-31 Einsatzkoerper fuer betonschalungen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3432346 1984-09-03
DE19843432346 DE3432346A1 (de) 1984-09-03 1984-09-03 Einsatzkoerper fuer betonschalungen und verfahren zu seiner herstellung

Publications (3)

Publication Number Publication Date
EP0173988A2 EP0173988A2 (fr) 1986-03-12
EP0173988A3 EP0173988A3 (en) 1987-09-02
EP0173988B1 true EP0173988B1 (fr) 1991-12-18

Family

ID=6244534

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85110998A Expired - Lifetime EP0173988B1 (fr) 1984-09-03 1985-08-31 Elément insérable pour coffrages de béton

Country Status (3)

Country Link
EP (1) EP0173988B1 (fr)
AT (1) ATE70585T1 (fr)
DE (2) DE3432346A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH667486A5 (en) * 1985-09-17 1988-10-14 Sager Ag Reinforcing rod support for concrete construction - is H-shaped plastics strip with concave top recesses for rods and larger alternate bottom recesses
DE8607577U1 (de) * 1986-03-19 1986-05-07 Max Frank GmbH & Co KG, 8448 Leiblfing Abstandshalter
DE3624447A1 (de) * 1986-07-19 1988-01-21 Betomax Kunststoff Metall In beton einzubringender einsatzkoerper
GB2215355A (en) * 1988-02-25 1989-09-20 M C M Spacer wheel for steel cages
CH680299A5 (fr) * 1988-05-09 1992-07-31 Construmat Ag
DE8903646U1 (de) * 1988-05-19 1989-06-01 Construmat Ag, Hegnau-Volketswil Betonabstandhalter
DE8902698U1 (de) * 1988-08-29 1989-06-08 Construmat Ag, Hegnau-Volketswil Betonabstandhalter
DE3935655C1 (en) * 1989-10-26 1990-11-15 Hans Werner 5883 Kierspe De Rothstein Corrosion-resistant coating for resin spacers and tops - formed by dipping in liq. thermoplastic copolymer then rubber powder before embedding in concrete
DE4120215C2 (de) * 1991-06-19 1996-04-11 Siegfried Dreizler Verfahren zum Herstellen eines Abstandhalters für Bewehrungen und Abstandhalter
DE102015001222A1 (de) 2014-02-07 2015-08-13 Alois Kappelsberger Abstandshalter für eine Bewehrung im Stahlbetonbau
BE1027285B1 (nl) * 2019-09-23 2020-12-09 Intersig Nv Afstandhouder en gerelateerde werkwijzen
EP3795769A1 (fr) * 2019-09-23 2021-03-24 Intersig NV Espaceur et procédés relatifs

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111569A (en) * 1958-06-20 1963-11-19 Rubenstein David Packaged laminated constructions
GB894945A (en) * 1958-08-28 1962-04-26 Commw Scient Ind Res Org Improvements in and relating to reinforcement for reinforced concrete structure and to such structures
DE1509062A1 (de) * 1962-11-28 1973-01-18 Zezelj Branko Dipl Ing Vorrichtung zum verankern von stahldraehten beim vorspannen von bauelementen aus beton
DE1646509A1 (de) * 1967-01-25 1971-07-15 Frank Gmbh & Co Kg Max Kunststoffmauerstaerken mit verbessertem Verbund zum Ortbeton
FR2534960A1 (fr) * 1982-10-21 1984-04-27 Chandellier Antoine Nouvelle entretoise pour assurer l'ecartement des coffrages utilises pour la construction des ouvrages en beton

Also Published As

Publication number Publication date
EP0173988A2 (fr) 1986-03-12
EP0173988A3 (en) 1987-09-02
DE3432346A1 (de) 1986-03-13
DE3584920D1 (de) 1992-01-30
ATE70585T1 (de) 1992-01-15

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