EP0692352B1 - Shuttering part forming the visible surface of a concrete element - Google Patents

Shuttering part forming the visible surface of a concrete element Download PDF

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Publication number
EP0692352B1
EP0692352B1 EP95109703A EP95109703A EP0692352B1 EP 0692352 B1 EP0692352 B1 EP 0692352B1 EP 95109703 A EP95109703 A EP 95109703A EP 95109703 A EP95109703 A EP 95109703A EP 0692352 B1 EP0692352 B1 EP 0692352B1
Authority
EP
European Patent Office
Prior art keywords
shuttering part
shuttering
profile
formwork
underside
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
EP95109703A
Other languages
German (de)
French (fr)
Other versions
EP0692352A1 (en
Inventor
Wolfgang Reymann
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.)
RUDOLPH, HERMANN
Original Assignee
Reymann Technik GmbH
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6521606&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0692352(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Reymann Technik GmbH filed Critical Reymann Technik GmbH
Publication of EP0692352A1 publication Critical patent/EP0692352A1/en
Application granted granted Critical
Publication of EP0692352B1 publication Critical patent/EP0692352B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/30—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon
    • B28B1/32—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon by projecting, e.g. spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0064—Moulds characterised by special surfaces for producing a desired surface of a moulded article, e.g. profiled or polished moulding surfaces
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B2005/322—Floor structures wholly cast in situ with or without form units or reinforcements with permanent forms for the floor edges

Definitions

  • precast concrete parts fine-grained material (e.g. cement) with fiber reinforcement manufacture (to inject) and these formwork parts as so-called to use lost formwork parts, i.e. them in that Integrate precast concrete. Since such formwork parts with a closed clean surface can be used as a visible surface of the precast concrete part. Precast concrete parts are provided with a water nose to prevent this Prevent rainwater from creeping.
  • fine-grained material e.g. cement
  • fiber reinforcement manufacture to inject
  • the invention is based on the object, using the formwork parts mentioned, to produce these water lugs in a cost-effective manner.
  • the invention proposes to design the formwork part in accordance with the features of claim 1.
  • Advantageous exemplary embodiments are specified in the subclaims.
  • Fig. 1 the finished, but still in its manufacturing formwork part is shown in section and designated 1.
  • the manufacturing mold consists of a molded part 4, which determines the outer shape of the formwork part 1 and lower and upper boundary parts 5 and 6 made of magnetic material, which are fixed by magnets 3.
  • the profile 2 is inserted, which is partially enclosed by the limiting part 5 and thus fixed.
  • the formwork part 1 itself is injected into the mold, first only fine cement being sprayed onto the molded part 4 and partly onto the limiting part 6.
  • the fiber-reinforced material is then sprayed on and compressed and brought into the shape shown.
  • Metal parts can be injected into the formwork part 1 (for example threaded sleeves, welding base or a part for handling the formwork part).
  • a metal sleeve 7 is embedded as an example.
  • the parts 5 and 6 are removed and the formwork part 1 with the profile 2 adhering to it, for example a few meters long, is removed.
  • This formwork part 1 with profile 2 is then included in the formwork of the prefabricated concrete part, for example the floor slab of a balcony.
  • the precast is poured, the formwork is then integrated into the precast concrete.
  • the profile 2 which is located at the interface between the formwork part 1 and the concrete, on the underside, is pulled out. This creates the desired water nose.
  • the cross-section of a possible profile is shown in FIG. 2.
  • the profile has two webs 2a on its underside, which protrude from its shape beyond the underside of the formwork part after the formwork part 1 has been removed. This is intended to compensate for any unevenness on the formwork in order to prevent the cement from creeping into the visible area of the formwork part 1.
  • the attachment of the profile 2 at the interface between the formwork part 1 and the concrete is therefore not only used to create the water nose, but also represents a seal for the concrete and there is no visible edge.
  • the profile can consist, for example, of rubber, the surface of which preferably has a certain roughness only in the area of contact with the formwork part 1, so that the profile adheres to the formwork part. It was mentioned above that the formwork parts have a certain length.
  • FIG. 3 shows a top view of the angled formwork part with legs 8 and 9 of different lengths.
  • the formwork for the three visible surfaces of a balcony floor can be formed from two such angular parts.
  • a chamfer is preferably provided at the corner of the angular part, as shown in FIG. 3 at 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Electromagnetism (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Finishing Walls (AREA)

Abstract

The concrete part has a moulded section (1) that has a rubber-elastic profile (2) in the shape of a rainwater groove positioned on the underside. The rubber-elastic profile has bars (2a) which protrude slightly from the base. The profile is made of rubber and the surface, at least one the side facing the moulded concrete section, has a degree of roughness sufficient to ensure good adhesion. A metal sleeve (7) is embedded in the moulded section. <IMAGE>

Description

Stand der TechnikState of the art

Es ist bekannt, Schalungsteile für Betonfertigteile aus feinkörnigem Material (z.B. Zement) mit Faserverstärkung herzustellen (zu spritzen) und diese Schalungsteile als sogenannte verlorene Schalungsteile zu verwenden, d.h. sie in das Betonfertigteil zu integrieren. Da derartige Schalungsteile mit einer geschlossenen sauberen Oberfläche hergestellt werden können, werden sie als Sichtfläche des Betonfertigteils verwendet. Betonfertigteile werden mit einer Wassernase versehen, um das Kriechen von Regenwasser zu unterbinden. It is known to formwork parts for precast concrete parts fine-grained material (e.g. cement) with fiber reinforcement manufacture (to inject) and these formwork parts as so-called to use lost formwork parts, i.e. them in that Integrate precast concrete. Since such formwork parts with a closed clean surface can be used as a visible surface of the precast concrete part. Precast concrete parts are provided with a water nose to prevent this Prevent rainwater from creeping.

Schaltungsteile und deren Herstellung, allerdings ohne Wassernase, sind z.B. aus der FR-A- 2 645 565 sowie der US-A-4 223 502 bekannt. Bei den, aus diesen Druckschriften bekannten, Schalungsteilen muß die Wassernase nachträglich angebracht werden. Circuit parts and their manufacture, however without Water nose, e.g. from FR-A-2 645 565 and the US-A-4 223 502. In those known from these publications, Formwork parts must the water nose can be retrofitted.

Aufgabe und LösungTask and solution

Der Erfindung liegt die Aufgabe zu Grunde, bei Verwendung der genannten Schalungsteile, diese Wassernasen in kostengünstiger Weise herzustellen.
Zur Lösung dieser Aufgabe schlägt die Erfindung vor, das Schalungsteil entsprechend den Merkmalen des Anspruchs 1 auszubilden.
In den Unteransprüchen werden vorteilhafte Ausführungsbeispiele angegeben.The invention is based on the object, using the formwork parts mentioned, to produce these water lugs in a cost-effective manner.
To achieve this object, the invention proposes to design the formwork part in accordance with the features of claim 1.
Advantageous exemplary embodiments are specified in the subclaims.

FigurenbeschreibungFigure description

Anhand der Zeichnung wird ein Ausführungsbeispiel der Erfindung näher erläutert. Es zeigen:

Fig. 1:
Ein Schnitt durch das Schalungsteil, das sich noch in seiner Herstellungsform befindet.
Fig. 2:
Ein Schnitt durch das vergrößert herausgezeichnete Profil.
Fig. 3:
Ein als Winkelteil ausgebildetes Schalungsteil.
An exemplary embodiment of the invention is explained in more detail with reference to the drawing. Show it:
Fig. 1:
A section through the formwork part, which is still in its manufacturing form.
Fig. 2:
A section through the enlarged drawn profile.
Fig. 3:
A formwork part designed as an angle part.

In Fig. 1 ist das fertige, jedoch noch in seiner Herstellungsform befindliche Schalungsteil im Schnitt gezeigt und mit 1 bezeichnet. Die Herstellungsform besteht aus einem Formteil 4, das die äußere Form des Schalungsteils 1 bestimmt und untere und obere Begrenzungsteilen 5 und 6 aus magnetischem Material, die durch Magnete 3 fixiert sind. In die so gebildete Form wird das Profil 2 eingelegt, das zum Teil vom Begrenzungsteil 5 umschlossen und damit fixiert wird. Danach wird das Schalungsteil 1 selbst in die Form eingespritzt, wobei zuerst nur Feinzement auf das Formteil 4 und zum Teil auf das Begrenzungsteil 6 aufgespritzt wird. Danach wird dann das faserverstärkte Material aufgespritzt und verdichtet und in die gezeigte Form gebracht. In das Schalungsteil 1 können Metallteile eingespritzt werden (z.B. Gewindehülsen, Schweißgrund oder ein Teil zur Handhabung des Schalungsteils). In Fig. 1 ist als Beispiel eine Metallhülse 7 eingebettet. Nach dem Trocknen des Schalungsteils 1 werden die Teile 5 und 6 entfernt und das z.B. einige Meter lange Schalungsteil 1 mit dem an ihm haftendem Profil 2 entnommen. Dieses Schalungsteil 1 mit Profil 2 wird dann in die Schalung des zu fertigenden Betonfertigteils, z.B. der Bodenplatte eines Balkons einbezogen. Beim Gießen des Fertigteils wird dann das Schalungsteil in das Betonfertigteil integriert. Nach Austrocknen des Betonfertigteils wird das Profil 2, das sich an der Nahtstelle zwischen dem Schalungsteil 1 und dem Beton und zwar an der Unterseite befindet, herausgezogen. Hierdurch entsteht die gewünschte Wassernase. Der Querschnitt eines möglichen Profils zeigt Fig. 2. Das Profil weist an seiner Unterseite zwei Stege 2a auf, die nach Entnahme des Schalungsteil 1 aus seiner Form über die Unterseite des Schalungsteils vorstehen. Hierdurch sollen auf der Schalung vorhandene Unebenheiten ausgeglichen werden, um ein Kriechen des Zements in den Sichtbereich des Schalungsteils 1 zu vermeiden. Das Anbringen des Profils 2 an der Nahtstelle zwischen Schalungsteil 1 und dem Beton dient somit nicht nur zur Erzeugung der Wassernase, sondern stellt eine Dichtung für den Beton dar und es entsteht dadurch keine sichtbare Kante. Das Profil kann z.B. aus Gummi bestehen, dessen Oberfläche vorzugsweise nur im Bereich der Berührung mit dem Schalungsteil 1 eine gewisse Rauigkeit aufweist, sodaß das Profil an dem Schalungsteil haftet. Oben wurde erwähnt, daß die Schalungsteile eine gewisse Länge aufweisen. Bisher wurden solche Schalungsteile in Normlängen auf Vorrat gefertigt. Bei ihrem Einsatz ergaben sich Abschnitte und Reststücke als Abfall, der nur schwer recyclbar ist.
Eine Weiterbildung der Erfindung schlägt nun vor, das Schalungsteil als Winkelteil auszubilden und die Länge der Schenkel des Winkelteils entsprechend den jeweiligen Anforderungen auszubilden. Damit entfallen die durch die Gehrungsschnitte anfallenden Restteile und die Restteile, die durch das Schneiden auf richtige Länge anfallen. Bei dieser neuen Handhabung können die Schalungsteile nicht auf Lager gefertigt werden, sondern werden vor Ort im Betonwerk gemäß den Anforderungen des Einzelfalls gefertigt. Eine Draufsicht auf das gewinkelte Schalungsteil mit unterschiedlich langen Schenkeln 8 und 9 zeigt Fig. 3. Aus zwei derartigen Winkelteilen kann z.B. die Schalung für die drei sichtbaren Flächen eines Balkonbodens gebildet werden. Vorzugsweise ist an der Ecke des Winkelteils eine Fase vorgesehen, wie dies Fig. 3 bei 10 zeigt.In Fig. 1 the finished, but still in its manufacturing formwork part is shown in section and designated 1. The manufacturing mold consists of a molded part 4, which determines the outer shape of the formwork part 1 and lower and upper boundary parts 5 and 6 made of magnetic material, which are fixed by magnets 3. In the shape thus formed, the profile 2 is inserted, which is partially enclosed by the limiting part 5 and thus fixed. Then the formwork part 1 itself is injected into the mold, first only fine cement being sprayed onto the molded part 4 and partly onto the limiting part 6. The fiber-reinforced material is then sprayed on and compressed and brought into the shape shown. Metal parts can be injected into the formwork part 1 (for example threaded sleeves, welding base or a part for handling the formwork part). 1, a metal sleeve 7 is embedded as an example. After the formwork part 1 has dried, the parts 5 and 6 are removed and the formwork part 1 with the profile 2 adhering to it, for example a few meters long, is removed. This formwork part 1 with profile 2 is then included in the formwork of the prefabricated concrete part, for example the floor slab of a balcony. When the precast is poured, the formwork is then integrated into the precast concrete. After the precast concrete has dried out, the profile 2, which is located at the interface between the formwork part 1 and the concrete, on the underside, is pulled out. This creates the desired water nose. The cross-section of a possible profile is shown in FIG. 2. The profile has two webs 2a on its underside, which protrude from its shape beyond the underside of the formwork part after the formwork part 1 has been removed. This is intended to compensate for any unevenness on the formwork in order to prevent the cement from creeping into the visible area of the formwork part 1. The attachment of the profile 2 at the interface between the formwork part 1 and the concrete is therefore not only used to create the water nose, but also represents a seal for the concrete and there is no visible edge. The profile can consist, for example, of rubber, the surface of which preferably has a certain roughness only in the area of contact with the formwork part 1, so that the profile adheres to the formwork part. It was mentioned above that the formwork parts have a certain length. So far, such formwork parts have been made in stock in standard lengths. When used, sections and remnants resulted in waste that is difficult to recycle.
A development of the invention now proposes to design the formwork part as an angle part and to design the length of the legs of the angle part in accordance with the respective requirements. This eliminates the remaining parts resulting from the miter cuts and the remaining parts that result from cutting to the correct length. With this new handling, the formwork parts cannot be made in stock, but are manufactured on site in the concrete plant according to the requirements of the individual case. FIG. 3 shows a top view of the angled formwork part with legs 8 and 9 of different lengths. For example, the formwork for the three visible surfaces of a balcony floor can be formed from two such angular parts. A chamfer is preferably provided at the corner of the angular part, as shown in FIG. 3 at 10.

Claims (7)

  1. Shuttering part which forms the visible surface of a prefabricated concrete element, and consists of fibre-reinforced, fine-grained material which is cast into the prefabricated concrete element, characterized in that a weather groove is made on the underside, at the seam between the shuttering part and the concrete, such that on its underside, at the seam with the concrete, the shuttering part (1) has a profile (2) which corresponds to the form of the weather groove and consists of elastomeric material which adheres to the shuttering part.
  2. Shuttering part according to Claim 1, characterized in that, on its underside, the profile (2) has lugs (2a) which project slightly beyond the underside of the shuttering part.
  3. Shuttering part according to Claim 1 or 2, characterized in that the profile (2) consists of rubber whose surface, at least on the side which is directed towards the shuttering part (1), has a degree of roughness which is sufficient for the adherence to the shuttering part.
  4. Shuttering part according to one of Claims 1 to 3, characterized in that metal pieces (7) are secured in the shuttering part (1) during the injection operation.
  5. Shuttering part which forms the visible surface of a prefabricated concrete element, and consists of fibre-reinforced, fine-grained material which is cast into the prefabricated concrete element, according to one of Claims 1 to 3, characterized in that the shuttering part is designed in one piece as an angled part (Figure 3).
  6. Shuttering part according to Claim 5, characterized in that the length of the legs (8, 9) are produced to correspond to the respective requirements of each individual case.
  7. Shuttering part according to Claim 5 or 6, characterized in that, at its corner edge, it has a chamfer (10).
EP95109703A 1994-06-29 1995-06-22 Shuttering part forming the visible surface of a concrete element Expired - Lifetime EP0692352B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4422448A DE4422448A1 (en) 1994-06-29 1994-06-29 The visible surface of a formwork part forming a precast concrete element
DE4422448 1994-06-29

Publications (2)

Publication Number Publication Date
EP0692352A1 EP0692352A1 (en) 1996-01-17
EP0692352B1 true EP0692352B1 (en) 1998-09-23

Family

ID=6521606

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95109703A Expired - Lifetime EP0692352B1 (en) 1994-06-29 1995-06-22 Shuttering part forming the visible surface of a concrete element

Country Status (3)

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EP (1) EP0692352B1 (en)
AT (1) ATE171411T1 (en)
DE (2) DE4422448A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19711211C2 (en) 1997-03-18 2001-05-10 Bilfinger Berger Bau Formwork element

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2554110A (en) * 1946-12-10 1951-05-22 Gotthard J Lemm Mold for casting columnar building blocks
FR1191481A (en) * 1958-02-13 1959-10-20 Manufacturing process of terracotta facing elements or any other ceramic products and elements obtained
US3526070A (en) * 1968-11-13 1970-09-01 Max W Deason Pool deck form
CH583615A5 (en) * 1974-10-19 1977-01-14 Honel Ag
GB1516846A (en) * 1975-11-24 1978-07-05 Howard K Slabs and blocks
US4223502A (en) * 1978-03-08 1980-09-23 Olympian Stone Company, Inc. Building panel with stone facing and glass fiber reinforced concrete
SE406881B (en) * 1978-05-30 1979-03-05 Euroc Development Ab PROCEED TO MAKE A LAMINATE
DE2938325A1 (en) * 1979-09-21 1981-04-09 Dietrich Mehlhose Waterproof wall joint flat concrete roof - has verge sealing profile retained as lost formwork when cast
DE3203299A1 (en) * 1982-02-01 1983-08-11 V.I.L.-Bauelemente GmbH & Co KG, 7128 Lauffen Ceiling-edge supporting angle
DE8431614U1 (en) * 1984-10-27 1986-02-20 ORI-PRIMAT Handelsgesellschaft mbH & Co KG, 5650 Solingen Ceiling edge capping stone
FR2643010B1 (en) * 1989-02-16 1992-10-09 Desjoyaux Jean Louis ELEMENT FOR THE PRODUCTION OF CONCRETE SLABS OR CUTTERS IN PARTICULAR
FR2645565B1 (en) * 1989-04-11 1997-04-11 Public Essais Etudes Lab PREFABRICATED FACING ELEMENTS, MOLD AND TEMPLATE FOR THEIR MANUFACTURE
DE4235879C2 (en) * 1992-10-23 1999-09-09 Horstmann Baubedarf Gmbh Ceiling edge formwork element and use of the same
DE9405741U1 (en) * 1994-04-07 1994-06-01 Max Frank Gmbh & Co Kg, 94339 Leiblfing Shuttering element

Also Published As

Publication number Publication date
DE4422448A1 (en) 1996-01-11
DE59503670D1 (en) 1998-10-29
EP0692352A1 (en) 1996-01-17
ATE171411T1 (en) 1998-10-15

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