EP0854247B1 - Verfahren zur Herstellung eines Wand-Plattenelementes - Google Patents
Verfahren zur Herstellung eines Wand-Plattenelementes Download PDFInfo
- Publication number
- EP0854247B1 EP0854247B1 EP97118003A EP97118003A EP0854247B1 EP 0854247 B1 EP0854247 B1 EP 0854247B1 EP 97118003 A EP97118003 A EP 97118003A EP 97118003 A EP97118003 A EP 97118003A EP 0854247 B1 EP0854247 B1 EP 0854247B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- concrete
- molding box
- dry mix
- top edge
- 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
Links
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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
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/008—Producing shaped prefabricated articles from the material made from two or more materials having different characteristics or properties
-
- 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
- B28B7/40—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
- B28B7/46—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for humidifying or dehumidifying
- B28B7/465—Applying setting liquid to dry mixtures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
Definitions
- the invention relates to a method for producing a wall or Ceiling plate element and in particular an industrially prefabricated Interior wall or ceiling panel element.
- GB 2 222 981 A is a process for the production of wall or Ceiling-plate elements known, in which a first, relatively dry Concrete mix placed in a molding box and compacted by vibration becomes.
- This concrete mix consists of foam polystyrene granules, Cement and fine aggregates.
- the station will be a top layer consisting of cement and fine aggregates abandoned and also compacted by vibration on a vibrating table. This should also be the one that is open at the top in the molding box Visible side of the plate element with regard to the smoothness of its surface can still be improved.
- the object of the invention is based on a method for producing a wall or ceiling plate element specify with the one on the opposite of the mold base Surface of the plate element a clean, attractive To create a visible side that can be painted or papered directly.
- the essence of the invention is the measure that a dry Mixture of fine aggregate and binder on the in the Mold box filled concrete layer is applied so that this dry-ne Mixing layer a supernatant opposite the edge of the Has molded box. Then the dry mix layer compacted, namely run over with a smoothing roller, for example. By applying the dry mix layer to the damp concrete and compacting, the dry mixture is gradually moistened and binds with it over time.
- the material preferably sticks when compacted with a vibrating smoothing roller does not work on it, because the moisture the surface of the layer has not yet reached what is positive affects the surface quality.
- the use of dry Mixing layer in addition to the surface coating another function, because this layer allows the water to set from the one below Concrete material relates. The latter is filled into the molding box and compacted by vibration, being regularly on the concrete layer Settles water. Without further action, this would be a nuisance the concrete hardness on the surface. The angry one dry mixture layer takes just this accumulating Water, thereby avoiding the above problems. Further this dry mixture layer holds the ascending mentioned above Air bubbles in the material return, causing them to burst and the associated Loss of surface quality prevented.
- the reference numeral 1 is an essentially cuboid, Designated open top box, which has a flat floor 2 and two longitudinal and transverse mold walls 3, 4, of which in 1 only one wall is shown.
- the one from the mold walls 3, 4 formed upper end edge 5 of the molding box 1 defines the thickness of the inner wall plate element 6 to be produced (FIG. 4).
- concrete mass 7 is first placed in the molding box 1 applied in such an amount that the top 8 of the formed Concrete layer 9 an undersize u compared to the end edge 5 of the molding box 1 has.
- the undersize u is after appropriate vibration compression the concrete layer 9 and a smooth line on the top 8 about 5 mm.
- a layer 10 of a dry mixture is then applied to the concrete layer 9 made of quartz sand as fine aggregate and cement as binder applied from a hopper 11 movable over the molding box 1.
- the quartz sand has a grain size between 0 and 0.5 mm and will mixed with cement in the ratio of quartz sand: cement of about 3: 1. It is advantageous to mix in a substance that has a time delay moisture absorption of the dry mixture. This allows the setting of the layer to be timed. As substances this is usually the case in the mortar industry used mortar retarder.
- the hopper 11 is in the Height of its outlet opening adjusted so that the dry mixture layer 10 with a protrusion x of about 2 mm from the end edge 5 of the molding box 1 is applied. With the application of the Dry mixture layer 10 sucks this through the vibration compaction of the concrete mass 7 accumulating water on the surface and also draws further moisture from the concrete layer 9 as required, whereby the mixture layer 10 is moistened and set.
- the mixture layer 10 by means of a vibrating smoothing roller 12 on a level with the upper End edge 5 of the molding box 1 is compressed, thereby the mixture layer 10 binds to a hard layer 13 smooth on the surface.
- the smoothing roller 12 can also have a vibrating smoothing skid for compacting be used.
- the latter can then be additionally increased by fog are moistened, as indicated in Fig. 4.
- a fogging nozzle 14 is led over the molding box 1.
- the inner wall plate element 6 shown in the final state in FIG. 4 has then on a statically resilient concrete layer 9, which with a (not steel reinforcement is provided. From the bottom 2 of the molding box 1 molded first visible side 15 of the plate 6 is without further measures smooth. The hard layer 13 applied opposite the visible side 15 forms with its top the second, also very smooth visible side 16 of the Plate 6.
- FIG. 5 shows two adjacent ceiling slab elements 17.1 and 17.2, their Longitudinal edges 18, 1 and 18, 2 have a potting compound 19 between them release the lockable channel.
- the hard layer 13 On the top of the two panel elements 17.1 and 17.2 the hard layer 13 can be seen in each case, however with a lateral distance in front of the longitudinal edges 18.1, 18.2 of the platter elements 17.1, 17.2 ends.
- the "layer-free" strip 20 thus formed is based on the fact that there is an order from Powder layer 10 is dispensed with.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Finishing Walls (AREA)
- Panels For Use In Building Construction (AREA)
- Producing Shaped Articles From Materials (AREA)
- Electron Tubes For Measurement (AREA)
- Glass Compositions (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Building Environments (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Description
Die vom Boden des Formkastens ausgeformte Sichtseite der Platte stellt dabei kein Problem da, da sie von Haus aus eine hohe Oberflächengüte aufweist. Schwieriger ist dagegen die im Formkasten freiliegende Oberseite, wo eine hohe Oberflächengüte durch Abziehen der Betonfüllung erreicht werden soll. Insbesondere bei groben Beton-Zuschlagstoffen oder sehr weichem Beton führt das Abziehen jedoch zu Rillen und Lunkern, was nicht akzeptabel ist. Zur Abhilfe wird mit dem Abziehen abgewartet, bis der Beton etwas angezogen hat, wonach schließlich die Oberfläche noch mit einer Glättkelle behandelt wird. Auch diese Arbeitsweise ist nicht optimal, da die Glättkelle erfahrungsgemäß Riefen hinterläßt. Ein weiteres Problem liegt in den Luftblasen, die insbesondere bei weichem Beton aufsteigen und an der Oberseite zerplatzen können. Dies führt wiederum zu Unregelmäßigkeiten der Oberfläche.
- Fig. 1 bis 4
- schematische Vertikalschnitte durch einen Formkasten in aufeinanderfolgenden Herstellungsschritten eines Plattenelements und
- Fig. 5
- einen schematischen Vertikalschnitt durch zwei benachbarte Decken-Platten-Elemente.
Claims (9)
- Verfahren zur Herstellung eines Wand- oder Decken-Plattenelementes, insbesondere eines industriell vorfertigbaren Innenwand- oder Innendecken-Plattenelementes (6), mit folgenden Verfahrensschritten:a) Eingießen einer Betonmasse (7) in einen oben offenen Formkasten (1),b) Aufbringen einer Schicht (10) einer trockenen Mischung aus Feinzuschlagstoff und Bindemittel auf die Betonschicht (9) mit Überstand (x) gegenüber dem Abschlußrand (5) des Formkastens (1),c) Verdichten der trockenen Mischungsschicht (10) unter Durchfeuchten und Abbinden der Mischungsschicht (10) zu einer an der Oberfläche glatten Hartschicht (13).
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die trokkene Mischung der Schicht (10) aus Feinsand vorzugsweise einer Korngröße zwischen 0 und 0,5 mm, maximal 1,0 mm, als Feinzuschlagstoff und aus Zement als Bindemittel besteht.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß Feinsand und Zement im Verhältnis von etwa 3 : 1 in der trockenen Mischung vorliegen.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Betonmasse (7) derart in den Formkasten (1) eingegossen wird, daß die Oberseite (8) der gebildeten Betonschicht (9) ein Untermaß (u) gegenüber dem oberen Abschlußrand (5) des Formkastens (1) aufweist, das gegenüber dem oberen Abschlußrand (5) des Formkastens (1) vorzugsweise etwa 5 mm beträgt.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die in den Formkasten (1) eingegossene Betonmasse (7) auf Gleichmaß mit dem oberen Abschlußrand (5) des Formkastens (1) abgezogen wird.
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Überstand (x) der Schicht (10) der trockenen Mischung gegenüber dem Abschlußrand (5) des Formkastens (1) etwa 1 mm bis 4 mm beträgt.
- Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Verdichten der Schicht (10) der trockenen Mischung mit einer vorzugsweise vibrierenden Glättwalze (12) oder -kufe erfolgt.
- Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die verdichtete Mischungsschicht (10) vorzugsweise durch Benebelung zusätzlich befeuchtet wird.
- Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß der trockenen Mischung für die Schicht (10) ein Zusatzmittel zur Steuerung der Feuchtigkeitsaufnahme zugegeben wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19653252 | 1996-12-20 | ||
DE19653252A DE19653252A1 (de) | 1996-12-20 | 1996-12-20 | Verfahren zur Herstellung eines Wand-Plattenelementes |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0854247A2 EP0854247A2 (de) | 1998-07-22 |
EP0854247A3 EP0854247A3 (de) | 1998-12-16 |
EP0854247B1 true EP0854247B1 (de) | 2003-07-09 |
Family
ID=7815500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97118003A Expired - Lifetime EP0854247B1 (de) | 1996-12-20 | 1997-10-17 | Verfahren zur Herstellung eines Wand-Plattenelementes |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0854247B1 (de) |
AT (1) | ATE244802T1 (de) |
DE (2) | DE19653252A1 (de) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2337728A1 (de) * | 1973-07-25 | 1975-02-06 | Kurt Glass Chem Fabrik | Bauelement aus beton od. dgl |
FR2498516A1 (fr) * | 1981-01-26 | 1982-07-30 | Speranza Vitino | Procede de fabrication de dalles |
GB2222981B (en) * | 1988-09-22 | 1992-07-08 | Cyril Oury Duke | Manufacture of concrete products |
JP3226591B2 (ja) * | 1992-02-25 | 2001-11-05 | シーシーエイ株式会社 | 模様入り成形体の製造方法 |
-
1996
- 1996-12-20 DE DE19653252A patent/DE19653252A1/de not_active Withdrawn
-
1997
- 1997-10-17 DE DE59710413T patent/DE59710413D1/de not_active Expired - Fee Related
- 1997-10-17 AT AT97118003T patent/ATE244802T1/de not_active IP Right Cessation
- 1997-10-17 EP EP97118003A patent/EP0854247B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0854247A3 (de) | 1998-12-16 |
ATE244802T1 (de) | 2003-07-15 |
DE59710413D1 (de) | 2003-08-14 |
DE19653252A1 (de) | 1998-06-25 |
EP0854247A2 (de) | 1998-07-22 |
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