EP2025485A1 - Produit de fibrociment - Google Patents

Produit de fibrociment Download PDF

Info

Publication number
EP2025485A1
EP2025485A1 EP07450136A EP07450136A EP2025485A1 EP 2025485 A1 EP2025485 A1 EP 2025485A1 EP 07450136 A EP07450136 A EP 07450136A EP 07450136 A EP07450136 A EP 07450136A EP 2025485 A1 EP2025485 A1 EP 2025485A1
Authority
EP
European Patent Office
Prior art keywords
fiber cement
cement product
blasting
product according
group
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.)
Withdrawn
Application number
EP07450136A
Other languages
German (de)
English (en)
Inventor
Thomas Dipl.-Ing. Endl
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.)
Eternit Werke Ludwig Hatschek AG
Original Assignee
Eternit Werke Ludwig Hatschek AG
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 Eternit Werke Ludwig Hatschek AG filed Critical Eternit Werke Ludwig Hatschek AG
Priority to EP07450136A priority Critical patent/EP2025485A1/fr
Priority to PCT/AT2008/000278 priority patent/WO2009021253A1/fr
Publication of EP2025485A1 publication Critical patent/EP2025485A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/08—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads
    • B28B11/0818—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads for roughening, profiling, corrugating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • 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
    • E04C2/044—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 of concrete

Definitions

  • the invention relates to a fiber cement product, in particular a fiber cement board, for application to walls such as facades or interior walls, on floors and the like and for use in furniture construction.
  • Such products have a visible after application or assembly, the viewer accessible surface, which should be designed according to the aesthetic requirements of the particular application.
  • the visible surfaces of fiber cement boards applied to building walls may be particularly colored.
  • a common method for the production of regularly structured surfaces is embossing, for example using embossing rollers, which convey a regularly recurring image of the embossment present on the reel to a previously unstructured surface by unrolling the embossing roller. Embossing by means of structured sheets also leads to a recurring pattern.
  • structured is understood for the purposes of the present invention, a non-smooth surface structuring, which is designed so that it consists of a Distance of more than 1m, in particular from a distance of more than 5m is visible to the naked eye.
  • the object of the invention is thus to overcome the aesthetic problems of "regularly" structured surfaces in such a way that, on the one hand, a positive visual impression is produced and, moreover, this can also be perceived from a distance of several meters.
  • the structure is preferably achieved by machining the surface by a material-removing or cutting process. This includes in particular methods in which the surface is removed by material particles. Such methods enable a simple and inexpensive generation of an irregular structure.
  • the invention relates in particular to the production of an irregular structure on the surface of a fiber cement product, such as fiber cement boards, which are suitable for installation on floors, walls and ceilings both indoors and outdoors of buildings, especially as cladding, as well as furniture building materials ,
  • irregular structures evoke an impression that is perceived as soothing, natural, unaffected and restful. This impression is all the more important, the bigger the surface is.
  • the latter condition means that a paint or varnish application on the surface to produce an irregular structure eliminated because the caused by a textured paint or a structural color formations are so small that even at a distance of less than one meter in the viewer the impression of a smooth surface without structure arises.
  • the remedy is to produce an irregular structure, in particular by means of a metal-removing or material-removing process, in which the surface of the fiber cement product is removed and thereby roughened.
  • the irregular structure consists of a random arrangement of elevations and depressions.
  • the mean distance between adjacent elevations and depressions should preferably be at least 100 ⁇ m.
  • the irregular structure of the surface can be produced by a material-removing process, which can be, in particular, a blasting process.
  • a material-removing process which can be, in particular, a blasting process.
  • Such methods are known, for example, in the use of sand as blasting abrasive sandblasting.
  • the blasting agent may, however, in a conventional manner from particles of stainless steel, cast steel, slag, chilled cast iron, wire grain, aluminum, corundum, ceramic, glass, fruit cores, polyamide, thermosets, polycarbonate, dry ice and mixtures thereof.
  • Fiber cement products per se have already due to their production by mixing fibers, a hydraulic binder (cement) and various additives to an irregular texture, which, however, does not emerge in the unprocessed state of the fiber cement product.
  • a material-removing machining such as sandblasting, however, the inherent material nature comes to light, so that it is perceivable even from a greater distance than the surface structure.
  • the duration of the jet, the impact angle of the abrasive on the surface, the hardness of the abrasive compared to the surface hardness of the fiber cement product and the grain size of the abrasive can so from a rather quiet All kinds of surfaces are created to a very rough, lively structure, but they always remain pattern-free and therefore produce a visually positive, aesthetic impression.
  • the shape of the peaks and valleys is also variable by the above parameters.
  • the depressions may be, for example, shell-shaped or teardrop-shaped or, in the case of very flat angles of incidence, also form oblong stripes.
  • the material-removing method can furthermore be followed by at least one further processing method such as brushing, polishing or coating the treated surface, as a result of which the structure can be permanently solidified, weather-resistant and / or colored.
  • the machining can take place both during the production of the fiber cement products and after the assembly thereof.
  • a fiber cement panel of the size 3030 x 1230 x 12 mm was treated by means of a sandblasting machine of F. Ruby (SM 200). It is a 2001-chamber single-chamber sandblast with pneumatic remote control. The blower was manually directed to the fiber cement board and this blasted in a zig-zag-like course.
  • SM 200 F. Ruby
  • the abrasive used was stone slag.
  • the stone-slag particles have an angular shape and have a diameter of less than or equal to 2 mm.
  • the fiber cement boards processed in this way have a very finely structured surface.
  • the blasted fiber cement board produced according to Example 1 can be cleaned in a further processing step, for example, swept away and vacuumed and coated twice, for example with a transparent acrylate coating.
  • a further processing step for example, swept away and vacuumed and coated twice, for example with a transparent acrylate coating.
  • Fig. 1 the left side of the fiber cement board is coated, the right side uncoated for comparison.
  • the coating is done because an uncoated surface is much dirtier than a coated one. Furthermore, in the case of uncoated boards, contact with water can lead to lime efflorescence, which is undesirable.
  • Example 1 Disadvantage of the manual blasting method of Example 1 is that the processing of a single fiber cement plate takes a relatively long time, furthermore, the individual parameters that affect the material removal, not easily changed.
  • the blasting material is thrown by the centrifugal force at about 50 m / s onto the fiber cement board to be processed.
  • Three blast wheels radiate the top of the fiber cement board. The remaining three blast wheels for the underside can be switched on if necessary.
  • the feed of the system to 3 m / min and as a blasting medium steel balls with a diameter of 1 mm can be selected.
  • the blasted fiber cement board produced according to Example 3 was cleaned in a further processing step, in this case turned away and sucked off, and once coated with a covering acrylate coating.
  • the fiber cement board is in Fig. 2 shown.
  • the fiber cement panels blasted according to Example 3 were brushed wet by means of a polishing and brushing machine from Hensel and Burkhardt Model 561.
  • a polishing brush of fineness / grain 500 was used, the applied grinding pressure was 2.4 bar and the fiber cement board was brushed twice along the contour and twice in each longitudinal and transverse direction.
  • the wet brushing has the additional advantage that the surface of the machined fiber cement board is dust-free and free from loose parts after processing.
  • the blasted and brushed fiber cement board was then dried to a humidity of 11% and coated by means of acrylate paint.
EP07450136A 2007-08-14 2007-08-14 Produit de fibrociment Withdrawn EP2025485A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP07450136A EP2025485A1 (fr) 2007-08-14 2007-08-14 Produit de fibrociment
PCT/AT2008/000278 WO2009021253A1 (fr) 2007-08-14 2008-08-07 Produit en fibrociment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07450136A EP2025485A1 (fr) 2007-08-14 2007-08-14 Produit de fibrociment

Publications (1)

Publication Number Publication Date
EP2025485A1 true EP2025485A1 (fr) 2009-02-18

Family

ID=39248417

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07450136A Withdrawn EP2025485A1 (fr) 2007-08-14 2007-08-14 Produit de fibrociment

Country Status (2)

Country Link
EP (1) EP2025485A1 (fr)
WO (1) WO2009021253A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017212320A1 (fr) * 2016-06-10 2017-12-14 Manicardi Massimo Procédé de production de carreaux céramiques structurés

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2952310A1 (fr) 2014-06-03 2015-12-09 Eternit NV Procédé permettant d'obtenir un article en fibrociment
PL3152020T3 (pl) 2014-06-03 2020-12-28 Eternit Nv Sposób dostarczania produktu włókno-cementowego

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1502958A (en) * 1974-10-10 1978-03-08 Fulgurit Werke Method of and apparatus for producing boards of fibrous cementitious material
JPS5375221A (en) * 1976-12-16 1978-07-04 Shikoku Kasei Kougiyou Kk Manufacture of artificial otani stone
US5107629A (en) * 1989-11-09 1992-04-28 The Celotex Corporation Texturing of acoustical mineral fiberboard with wheel blast machine
AT6620U1 (de) * 2002-11-11 2004-01-26 Sw Umwelttechnik Stoiser & Wol Schleuderbeton-erzeugnis und verfahren zu dessen herstellung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1502958A (en) * 1974-10-10 1978-03-08 Fulgurit Werke Method of and apparatus for producing boards of fibrous cementitious material
JPS5375221A (en) * 1976-12-16 1978-07-04 Shikoku Kasei Kougiyou Kk Manufacture of artificial otani stone
US5107629A (en) * 1989-11-09 1992-04-28 The Celotex Corporation Texturing of acoustical mineral fiberboard with wheel blast machine
AT6620U1 (de) * 2002-11-11 2004-01-26 Sw Umwelttechnik Stoiser & Wol Schleuderbeton-erzeugnis und verfahren zu dessen herstellung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 197832, Derwent World Patents Index; AN 1978-57530A, XP002475614 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017212320A1 (fr) * 2016-06-10 2017-12-14 Manicardi Massimo Procédé de production de carreaux céramiques structurés

Also Published As

Publication number Publication date
WO2009021253A1 (fr) 2009-02-19

Similar Documents

Publication Publication Date Title
WO2012119586A1 (fr) Procédé de traitement d'une surface structurée d'un outil d'estampage
DE2023121A1 (de) Strukturierte Verkleidungstafeln und Verfahren zur Herstellung strukturierter Flaechen
DE102013212700A1 (de) Verfahren zur Herstellung einer Schleifeinheit
DE202012004375U1 (de) Werkstoffplatte mit einer strukturierten Oberfläche
DE2001915A1 (de) Verfahren und Vorrichtung zum Kaltwalzen
CH638267A5 (de) Fassadenplatte.
EP4212254A1 (fr) Procédé et dispositif de traitement de surface
DE102006050754A1 (de) Verfahren zur Formgestaltung von Betonsteinen und/oder Betonplatten
EP0319972B1 (fr) Procédé de fabrication et/ou de traitement de blocs de béton
EP2025485A1 (fr) Produit de fibrociment
WO2014026943A1 (fr) Structurations de la surface de feuillards et de tôles estampées
EP1582628B1 (fr) Procédé pour la fabrication d'une dalle en pierre artificielle drainante
DE10054581A1 (de) Verfahren zum Fertigen von Betonsteinen oder Betonplatten
AT508628B1 (de) Verfahren zum bearbeiten von oberflächen eines werkstücks aus einem holzwerkstoff
EP0448510B1 (fr) Procédé pour éviter des fissures dans des disques de découpage ou de meulage
EP3680028B1 (fr) Application au rouleau des peinture sur surfaces en bois
DE10340238B4 (de) Beschichtungsverfahren
WO2011098284A2 (fr) Procédé et dispositif d'application d'une couche de surface sur un cylindre et leur utilisation
DE202007018670U1 (de) Fassadenbehandlung
DE2019387A1 (de) Verfahren zur Erzeugung von Gravierungen und Basreliefs an aus hartem oder festem Material bestehenden Gegenstaenden
DE2423661A1 (de) Verfahren zur herstellung eines gemusterten fussbodens oder fussbodenbelages
DE102012101482A1 (de) Verfahren zur maschinellen Oberflächenbehandlung von Bauelementen und Vorrichtung dafür
DE10158455B4 (de) Verfahren zum Veredeln der Oberfläche von Bauteilen aus zementgebundenen Baustoffen
DE102015203041B4 (de) Verfahren sowie Gel zum Herauslösen von Schmutzpartikeln aus Poren einer Oberfläche
AT519302B1 (de) Verfahren zur Herstellung einer Pressmatrize

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20090819