WO2020078525A1 - Renfort pour renforcer une couche de plâtre - Google Patents

Renfort pour renforcer une couche de plâtre Download PDF

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Publication number
WO2020078525A1
WO2020078525A1 PCT/EP2018/000475 EP2018000475W WO2020078525A1 WO 2020078525 A1 WO2020078525 A1 WO 2020078525A1 EP 2018000475 W EP2018000475 W EP 2018000475W WO 2020078525 A1 WO2020078525 A1 WO 2020078525A1
Authority
WO
WIPO (PCT)
Prior art keywords
reinforcement
graining
plaster
structuring
binder
Prior art date
Application number
PCT/EP2018/000475
Other languages
English (en)
Inventor
Thomas Wieczorek
Igor EISENBRAUN
Original Assignee
Knauf Gips Kg
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 Knauf Gips Kg filed Critical Knauf Gips Kg
Priority to EP18811709.7A priority Critical patent/EP3867209A1/fr
Priority to PCT/EP2018/000475 priority patent/WO2020078525A1/fr
Publication of WO2020078525A1 publication Critical patent/WO2020078525A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates

Definitions

  • the invention relates to a reinforcement, preferably a woven reinforcement fabric, for reinforcing a plaster layer.
  • the invention furthermore relates to a method for producing a reinforcement and a method for creating a structured surface.
  • Reinforcement mortar and reinforcement plaster shall be understood here and hereinafter to be substantially synonymous. Specifically, for the aspects considered in the present case, it can be substantially irrelevant what material is used for the reinforcement plaster. This is true in particular for example for material that is cement-based or gypsum-based.
  • the reinforcement is preferably introduced into the reinforcement plaster layer in such a way that approximately two thirds of the material layer thickness are beneath the reinforcement and one third is above.
  • the reinforcement is thus embedded in the reinforcement plaster correspondingly.
  • a reinforcement can therefore be, for example, a woven reinforcement fabric or also a reinforcement mesh. It can be made for example of a glass fibre woven fabric, and can have different mesh widths (for example 4 x 4 mm or 5 x 5 mm) and weights per unit area. Reference can be made additionally for example, merely as background information, to the disclosure of documents US 2,208,191 , EP 2 733 272 and DE 10 2005 040 090 B4. Document US 2,208,191 relates to a multi-layer external plaster structure with a reinforcement, document EP 2 733 272 relates to an ETICS, and DE 10 2005 040 090 B4 relates to a woven reinforcement fabric in a reinforcement plaster.
  • the invention proceeds in particular from a reinforcement plaster which is intended to have an optically aesthetic appearance, for example by means of a decor (or ornament).
  • An aesthetic appearance of this kind has been provided previously by means of a finishing plaster or an application of finishing plaster to the reinforcement plaster, for example as indicated in the aforesaid document US 2,208,191.
  • the object of the invention is to provide a decor to a reinforcement plaster in an improved and simplified way.
  • a reinforcement which is characterised by at least one structuring additive, preferably a structuring graining.
  • This solution according to the invention in a surprisingly simple manner, has the advantage that a structure can be introduced already into the reinforcement plaster selectively and in a tailored manner, which structure provides (or contributes to) the external appearance, the decor, of the plaster during and after the embedding of the reinforcement in the reinforcement plaster layer, respectively.
  • the structured surface of the plaster can even be provided much more precisely, more reliably, more easily and more reproducibly, and in a more standardised manner to a certain extent.
  • the structured surface of the plaster thus can be even better planned and defined, for example by an architect, as a creative means of expression. For example, it can thus be incorporated in a complete facade design.
  • the structured surface formed in accordance with the invention can preferably also be provided additionally with a top coating, in particular with a paint.
  • the structuring according to the invention can be provided preferably and in a particularly simple manner (directly) by the use of graining. However, it can also be provided (indirectly) by at least one, in particular chemical additive, which for example induces structuring by the formation of bubbles in the plaster material itself.
  • additives which act as air-entraining agents and/or liquefiers for example are suitable.
  • graining and chemical additives can also be combined with one another as appropriate.
  • the graining can be selected fundamentally on the basis of creative aspects, in particular can be selected to be coarser or finer, for example in grain sizes from grit to gravel.
  • the grain size classes constituted by medium sand, coarse sand, fine gravel (grus), medium gravel (pea gravel) can also be comprised.
  • Rocks in particular natural rocks, preferably silicate rocks, silicate minerals and/or carbonate rocks, preferably sand-lime brick, marble and/or perlite can be used.
  • a“spar dash” design could be provided.
  • perlite it is possible to use perlite to reduce the weight of the reinforcement.
  • Various grain sizes can also be selected for a graining, for example so as to obtain a grain structure formed of a finishing grain (or structuring grain) and fine-material fractions.
  • the finishing grain or structuring grain is the largest grain in the grain structure and is ultimately decisive for the character of the surface structure.
  • a next embodiment of the invention is characterised in that the graining is bound to the reinforcement by a binder, preferably a low-viscosity binder, such as a dispersion.
  • a binder preferably a low-viscosity binder, such as a dispersion.
  • This binding to the reinforcement could be achieved for example by painting the binder onto the reinforcement or by immersing the reinforcement in the binder.
  • the binder can be a water-soluble and/or reversibly binding binder.
  • a dispersion could also be considered in particular for a preferred binder of this kind.
  • dispersions from the company Wacker which are sold in the form of a dispersible polymer powder under the name“Vinnapas” could be considered as appropriate dispersions.
  • the binder dissolves in the moist plaster as the reinforcement is embedded.
  • the graining can thus detach from the reinforcement to such an extent that it is slightly more freely relocatable, for example.
  • the graining for example can thus be oriented in the plaster in an ordered manner by the smoothing of the plaster.
  • the plaster can be smoothed flat for example by further pressing and embedding the reinforcement, which has first been pressed into the reinforcement plaster layer manually, into the plaster layer, flat over the entire area, using preferably a batten.
  • the graining, or the structuring grain can additionally also be oriented automatically, wherein a complete covering of the structuring grain with the plaster should be avoided.
  • a next embodiment of the invention is characterised by additives influencing the structure.
  • the additives could also be liquefiers and/or air-entraining agents, merely by way of example.
  • an air-entraining agent could contribute alone and/or together with a graining to the formation of a structure.
  • a liquefier could in particular improve or promote the cross-linking between the reinforcement material, the graining and the reinforcement plaster.
  • a next embodiment provides at least one thickening agent, preferably methylcellulose.
  • the binder could thus be made more voluminous, to be able to carry more graining.
  • products from the company SE Tylose GmbH & Co. KG could be used as methylcellulose, for example Tylose MH 10007.
  • other cellulose ethers could equally be used as thickening agent.
  • the reinforcement can contain at least one fungicide.
  • fungal attacks can be avoided by means of fungicides.
  • a mixture based on a plurality of fungicides can also be contained in the reinforcement.
  • a compound formed of graining and additives is provided.
  • the compound is preferably already prepared prior to being applied to the reinforcement.
  • Another embodiment of the invention provides a reinforcement, which is provided in the form of pre-manufactured roll material, web material or sheet material. If a larger or coarser graining is provided, it can be advantageous to provide the reinforcement in sheet form. Finer grainings can also be provided very easily on rollable material.
  • a pattern, in particular formed of regions with graining and regions without graining, is readily possible in all the alternatives. However, of course a reinforcement with graining over the entire area of the reinforcement is also possible.
  • a woven reinforcement fabric which for example can be formed as a rollable netting, as a web material or as a mesh in sheet form is preferably provided.
  • the reinforcement is formed with at least one region provided with graining, preferably a strip or a field, instead of with graining over the entire area.
  • a pattern can thus be formed, on the other hand at least one overlap region remaining free from graining, preferably an overlap strip, for overlapping with an adjacent reinforcement can be provided additionally, integrated in a pattern, or alternatively.
  • the remaining overlap region free of graining can then be overlapped optionally with a region carrying a graining, preferably a strip, of a reinforcement to be attached adjacently.
  • the visible surface formed jointly by the reinforcements could thus present a graining seamlessly and uninterruptedly.
  • An overlap region in the form of a strip could preferably have a width of approximately 10 cm, for example.
  • the method is characterised in accordance with the invention in the form of an independent solution to the problem addressed in that at least one structuring additive, preferably a structuring graining, can be applied to a carrier material, preferably a woven fabric or mesh, at least in one region, and can be connected to the carrier material by means of a binder.
  • at least one structuring additive preferably a structuring graining
  • the reinforcement can be finished by drying as soon as the graining has been applied to the reinforcement.
  • a method for creating a structured surface preferably on an outer surface of a building, preferably as part of an external thermal insulation composite system (ETICS), in which the structured surface preferably can be provided on a reinforcement plaster to be created with use of a reinforcement.
  • EICS external thermal insulation composite system
  • This method is characterised in accordance with the invention in the form of an independent solution to the problem addressed in that a reinforcement according to the invention, which preferably can be produced by the aforesaid method according to the invention, can be used.
  • This method is additionally characterised in accordance with a further embodiment in that the reinforcement can be pressed into and/or embedded in a plaster layer and the structuring additive, preferably the structuring graining, can then be moved around as desired, in particular in border regions of the reinforcement.
  • the structuring additive preferably the structuring graining
  • Fig- 1 in Fig. 1 a) schematically shows a view of a first exemplary embodiment of a reinforcement according to the invention in the form of a web material with a strip-like longitudinal structure formed from a graining, and in Fig. 1 b) schematically shows a plurality of reinforcement webs adjacently on a (hatched) plaster layer;
  • Fig. 2 in Fig. 2 a) schematically shows a view of a second exemplary embodiment of a reinforcement according to the invention in the form of a web material with a substantially chequered field structure formed from a graining, and in Fig. 2 b) schematically shows a plurality of reinforcement webs adjacently on a (hatched) plaster layer; and
  • Fig. 3 in Fig. 3 a) schematically shows a view of a third exemplary embodiment of a reinforcement according to the invention in the form of a web material with a strip-like transverse structure formed from a graining, and in Fig. 3 b) shows a plurality of reinforcement webs adjacently on a building facade with window openings.
  • Fig. 1 shows in Fig. 1 a) a view of a first exemplary embodiment of a reinforcement according to the invention in the form of web material with a strip-like longitudinal structure formed from a graining.
  • a reinforcement web 1 in this first exemplary embodiment comprises longitudinal strips 2 with a graining, which is indicated by dots.
  • the reinforcement web 1 also has strips 3 free from graining.
  • Another exemplary embodiment for example could be provided with a graining preferably over the entire area.
  • the reinforcement could also be provided in the form of sheet material, instead of web material.
  • At least one relatively narrow region or strip in particular in the case of sheets preferably at least two strips for parqueting of the sheets, could preferably be kept free of graining as overlap region 4.
  • This overlap region could be used in order to apply, in a manner overlapping it, a region or strip with or without graining belonging to the next, adjacent reinforcement web 1.
  • Fig. 1 b a plurality of reinforcement webs 1 according to Fig. 1 a) are arranged adjacently on a (hatched) plaster layer 5.
  • Fig. 2 shows in Fig. 2 a) a view of a second exemplary embodiment of a reinforcement according to the invention in the form of web material with a substantially chequered field structure formed from a graining.
  • the reinforcement web 1 has fields 6 with graining and fields 7 without graining.
  • a region or strip is again also provided at one border of the reinforcement web 1 as overlap region 4.
  • a plurality of reinforcement webs 1 are again arranged adjacently on a (hatched) plaster layer 5, this time in accordance with Fig. 2 b). Since the graining is intended to form the surface structure of the plaster layer 5, the graining here, as in Fig. 1 b), protrudes slightly from the plaster layer 5.
  • the plaster layer 5 is provided in all regions, however, and therefore it is shown hatched everywhere.
  • Fig. 3 shows a view of a third exemplary embodiment of a reinforcement according to the invention as web material with a strip-shaped transverse structure formed from a graining.
  • Fig. 3 a in contrast to the first exemplary embodiment according to Fig. 1 a), only transverse strips 8 with graining and transverse strips 9 without graining are provided.
  • a plurality of reinforcement webs 1 according to Fig. 3 a) are shown adjacently on a building facade.
  • a hatched plaster layer 5, in which the reinforcement webs 1 are embedded, is also provided here.
  • window openings 10 are indicated by way of example in the building facade and are incorporated in the facade design.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Finishing Walls (AREA)

Abstract

L'invention concerne un renfort, de préférence un tissu de renfort tissé, pour renforcer une couche de plâtre. L'invention concerne en outre un procédé de fabrication d'un renfort et un procédé de création d'une surface structurée.
PCT/EP2018/000475 2018-10-17 2018-10-17 Renfort pour renforcer une couche de plâtre WO2020078525A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18811709.7A EP3867209A1 (fr) 2018-10-17 2018-10-17 Renfort pour renforcer une couche de plâtre
PCT/EP2018/000475 WO2020078525A1 (fr) 2018-10-17 2018-10-17 Renfort pour renforcer une couche de plâtre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2018/000475 WO2020078525A1 (fr) 2018-10-17 2018-10-17 Renfort pour renforcer une couche de plâtre

Publications (1)

Publication Number Publication Date
WO2020078525A1 true WO2020078525A1 (fr) 2020-04-23

Family

ID=64564807

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/000475 WO2020078525A1 (fr) 2018-10-17 2018-10-17 Renfort pour renforcer une couche de plâtre

Country Status (2)

Country Link
EP (1) EP3867209A1 (fr)
WO (1) WO2020078525A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2208191A (en) 1938-01-17 1940-07-16 Kerr William Henri Construction of walls and partitions
US4259089A (en) * 1978-08-10 1981-03-31 Tyrolit Schleifmittelwerke Swarovski K.G. Grinding wheel containing grain-coated reinforcement fibers and method of making it
DE102005040090B4 (de) 2005-08-24 2007-07-19 Alsecco Gmbh & Co. Kg Aufputzsystem und Armierungsgewebe
US20100151757A1 (en) * 2008-12-16 2010-06-17 Saint-Gobain Technical Fabrics America, Inc. Polyolefin coated fabric reinforcement and cementitious boards reinforced with same
PT106194A (pt) * 2012-03-07 2013-09-09 Armandino Pelica Semedo Painéis modulares de isolamento térmico para revestimento exterior e respectivo método de montagem
EP2733272A1 (fr) 2012-11-15 2014-05-21 Knauf Marmorit GmbH Systèmes composites d'isolation thermique pour façades de bâtiment
US20140138007A1 (en) * 2010-12-10 2014-05-22 United States Gypsum Company Fiberglass mesh scrim reinforced cementitious board system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2208191A (en) 1938-01-17 1940-07-16 Kerr William Henri Construction of walls and partitions
US4259089A (en) * 1978-08-10 1981-03-31 Tyrolit Schleifmittelwerke Swarovski K.G. Grinding wheel containing grain-coated reinforcement fibers and method of making it
DE102005040090B4 (de) 2005-08-24 2007-07-19 Alsecco Gmbh & Co. Kg Aufputzsystem und Armierungsgewebe
US20100151757A1 (en) * 2008-12-16 2010-06-17 Saint-Gobain Technical Fabrics America, Inc. Polyolefin coated fabric reinforcement and cementitious boards reinforced with same
US20140138007A1 (en) * 2010-12-10 2014-05-22 United States Gypsum Company Fiberglass mesh scrim reinforced cementitious board system
PT106194A (pt) * 2012-03-07 2013-09-09 Armandino Pelica Semedo Painéis modulares de isolamento térmico para revestimento exterior e respectivo método de montagem
EP2733272A1 (fr) 2012-11-15 2014-05-21 Knauf Marmorit GmbH Systèmes composites d'isolation thermique pour façades de bâtiment

Also Published As

Publication number Publication date
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