EP3665340B1 - Tissu de renfort pour renforcer une couche de rendu - Google Patents

Tissu de renfort pour renforcer une couche de rendu Download PDF

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Publication number
EP3665340B1
EP3665340B1 EP17761007.8A EP17761007A EP3665340B1 EP 3665340 B1 EP3665340 B1 EP 3665340B1 EP 17761007 A EP17761007 A EP 17761007A EP 3665340 B1 EP3665340 B1 EP 3665340B1
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EP
European Patent Office
Prior art keywords
reinforcing fabric
reinforcing
spacer
region
spacers
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.)
Active
Application number
EP17761007.8A
Other languages
German (de)
English (en)
Other versions
EP3665340A1 (fr
Inventor
Thomas Wieczorek
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.)
Knauf Gips KG
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Knauf Gips KG
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Publication date
Application filed by Knauf Gips KG filed Critical Knauf Gips KG
Publication of EP3665340A1 publication Critical patent/EP3665340A1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04—Bases for plaster
    • E04F13/047—Plaster carrying meshes

Definitions

  • the invention relates to a reinforcing fabric which can be rolled up and unrolled in the manner of a sheet for reinforcing a render layer, wherein the reinforcement has elongate spacers, preferably spacer profiles, which preferably extend substantially approximately parallel to one another and at a distance from one another in the and/or along the the reinforcing fabric and which, including the reinforcing fabric, predetermine a minimum layer thickness for the render layer.
  • This document describes a reinforcing mesh for reinforcing wall renders, said mesh being intended to be arranged approximately in the outer third of the render thickness and for this purpose having spacers which fix the relative position of the reinforcing mesh plane with respect to the surface to be rendered.
  • the spacers are elongate profiles which are oriented parallel to the reinforcing mesh plane, extend parallel to one another and have a cross section which corresponds to the desired distance from the surface to be rendered, said profiles forming a structural unit with the reinforcing mesh.
  • a comparable reinforcing fabric in particular with spacers woven in a cord-like manner into the fabric, is disclosed in DE 10 2005 040 090 A1 .
  • the spacers are round solid profiles in their cross section, in particular being dimensionally stable. This is advantageous in order to accomplish a reliable spacing function.
  • the object on which the invention is based is to improve the ease of handling and in particular the transportability of a reinforcing fabric having spacers.
  • the invention has thus identified in a surprising and inventive manner that a conflict of goals with the roll-up capability and the transportability and the space-saving storage of the known reinforcing fabrics is precisely based in the reliable dimensional stability of the spacers.
  • the inventive solution advantageously affords better compatibility between roll-up capability and reliable spacing.
  • a first optional arrangement results in a reinforcing fabric which is characterized by material cut-outs, preferably notches, arranged over the longitudinal extent of the spacers, preferably at regular distances from one another.
  • the notches preferably resulting in a serrated spacer lath, considerably facilitate rolling-up of the reinforcing fabric.
  • the, preferably dimensionally stable, material projections which delimit the notches or other material cut-outs are completely adequate for ensuring a reliable spacing function.
  • the teeth are preferably even better suited to penetrate into the render compound up to the surface to be rendered and to be directly supported there if the reinforcement, which is usually the case, is pressed and placed into a first render layer.
  • a spacer according to the invention can be produced, for example, from polyvinyl chloride, a material which can be easily connected, in particular to a fabric material, using different connecting techniques.
  • An alternative or, where appropriate, also additional embodiment of the invention is characterized in the spacers having a variable cross-sectional profile in the direction of the application thickness of the render, the application thickness extending approximately perpendicularly to the reinforcing plane.
  • a roll of a usually relatively thin reinforcing fabric with spacers can, as a result of the additional radial projection of the spacers, have a much greater diameter than a reinforcing fabric without spacers, which makes it considerably more difficult to handle, transport and store a generic reinforcing fabric with spacers.
  • Such a spacer according to the invention can be realized for example in that it has a hollow cross section which is produced from a material which is flexible to a certain degree but which straightens up or spreads up stiffly again in a resilient manner in such a way that the spacer can be squashed together during forceful rolling-up and unfolds again with the reinforcement unrolled, it being pointed out that, during rendering, preferably by spreading, no excessive force is exerted on the spacer in the direction of the surface to be rendered, because precisely a uniform minimum layer thickness is to be achieved.
  • a spreading force is readily withstood by the spacer according to the invention with correct shape and material setting without impairing its reliable spacer function.
  • the cross-sectional profile of the spacer having at least one region which can be folded over or unfolded to lie flat approximately parallel to the reinforcement fabric.
  • a region of the spacer according to the invention can be substantially laid flat for rolling-up by being unfolded or folded over.
  • this region preferably straightens up automatically again.
  • the foldable region is of substantially lath-shaped design.
  • the cross-sectional profile of the spacer according to the invention can have approximately an L shape when the reinforcing fabric is unrolled.
  • the base of the L shape can, in a particularly simple manner, be applied flat as a strip to the reinforcement, in particular a reinforcing fabric, and be connected thereto.
  • the lath or second leg of the L shape then projects approximately perpendicularly to the spacing. To roll up the reinforcement, this upright lath can be unfolded, folded over or flat under a certain force loading, to be precise over the L base or, better and flatter still, in a plane next to the L base.
  • the foldable region is designed or arranged for automatic straightening-up.
  • the region itself can thus straighten up automatically when unrolling the reinforcement and/or its connection region, that is to say as it were an articulated or hinge region, could be correspondingly designed so as, for example, to prestress the foldable region in the straightening-up direction.
  • a hinge region in particular with the use of plastic, this can occur, for example, precisely contrastingly to a film hinge.
  • a film hinge with a certain material weakening facilitates unfolding or folding over while, for example, a thickening which is bead-shaped or sausage-shaped for example can make unfolding or folding over more difficult but nevertheless allow it, and, on the other hand, can also favour or assist and promote straightening-up again.
  • a further embodiment of the invention is characterized in that at least the foldable region and/or a connection region for the foldable region is formed from a so-called memory material.
  • metal alloys having the desired properties which, in particular, if desired, can also be used incorporated into a plastics material.
  • plastics in particular polymers, which themselves show such properties.
  • the reinforcement according to the invention can, as already mentioned above, be characterized by at least the foldable region and/or a connection region for the foldable region being formed from a flexible intrinsically resilient material.
  • the material for at least one sub-region of the spacer can be a plastic, preferably PVC.
  • Figure 1 shows a basic, enlarged section through a substrate 1 with a surface to be rendered with a render layer 2 comprising a reinforcement 3 according to the invention.
  • the reinforcement 3, in particular a reinforcing fabric, has spacers 4 which are arranged at regular distances from one another and which extend parallel to one another, said spacers being substantially designed as L profiles, preferably extending substantially along the whole breadth or length of the fabric web.
  • the substrate 1 is only indicated and moreover illustrated in interrupted form.
  • the reinforcement 3 is inserted or pressed into the render layer 2, to be precise preferably in such a way that the reinforcement is situated approximately in the outer third of the layer thickness of the render layer 2.
  • the spacers 4 could preferably predetermine a minimum layer thickness of approximately 5 mm between reinforcement 3 and substrate 1, and the render layer thickness above or on the outside of the reinforcement 3 could still be approximately 2 mm.
  • a render layer 2 (in particular a reinforcing mortar) of preferably approximately 5 to 7 mm is applied, manually or mechanically, to the substrate 1.
  • the reinforcement 3, in particular a reinforcing fabric, is cut to length, that is to say in particular suitably measured and correspondingly cut off, and, with the spacers 4 ahead, positioned on and pressed into the render layer 2.
  • a batten is then used so that the reinforcement 3 with its spacers 4 can be pressed and embedded further and flat into the render layer 2 until the spacers 4 bear or butt against the surface of the substrate 1.
  • the render is struck off on the strike-off lines formed by the spacers 4, with the result that a minimum material covering over the reinforcing web remains, with excess material being removed.
  • render or mortar is, where appropriate, applied subsequently (additionally) and struck off again.
  • the alkalinity, the fire behaviour, the hygrothermal loadability, etc. can in particular also be taken into account in an advantageous manner.
  • Figure 2 shows a further enlarged end view or cross section of a spacer 4 according to the invention for a reinforcement 3 as shown in Fig. 1 , in the erected position.
  • the spacer 4 has substantially an L shape which is formed by a base leg 5, a spacer leg 6 and a hinge joint 7 connecting both legs 5, 6.
  • the base leg 5 lies flat against the reinforcing fabric of the reinforcement 3 and is fixedly connected thereto, for example by adhesive bonding, stitching, welding or the like.
  • the spacer leg 6 ensures the correct distance between the reinforcement 3 and the substrate 1 to be rendered.
  • Figure 3 shows the spacer 4 as shown in Fig. 2 , in the laid-flat position.
  • the spacer leg 6 is unfolded from its functional position flat into the plane of the base leg 5 so as to be aligned therewith.
  • the reinforcing fabric can be rolled up in a space-saving manner, it being the case that the flat spacer 4 can be rolled up too.
  • the hinge joint 7 allows this unfolding or folding over of the spacer leg 6, but at the same time provides for a pre-stressing which is aimed at automatically straightening up the spacer leg again into the functional position in the direction of the arrow 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Reinforcement Elements For Buildings (AREA)

Claims (8)

  1. Tissu de renfort (3) destiné à renforcer une couche d'enduit (2), dans lequel le tissu de renfort (3) a des entretoises allongées (4), de préférence des profils d'entretoise, qui s'étendent approximativement parallèlement les unes aux autres et à distance les unes des autres dans ou sur le tissu de renfort (3) et qui, y compris le tissu de renfort (3), prédéterminent une épaisseur d'application minimale pour la couche d'enduit (2), les entretoises (4) ayant une conception favorisant l'enroulement qui est néanmoins fiable pour leur fonction d'espacement, caractérisé en ce qu'un profil de section transversale de l'entretoise (4) est replié ou comprend au moins une région qui peut être dépliée pour reposer à plat approximativement parallèlement au tissu de renfort (3) et cette région pliable étant conçue ou disposée pour un redressement automatique lors du déroulement du tissu de renfort (3).
  2. Tissu de renfort (3) selon la revendication 1, caractérisé par des découpes de matière, de préférence des encoches, disposées sur l'étendue longitudinale des entretoises (4), de préférence à des distances régulières les unes des autres.
  3. Tissu de renfort (3) selon la revendication 1 ou 2, dans lequel les entretoises (4) ont un profil de section transversale variable dans la direction de l'épaisseur d'application, l'épaisseur d'application s'étendant approximativement perpendiculairement à un plan de renfort.
  4. Tissu de renfort (3) selon la revendication 3, dans lequel la région pliable est de conception sensiblement en forme de latte.
  5. Tissu de renfort (3) selon la revendication 4, dans lequel le profil de section transversale de l'entretoise (4) a approximativement une forme en L lorsque le tissu de renfort est déroulé.
  6. Tissu de renfort (3) selon la revendication 5, dans lequel au moins la région pliable et/ou sa région de liaison est formée d'un matériau dit à mémoire.
  7. Tissu de renfort (3) selon l'une des revendications précédentes, dans lequel au moins la région pliable et/ou sa région de liaison est formée d'un matériau souple intrinsèquement élastique.
  8. Tissu de renfort (3) selon la revendication 7, dans lequel le matériau pour au moins une sous-région de l'entretoise (4) est une matière plastique.
EP17761007.8A 2017-08-10 2017-08-10 Tissu de renfort pour renforcer une couche de rendu Active EP3665340B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2017/000969 WO2019029780A1 (fr) 2017-08-10 2017-08-10 Renfort, de préférence tissu de renfort, pour renforcer une couche de rendu

Publications (2)

Publication Number Publication Date
EP3665340A1 EP3665340A1 (fr) 2020-06-17
EP3665340B1 true EP3665340B1 (fr) 2022-04-06

Family

ID=59745864

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17761007.8A Active EP3665340B1 (fr) 2017-08-10 2017-08-10 Tissu de renfort pour renforcer une couche de rendu

Country Status (3)

Country Link
EP (1) EP3665340B1 (fr)
JP (1) JP7003216B2 (fr)
WO (1) WO2019029780A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005040090A1 (de) * 2005-08-24 2007-03-01 Alsecco Gmbh & Co. Kg Aufputzsystem, Armierungsgewebe und dessen Verwendung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR334384A (fr) * 1903-08-04 1903-12-19 John Henry Murphy Matériel pour retenir le platre et autres matières similaires
US1802779A (en) * 1927-08-01 1931-04-28 William H Quade Plaster and stucco reenforcing base
US1703560A (en) * 1927-09-22 1929-02-26 Economy Products Corp Lath-spacing nail
JPS5552447A (en) * 1978-10-13 1980-04-16 Zuibai Ri Method of making reinforced antiifire wall of small weight
JPS63831Y2 (fr) * 1980-02-06 1988-01-11
DE3926366A1 (de) 1989-08-04 1991-02-14 Anton Mueller Vorrichtung zum bewehren von mauerputzen
US20070051069A1 (en) * 2005-09-07 2007-03-08 Benjamin Obdyke Incorporated Composite Building Material for Cementitious Material Wall Assembly

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005040090A1 (de) * 2005-08-24 2007-03-01 Alsecco Gmbh & Co. Kg Aufputzsystem, Armierungsgewebe und dessen Verwendung

Also Published As

Publication number Publication date
EP3665340A1 (fr) 2020-06-17
JP2020529537A (ja) 2020-10-08
JP7003216B2 (ja) 2022-01-20
WO2019029780A1 (fr) 2019-02-14

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