EP0483539B1 - Procédé pour recouvrir les joints de matériaux - Google Patents

Procédé pour recouvrir les joints de matériaux Download PDF

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Publication number
EP0483539B1
EP0483539B1 EP91116909A EP91116909A EP0483539B1 EP 0483539 B1 EP0483539 B1 EP 0483539B1 EP 91116909 A EP91116909 A EP 91116909A EP 91116909 A EP91116909 A EP 91116909A EP 0483539 B1 EP0483539 B1 EP 0483539B1
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EP
European Patent Office
Prior art keywords
masonry
tape
materials
fabric
covered
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
EP91116909A
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German (de)
English (en)
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EP0483539A1 (fr
Inventor
Hansjörg Bischof
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.)
GRANOL AG
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GRANOL AG
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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
    • E04F13/042—Joint tapes

Definitions

  • the present invention relates to a method for preventing cracking on masonry respectively. on a masonry facade in the area of transitions of different materials resp. of materials with different properties such as tensile-elongation behavior, density, strength, swelling and shrinkage behavior and / or in overlying coatings, plastering or insulating layers; with an arrangement for bridging transitions of different materials in masonry to prevent crack formation in the area of this transition and / or in overlying coatings on the masonry, plaster or insulating layers; with an undilated material transfer in a masonry resp. in a masonry facade, as well as with an application of the method.
  • the most common method for solving this problem still consists of renovation, for example by knocking off the plaster in the area of the crack and bridging or cracking the crack using suitable renovation systems. is compensated with elastic materials, and then covered again with plastering.
  • the renovation systems offered are varied and more or less reliable. In any case, renovation can only ever be an auxiliary solution, and renovation does not meet the requirement that the cracks never appear.
  • FR-A-23 94 651 discloses a crack bridge on joints and cracks, which has an elastic, so-called Calicot tape overlapping the crack or the joint, which is combined with a plastic tape and is firmly connected.
  • this is primarily a remedial measure.
  • the plastic tape is firmly connected to the calicot tape on one side and is non-adhesive on the other side.
  • the disadvantage of this solution is that due to the non-diffusion ability of the plastic tape arranged over the joint or the crack on both long sides of this tape, adhesion problems of the cover layer containing the calicot tape occur due to increased moisture or diffusion.
  • the Calicot tape is a textile tape that was previously often used for the renovation of damaged plaster walls and to cover cracks, but which can hardly meet the current requirements in terms of pressure and tensile strength in crack bridging systems.
  • window lintel manufacturers have been recommending embedding so-called mesh fabric in the area of the lateral material transitions on the facade masonry.
  • the idea is to be able to absorb tensile stress from the ground. With longer lintel lengths, however, and especially in a mineral coating, these fabrics are of no use and cracks can be seen again. Wherever very thin roller shutter lintels, for example made of glass fiber reinforced concrete or fiber composite materials, are used, cracking occurs with a relatively high frequency.
  • a possible future crack formation on material transitions can be effectively prevented in a house facade, especially in the exterior plastering attached to the masonry or the house facade.
  • a method for preventing cracking on masonry is proposed. on a masonry facade in the area of transitions of different materials resp. of materials with different properties such as tensile-elongation behavior, density, strength, swelling and shrinkage behavior and / or in overlying coatings, plastering or insulating layers, according to which in the area of the material transition along and directly onto the transition there is essentially no or only weak on the masonry respectively.
  • on at least one of the materials adhering fabric-like sliding tape is arranged in such a way that an almost equally large strip of the materials is covered on both sides along the transition by the tape, and according to which the tape-like fabric and the masonry respectively.
  • the masonry facade is covered by coatings, plaster and / or insulation layers.
  • the band-like fabric and the masonry resp. the facade to the side of the fabric-like gliding tape is covered by a reinforcement layer, which is partly elastic, good adhesion to the surface and high strength or. Hardness.
  • a reinforcing fabric is arranged, at least in the region of the band-like fabric and overlapping on both sides, with good adhesion between the reinforcing fabric and the reinforcing layer.
  • the reinforcement fabric is embedded in the reinforcement layer when it is still “wet” and not hardened in order to achieve good adhesion.
  • the reinforcement fabric resp. to the side of it, the reinforcing layer can then be covered by at least one plastering layer, an insulation and / or other covering layer.
  • the fabric-like sliding tape arranged is preferably at least partially diffusible and rot-proof so that moisture can diffuse through it.
  • the fabric-like sliding tape can be, for example, a non-woven fabric or a so-called "non-woven” fabric, which can be made from plastic fibers, such as polyamide or polyester fibers, from glass fibers or another organic or mineral fiber.
  • plastic fibers such as polyamide or polyester fibers
  • glass fibers such as glass fibers or another organic or mineral fiber.
  • it can be additionally coated on at least one side with a suitable material.
  • a reinforcing layer is also provided, which is at least partially elastic, good adhesion to the substrate and high strength, respectively. Hardness.
  • the reinforcement layer be a mixture of a cement-bound mineral system to produce a high hardness or. Strength as well as a plastic-bound formulation, which is responsible for the production of a certain elasticity.
  • the cement-bound, mineral system can, for example, be a plastering system that includes a mineral binder, as well as mineral and organic additives that are characterized by optimal adhesive strength, sufficient water vapor permeability and good elasticity (low modulus of elasticity).
  • the plastic-bound formulation can, for example, be a water-based filler based on copolymers or terpolymers made from vinyl acetate, versatate, styrene acrylate, etc., with fillers including PVC, styrene or mineral or organic fibers.
  • the arrangement When introduced into the reinforcement layer, the arrangement preferably comprises a reinforcement fabric, with good adhesion between the reinforcement fabric and the reinforcement layer.
  • Coarse-mechanical glass fiber fabrics such as are used, for example, as so-called armor reinforcing fabrics, are suitable as reinforcing fabrics.
  • any materials can be used for reinforcing fabrics, such as steel fibers, mineral fibers, organic fibers such as Kevlar, aramid fibers, carbon fibers; it is essential that the used materials have a high modulus of elasticity.
  • the partially elastic reinforcement layer in which the different material properties are taken up at the transition of the masonry, respectively. should be absorbed, the necessary strength of the transition bridging should be achieved by means of the reinforcement fabric.
  • the arrangements mentioned according to the invention are particularly suitable for bridging the material transitions in the event of window or roller shutter lintels, as well as for bridging material transitions on the so-called wall base of house facades.
  • a material transition is shown, for example, on masonry, where the two materials 2 and 3 meet along this transition 1.
  • Material 2 can be reinforced concrete, for example, while material 3 comprises bricks.
  • the reinforced concrete 2, for example, may not yet have dried out completely, which means that a certain shrinkage can occur in the area of the concrete 2 over time.
  • the masonry in the area of the bricks 3 is essentially inert.
  • the tensile behavior of the two materials differs, for example, in strong sunlight. Because of this, it is clear that high stresses can occur in the area of the transition 1, which can easily lead to cracking in the masonry. Associated with this, as a result of the tensions, this can lead to cracks in the plaster above.
  • the transition 1 is now covered by means of a fleece-like sliding band 6 in such a way that the fabric-like sliding band covers the two materials along strips of almost the same size on both sides.
  • the fabric-like, fleece-like sliding tape 6 does not adhere or only weakly adheres to the substrates 2 and 3, it being entirely permissible for the tape to adhere at least in such a way that it is easy to assemble can be.
  • the liability must not be such that the tissue breaks when certain tensions occur in the area of the transition 1. In this case, the adhesion between the sliding band 6 and the substrate must be interrupted, both in the area of the material 2 and in the area of the material 3.
  • the reinforcing layer 8 is a mixture of a cement bound mineral system as well as a plastic-bound formulation. This formulation can be applied both as a 2-component system and as a 1-component mixture, which is applied with water and diluted to the required consistency.
  • the two components on the one hand ensure that the reinforcement layer adheres well to the masonry, has high strength and hardness, and has a certain elasticity.
  • This construction ensures that tensions in the area of the transition 1 are absorbed by the reinforcing layer along the entire width of the sliding band 6 between their side edges 7.
  • the collecting path is larger or smaller, so that the construction can be selected to suit the needs.
  • a reinforcement fabric 10 is arranged thereon, which may be made of glass fibers, for example, and has a relatively coarse mesh.
  • a reinforcement fabric 10 is, for example, under the name armor reinforcement fabric known.
  • the reinforcing fabric 10 can be arranged over the entire surface on or in the reinforcing layer, or at least in the region of the sliding band 6, wherein the reinforcing fabric 10 is preferably selected such that it projects laterally beyond the side edges 7 of the sliding band 6, respectively. this overlaps.
  • the sliding band 6 is laterally overlapped by approximately its width through the reinforcing fabric 10. The width of the overlap can be varied and essentially depends on the tensile forces to be absorbed.
  • a leveling compound 12 with a toothed trowel structure and an external plaster (not shown) can then be applied to the reinforcing fabric 10.
  • the toothed trowel structure is formed so that a cover layer to be applied to the compensation layer adheres better.
  • a material transition 21 is shown, which between a window or. Roller shutter lintel 22 and an outer facade masonry 23 is formed.
  • the roller shutter lintel 22 comprises the roller shutter box 22a on the inside.
  • High tensile and tensile stresses arise especially in the lateral material transition 21 and less in the longitudinal transition 21a arranged above the roller shutter box.
  • the transition 21 is again covered with a sliding tape 26, which in turn is covered by the reinforcement layer 28.
  • the reinforcement layer 28 is covered by a reinforcement or armor fabric 30, which in turn is covered by at least one further layer 32, which has horizontal grooves on its surface due to a toothed trowel.
  • the window lintel of FIG. 2 is shown schematically in FIG. 3 in a top view.
  • the side end respectively.
  • Material transition 21 of the lintel 22 is covered by the sliding band 26.
  • a sliding tape strip 26a is arranged covering the lintel support.
  • the reinforcing layer 28, which is not visible in the illustration according to FIG. 3, is arranged on the sliding band 26 and the masonry 23 underneath, as well as the window lintel 22.
  • the upper longitudinal end of the lintel can also be covered with a sliding band according to the invention, if this is necessary.
  • the reinforcement layer 8 used for the exemplary embodiments according to FIGS. 28 is a mixture of a cement-bound, mineral system, such as is used, for example, as a so-called leveling plaster, with a plastic-bound formulation, for example is used as a filler for crack repairs.
  • the mixture can also be presented as a 1-component dry mixture, which is mixed with water for the application.
  • a reinforcing fabric 10 respectively. 30 a coarse-meshed glass fiber fabric can be used, as is used, for example, as a so-called armor reinforcement fabric.
  • the structure of a material transition shown in FIGS. 1-3 can be changed in any way, or. be modified, it is essential that the material transition itself and strip-shaped parts on both sides of the transition is covered with a non-woven fabric that adheres only weakly or not at all to the substrate.
  • the fleece-like fabric is covered by a reinforcement layer which on the one hand adheres well to the substrate, has a certain hardness and is also at least partially elastic in order to compensate for tensions in the area of the transition along the width of the sliding band.
  • the arrangement is not limited to use in the area of a window or roller shutter lintel.
  • the illustrated structure of a transition bridging can be used at any point on a masonry or facade where stresses have to be absorbed. This can also be done, for example, in the area of the base of the wall, where, for example, reinforced concrete of the foundation meet with the brick masonry.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Finishing Walls (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Organic Insulating Materials (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Claims (14)

  1. Procédé pour empêcher la formation de fissures sur une maçonnerie ou une façade de maçonnerie dans la zone de jonctions (1, 21) entre des matériaux (2, 3 ; 22, 23) différents ou présentant des propriétés différentes comme le comportement de traction et de dilatation, la densité, la solidité et le comportement de gonflement et de retrait, et/ou dans des revêtements et couches de crépi ou d'isolation posés par dessus, caractérisé en ce qu'il est prévu, dans la zone de la jonction de matériaux (1, 21), le long de celle-ci et directement sur elle, une bande lisse en forme de tissu (6, 26) qui n'adhère pratiquement pas, ou que faiblement, à la maçonnerie ou à l'un au moins des matériaux, et qui est disposée de telle sorte que des franges des matériaux au moins approximativement de même taille soient couvertes par ladite bande, des deux côtés, le long de la jonction, et en ce que le tissu en forme de bande et la maçonnerie sont ensuite couverts par des revêtements, des couches de crépi et/ou d'isolation.
  2. Procédé de préférence selon la revendication 1, caractérisé en ce que le tissu en forme de bande (6, 26) et la maçonnerie (2, 3, 22, 23) ou la façade sont couverts, sur le côté du tissu en forme de bande, à l'aide d'une couche d'armature (8, 28) qui est au moins partiellement élastique et qui présente une bonne adhérence sur le substrat et une solidité ou une dureté élevées.
  3. Procédé de préférence selon la revendication 2, caractérisé en ce qu'un tissu d'armature (10, 30) est disposé dans la couche d'armature (8, 28), au moins dans la zone de la bande lisse en forme de tissu et de manière à chevaucher celle-ci au moins latéralement, étant précisé qu'une bonne adhérence doit être réalisée entre le tissu d'armature et la couche d'armature.
  4. Procédé de préférence selon la revendication 3, caractérisé en ce qu'un ou plusieurs autres revêtements tels qu'un crépi, une couche d'isolation et/ou une autre couche de recouvrement sont disposés sur le tissu d'armature (10, 30) ou, sur le côté de celui-ci, sur la couche d'armature (12, 13 ; 32, 33).
  5. Dispositif pour recouvrir des jonctions (1, 21) entre des matériaux différents (2, 3 ; 22, 23) sur une maçonnerie ou une façade de maçonnerie afin d'empêcher la formation de fissures dans la zone de cette jonction et/ou dans des revêtements, crépis ou couches d'isolation prévus sur la maçonnerie et posés par dessus, caractérisé en ce qu'il est prévu, posée dans la zone de la jonction (1, 21), le long de celle-ci et directement sur elle ainsi que sur des sections des deux matériaux (2, 3 ; 22, 23) en forme de franges et approximativement de même taille, le long de la jonction sur la maçonnerie, une bande lisse en forme de tissu (6, 26) qui n'adhère pratiquement pas ou que faiblement à la maçonnerie ou à l'un au moins des matériaux, et qui est couverte par au moins un revêtement prévu sur la maçonnerie ou la façade.
  6. Dispositif de préférence selon la revendication 5, caractérisé en ce que la bande lisse en forme de tissu (6, 26) permet au moins partiellement une diffusion et résiste au pourrissement.
  7. Dispositif de préférence selon l'une des revendications 5 ou 6, caractérisé en ce que la bande lisse en forme de tissu (6, 26) est un tissu du type non-tissé formé d'une fibre synthétique comme le polyamide ou le polyester, d'une fibre de verre ou d'une autre fibre.
  8. Dispositif de préférence selon l'une des revendications 5 à 7, caractérisé en ce que la bande lisse en forme de tissu (6, 26) et, sur le côté de celle-ci, la maçonnerie ou la façade sont couvertes à l'aide d'une couche d'armature (8, 28) qui adhère bien, qui est au moins partiellement élastique et qui présente une solidité ou une dureté élevées.
  9. Dispositif de préférence selon la revendication 8, caractérisé en ce que la couche d'armature (8, 28) comprend un mélange formé d'un système minéral à liant en ciment et d'une formulation à liant en matière synthétique.
  10. Dispositif de préférence selon l'une dès revendications 8 ou 9, caractérisé en ce que la couche d'armature (8, 28) est renforcée au moins dans la zone de la bande lisse en forme de tissu (6, 26) par un tissu d'armature (10, 30) qui chevauche au moins latéralement celle-ci.
  11. Dispositif de préférence selon la revendication 10, caractérisé en ce que le tissu d'armature (10, 30) est un tissu à grandes mailles formé d'un matériau présentant une solidité élevée ou un coefficient d'élasticité élevé, étant précisé qu'on envisage de préférence des fibres de verre ou d'acier, des fibres minérales ou des fibres organiques comme des fibres d'aramide, du Kevlar ou des libres de carbone.
  12. Jonction de matériaux non dilatée sur une maçonnerie ou dans une maçonnerie de façade crépie, comprenant au moins un dispositif selon l'une des revendications 5 à 11.
  13. Application du procédé selon l'une des revendications 1 à 4, pour empêcher la formation de fissures dans le cas de linteaux de volets roulants, dans ou sur une maçonnerie ou une façade de maçonnerie.
  14. Application du procédé selon l'une des revendications 1 à 4, pour empêcher la formation de fissures dans la zone du pied d'un mur, sur une façade de maison.
EP91116909A 1990-10-29 1991-10-04 Procédé pour recouvrir les joints de matériaux Expired - Lifetime EP0483539B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3435/90 1990-10-29
CH343590 1990-10-29

Publications (2)

Publication Number Publication Date
EP0483539A1 EP0483539A1 (fr) 1992-05-06
EP0483539B1 true EP0483539B1 (fr) 1995-01-18

Family

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EP91116909A Expired - Lifetime EP0483539B1 (fr) 1990-10-29 1991-10-04 Procédé pour recouvrir les joints de matériaux

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EP (1) EP0483539B1 (fr)
AT (1) ATE117398T1 (fr)
DE (1) DE59104316D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006032437A1 (fr) * 2004-09-23 2006-03-30 Jupiter Gmbh Procede pour eriger un plafond ou une paroi en plaques de gypse

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2702198A1 (de) * 1977-01-20 1978-07-27 Basf Farben & Fasern Oberflaechenveredeltes bauelement
FR2394651A1 (fr) * 1977-06-17 1979-01-12 Dufour Et Fils Anc Ets Marius Dispositif permettant de realiser le pontage des joints ou fissures en une seule operation et son procede d'application
FR2407317A1 (fr) * 1977-10-28 1979-05-25 Lebret Sedel Ets Bande couvre-joint

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Publication number Publication date
ATE117398T1 (de) 1995-02-15
DE59104316D1 (de) 1995-03-02
EP0483539A1 (fr) 1992-05-06

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