EP2470732A1 - Treillis d'armature pour une couche de mortier ou de mortier projeté armée sur une base, procédé de pose associé et revêtement de mortier armé ainsi obtenu - Google Patents

Treillis d'armature pour une couche de mortier ou de mortier projeté armée sur une base, procédé de pose associé et revêtement de mortier armé ainsi obtenu

Info

Publication number
EP2470732A1
EP2470732A1 EP10744836A EP10744836A EP2470732A1 EP 2470732 A1 EP2470732 A1 EP 2470732A1 EP 10744836 A EP10744836 A EP 10744836A EP 10744836 A EP10744836 A EP 10744836A EP 2470732 A1 EP2470732 A1 EP 2470732A1
Authority
EP
European Patent Office
Prior art keywords
mortar
reinforcing mat
layer
reinforced
mat
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Withdrawn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
EP10744836A
Other languages
German (de)
English (en)
Inventor
& P Clever Reinforcement Company Ag S
Original Assignee
S&P Clever Reinforcement Co 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
Priority claimed from CH13352009A external-priority patent/CH701700A2/de
Priority claimed from CH762010A external-priority patent/CH702583A2/de
Application filed by S&P Clever Reinforcement Co AG filed Critical S&P Clever Reinforcement Co AG
Publication of EP2470732A1 publication Critical patent/EP2470732A1/fr
Withdrawn legal-status Critical Current

Links

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
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/242—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads inorganic, e.g. basalt
    • D03D15/267—Glass
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D9/00—Open-work fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
    • 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
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2101/00—Inorganic fibres
    • D10B2101/10—Inorganic fibres based on non-oxides other than metals
    • D10B2101/12—Carbon; Pitch
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/02—Cross-sectional features
    • D10B2403/024—Fabric incorporating additional compounds
    • D10B2403/0241—Fabric incorporating additional compounds enhancing mechanical properties
    • D10B2403/02411—Fabric incorporating additional compounds enhancing mechanical properties with a single array of unbent yarn, e.g. unidirectional reinforcement fabrics
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/02—Reinforcing materials; Prepregs
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/20—Industrial for civil engineering, e.g. geotextiles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49982—Coating
    • Y10T29/49986—Subsequent to metal working
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
    • Y10T442/102—Woven scrim
    • Y10T442/103—Including a multifilament fiber precoated with other than free metal or alloy prior to weaving
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
    • Y10T442/102—Woven scrim
    • Y10T442/107—Comprising at least two chemically different fibers

Definitions

  • the invention relates to a reinforcing mat for a reinforced mortar or Spritzmörtel für, as well as the method for installing such a reinforcing mat to achieve a reinforced mortar coating, especially on concrete surfaces.
  • Mortar coatings with reinforcements are widely used, inter alia, in the repair of structures of various kinds, especially of crack-affected concrete surfaces in civil engineering, especially in tunneling.
  • the fiber bundles are at least partially open for the penetration of flowable or pasty material, which hardens later.
  • the individual fibers of the strands are thereby embedded in the material and enclosed.
  • the mesh size is given as approx. 12mm and the tear strength as at least 20 kN / m, with a maximum elongation at break of 5%.
  • fibers that can absorb high tensile forces especially carbon fibers are suitable.
  • the costs of such carbon fibers are very high and are around CHF 30 per kg. Glass or polyester fibers cost only about CHF 1.50 per kg and are therefore cheaper by a factor of 20.
  • Hybrid gratings which comprise carbon fibers in a first direction and aramid fibers in the transverse direction thereto.
  • the Aramidfasem are however even more expensive than the carbon fibers, about twice as expensive, and therefore run such hybrid lattice contrary to the desire to achieve the highest possible cost as strong reinforcements, and only use carbon fibers so that they are really in a come on train loaded direction used.
  • the object of the invention is therefore to provide a reinforcement mat for a reinforced mortar or Spritzmörtel für on a substrate and a method for their installation, said reinforcing mat should be suitable for receiving large tensile forces in a particular direction for a strong reinforcement and At the same time, it should offer a decisive cost advantage over known reinforcement nets.
  • this reinforcing mat should be particularly resistant and thus long-lasting in a special version against alkaline components of the leveling layer or covering layer, in particular over Ca 3 Al 2 contained in the cement. Nevertheless, this reinforcement mat should be easily applied and installed on site at the construction site. It is also an object of the invention to provide a prepared by the process reinforced mortar coating with end anchoring in indicate solid ground.
  • a reinforcing mat for a reinforced mortar or Spritzmörtel harsh on a pad which is characterized in that the reinforcing mat encloses only in an excellent direction extending carbon fibers, which together with polyester or glass fibers in one or run in several other directions, forming a fabric, a scrim or a knit, which has a mesh size of at least 10mm, wherein the carbon fibers used each have a tensile modulus of more than 200 Giga-Pascal.
  • the object is further achieved by a method for installing a reinforcing mat according to claim 1 to 8 for creating a reinforced mortar or sprayed mortar layer on a substrate of predominantly concrete, renssch ridden with the following procedural:
  • a reinforced mortar coating created by the method according to claim 14, which is characterized in that its reinforcing mat is secured at least on one side of its tensile load by means anchored in the ground by means of dowels corrosion-resistant profile, which profile at least once wrapped by the reinforcement mat.
  • the reinforcing mat is shown in various embodiments and below their structure and their installation for creating a reinforced mortar or Spritzmörtel harsh described and explained. It shows:
  • Figure 1 A reinforcing mat as a fabric with carbon fibers running only in an excellent direction
  • Figure 2 A reinforcing mat as a scrim with only in an excellent direction extending carbon fibers
  • FIG. 3 shows a reinforcing mat as a knitted fabric with carbon fibers extending only in an excellent direction
  • Figure 4 A reinforcing mat rolled for storage and transport
  • FIG. 5 shows a reinforced sprayed mortar layer on a wall shown in perspective, in a cross section
  • FIG. 6 an end anchoring by means of an end anchoring profile
  • FIG. 7 An end anchoring of the reinforcement mat by means of
  • FIG. 1 is shown in a first variant, as this reinforcing mat 11 may be executed. It is a tissue.
  • the warp yarns 1 are made of "continuous" carbon fibers, while in the process of making the fabric, the weft yarns 2 are transversely introduced, in the form of inexpensive glass fibers or polyester fibers,
  • the fabric can be rolled up into a roll and the carbon or carbon fibers then run always in only one excellent direction, namely in the unwinding direction, while the fabric stabilizing cheap fibers run transversely to the direction of unwinding of such a fabric roll, so that the expensive carbon fibers are used only in an excellent direction compared to conventional reinforcing mats, namely in the direction of in which the tissue later is effectively claimed on train. In all other directions, only far cheaper stabilizing fibers are used.
  • the carbon fibers are so high tensile strength and offer train E modules from 230 to 240 Giga Pascal. These fibers are called rovings. They are fiber bundles or fiber strands of endless, untwisted, stretched fibers (filaments). If single filaments made of glass, aramid or carbon are summarized without rotation, one speaks first of a smooth filament yarn, and from a certain strength (fineness> 68 tex) of a roving. Such rovings are named after their filament count or their length weight (Tex number). For the filament designation, the number is given in full 1000 filaments (1k). Typical delivery forms are: 1k (1000 filaments), and also 3k, 6k, 12k and 24k filaments. The Tex number has the unit g / km.
  • the laid-in weft woven glass or polyester fibers can thereby alternately run over the approximately 1.6cm spaced apart warp fibers 1 made of carbon fibers and drive under, or two or more warp threads run over 1 and afterwards undercut again two or more warp threads 1 to to minimize their bending.
  • the next following weft thread 2, so the next parallel running fiber can also drive under two or more warp threads 1 made of carbon fiber in the shot and afterwards run over the same number of warp fibers 1 again.
  • the changes from running over to driving under the warp threads 1 can be offset from shot to shot to the stability of the To increase tissue.
  • the tissue is subsequently coated, as will be described later.
  • the main advantage of such a reinforcing mat 11 is that the train-arm ierenden carbon fibers extend exclusively in the direction necessary for this purpose, namely in the direction of the warp threads 1 of the fabric, and in other directions, which are not claimed on the building to train, be completely saved.
  • the same cost for the carbon fibers thus twice as many carbon fibers can be used in Wer-Armleitersraum, that is compared to a reinforcing mat 11, in which, as is conventionally practiced all fibers are made of carbon fibers, smooth half of the same can be saved and by cheap polyester or glass fibers, which are completely sufficient for the stress in the transverse direction to the train reinforcement. They only have the function of holding the carbon fibers in place until the mortar is installed and cured.
  • FIG. 3 shows a reinforcing mat 11 in the form of a knitted fabric 6 as a carrier for the pull-reinforcing carbon fibers 3, which then run only in an excellent direction.
  • Such knitted fabric 6 is available in mat form and has irregularly large voids or passages of a few to a few millimeters in size.
  • the individual carbon fiber sections 3 can be placed parallel to each other on such a knitted fabric 6 and laminated, or parallel to each other through the flat lying fabric 6 are plugged so that they are held in place by frictional force.
  • the knit 6 thus serves only to hold the Switzerlandarmierenden carbon fiber sections 3 until this reinforcement mat 11 is installed in the hardening mortar.
  • a reinforcement mat 11 produced in this way can be rolled around the course axis of the weft threads 2 contained in it, running parallel to one another, that is to say the plastic fibers.
  • the transverse thereto extending carbon fibers 3 and the warp threads 1 can be rolled up virtually endless and thus almost any length of reinforcing mats 11 can be made with the train-armoring carbon fibers 3 running in their longitudinal direction.
  • These rollers 8 offer the advantage that they can be compactly stored and transported.
  • Figure 5 shows a sprayed mortar layer on a wall 7, which is shown in perspective, wherein its structure is shown in front of the picture in a cross section, and wherein said sprayed mortar layer is reinforced with an inventive reinforcement mat 11.
  • the base 9 to be finished which consists predominantly of concrete, is first roughened by means of sand blasting, by means of water-jet machining or by means of milling. Thereafter, the application of a leveling layer 10 made of cementitious mortar on this roughened surface.
  • a plastic-coated cementitious mortar can be used.
  • the application of this leveling layer 10 from 0.5 cm to 1 cm thickness can be done by wet or dry spraying, or the mortar is applied manually or by machine.
  • the wet mortar is pumped by means of a pump in a hose to a nozzle where, with the addition of compressed air, the mortar is accelerated and sprayed on.
  • the mortar is dry and powdered pumped to the nozzle, where then pressurized water is added, and the mortar is detected by the water jet injected at high speed on the surface to be coated, which is mainly used in tunneling.
  • the cover layer 12 is produced again by manually applying or mechanically spraying identical cementitious mortar onto the still wet, not yet set armored leveling layer 10. Overall, then the total thickness of such a created Spritzmörtel für of leveling layer 10 and top layer 12 is about 0.5cm - 3.0cm.
  • the reinforcing mat 11 may additionally be mechanically fastened to the base 9 by means of holding nails 13 when it is laid in the leveling layer 10.
  • the setting of the retaining nails 13 is advantageously carried out pneumatically, by means of a compressed air system.
  • the carbon fibers 3 used may be open carbon fiber bundles, so that their fiber interstices and capillaries are therefore not filled by binders or adhesives or are blocked.
  • the flowable or paste-like coating composition that is normally the concrete or plastic-coated mortar penetrate into the fiber interstices and form a micro-toothing after curing with the fiber structure, i. create a highly effective form fit.
  • the adhesion promoter is expediently chosen in its composition so that it simultaneously causes an increase in the capillary action and thus supports the penetration of the coating material into the fiber interstices.
  • the fiber material of the reinforcing mat can be protected against attack by aggressive, especially alkaline components of the leveling layer or cover layer, in particular against Ca 3 A ⁇ contained in the cement .
  • a reinforcement mat whether it is a fabric, a scrim or a knit, can be equipped with a special coating for this purpose.
  • Styrene-butadiene rubber SBR is particularly suitable, this abbreviation being derived from the English term "Styrene Butadiene Rubber.” It is a copolymer of 1,3-butadiene and styrene.
  • SBR usually contains 23.5% of styrene and .alpha 76.5% butadiene At higher styrene content, the rubber becomes thermoplastic but remains crosslinkable, so if the reinforcement mat is soaked in an SBR bath, all the fibers are intimately encased in this latex-type synthetic rubber and are free of any chemicals present in the cement Moreover, it is very advantageous if, during the coating process, it is sprinkled with amorphous silicate (fly ash) after leaving the bath, or if such fly ash is added to the bath, so that the Excess lime Ca of the lime mortar with the SiO 2 of the fly ash to a calcium silicate hydrate connects un d such an increased adhesion in the mortar is created by a resulting effective gearing.
  • amorphous silicate fuly ash
  • such a reinforcement mat 11 is rolled off the roll in the form of a braid or fabric or knitted fabric on the preparatory leveling layer 10, and indeed - and this is very important - running in the carbon fibers 3 in that direction, in which the sprayed mortar layer is subjected to tension.
  • the used spray mortar may be suitable for the hard base concrete, or on the other hand can plaster for soft substrates such as masonry Bricks, limestone, resp. historic buildings are used.
  • Reinforcing mats of the inventive type have a high tensile strength, but are easy and labor-saving to cut, lay and fasten. They are adaptable in terms of the substrate shape and can even be folded harmlessly at edges and corners.
  • a cover layer 12 is applied, which also consists of sprayed mortar or plaster and can be applied in a similar manner as the leveling layer.
  • the cover layer 12 forms the outer end of the coating.
  • a further layer can be equipped with reinforcing mats, or even a plurality of the same can be provided, for example with a certain protective function.
  • the cover layer often has a thickness between 5 and 30 mm in practice.
  • the reinforcing mats presented here can be anchored end-to-end in various ways. In some applications, the reinforcement mats are wrapped around an object, such as a pillar, or they are laid around corners. On flat surfaces, a sufficient overlap with a firm base is carried out for anchoring, so that the reinforcement mat is embedded over a sufficient area in the sprayed mortar.
  • a conventional reinforcing mat which has carbon fibers in the transverse direction, must be overlapped with the solid surface at least over 65cm (without safety values), ie with safety values about 100cm, so that the forces can be transferred into the mortar. Since grid tracks are produced in widths of 1.5 - 4 m, this overlap is very high and means large material losses. Especially these often necessary large overlaps show that then the carbon fibers, which are embedded transversely to the pulling direction, functionally lost and still cost a lot of money.
  • the presented reinforcement mat with unidirectional a great saving exclusively in the later direction of the tensile force carbon fibers.
  • several layers of reinforcing mats are laid, which are each end brought to an overlap with the solid ground, so that the savings even multiplied.
  • FIG. 6 In order to strengthen the end anchoring, if about the place for a large-scale end-side embedding missing, special anchoring elements can be laid.
  • Such an end anchorage is shown in Figure 6 in a cross section. This consists of a profile 8, which is embedded in the sprayed mortar layer 10 after this profile 8 has been wrapped by the reinforcing mat 11 one or more times. It is best to use a profile 8 made of corrosion resistant material, such as a composite material or aluminum and of about 8mm thickness and 40mm width, which can then be cut and laid in handy sections of any length. The edges of these profiles 8 should not fall below a radius of 2mm, so that the carbon fibers 3 are not bent too much.
  • a layer of sprayed mortar 10 on the substrate 9, that is applied to the support base and the reinforcement mat 11 is applied to the still soft, wet sprayed mortar 10 and fixed, where necessary with nails 13.
  • the profile 8 in the Curled end portion of the reinforcement mat 11 and the mat is tensioned afterwards.
  • the profile 8 has holes 15 through which a concrete dowel 14 is then placed in the base 9 in order to anchor the profile 8 firmly to the support base, while tensioning the reinforcement mat 11.
  • the wrapped profile 8 is completely overmoulded with sprayed mortar 10, so that it is then firmly embedded in the same, in addition to its mechanical anchoring in the base 9.
  • a reinforcing mat with a fiber weight of 200 g / m and a tensile strength (break) of 4300 N / mm 2 was placed in a third sprayed mortar plate, and then sprayed again with 2 cm and then again laid in such a reinforcement mat, and this then over-injected with another 4cm to a thickness of the mortar plate of 8cm.
  • These three specimens were stored dry for 28 days. Then their working capacity was measured, that is, the integral of the deflection with increasing load to break (force times way).
  • the steel reinforcement yielded 800 joules, the variant with a single reinforcing mat 626 joules, and those with two reinforcing mats 1064 joules.
  • the anchoring of the reinforcing nets in these spray mortar plates is too low because of their small size.
  • the anchoring area is a multiple.
  • a work volume of 1000 to 1200 Joule can be expected with a single reinforcement mat, at least considerably more than with a steel reinforcement with a grid of 0 6mm steels and a mesh size of 150mm!
  • such a reinforcement mat is much lighter and much easier to lay than a steel reinforcing mesh.
  • the durability of the reinforcement mat in the sprayed mortar is virtually unlimited, especially if it is SBR-coated, as opposed to a steel reinforcement, where corrosion is always an issue.
  • a hard sprayed mortar is not desirable on a soft base (masonry).
  • the sprayed mortar serves to introduce the forces from the carbon fiber reinforcement into the supporting base.
  • the introduction of forces into the base is only possible if the tensile strength of the base is strong enough.
  • the tensile strength of the base is decisive for how much Glaskarfte can be initiated because the tensile forces of the sprayed mortar and the connecting joint are normally always higher than those of the base. Accordingly, the spray mortar is matched to the quality of the base.
  • the tensile strength of concrete determined with a Haftzug réelle, is usually 1.2 - 5.0 N / mm 2 .
  • the tensile modulus of a concrete is usually between 20-35 GPa.
  • a cement-based spray mortar modified with synthetic fibers and / or other additives is used on this hard base.
  • the sprayed mortar has the following quality characteristics: Tensile strength 3 - 10 N / mm 2 , tensile elastic modulus 20 - 30 GPa.
  • the tensile strength of the masonry determined with a Haftzug réelle, on the other hand is usually> 0.3 - 1.0 N / mm 2 .
  • a spray mortar based on cement or lime with appropriate additives is used accordingly.
  • this sprayed mortar has the following quality characteristics: tensile strength 1 - 5 N / mm 2 , tensile modulus 8 - 20 GPa. Particularly sensitive must be handled with historical masonry. This usually has a tensile strength of just over 0.3 N / mm 2.
  • a spray mortar based on hydraulic lime is used with appropriate additives accordingly.
  • this sprayed mortar has the following quality characteristics: tensile strength 0.5 - 3 N / mm 2 , tensile modulus 2 - 15 GPa.
  • the anchoring element in Shape of a profile 8 made of aluminum or composite material is wrapped in the edge region of the reinforcing mat 11 and afterwards anchored to the solid substrate 9, be it concrete, wood or steel, with strong dowels 14 or screws.
  • This anchoring initiates forces solely by the additional contact pressure.
  • an anchoring element preferably a perforated aluminum profile
  • the reinforcement mat 11 is incorporated into the wet sprayed mortar 10. In the wet state, the anchoring element, namely the profile 8 is applied, and the sprayed mortar 10 thus anchored with pressure against the reinforcing mat 11.
  • the reinforcing element is covered wet in wet with the identical sprayed mortar 10. It is understood that such reinforcing mats 11 can be laid crosswise superimposed and covered with sprayed mortar 10 to initiate tensile forces of any direction in the building or the substrate 9.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Textile Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

L'invention concerne un treillis d'armature (11) utilisé pour une couche de mortier ou de mortier projeté armée sur une base (9). Il a la particularité de renfermer des fibres de carbone (3) qui s'étendent uniquement dans une direction particulière, et forme, conjointement avec des fibres de stabilisation (4) constituées de verre et de polyester, peu coûteuses, qui s'étendent dans une ou plusieurs autres directions, un tissu, un non-tissé ou un tricot. La grosseur des mailles est d'au moins 10 mm, les fibres de carbone utilisées (3) présentant respectivement une résistance à la traction de plus de 200 gigapascal. Le procédé d'installation du treillis d'armature consiste à : a) gratter la surface de la base (9) ; b) appliquer une couche d'égalisation (10) en mortier de ciment que la surface grattée de la base (9) ; c) fixer le treillis d'armature (11) en pressant ce dernier dans la couche d'égalisation (10) humide qui n'a pas encore pris ; et d) appliquer une couche de recouvrement (12) constituée du même mortier de ciment sur la couche d'égalisation (10) armée humide qui n'a pas encore pris.
EP10744836A 2009-08-28 2010-08-05 Treillis d'armature pour une couche de mortier ou de mortier projeté armée sur une base, procédé de pose associé et revêtement de mortier armé ainsi obtenu Withdrawn EP2470732A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH13352009A CH701700A2 (de) 2009-08-28 2009-08-28 Bewehrungsmatte für eine armierte Mörtel- oder Spritzmörtelschicht auf einer Unterlage sowie Verfahren zu deren Einbau.
CH642010 2010-01-19
CH762010A CH702583A2 (de) 2010-01-21 2010-01-21 Bewehrungsmatte für eine armierte Mörtel- oder Spritzmörtelschicht auf einer Unterlage sowie Verfahren zu deren Einbau und damit erstellte armierte Mörtelbeschichtung.
PCT/CH2010/000193 WO2011022849A1 (fr) 2009-08-28 2010-08-05 Treillis d'armature pour une couche de mortier ou de mortier projeté armée sur une base, procédé de pose associé et revêtement de mortier armé ainsi obtenu

Publications (1)

Publication Number Publication Date
EP2470732A1 true EP2470732A1 (fr) 2012-07-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP10744836A Withdrawn EP2470732A1 (fr) 2009-08-28 2010-08-05 Treillis d'armature pour une couche de mortier ou de mortier projeté armée sur une base, procédé de pose associé et revêtement de mortier armé ainsi obtenu

Country Status (7)

Country Link
US (1) US20120238163A1 (fr)
EP (1) EP2470732A1 (fr)
CN (1) CN102575473A (fr)
BR (1) BR112012004407A2 (fr)
CA (1) CA2772089A1 (fr)
IN (1) IN2012DN02659A (fr)
WO (1) WO2011022849A1 (fr)

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US8950160B1 (en) * 2014-01-17 2015-02-10 Preferred Inspections, Inc. Mortar packages and single-person method of using mortar packages for masonry construction
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WO2011022849A1 (fr) 2011-03-03
IN2012DN02659A (fr) 2015-09-11

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