EP4146878A1 - Maillage en matériau composite - Google Patents

Maillage en matériau composite

Info

Publication number
EP4146878A1
EP4146878A1 EP21729637.5A EP21729637A EP4146878A1 EP 4146878 A1 EP4146878 A1 EP 4146878A1 EP 21729637 A EP21729637 A EP 21729637A EP 4146878 A1 EP4146878 A1 EP 4146878A1
Authority
EP
European Patent Office
Prior art keywords
fibers
composite material
mesh
warp
weft
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.)
Pending
Application number
EP21729637.5A
Other languages
German (de)
English (en)
Inventor
Andrea ZAMPA
Allen DUDINE
Enrico ZANELLO
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.)
Fibre Net Holding Srl
Original Assignee
Fibre Net Holding Srl
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 Fibre Net Holding Srl filed Critical Fibre Net Holding Srl
Publication of EP4146878A1 publication Critical patent/EP4146878A1/fr
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
    • E04C5/073—Discrete reinforcing elements, e.g. fibres
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/04—Mats

Definitions

  • the present invention relates to a mesh made of a composite material.
  • the present invention relates to connection elements made of a composite material to be used, e.g., for consolidating, protecting, or securing structures in the construction and industry field and the infrastructure and road sector.
  • the meshes are embedded in a mortar with binding agents, which may be of different types, and are used for consolidating existing structures (masonry, concrete, reinforced concrete, etc.) creating a reinforced plaster to be applied onto the surfaces, or as slabs for manufacturing load-bearing floors.
  • the mesh for example, may be blocked in position by using junction or connection elements inserted in holes made in the substrate to be consolidated/reinforced.
  • the junction elements are generally made of metal or another material and are typically L-shaped, in which the two sides are substantially perpendicular to each other. In use, once an anchoring resin has been distributed inside the hole, one side is inserted into the hole obtained in the masonry, while the other side is arranged parallel to the surface of the masonry.
  • the mesh and junction elements are therefore embedded inside a mortar with binding agents which may be of different types.
  • the mesh is positioned on both surfaces of the masonry, it is possible to block it in position, making a through-hole so that the two meshes may be connected to each other with two junction elements: a first junction element inserted at one surface, and a second junction element inserted at the opposite surface.
  • the mesh made of a composite material is inserted into a bituminous road surface to reduce the long-term effects of vehicle traffic or to extend the service life of the operation.
  • this type of mesh made of a composite material is used to create exposed fencing using structures, such as posts and bracing.
  • document EP 3431666A1 describes a process for making a mesh made of a composite material which can be made from fibers totally embedded in resin.
  • Meshes of this type are also described in KR 102102 435 B1 and US 5,244,693 A.
  • each mesh does not allow the mesh itself to be placed straddling two surfaces which are not consecutive and parallel. In other words, it is not possible to turn the mesh over on changes of surface. [0014]The same problem occurs in the case of meshes used as fencing.
  • FIG. 1 diagrammatically shows a perspective view of a first embodiment of a mesh made of a composite material according to the present invention
  • - figure 2 diagrammatically shows a perspective view of an alternative embodiment of a mesh made of a composite material according to the present invention
  • FIG. 3 and 4 diagrammatically show two views of a component of a mesh made of a composite material according to the present invention
  • FIG. 5 diagrammatically shows a view of a component of a mesh made of a composite material according to the present invention.
  • FIG. 6 diagrammatically shows a perspective view of a further alternative embodiment of the present invention.
  • Figure 1 diagrammatically shows a component of a mesh made of a composite material according to the present invention indicated by reference numeral 12.
  • the mesh made of a composite material 12 comprises fibers mutually arranged to form a weft 14 and a warp 16.
  • weft 14 and warp 16 are substantially perpendicular to each other.
  • weft 14 and warp 16 may be arranged at mutually different angles, e.g., 45°.
  • the mesh made of a composite material may comprise two warps 16, 216.
  • the intersection points 18 may comprise one weft yarn and two warp yarns.
  • the warp yarns 16, 162 may have substantially perpendicular mutual directions.
  • the weft yarns may be arranged at about 45° to the warp yarns.
  • the weft 14 comprises at least one weft yarn 142, which comprises at least one fiber.
  • the warp 16 comprises at least one warp yarn 162, which comprises at least one fiber.
  • the mesh made of a composite material 12 may comprise a binder.
  • the weft 14 and/or the warp 16 are impregnated with said binding agent in predetermined impregnation zones so that some portions of weft yarns 142 and/or some portions of warp yarns 162 consist of portions of virgin fibers.
  • the predetermined impregnation zones comprise intersection points 18 between weft 14 and warp 16 and thus act as interlacing means 20.
  • the warp yarns 162 may be impregnated with the binder only at intersections 18 with the weft yarns 142.
  • the predefined impregnation zones comprise the entirety of the weft yarns 142 or only a small circumference of weft yarns 142 at the intersections between the weft yarns 142 and the warp yarns 162.
  • the interlacing means 20 between the weft 14 and the warp 16 may comprise mechanical type junction elements, polymeric material elements, or bonding through an adhesive.
  • the mechanical type interlacing means may be, for example, banding made of metallic material.
  • the interlacing means 20 of polymeric type may be, for example, banding made of polymeric material, obtained with a tie similar to the one shown in figure 5, but made of polymeric material.
  • Figures 3 and 4 show a further embodiment of the interlacing means 20 made in the form of a button.
  • the interlacing means 20 may comprise two components: a first component 202 provided with pins 206 (e.g., two), and a second component 204 provided with respective seats 208.
  • the coupling between first component 202 and second component 204 may be achieved by coupling between pins 206 and respective seats 208.
  • such a coupling may be non-reversible.
  • the first and second components can be made of metal or polymeric material.
  • virgin fibers is understood to mean fibers which were not been embedded in the binder at a portion thereof. In technical jargon, virgin fibers can also be referred to as "dry" fibers. [0037]The fibers may comprise synthetic organic fibers, natural organic fibers, inorganic fibers, and/or even metallic fibers.
  • Synthetic organic fibers may comprise, for example, aramid fibers, polyester, and/or even polyparaphenylene benzobisoxazole (PBO).
  • PBO polyparaphenylene benzobisoxazole
  • Natural organic fibers may comprise, for example: cotton, hemp, flax, sisal, bamboo, wood, wool, silk, etc.
  • the inorganic fibers may comprise, for example: glass, carbon, basalt, quartz, etc.
  • the metallic fibers may comprise, for example: stainless steel, carbon steel, copper, brass, aluminum, titanium, etc.
  • each weft yarn 142 and/or even each warp yarn 162 may comprise fibers of a mutually different type.
  • the mesh made of a composite material can be made by combining various types of fiber, even with different percentages in weft 14 and warp 16.
  • the interconnecting means 20 may be a tie, e.g., of a fibrous type in winding and/or metallic type in the same manner.
  • the binder also called a matrix
  • the binder may be a resin.
  • the resin can be either of the thermosetting or the thermoplastic type.
  • thermosetting resin this may, for example, be of the vinyl-ester, polyester, bisphenol, acrylic type, etc.
  • the resin may be selected from the group comprising PVA, PP, Pen, etc.
  • the resin may contain catalysts for the polymerization/crosslinking process.
  • the catalysts may be such that they are activated e.g., by heat, radiation, infrared or UV radiation.
  • the fibers may be treated with surface additives to improve their durability and/or adhesion with the resin and/or other organic/inorganic and other matrices, such as asphalt, both before and after the application of the interlacing means 20.
  • the weft yarns 142 may comprise a plurality of fibers, e.g., glass and steel fibers.
  • the warp yarns 162 may comprise two fiber bundles 164, 166 of balanced (same amount of fiber) or, alternatively, unbalanced content.
  • the warp yarns 162 may comprise a plurality of fibers, e.g., glass and steel fibers.
  • the weft 14 may be made from preformed bars or bars resulting from a pultrusion process.
  • the weft yarns 142 or warp yarns 162 may be impregnated with said binder and preformed.
  • the weft yarn 142 or warp yarn 162 may be substantially flat, or circular, or otherwise shaped (e.g., trapezoidal) .
  • the warp yarns 162 may be made by fibers 164, 166 twisted about an axis of the warp yarn 162 itself.
  • the mesh made of a composite material can be easily bent in directions substantially parallel to the weft yarns 142.
  • the weft yarns between one intersection 18 and the other are not impregnated with resin, the mesh made of a composite material can be easily bent in directions substantially parallel to the warp yarns 162.
  • the predetermined impregnation zones may also refer, for example, to a plurality of warp yarn portions 162 between one intersection 18 and another, leaving virgin fiber portions on the warp yarns 142 between two consecutive weft yarns 142.
  • the impregnation can take place in spots (drip), with a continuous process and/or by molding. [0059]The advantages which can be achieved by a mesh made of a composite material according to the present invention are therefore apparent.
  • a mesh made of a composite material adapted to reinforce a wall with changes of surfaces, e.g., in the case of intersections between masonry walls, is made available.
  • the mesh made of a composite material according to the present invention can be used to reinforce horizontal or sub-horizontal surfaces without the difficulty of keeping it in position during the screed or the bituminous conglomerate laying operations.
  • the mesh 12 when the predetermined impregnation zones are made near and on the intersection of weft 14 and warp 16, keeping only the nodal zone of the rigid mesh, it is possible to fold and arrange the mesh 12 in a three-dimensional manner, thus adapting it, for example, to a spherical truncated element (e.g., the surface of a dome).
  • the predetermined impregnation zones can be arranged according to specific requirements, e.g., such as the need to bend the mesh in several directions, even at a mutual angle.
  • the impregnation zones are such as to leave portions of weft yarns 142 and/or portions of warp yarns 162 made of virgin fibers, which can thus allow the mesh to be bent in inclined directions relative to the direction of the respective portions of weft yarns 142 and/or portions of warp yarns 162.
  • the predetermined impregnation zones may comprise parallel and consecutive portions of weft yarns 142 and/or parallel and consecutive portions of warp yarns 162.
  • a mesh may comprise mutually different weft yarns 142 and/or even mutually different warp yarns 16.
  • a weft 14 and/or even a warp may be made from yarns that have mutually different fibers.
  • a mesh at least part of the weft yarns 142 can be made from fibers of different materials to make mesh zones with predetermined technical characteristics, and/or in a mesh at least part of the warp yarns 162 can be made from fibers of different materials to make zones of the mesh with predetermined technical characteristics.
  • the mesh made of a composite material may be used in conjunction with coatings, laminates, fabrics, non-woven fabrics, coupling films by means of the intersection points 18 or dry fibers.
  • mechanical or polymeric connection means may be adapted to connect with corresponding elements for joining with a matched element.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Woven Fabrics (AREA)
  • Glass Compositions (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un maillage (12) constitué d'un matériau composite comprenant des fibres. Les fibres sont mutuellement agencées pour former une trame (14) et une chaîne (16). La trame (14) comprend au moins un fil de trame (142) qui comprend au moins une fibre. La chaîne (16) comprend au moins un fil de chaîne (162) qui comprend au moins une fibre. Le maillage en matériau composite (12) est caractérisé en ce que ladite trame (14) et la chaîne (16) sont mutuellement reliées au niveau de points d'intersection (18) par des moyens d'entrelacement (20).
EP21729637.5A 2020-05-07 2021-05-06 Maillage en matériau composite Pending EP4146878A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102020000010243A IT202000010243A1 (it) 2020-05-07 2020-05-07 Rete in materiale composito
PCT/IB2021/053852 WO2021224853A1 (fr) 2020-05-07 2021-05-06 Maillage en matériau composite

Publications (1)

Publication Number Publication Date
EP4146878A1 true EP4146878A1 (fr) 2023-03-15

Family

ID=71784470

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21729637.5A Pending EP4146878A1 (fr) 2020-05-07 2021-05-06 Maillage en matériau composite

Country Status (6)

Country Link
US (1) US20230332407A1 (fr)
EP (1) EP4146878A1 (fr)
CN (1) CN115552084A (fr)
CA (1) CA3182312A1 (fr)
IT (1) IT202000010243A1 (fr)
WO (1) WO2021224853A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117460873A (zh) * 2022-05-25 2024-01-26 车里雅宾斯克复合集团有限责任公司 非金属frp（纤维增强聚合物）钢筋网制造工艺生产线

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5244693A (en) * 1989-03-15 1993-09-14 Kanebo Ltd. Process for the preparation of a network article
IT201700080359A1 (it) * 2017-07-17 2019-01-17 Plastiron Srls Rete per rinforzo strutturale e leganti idraulici comprendenti tale rete
KR102102435B1 (ko) * 2019-09-04 2020-04-20 한국건설기술연구원 부착력을 향상시킨 텍스타일 그리드 제조장치 및 그 방법

Also Published As

Publication number Publication date
WO2021224853A1 (fr) 2021-11-11
US20230332407A1 (en) 2023-10-19
IT202000010243A1 (it) 2021-11-07
CN115552084A (zh) 2022-12-30
CA3182312A1 (fr) 2021-11-11

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