EP2956283B1 - Procédé de fabrication d'un élément en béton armé multicouche - Google Patents

Procédé de fabrication d'un élément en béton armé multicouche Download PDF

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Publication number
EP2956283B1
EP2956283B1 EP14705737.6A EP14705737A EP2956283B1 EP 2956283 B1 EP2956283 B1 EP 2956283B1 EP 14705737 A EP14705737 A EP 14705737A EP 2956283 B1 EP2956283 B1 EP 2956283B1
Authority
EP
European Patent Office
Prior art keywords
concrete wall
concrete
insulating layer
reinforcement body
casting mold
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.)
Not-in-force
Application number
EP14705737.6A
Other languages
German (de)
English (en)
Other versions
EP2956283A1 (fr
Inventor
Rolf Roers
Haval Khaffaf
Michael LOOF
Achim Symannek
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.)
Covestro Deutschland AG
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Covestro Deutschland 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
Application filed by Covestro Deutschland AG filed Critical Covestro Deutschland AG
Priority to EP14705737.6A priority Critical patent/EP2956283B1/fr
Publication of EP2956283A1 publication Critical patent/EP2956283A1/fr
Application granted granted Critical
Publication of EP2956283B1 publication Critical patent/EP2956283B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/04—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
    • B28B11/042—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers with insulating material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
    • B28B19/003—Machines or methods for applying the material to surfaces to form a permanent layer thereon to insulating material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B28B23/028—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members for double - wall articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/342—Moulds, cores, or mandrels of special material, e.g. destructible materials which are at least partially destroyed, e.g. broken, molten, before demoulding; Moulding surfaces or spaces shaped by, or in, the ground, or sand or soil, whether bound or not; Cores consisting at least mainly of sand or soil, whether bound or not
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/049—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres completely or partially of insulating material, e.g. cellular concrete or foamed plaster
    • 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
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast

Definitions

  • the invention relates to a method for producing a multilayer, reinforced concrete element, wherein the multilayer, reinforced concrete element comprises at least a first concrete wall in combination with a reinforcing body, wherein the concrete element comprises an at least indirectly applied to the first concrete wall insulating layer and wherein the reinforcing body at least partially the first concrete wall protruding and the insulating layer is formed penetrating.
  • Precast concrete plays an important role in the construction industry.
  • precast concrete elements have been fitted with integrated insulation layers at the factory for a number of years, in particular for reinforced concrete walls and ceilings with core insulation.
  • insulating board products in particular mineral wool and polystyrene, are introduced by hand.
  • the EP 1 010 828 B1 shows a further production of a wall panel with an inner shell and an outer shell made of concrete, which are connected to one another via carriers of a reinforcing body.
  • PU foam is applied to the inner side of the foam, which faces upward to apply the PU foam.
  • the complementary concrete shell is then produced by immersion in a concrete bed and subsequent curing. A defined cavity for the PU foam body is not created, and a subsequent pouring with more concrete takes place on an undefined PU insulating layer surface.
  • the not yet cured PU foam body, which is applied as a reaction mixture, is distributed by means of an air stream.
  • the height of the cured foam results from the applied height of the reaction mixture, the height of which is again determined by the speed of the application for a given reaction time and has an irregular topography.
  • a structural geometric limitation of the cavity is therefore not created, so that disadvantageously no insulating layer of a defined thickness can be formed.
  • a similar method discloses the EP 1 106 745 A2 ,
  • a method for producing a prefabricated ceiling element is described as a prefabricated component, wherein two sheets of reinforced concrete by a plurality of lattice girder are spaced from each other, and wherein the lattice girders are embedded in the respective disc and wherein the end sections comprise at least the longitudinal bars with welded strut knot, and wherein the space between the panes is completely filled with foamed polyurethane.
  • the resulting between the two discs cavity is filled with polyurethane foam during production already.
  • the hardened polyurethane layer should support the structural-technical function of the lattice girders and the concrete slabs.
  • the object of the present invention is to provide an improved method for producing a multilayer, reinforced concrete element, and in particular the object of the invention is to be able to form the insulating layer of a PU foam, preferably with different thicknesses in a flexible manner.
  • the essence of the invention consists in particular in that the concrete wall provided with the reinforcing body, for example with integrated metallic lattice girders or fiberglass anchors for forming the reinforcement body, upside down, ie. with the reinforcing body facing downwards, placed over a preferably vibratable bedding container or the like, in which the bed of flowable solids is provided, in particular of granules of fine granularity such as quartz sand.
  • the filling height of the bed or the height at which the concrete wall is held above the surface of the bed can be set arbitrarily.
  • the insulating layer can be formed highly flexible with different thicknesses.
  • the thickness of the insulating layer may for example be a value of 2cm to 40cm, preferably for example from 5cm to 30cm and more preferably for example from 10cm to 25cm, as these thicknesses can be foamed particularly well with a reaction mixture.
  • Reaction mixtures of polyol and isocyanate are particularly suitable for the production of polyurethane insulating layers, but the insulating layer may comprise any further insulating material, for example also a phenolic resin foam.
  • the reinforcement body need not be made in one piece and it may, for example, individual, preferably glass fiber reinforced polymer rods or baskets form the reinforcing body. Also, so-called shear mandrels are known, so that the reinforcing body in particular can also be constructed from a Schubdornsystem consisting of steel elements or fiber-reinforced polymer elements which form the shear mandrels.
  • Filling the clearance with the reaction mixture may be accomplished by a flexible casting system, such as a sprue system, a rigid or oscillating casting head, or a casting mandrel arranged to be located between the concrete element and the bed surface despite the presence of the reinforcing body can be moved.
  • a flexible casting system such as a sprue system, a rigid or oscillating casting head, or a casting mandrel arranged to be located between the concrete element and the bed surface despite the presence of the reinforcing body can be moved.
  • the casting can also be done from the side, and the reaction mixture can enter the free space.
  • the term casting also encompasses any type of spraying or spraying of the reaction mixture.
  • the bed can in principle be formed by any type of flowable solids and may also comprise mixtures of different solids.
  • the bed should be suitable to form a barrier to the reaction mixture so as to form forming, wherein the reaction mixture, which in particular comprises the components polyol and isocyanate, can foam in about horizontally flat extending free space with vertically defined height.
  • the thus created cavity forms a defined cavity with a substantially flat, parallel to the first concrete wall extending extension between the surface of the bed as the lower boundary and the underside of the first concrete wall as the upper boundary, and this cavity can in particular by means of a distribution system over the entire surface with flowable Reaction mixture or another at least phased flowable mixture are filled to form the insulating layer after curing.
  • the second concrete wall can be cast onto the manufactured element or the insulated first concrete wall can be immersed in the still fresh (non-set) second concrete wall, so that the end component is a reinforced concrete sandwich element with two concrete walls and the intermediate insulating layer, in particular a PU Foam core insulation results.
  • the following process step takes place after curing of the insulating layer: Insertion of the first concrete wall with the reinforcing body in a casting mold, wherein the protruding portion and the insulating layer are arranged below the first concrete wall. It can then be done filling the mold with concrete, but preferably can take place the first concrete wall in the already reinforced and freshly concreted second wall.
  • the casting of the concrete for the second wall is usually carried out so before inserting the already cured first wall.
  • the result is the second concrete wall, in which the protruding portion of the reinforcing body is at least partially also cast. In this embodiment, therefore, the projecting portion protrudes downwards.
  • the mold is delimited upwards by the concrete wall. Depending on the amount of liquid concrete, which is introduced into the mold, the free space is thus selectively filled.
  • the second concrete wall can also be formed such that the second concrete wall rests against the insulating layer, at least indirectly, by completely filling the free space. So it is then in the finished product no gap between the second concrete wall and insulation layer available.
  • the free space in the casting mold between the bottom of the casting mold and the insulating layer is only partially filled with liquid concrete, so that a gap remains between the insulating layer and the second concrete wall. Such a gap can be filled with concrete, for example, later on the site.
  • the composite of insulating layer and the first concrete wall is inserted with the reinforcing body in the mold, wherein the protruding portion of the reinforcing body and the insulating layer is disposed above the first concrete wall.
  • the insulating layer can form the bottom of the mold thus created.
  • the composite of the first concrete wall with the reinforcing body and the insulating layer is immersed in an already filled with concrete mold with the insulating layer facing down and the concrete is then cured for this process step. In This embodiment, no gap between the second concrete wall and insulation layer is generated.
  • An indirect concern also means a construction in which a further layer of material is provided between the concrete wall and the adjacent insulating layer, for example an insulating film.
  • a further layer of material is provided between the concrete wall and the adjacent insulating layer, for example an insulating film.
  • the two layers are no longer in contact with each other.
  • the concrete walls which may basically be plate-shaped, are oriented substantially horizontally.
  • FIG. 2c shows a finished reinforced concrete element 10, which was prepared by a method according to the invention.
  • the reinforced concrete element 10 includes an overhead arranged first concrete wall 11 and a second concrete wall spaced therefrom 12. Between the two concrete walls 11 and 12, an insulating layer 14 is provided. The insulating layer 14 is applied to the first concrete wall 11, and between the insulating layer 14 and the second concrete wall 12, a free space 20 is formed.
  • Figure 3c shows an alternative reinforced concrete element 10. This corresponds largely to the structure of the reinforced concrete element after Figure 2c , wherein the free gap 22 is omitted.
  • the insulating layer 14 is now also on the second concrete wall 12. Between the insulating layer 14 and the adjoining concrete walls can be arranged, for example, plastic films or other layers of material.
  • a reinforcing body 13 is shown in the form of a steel reinforcement basket, visible in the space 20.
  • the reinforcing body 13 is completely enclosed by concrete or the insulating layer 14 and therefore not visible.
  • FIG. 1a the reinforcing body 13 is inserted in a first mold 17.
  • the first mold 17 is now partially filled with liquid concrete 22.
  • the concrete then cures to the first concrete wall 11, see FIG. 1b ,
  • a section 13 "of the reinforcing body 13 is now cast in the first concrete wall 11.
  • Another section 13 'of the reinforcing body 13 protrudes from the first concrete wall 11.
  • first concrete wall (11) and reinforcing body (13) is reversed, so that the protruding portion 13 'is arranged on the underside of the first concrete wall 11.
  • the bed 15 is formed by sand, in particular by quartz sand. But it is only the reinforcing body 13 with its protruding portion 13 'immersed in the bed 15.
  • the first concrete wall 11 remains completely above and arranged at a distance from the bed 15. There thus remains a vertical space 16 between the first concrete wall 11 and the bed 15 in the hopper 23, see Figure 1d ,
  • the bed 15 can be shaken by means of a vibrator.
  • the shaking of the bed 15 is useful so as to distribute the bed as evenly as possible and to obtain a flat surface as possible.
  • the free space 16 is now completely filled with a flowable reaction mixture, in the present example PU foam made of polyol and isocyanate.
  • a flowable reaction mixture in the present example PU foam made of polyol and isocyanate.
  • the reaction mixture becomes solid and forms a composite of the insulating layer 14 with the first concrete wall 11 and the reinforcing body, see Figure 1e , In FIG. 1f Now, the intermediate product is shown, which comprises the first concrete wall 11, the adjacent insulating layer 14 and the reinforcing body 13.
  • FIG. 1f represent a finished reinforced concrete element.
  • the intermediate product is inserted into a second mold 18, see FIG. 3a ,
  • the reinforcing body 13 is inserted with its protruding portion 13 'down into the second mold 18.
  • Spacers not shown, can ensure that the reinforcing body 13 basically has a certain distance from the bottom 19 of the casting mold 18.
  • FIG. 2b It can be seen that now a free space 21 between the insulating layer 14 and the bottom 19 of the mold 18 is formed.
  • the protruding portion 13 'of the reinforcing body 13 is arranged.
  • This space 21 is now at least partially filled with concrete 22. There remains a gap 20, since the space 21 is only partially filled. But it is also possible that the space 21 is completely filled. So then the second concrete wall 12 is brought into contact with the insulating layer 14.
  • the intermediate product becomes FIG. 1f inserted into the second mold 18, that the protruding portion 13 'of the reinforcing body 13 facing upward and so that the first concrete wall 11 is disposed below the insulating layer 14, see FIG. 3a
  • FIG. 3b is now the intermediate after FIG. 1f shown within the second mold 18.
  • the first concrete wall 11 rests on the bottom 19 of the second casting mold 18.
  • the mold 18 is filled from above with concrete 22. Due to gravity now puts the filled concrete 22 to the insulating layer 14, so that it is not provided in this embodiment, that a gap 20 between the insulating layer and the second concrete wall 12 is formed.
  • the invention is not limited in its execution to the above-mentioned preferred embodiment. Rather, a number of variants is conceivable, which of the solution shown makes use even in fundamentally different versions.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Producing Shaped Articles From Materials (AREA)

Claims (7)

  1. Procédé de fabrication d'un élément en béton armé multicouche (10), comprenant au moins une première paroi en béton (11) formant un composite avec un corps d'armature (13), dans lequel l'élément en béton (10) comprend une couche d'isolation (14) appliquée au moins indirectement sur la première paroi en béton (11) et dans lequel le corps d'armature (13) est réalisé de façon au moins partiellement saillante hors de la paroi en béton (11) et traversant au moins partiellement la couche d'isolation (14), comprenant les étapes suivantes:
    - préparer le composite constitué de la première paroi en béton (11) avec le corps d'armature (13) partiellement saillant hors de celle-ci,
    - préparer un mélange brut (15), en particulier dans un récipient de mélange ouvert vers le haut (23),
    - disposer la première paroi en béton (11) avec le corps d'armature (13) disposé sur celle-ci au-dessus de la surface du mélange brut (15), de telle manière qu'une partie saillante (13') du corps d'armature (13) soit disposée du côté inférieur de la première paroi en béton (11) et ne plonge que partiellement dans le mélange brut (15), de telle manière qu'il reste un espace libre vertical (16) entre la surface du mélange brut (15) et le côté inférieur de la première paroi en béton (11),
    - remplir l'espace libre (16) avec un mélange de réaction, et
    - durcir le mélange de réaction pour former la couche d'isolation (14).
  2. Procédé selon la revendication 1, caractérisé par l'étape préalable de la coulée et de la prise de la première paroi en béton (11), dans lequel lors de la coulée une partie (13") du corps d'armature (13) est noyée dans la première paroi en béton (11) et une autre partie (13') du corps d'armature (13) est saillante hors de la première paroi en béton (11).
  3. Procédé selon la revendication 1 ou 2, caractérisé par les autres étapes de procédé prévues après la formation de la couche d'isolation (14):
    - préparer un moule de coulée (18),
    - déposer le composite constitué de la première paroi en béton (11), du corps d'armature (13) partiellement saillant hors de celle-ci et de la couche d'isolation formée (14) dans le moule de coulée (18) en particulier déjà rempli de béton liquide, dans lequel la partie saillante (13') du corps d'armature (13) et la couche d'isolation formée (14) sont disposées en dessous de la première paroi en béton (11),
    - remplir le moule de coulée (18) avec du béton liquide (22), lorsque celui-ci n'a pas déjà été rempli de béton,
    - durcir la deuxième paroi en béton (12), dans laquelle la partie saillante (13') du corps d'armature (13) est au moins partiellement noyée.
  4. Procédé selon la revendication 3, caractérisé en ce que lors du remplissage du moule de coulée (18) avec du béton liquide (22) et la production de la deuxième paroi en béton (12), un espace libre (21) formé entre un fond (19) du moule de coulée (18) et le côté inférieur de la couche d'isolation (14) n'est que partiellement rempli de béton liquide (22), de telle manière qu'un espace intermédiaire libre (20) soit formé entre la couche d'isolation (14) et la deuxième paroi en béton (12).
  5. Procédé selon la revendication 3, caractérisé en ce que lors du remplissage du moule de coulée (18) avec du béton liquide (22) et la production de la deuxième paroi en béton (12), un espace libre (21) formé dans le moule de coulée (18) entre un fond (19) du moule de coulée (18) et le côté inférieur de la couche d'isolation (14) est entièrement rempli de béton liquide (22), de telle manière que la couche d'isolation (14) soit formée en s'appliquant au moins indirectement l'une sur l'autre avec la deuxième paroi en béton (12).
  6. Procédé selon la revendication 1 ou 2, caractérisé par les autres étapes de procédé prévues après la formation de la couche d'isolation (14):
    - déposer le composite constitué de la première paroi en béton (11), du corps d'armature (13) au moins partiellement saillant hors de celle-ci et de la couche d'isolation formée (14) dans le moule de coulée (18), dans lequel la partie saillante (13') et la couche d'isolation (14) sont disposées au-dessus de la première paroi en béton (11),
    - remplir le moule de coulée (18) avec du béton liquide (22), formant ainsi après durcissement une deuxième paroi en béton (12), dans lequel la partie saillante (13') du corps d'armature (13) est au moins partiellement et de préférence entièrement noyée dans le béton de la deuxième paroi en béton (12).
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que pendant les opérations de remplissage des moules de coulée (18) la première paroi en béton (11) et/ou la couche d'isolation (14) sont orientées essentiellement horizontalement.
EP14705737.6A 2013-02-15 2014-02-10 Procédé de fabrication d'un élément en béton armé multicouche Not-in-force EP2956283B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14705737.6A EP2956283B1 (fr) 2013-02-15 2014-02-10 Procédé de fabrication d'un élément en béton armé multicouche

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13155444.6A EP2767373A1 (fr) 2013-02-15 2013-02-15 Procédé de fabrication d'un élément en béton armé multicouche
PCT/EP2014/052500 WO2014124886A1 (fr) 2013-02-15 2014-02-10 Procédé de fabrication d'un élément en béton armé à plusieurs couches
EP14705737.6A EP2956283B1 (fr) 2013-02-15 2014-02-10 Procédé de fabrication d'un élément en béton armé multicouche

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EP2956283A1 EP2956283A1 (fr) 2015-12-23
EP2956283B1 true EP2956283B1 (fr) 2017-02-01

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EP13155444.6A Withdrawn EP2767373A1 (fr) 2013-02-15 2013-02-15 Procédé de fabrication d'un élément en béton armé multicouche
EP14705737.6A Not-in-force EP2956283B1 (fr) 2013-02-15 2014-02-10 Procédé de fabrication d'un élément en béton armé multicouche

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US (1) US20150368902A1 (fr)
EP (2) EP2767373A1 (fr)
CN (1) CN104981330B (fr)
MX (1) MX2015010227A (fr)
RU (1) RU2015139040A (fr)
WO (1) WO2014124886A1 (fr)

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CN107553806B (zh) * 2016-07-01 2021-08-24 科思创德国股份有限公司 聚氨酯混凝土夹芯元件及其制法
CN109176867A (zh) * 2018-09-14 2019-01-11 西安建工绿色建筑集团有限公司 一种预制ptw墙板生产定位装置及预制ptw墙板生产方法
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EP2767373A1 (fr) 2014-08-20
WO2014124886A1 (fr) 2014-08-21
MX2015010227A (es) 2016-10-26
RU2015139040A (ru) 2017-03-22
CN104981330B (zh) 2017-09-01
CN104981330A (zh) 2015-10-14
US20150368902A1 (en) 2015-12-24
EP2956283A1 (fr) 2015-12-23

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