EP1956156B1 - Anschluss zur Verbindung von zwei Platten einer Mauer mit verlorener Verschalung - Google Patents

Anschluss zur Verbindung von zwei Platten einer Mauer mit verlorener Verschalung Download PDF

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Publication number
EP1956156B1
EP1956156B1 EP20080300071 EP08300071A EP1956156B1 EP 1956156 B1 EP1956156 B1 EP 1956156B1 EP 20080300071 EP20080300071 EP 20080300071 EP 08300071 A EP08300071 A EP 08300071A EP 1956156 B1 EP1956156 B1 EP 1956156B1
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EP
European Patent Office
Prior art keywords
connector
wall
plates
ribs
rib
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Active
Application number
EP20080300071
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English (en)
French (fr)
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EP1956156A1 (de
Inventor
Jean-Pierre Millet
Marc Lenges
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Spurgin Leonhart SAS
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Spurgin Leonhart SAS
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Publication of EP1956156A1 publication Critical patent/EP1956156A1/de
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Publication of EP1956156B1 publication Critical patent/EP1956156B1/de
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Classifications

    • 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
    • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
    • E04B2/8611—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers being embedded in at least one form leaf
    • E04B2/8617—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers being embedded in at least one form leaf with spacers being embedded in both form leaves
    • 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
    • E04C2/044—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 of concrete
    • E04C2002/045—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 of concrete with two parallel leaves connected by tie anchors
    • E04C2002/047—Pin or rod shaped anchors

Definitions

  • the present invention relates to a connector for connecting two remote plates that includes a wall formwork integrated.
  • This invention relates to the field of building, particularly that of the manufacture, especially in the factory, of integrated formwork walls intended to be conveyed to a site for use in the production of a structure.
  • such an integrated formwork wall comprises two plates made, usually, from a hydraulic mixture, more particularly concrete. Within this wall, these two plates are positioned at a determined distance from each other so that there is defined between these plates, an interval in which can be cast a hydraulic mixture, this after implantation of this wall on site.
  • This wall comprises, again, a plurality of connectors designed to ensure the connection between the two plates and extending from one plate to another as well as inside each of these plates.
  • Such a connector may be in the form of a metal rod of particularly simple design and having good characteristics in terms of tensile strength and shear of a plate relative to each other.
  • Such a type of connector has, however, the disadvantage of constituting a real thermal bridge between the two plates which is difficult to accept for a wall and / or a wall to have insulation characteristics, including thermal.
  • the present invention is intended to overcome the disadvantages of connectors of the state of the art and their manufacturing process.
  • the invention relates to a connector for connecting two remote plates that comprises a wall formwork integrated, this connector having a core and at least one pair of ribs extending, firstly, radially to from said core and so that the ribs of the same pair are symmetrical with respect to this core and, secondly, longitudinally over at least a portion of the length of the connector.
  • This connector is characterized by the fact that it comprises, again and at the level of at least one rib, at least one means for the positioning of a means for holding an insulating block that comprises the integrated form wall, this positioning means adopting the shape of a groove formed at a relief shape defined at a rib.
  • the raised shape has, preferably on either side of said groove, at least one ramp along which the holding means progresses before engaging inside this groove.
  • Another feature is that, in the case of a plurality of pairs of ribs, they are angularly offset, preferably equiangularly.
  • Another characteristic relates to the fact that it comprises, at the level of at least one rib, a means, associated with said positioning means, and designed to indicate the position of this positioning means and, consequently, a means of maintaining associated with this positioning means.
  • such a connector comprises at least one flange extending radially from the core and having a peripheral edge which is flush with at least one rib, preferably with all the ribs of this connector.
  • this connector comprises at least one cell, delimited by two flanges and two ribs, and designed, according to the location of such a cell at the connector, to constitute either a connector anchoring means in the wall, a means to prevent air flow along this connector.
  • this connector is made of a single material of the composite type, more particularly a synthetic material loaded with fibers, for example GRP, by molding.
  • the invention also relates to an integrated form wall comprising two plates, on the one hand, positioned at a determined distance from one another so that there is defined between these plates an interval and, d on the other hand, interconnected at least by a plurality of connectors having the above-mentioned characteristics.
  • this wall comprises, still, at least one connecting device of the plates of this wall, on the one hand, designed to cooperate with a device of lifting and, on the other hand, having a first end, respectively a second end, extending inside the material of one of the wall plates, respectively the other plate of the wall.
  • this connecting device is made of a material capable of achieving a thermal break between the two plates and can be in the form of a hollow cylinder.
  • such a wall comprises a block made of an insulating material, more particularly polystyrene, especially expanded, and positioned in the gap, more particularly in contact with one of the wall plates.
  • the connector comprises ribs which make it possible to give such a connector a high rigidity in terms of bending so that this connector has excellent resistance to shear stresses between the two wall plates. .
  • the connector according to the invention also has flanges which, in combination with ribs, define cavities which advantageously allow either to contain material for the production of the wall (more particularly for producing the plates of this wall or to fill the gap between these plates) and to ensure the anchoring of this connector in the wall, to prevent the flow of air along this connector.
  • this connector is made only by molding and during a particularly simple manufacturing process, efficient and reproducible.
  • This connector is made of a single material of the composite type, more particularly a synthetic material loaded with fibers.
  • the invention relates to the field of manufacture, especially in the factory, of walls 1 with integrated formwork intended to be conveyed on a site to be used for the realization of a work.
  • such an integrated form wall 1 comprises two plates 2, 3 made, usually, from a hydraulic mixture, more particularly concrete. Within this wall 1, these two plates 2, 3 are positioned substantially in parallel and at a determined distance from each other 3 so that there is defined between these plates 2, 3, an interval 4 in which can be cast a hydraulic mixture, this after implantation of the wall 1 on site.
  • this wall 1 may, again, be completed by at least one block 5 made of an insulating material, more particularly polystyrene, especially expanded, and positioned in the gap 4, more particularly in contact of one of these plates 2, 3.
  • the gap between this insulating block 5 and the plate 3, other than the one 2 with which this insulating block 5 is in contact can be, again, be filled by a hydraulic mixture.
  • the plates 2, 3 of such a wall 1 are connected together using, on the one hand, at least one connecting means 6 designed to cooperate with a lifting device (not shown) more particularly designed for ensure the handling of this wall 1 and, secondly, a plurality of connectors 7.
  • Such a connector 7 has a generally cylindrical general shape and has, on the one hand, a first end portion 8 designed to extend inside the material of one of the plates 2, 3 of the wall 1, on the other hand, a second end portion 9 designed to extend inside the material of the other plate 3 of this wall 1 and, secondly, an intermediate portion 10, between said portions. end 8, 9.
  • such a connector 7 comprises a core 11 as well as at least one rib 12 extending, on the one hand, radially from said core 11 and, on the other hand, longitudinally on at least one part the length of the connector 7.
  • Such a rib 12 advantageously makes it possible to impart to said connector 7 a high rigidity in terms of flexion.
  • such a connector 7 preferably comprises at least one pair of ribs 12, 12 'extending, on the one hand, radially from said core 11 and so that the ribs 12, 12 'of the same pair are symmetrical relative to this core 11 and, secondly, longitudinally over at least a portion of the length of the connector 7.
  • Such a connector 7 comprises, in fact, a plurality of pairs of ribs 12, 12 'which, as visible figure 4 , are angularly offset, preferably equiangularly relative to each other.
  • a preferred embodiment illustrated in the figures in the appendix relates to a connector 7 comprising three pairs of ribs 12, 12 '; 12A, 12'A; 12B, 12'B having the above characteristics.
  • the connector 7 comprises, at the level of at least one rib 12, at least one means 13 for the positioning of a holding means 14 of an insulating block 5 that comprises the integral form wall 1.
  • a positioning means 13 is preferably defined at one of the 12 ribs 12, 12' d such a pair of ribs 12, 12 '. Also and when this connector 7 has a plurality of pairs of ribs, such a positioning means 13 is preferably defined at one of the ribs of each pair of ribs as shown in the accompanying figures.
  • said holding means 14 it is usually constituted by a flange or the like (adopting the shape of a square, a rectangle, and even and preferably of a disc) having a central orifice at through which the body of the connector 7 is engaged.
  • such a holding means 14 is designed to bear against the insulating block 5 and to keep it in contact with either the plate 2 of the wall 1 or against another means 14 for holding.
  • this holding means 14 cooperates with at least one positioning means 13 which makes it possible to ensure, on the one hand, the appropriate positioning of this holding means 14 with respect to the connector 7 and, consequently, by compared to a plate 2 (of standardized thickness) and the insulating block 5 (of standardized thickness) and, secondly, the immobilization of the holding means 14 in this position.
  • such a positioning means 13 takes the form of a groove 15 formed at a form 16 in relief defined at a rib 12.
  • such a form 16 in relief is defined at the edge of such a rib 12 and substantially corresponds to a bump extending relative to this slice.
  • This form 16 in relief has, preferably on either side of said groove 15, at least one ramp 17 along which progresses the holding means 14 before engaging inside this groove 15, this during the establishment of such a holding means 14 at the connector 7 according to the invention.
  • such a positioning means 13 is preferably of the anti-return type.
  • An additional feature of the invention consists in that the connector 7 comprises, at the level of at least one rib 12, a means 18, associated with said positioning means 13, and designed to indicate the position of this positioning means 13 and consequently, a holding means 14 (flange) associated with this positioning means 13, with respect to the connector 7 and, therefore, with respect to a plate 2 of the wall 1 and to an insulating block 5, more particularly relative to the thickness of this insulating block 5.
  • such an indication means 18 is preferably defined at a rib 12 comprising a positioning means 13 of the type described above.
  • a preferred embodiment consists in that the indicating means 18 take the form of a numerical indication appearing in relief or in recess at the level of such a rib 12.
  • the rib 12, at which at least one positioning means 13 and / or at least one indicating means 18 is defined has a thickness upper rib 12 'devoid of such a positioning means 13 and / or such means 18 indication.
  • the ribs 12, 12 'of the same pair may, then, have different thicknesses.
  • the connector 7 comprises at least one flange 19, 19 'extending radially from the core 11 and having a peripheral edge 20 which is flush with at least one rib 12, preferably with all the ribs that this connector 7 comprises.
  • a preferred embodiment is that such a flange 19 adopts the shape of a disc.
  • two flanges 19, 19 ' (more particularly when they follow each other along the connector 7) and two ribs 12, 12'A (more particularly when they follow one another angularly around the 11) delimit an alveolus 21.
  • such a cell 21; 21 ' may have different functions, depending on the location of such a cell 21; 21 'at the connector 7, particularly with respect to the positioning of this connector 7 relative to the wall 1 integrated formwork.
  • Such a cell 21 may constitute a means of anchoring the connector in the wall 1.
  • such a cell 21 is designed to contain the material constituting such a plate 2, 3 of the wall 1 or said filling material of this gap 4.
  • Such is, more particularly, the case when such a cell 21 'is located at a location of the connector 7 intended to be positioned at an insulating block 5.
  • such a cell 21 ' is designed to contain air and prevents the circulation of this air (more particularly at the level of the insulator 5) along the connector 7.
  • said connector 7 has, on the one hand, a first end portion 8 intended to be positioned in a plate 2 of the wall 1 and, on the other hand, a second end portion 9 intended to be positioned in the other plate 3 of this wall 1.
  • At least one of these end portions 8; 9 (but preferably these two end portions 8, 9) has, at at least one rib 12 (or even between two successive flanges 21, 21 '), a means 22 for anchoring the connector 7 in a plate 2; 3 of the wall 1.
  • Such anchoring means 22 is, in fact, constituted by a notch defined at the rib 12, this notch having, in particular, a shape of "V", preferably asymmetric and / or whose branches have a different length .
  • Such an end portion 8 has, at its distal end 23, a stud 24 whose section decreases to its free end where the stud 24 may include a pointing pin.
  • Such stud 24 makes it possible, advantageously, to avoid a deterioration of the concrete on the facade, in particular under the effect of the weight of the wall 1 during the various stages of its manufacture.
  • an end portion 9 may have, at its distal end 25, an arrowhead configuration 26 having a plurality of ribs (in particular 4 as visible Figures 2, 3 and 6 ) whose number may differ from that of the ribs 12 equipping the body of the connector 7 and which may, then, not be an extension of the latter 12.
  • connector 7 is made of a single material of composite type, more particularly of a synthetic material loaded with fibers.
  • the synthetic material is, more particularly, constituted by a plastic, in particular a polyester, while the fibers may be glass and / or carbon or the like.
  • a preferred embodiment consists in that connector 7 is made of a material known by the name of PRV, that is to say, polyester reinforced with glass fibers.
  • the connector 7, object of the present invention is made by a molding technique.
  • the present invention thus also relates to an integrated formwork wall 1 as described above and comprising two plates 2, 3, on the one hand, positioned at a determined distance from each other 3 so defined between these plates 2, 3, an interval 4 (more particularly in which a hydraulic mixture can be cast, this after implantation of this wall 1 on site) and, on the other hand, connected to each other 2, 3 at least by a plurality of connectors 7 having the above characteristics.
  • these connectors 7 are designed to give such an integrated formwork wall 1 the mechanical characteristics necessary for proper transportation and handling.
  • the design of these connectors 7 advantageously makes it possible to provide the wall 1 with an appropriate resistance to shearing and / or traction phenomena between the two plates 2, 3.
  • These connectors 7 thus ensure proper management.
  • the weight of at least one of the plates 2, 3 in particular of the outer plate of this wall 1), more particularly as regards the recovery of the dead weight of this plate 2.
  • this wall 1 can, again, be improved or even optimized by substituting at least a portion of these connectors 7 or by adding to such connectors 7 at least one connecting device 6 as mentioned above.
  • Such a connecting device 6 is, more particularly, designed to cooperate with a lifting device and has characteristics enabling it, more particularly, to manage the weight of at least one of the plates 2, 3 of the wall 1, more particularly that of the outer plate 2 of the latter 1.
  • such a connecting device 6 has a first end, respectively a second end, extending inside the material of one 2 of the plates 2, 3 of the wall 1, respectively of the other plate 3 of this wall 1.
  • a preferred embodiment of the invention is that such a connecting device 6 is made of a material capable of achieving a thermal break between these two plates 2, 3, more particularly a synthetic material.
  • a connecting device 6 is preferably in the form of a hollow cylinder.
  • the integrated form wall 1 according to the invention can, again, be completed by a block 5 made of an insulating material, more particularly polystyrene, in particular expanded, and positioned in the interval 4, more particularly in contact with one of the plates 2, 3 of the wall 1.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)

Claims (15)

  1. Anschluss (7) zur Verbindung von zwei voneinander beabstandeten Platten (2, 3), den eine Mauer (1) mit verlorener Verschalung umfasst, wobei dieser Anschluss (7) eine Kerndicke (11) sowie zumindest ein Paar von Rippen (12, 12') umfasst, die sich, einerseits, radial ab der besagten Kerndicke (11) und auf solche Art und Weise, dass die Rippen (12, 12') eines und desselben Paares hinsichtlich dieser Kerndicke (11) symmetrisch seien, und andererseits, längs zumindest auf einem Teil von der Länge des Anschlusses (7) erstrecken, dadurch gekennzeichnet, dass er weiterhin und im Bereich von zumindest einer Rippe (12) zumindest ein Mittel (13) zum Positionieren eines Mittels (14) zum Halten eines isolierenden Blocks (5) umfasst, den die Mauer (1) mit verlorener Verschalung umfasst, wobei dieses Positioniermittel (13) die Form von einer Rille (15) annimmt, die im Bereich einer reliefartig ausgestalteten Form (16), die im Bereich einer Rippe (12) ausgebildet ist, vorgesehen ist.
  2. Anschluss (7) nach Anspruch 1, dadurch gekennzeichnet, dass die reliefartig ausgestaltete Form (16) vorzugsweise beiderseits von der besagten Rille (15) zumindest eine Steigungsstrecke (17) aufweist, entlang welcher das Haltemittel (14) vorrückt, bevor es in das Innere dieser Rille (15) einrastet.
  3. Anschluss (7) nach irgendeinem der vorgehenden Ansprüche, dadurch gekennzeichnet, dass er eine Mehrheit von Rippenpaaren (12, 12'; 12A, 12'A; 12B, 12'B), vorzugsweise drei Paare umfasst, die winkelmäßig gegeneinander, vorzugsweise gleichwinklig versetzt sind.
  4. Anschluss (7) nach irgendeinem der vorgehenden Ansprüche, dadurch gekennzeichnet, dass er im Bereich von zumindest einer Rippe (12) ein Mittel (18) umfasst, das dem besagten Positioniermittel (13) zugeordnet und ausgelegt ist, um die Position dieses Positioniermittels (13) und folglich eines Haltemittels (4), das diesem Positioniermittel (13) zugeordnet ist, festzulegen.
  5. Anschluss (7) nach irgendeinem der vorgehenden Ansprüche, dadurch gekennzeichnet, dass er zumindest einen Flansch (19) umfasst, der sich radial ab der Kerndicke (11) erstreckt und einen Umfangsrand (20) aufweist, der mit zumindest einer Rippe (12), vorzugsweise mit allen Rippen (12) dieses Anschlusses (7) bündig abschließt.
  6. Anschluss (7) nach Anspruch 5, dadurch gekennzeichnet, dass er zumindest eine Zelle (21) umfasst, die durch zwei Flansche (19, 19') und zwei Rippen (12, 12'A) abgegrenzt ist, und die ausgelegt ist, um entsprechend der Positionierung einer solchen Zelle (21) im Bereich des Anschlusses (7) entweder ein Mittel zur Verankerung des Anschlusses (7) in der Mauer (1) oder ein Mittel, um einen Luftumlauf entlang dieses Anschlusses (7) zu verhindern, zu bilden.
  7. Anschluss (7) nach irgendeinem der vorgehenden Ansprüche, dadurch gekennzeichnet, dass er zwei Endbereiche (8; 9) aufweist, vorgesehen, um jeweils in einer Platte (2; 3) der Mauer (1) positioniert zu werden, und von denen zumindest der eine (8; 9) im Bereich von zumindest einer Rippe (12) die Mittel (22) zur Verankerung dieses Anschlusses (7) in einer Platte (2; 3) der Mauer (1) aufweist.
  8. Anschluss (7) nach irgendeinem der vorgehenden Ansprüche, dadurch gekennzeichnet, dass er aus einem einzelnen Werkstoff der Art Verbundwerkstoff, insbesondere aus einem mit Fasern verstärkten Kunststoff, beispielsweise aus PRV hergestellt ist.
  9. Anschluss (7) nach irgendeinem der vorgehenden Ansprüche, dadurch gekennzeichnet, dass er durch Formen hergestellt ist.
  10. Anschluss (7) nach irgendeinem der vorgehenden Ansprüche, dadurch gekennzeichnet, dass er eine im Wesentlichen zylindrische Allgemeinform annimmt.
  11. Mauer mit verlorener Verschalung (1), die zwei Platten (2, 3) umfasst, welche, einerseits, voneinander in einem bestimmten Abstand zwischen der einen (2) und der anderen (3) positioniert sind, sodass zwischen diesen Platten (2, 3) ein Raum (4) gebildet sei, und welche, andererseits, miteinander (2, 3) durch zumindest eine Mehrheit von Anschlüssen (7) nach irgendeinem der vorgehenden Ansprüche verbunden sind.
  12. Mauer mit verlorener Verschalung (1) nach Anspruch 11, dadurch gekennzeichnet, dass sie weiterhin zumindest eine Vorrichtung zur Verbindung (6) der Platten (2, 3) dieser Mauer (1) umfasst, die, einerseits, ausgelegt ist, um mit einer Hebevorrichtung zusammenzuwirken, und andererseits, ein erstes Ende bzw. ein zweites Ende aufweist, das sich im Innere des Werkstoffs der einen Platte (2) von den Platten (2, 3) dieser Mauer (1) bzw. der anderen Platte (3) der Mauer (1) erstreckt.
  13. Mauer mit verlorener Verschalung (1) nach Anspruch 12, dadurch gekennzeichnet, dass die Verbindungsvorrichtung (6) aus einem Werkstoff, geeignet, um eine Unterbrechung der thermischen Brücke zwischen den beiden Platten (2, 3) herbeizuführen, insbesondere aus einem Kunststoff hergestellt ist.
  14. Mauer mit verlorener Verschalung (1) nach Anspruch 13, dadurch gekennzeichnet, dass die Verbindungsvorrichtung (6) als ein Hohlzylinder ausgestaltet ist.
  15. Mauer mit verlorener Verschalung (1) nach irgendeinem der Ansprüche 11 bis 14, dadurch gekennzeichnet, dass sie einen Block (5) umfasst, der aus einem Isolationsmaterial, nämlich insbesondere aus expandiertem Polystyrol besteht und in dem Raum (4) ganz besonders in Berührung mit der einen (2) von den Platten (2, 3) der Mauer (1) angeordnet ist.
EP20080300071 2007-02-07 2008-02-04 Anschluss zur Verbindung von zwei Platten einer Mauer mit verlorener Verschalung Active EP1956156B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0753108A FR2912165B1 (fr) 2007-02-07 2007-02-07 Connecteur pour le raccordement de deux plaques d'un mur a coffrage integre

Publications (2)

Publication Number Publication Date
EP1956156A1 EP1956156A1 (de) 2008-08-13
EP1956156B1 true EP1956156B1 (de) 2013-09-11

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FR (1) FR2912165B1 (de)

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Publication number Priority date Publication date Assignee Title
FR3024989B1 (fr) 2014-08-21 2018-03-02 Lesage Developpement Mur a coffrage integre a rupture thermique, procede de construction d'un batiment a partir dudit mur, et batiment obtenu
DE102018122202B4 (de) * 2018-09-12 2020-03-19 Hochschule für Technik, Wirtschaft und Kultur Leipzig Vorrichtung und Verfahren zur Verbindung von textilbewehrten, flächigen Betonelementen zu einer Elementwand sowie Verwendung der Vorrichtung
US11248383B2 (en) 2018-09-21 2022-02-15 Cooper E. Stewart Insulating concrete form apparatus
CH717894A2 (de) * 2020-09-22 2022-03-31 Peikko Group Oy Wandbauelement, insbesondere Fassadenwand-Bauelement.

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Publication number Priority date Publication date Assignee Title
US20010029717A1 (en) * 1997-02-04 2001-10-18 Spakousky John G. Composite building block with modular connective structure
DE19949419C2 (de) * 1998-10-13 2003-05-08 Georg Weidner Gitterträger oder Transport- und Verlegeanker für Hohl- und Filigranwände
CZ20032141A3 (cs) * 2003-08-06 2005-05-18 Canstroy Cz, S. R. O. Systém izolačního bednění pro betonovou stěnu a kloubově uložené rozpěrné spojovací žebro
US7415805B2 (en) * 2003-12-08 2008-08-26 Nickerson David L Wall system with masonry external surface and associated method

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EP1956156A1 (de) 2008-08-13
FR2912165B1 (fr) 2013-06-07
FR2912165A1 (fr) 2008-08-08

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