FR2835272A1 - Method for making insulating wall comprises pouring concrete into horizontal mold, placing insulating panel inside mold, removing assembly from mold, pouring second concrete layer into mold and returning assembly to mold - Google Patents

Abstract

The insulating wall (1) comprises two opposite, parallel concrete panels (2,3) sandwiching an insulating panel (4). There are means (5,6,7) including a pin (7) for ensuring a mechanical connection between the concrete panels. The manufacturing method comprises pouring a first layer of concrete into a horizontal mold. Before placing the insulating panel inside the mold it is completed by an armature constituted by a metal trellis (20). After partial drying of the first concrete layer the assembly defining a first concrete panel is taken from the mold. This assembly is then returned to the mold containing a second layer of concrete intended to define the second concrete panel. After drying of the second concrete layer, the insulating wall is removed from the mold. Independent claims are included for an insulating wall and an installation for carrying out the procedure.

Description

<Desc / Clms Page number 1>

 The present invention relates to a method for manufacturing, by molding, an insulating wall comprising, on the one hand, two concrete panels arranged opposite one another and in a substantially parallel manner and, on the other hand , a panel of an insulating material of the expanded or extruded type sandwiched between said concrete panels. The invention also relates to an insulating wall device of the aforementioned type and obtained, in particular, through the implementation of said method. This invention relates, moreover, to an installation for implementing this method and / or for manufacturing at least one such insulating wall device.

 The present invention relates to the field of manufacturing walls intended, after their manufacture, to be transported to the construction site of a building.

 A number of methods and devices corresponding to the above description are already known.

 In particular, so-called sandwich walls are known, the manufacturing process of which consists of placing a first frame in a horizontal mold before pouring a first layer of concrete onto which there is immediately a panel made of an insulating material equipped with connectors. Over this insulating panel there is a second frame which is drowned in a second layer of concrete poured over this insulating panel.

 In this regard, it will be noted that such a manufacturing process is particularly restrictive in particular because of the number of operations which it is advisable to execute successively without counting an essential surfacing operation of the second layer of concrete consisting of a float usually carried out manually by an operator.

 In addition, the implementation of this process requires a particularly bulky installation monopolized both during the phases of molding of the wall as during the phases of drying of the concrete.

 In addition, although the method includes a trowelling step intended to give the wall a regular surface condition, this surface is not sufficiently smooth for one to be able to

<Desc / Clms Page number 2>

 apply a coating (for example a tapestry or a painting ...) without first making an essential covering of this surface.

 It will also be observed that the first and second layers of concrete usually have a different thickness so that the mechanical characteristics of these two layers are significantly different, which results in a problem of inertia and resistance to deformation ( buckling) from one layer to another. As a result, only one of these two layers of concrete is capable of acting as a load-bearing element, while the other layer is simply attached to this load-bearing layer. This being the case, an insulating wall thus formed can only be used for covering or cladding a load-bearing structure (concrete, wood or metal) but cannot in any way be used to constitute a load-bearing wall.

 The present invention aims to overcome the drawbacks of the devices and methods of the prior art through, on the one hand, a new method of manufacturing an insulating wall, on the other hand, a new installation intended to implement this process and, on the other hand, a new insulating wall obtained by the application of this process and by the use of this installation.

 To this end, the present invention relates to a process for the manufacture, by molding, of an insulating wall comprising, on the one hand, two concrete panels arranged opposite one another and in a substantially parallel manner and, on the other hand, a panel made of an insulating material of the expanded or extruded type sandwiched between said concrete panels, characterized in that one defines, at the level of this insulating panel, means intended to ensure a mechanical connection between the two concrete panels, this before placing this insulating panel inside a mold receiving concrete intended to define at least one concrete panel.

 According to a first variant of this process: - a first layer of concrete is poured into a horizontal mold before placing, inside this mold, the insulating panel provided with mechanical connection means;

<Desc / Clms Page number 3>

 - After at least partial drying of the first layer of concrete, the assembly consisting of the insulating panel with which the first layer of concrete is associated defining a first concrete panel is removed from the mold and turned over; - We have this set returned in a horizontal mold containing a second layer of concrete intended to define a second concrete panel; - After at least partial drying of this second layer of concrete, the insulating wall is thus removed from the mold.

 A second variant of this process consists in that: - said insulating panel is provided, provided with mechanical connection means, vertically inside a vertical mold; - Concrete is poured inside said vertical mold, on either side of said insulating panel, this in order to define the two concrete panels; - After at least partial setting of the concrete, the mold is removed from the insulating wall thus obtained.

 According to another characteristic of this process, before placing said insulating panel in said mold, this insulating panel is completed, on either side, by a frame, in particular constituted by a wire mesh.

 An additional characteristic concerns the fact that said insulating panel is maintained inside said mold, this at a determined distance from the walls of this mold.

 The present invention further relates to an insulating wall device comprising, on the one hand, two concrete panels arranged facing one another and in a substantially parallel manner and, on the other hand, a panel in one insulating material of the expanded or extruded type sandwiched between the said concrete panels, characterized in that it comprises means intended to ensure a mechanical connection between the two concrete panels.

 Another characteristic of this device consists in that said mechanical connection means are defined by means, associated with said insulating panel, and designed capable of carrying out an attachment in concrete.

<Desc / Clms Page number 4>

 In fact, the attachment means are defined by at least one pin passing through said insulating panel and extending on either side of the latter.

 According to an additional characteristic, such a pin is defined by a bar, a rod or the like having a first portion extending inside said insulating panel as well as two other portions, each extending one end of said first portion, and s' extending inside a concrete panel.

 Yet another characteristic consists in that said pin is defined in a material resistant to corrosion or in a material receiving an anticorrosion treatment, this at least at the interface between said insulating panel and a concrete panel.

 In fact, at least the first pin portion, extending inside the panel of insulating material, is made of a corrosion-resistant material or a material receiving an anticorrosion treatment.

 According to another characteristic of this insulating wall device, the mechanical connection means are defined, at the level of said insulating panel, by means of retention of the concrete used in the composition of said concrete panels.

 In fact, the concrete retention means are defined by grooves or the like made at the side faces of the insulating panel.

 Yet another characteristic of this device consists in that it comprises two reinforcements arranged on either side of the insulating panel and extending, each, inside a concrete panel.

 In fact, the pin or pins are made integral with said frames, in particular by welding, ligature or the like.

 According to an additional characteristic, the concrete panels are defined from a self-compacting type concrete.

 The invention also relates to an installation for implementing the above-mentioned method and / or for manufacturing at least one above-mentioned insulating wall device and characterized by

<Desc / Clms Page number 5>

 the fact that it comprises a plurality of vertical molds arranged in a battery.

 The above invention has many advantages.

 Thus, the implementation of the method according to this invention advantageously results in a limited succession of steps.

 Another advantage of this process consists in that the molding makes it possible to give the concrete panels a perfectly smooth surface condition which does not require any additional intervention (smoothing, trowelling or other) and which immediately allows the completion of the finishing covering. of the wall, in particular by the installation of a wallpaper or a painting.

 Such molding can be carried out in a vertical mold which advantageously allows simultaneous production of the two concrete panels in a single concrete pour.

 In addition, the use of such a vertical mold makes it possible, on the one hand, to reduce substantially the space taken up on the ground compared to a mold of horizontal type and, on the other hand, to have, within 'A single installation, a plurality of vertical molds in battery for the manufacture, simultaneously or successively, of a plurality of insulating wall devices.

 In fact, the concrete used in the composition of the concrete panels is advantageously of the self-compacting type, which makes it possible to substantially improve the casting of the concrete, in particular in a mold. This allows, on the one hand, to confer excellent homogeneity and perfect distribution of the concrete intrinsically to the two concrete panels as well as at the interface between them and the panel of insulating material. This allows, on the other hand, the constitution of concrete panels of reduced thickness compared to the panels of the prior art.

 According to another advantage of the invention, such an insulating wall device comprises means intended to ensure a mechanical connection between the two concrete panels.

 Such means advantageously make it possible to make the concrete panels integral with one another and to immobilize these one with respect to the other.

<Desc / Clms Page number 6>

 In addition, said insulating wall device incorporates, at the level of the concrete panels, two reinforcements placed on either side of the insulating panel. This advantageously makes it possible to increase the rigidity of said insulating wall so as to allow its use as a load-bearing wall.

 Other objects and advantages of the present invention will emerge during the description which follows, relating to embodiments which are given only by way of indicative and nonlimiting examples.

 The understanding of this description will be facilitated by referring to the appended drawings in which: - Figure 1 corresponds to a schematic and perspective view of an insulating wall according to the present invention; - Figure 2 is a schematic view from above and in partial section of said insulating wall according to a first embodiment; Figure 3 is a view similar to the previous one and corresponding to an insulating wall according to a second embodiment; - Figures 4 to 7 are schematic views of different stages of the production of an insulating wall device, this in the case of a method using a horizontal mold; - Figures 8 to 10 are schematic views of different stages of the production of an insulating wall device, this in the case of a method using a vertical mold; - Figure 11 corresponds to a schematic view of an installation according to the invention and constituted by a succession of vertical molds arranged in a battery.

 The invention relates to the field of manufacturing insulating type wall devices.

 As visible in the appended figures, such an insulating wall device 1 comprises, on the one hand, two concrete panels 2, 3 placed opposite one another 2 and in a substantially parallel manner. This insulating wall device 1 comprises, on the other hand, a panel 4 made of an insulating material of the expanded or extruded type, in particular based on polyethylene and / or polyurethane or the like, such a panel 4 made of insulating material being sandwiched between said concrete panels 2.3.

<Desc / Clms Page number 7>

 According to the invention, this insulating wall device 1 comprises means 5 intended to ensure a mechanical connection between the two concrete panels 2,3.

 In fact and according to a first embodiment, such mechanical connection means 5 are defined by means 6, associated with said insulating panel 4, and designed capable of making a fastening in concrete of concrete panels 2,3.

 As shown in Figure 2, the attachment means 6 are defined by at least one pin 7 passing through said insulating panel 4. Such a pin 7 extends, on the one hand, on either side of this panel insulator 4 and, on the other hand, inside said concrete panels 2,3.

 In fact, such a pin 7 is defined by a bar, a rod or the like having, on the one hand, a first portion 8 extending inside said insulating panel 4 and, on the other hand, two other portions 9 ; 10, each extending one end 11; 12 of said first portion 8, and extending inside a concrete panel 2; 3.

 According to another characteristic of this pin 7, the latter 7 is defined in a rigid material, in particular a material of metallic type or the like.

 A particular embodiment of the invention consists in defining such a pin 7 in a material resistant to corrosion (in particular a stainless material, for example a stainless steel) or in a material receiving an anticorrosion treatment, this at least at the level of the interface 13 between said insulating panel 4 and a concrete panel 2; 3.

 Such an embodiment advantageously makes it possible to substantially reduce the risks of corrosion of such a pin 7 at the level of the insulator (4) / concrete (2; 3) interface 13.

 As shown in Figure 2 corresponding to a preferred embodiment of the invention, at least the first portion 8 of pin 7, extending inside the panel of insulating material 4, is made of a material resistant to corrosion or in a material receiving an anticorrosion treatment.

<Desc / Clms Page number 8>

 In this regard, it should be observed that the first portion 8 of such a pin 7 is preferably defined in a stainless material (in particular stainless steel or the like) or in a material covered with such a stainless material.

 However and according to another embodiment not shown, such a pin 7 can also, in its entirety, be defined in a material resistant to corrosion or in a material receiving an anticorrosion treatment, in particular of the aforementioned type.

 Yet another characteristic of such a pin 7 is that it can adopt a substantially rectilinear shape or even an "S" shape. However and according to a preferred embodiment, the first portion 8 of such a pin 7 forms with each of the other two portions 9,10 which constitute it an open angle as visible in FIG. 2, these two other portions 9,10 s' preferably extending in substantially parallel planes.

 According to another embodiment, the means 5 intended to ensure a mechanical connection between the two concrete panels 2,3 are defined, at the level of said insulating panel 4, by means 14 intended to ensure retention of the concrete entering into the composition of said concrete panels 2.3.

 Such concrete retention means 14 may consist of grooves 15 or the like defined at the side faces 16 of the insulating panel 4.

 In fact, such grooves 15 preferably adopt a dovetail profile (FIG. 3), in "0" or the like.

 In this regard, it will be observed that the mechanical connection means 5 defined by retention means 14 make it possible to ensure a mechanical connection between the two concrete panels 2,3, this through said panel of insulating material 4 itself.

 A particular embodiment, but not shown, consists in defining, at the level of said insulating panel 4, means of retention 14 of the concrete supplemented by means 5 of mechanical connection in the form of at least one pin 7 as mentioned above.

 According to another characteristic of the insulating wall 1, it also comprises two reinforcements 17, 18 arranged on either side

<Desc / Clms Page number 9>

 of the insulating panel 4 and each extending inside a concrete panel 2.3.

 The presence of such frames 17,18 makes it possible to give the insulating wall device 1 a rigidity such that its use as a load-bearing wall can be envisaged.

 In this regard, it should be noted that such a frame 17, 18 can be in different forms but preferably takes the form of a wire mesh 19 or the like resulting, in particular, from the assembly of rods 20 of metal or the like.

 Another characteristic visible in FIG. 2 consists in that the pin or pins 7, defining said mechanical connection means 5, are made integral with said frames 17, 18, in particular by welding, tying or the like.

 Such an embodiment makes it possible to strengthen the mechanical connection between the two concrete panels 2,3.

 However, when the mechanical connection means 5 are defined by concrete retention means 14 (FIG. 3), the insulating wall device 1 can be supplemented by means 21 designed capable of ensuring an additional mechanical connection between the concrete panels. 2.3. Such additional connection means 21 may consist of jumpers 22 or the like and make it possible to strengthen the mechanical connection between the concrete panels 2,3.

 Such jumpers 22 are preferably shaped as a "U", arranged on the periphery of the insulating wall device 1 and made integral with said frames 17,18, in particular by welding, tying or the like.

 In this regard, it should be noted that, according to a particular embodiment of the invention, such jumpers 22 can, again, come to complete mechanical connection means 5 constituted by pins 7 of the aforementioned type.

 According to another characteristic of the invention, the concrete panels 2, 3 are defined from a concrete of the self-compacting type. Such concrete has many advantages which will emerge from the following description.

<Desc / Clms Page number 10>

 The invention also relates to a method of manufacturing, by molding, an insulating wall device 1 as described above.

 Such a method consists in defining, at the level of the insulating panel 4, means 5 intended to ensure a mechanical connection between the two concrete panels 2; 3, this before placing this insulating panel 4 inside a mold 23 receiving concrete intended to define at least one concrete panel 2; 3.

 In Figures 4 to 7, there is shown a first variant of such a method consisting in using a mold 23 of the horizontal type.

 This process then consists in that: - a first layer of concrete 24 is poured into a horizontal mold 23 before having, inside this mold 23, the insulating panel 4 provided with mechanical connection means 5 (Figure 4); - After at least partial drying of the first layer of concrete 24, the mold is removed from the mold (FIG. 5) and the assembly of the assembly consisting of the insulating panel 4 with which the first layer of concrete 24 is associated defining a first panel in concrete 2; - We have this set (4,2) returned in a horizontal mold 23 (Figure 6) containing a second layer of concrete 25 for defining a second concrete panel 3; - After at least partial drying of this second layer of concrete 25, we proceed to demolding (Figure 7) of the insulating wall 1 thus obtained.

 In this regard, it should be observed that the assembly constituted by the insulating panel 4 and the first concrete panel 2 can be placed in a mold 23 in a manner which is substantially offset from this mold 23. Such an embodiment allows the production, at the level of the insulating wall device 1, of at least one step facilitating the positioning and assembly of several of these insulating wall devices 1 as well as the connection between such a device 1 and, as the case may be, the slab or foundations.

<Desc / Clms Page number 11>

 In Figures 8 to 10, there is shown a second variant of the method according to the invention and using a mold 23 of vertical type.

 This variant, corresponding to a preferred embodiment of the invention, and consists in that: - there is said insulating panel 4, provided with means 5 for mechanical connection, vertically inside a mold vertical 23 (Figure 8); - Concrete B is poured inside said mold 23, on either side of said insulating panel 4, this in order to define the two concrete panels 2; 3 (Figure 9); - After at least partial setting of the concrete, the insulating wall 1 thus obtained is removed from the mold (Figure 10).

 As mentioned above and whatever the variant of the method, before placing said insulating panel 4 in a mold 23, means 5 are defined at this insulating panel 4 intended to ensure a mechanical connection between the concrete panels 2.3.

 In this regard, it will be observed that, in the case of mechanical connection means 5 defined by pins 7, it is possible, first of all, to manufacture (in a manner known per se) such an insulating panel 4 to then equip the latter 4 with pins 7 which are engaged through this insulating panel 4.

 In the case of mechanical connection means 5 constituted by concrete retention means 14, such retention means 14 can be defined directly during the manufacture of the insulating panel 4 or subsequently and by machining of the latter 4.

 According to another characteristic of this process, before placing said insulating panel 4 in said vertical mold 23, this insulating panel 4 is completed, on either side, by a frame 17, 18, in particular constituted by a wire mesh 19 or the like.

 In this regard, it should be observed that, before having an insulating panel 4 fitted with reinforcements 17,18 in the vertical mold 23, these reinforcements 17,18 are made integral, as the case may be, with

<Desc / Clms Page number 12>

 mechanical connection means 5 (pins 7) and / or additional mechanical connection means 21 (jumpers 22).

 According to another characteristic of the invention, one of the steps of the method consists in producing a prefabricated element 27 intended to be placed inside a mold 23, such a prefabricated element 27 being constituted by an insulating panel 4 and by mechanical connection means 5, or even by reinforcements 17, 18 as well as, if necessary, by additional connection means 21.

 In this regard, it should be observed that the prior production of such a prefabricated element 27 greatly facilitates the subsequent manufacture of an insulating wall device 1 according to the invention (ease of handling, better rigidity of the insulating panel 4 .. .).

 Yet another characteristic of the invention relates to the fact that said insulating panel 4 (or even said prefabricated element 27) is maintained inside said mold 23, this at a determined distance from the walls 26 of this mold 23.

 Thus and according to the first variant of the manufacturing process (horizontal mold), this is ensured with respect to the wall 26 defining the bottom of the mold 23, this by means of shims interposed between this wall 26 of the bottom and , as appropriate, an armature 17,18 and / or the insulating panel 4 and / or at least one pin 7 and / or additional mechanical connection means 21. In addition, it is still possible to provide lateral support of this insulating panel 4 (or of said prefabricated element 27), this by interposing shims between the side walls of this mold 23 and, for example, said insulating panel 4.

 However, according to the second variant of the method according to the invention (vertical mold), the insulating panel 4 (or even of said prefabricated element 27) is maintained at a determined distance from the side walls 26 of the vertical mold 23.

 Again, such maintenance can be achieved by wedging said insulating panel 4 (or said prefabricated element 27) inside the mold 23, this by interposing shims between a side wall 26 of the mold 23 and, as the case may be, a reinforcement 17,18 and / or the insulating panel 4 and / or at least one pin 7 and / or connecting means

<Desc / Clms Page number 13>

 additional mechanical 21, this over at least part of the height of this insulating panel 4.

 Yet another characteristic consists in having said insulating panel 4 (or said prefabricated element 27) inside said vertical mold 23 in a manner substantially centered with respect to the side walls 26 of this mold 23. Such a method of embodiment makes it possible to produce an insulating wall device 1, the concrete panels 2,3 of which have substantially the same thickness, this thickness being at least equal to 4 cm, preferably 5 cm.

 Another characteristic of the invention consists in that the walls 26 of a mold 23 have a smooth internal surface which advantageously makes it possible to impart such a surface condition to the concrete panels 2; 3 of an insulating wall device 1 produced in such a mold 23.

 It will be observed that such a surface condition can, in particular, be obtained by using a mold 23 whose walls 26 are, at least in part, defined by a sheet metal plate or the like.

 In this regard, it should be noted that the smooth surface condition of these concrete panels 2; 3 advantageously allows the immediate application of a coating (tapestry, paint, etc.) on a rough formwork wall 1 according to the invention, this without prior dressing of this wall.

 One of the steps of this process consists in pouring into the mold 23 a concrete intended to constitute the concrete panels 2,3, this concrete being, advantageously, of the self-compacting type.

 Such self-compacting concrete has significantly better flow qualities than a traditional concrete so that this self-placing concrete flows much better than traditional concrete, especially in a mold, around elements immersed in this concrete or inside hollows (in particular means 14 for retaining concrete).

 This allows the realization of an insulating wall device 1 according to the invention, without the need to vibrate the concrete.

 These flow qualities also allow the production of an insulating wall device 1 including the concrete panels 2,3

<Desc / Clms Page number 14>

 are thin (at least 4 cm) compared to those of the insulating walls of the prior art.

 In addition, such flow qualities make it possible to use means 5 of mechanical connection defined by means 14 for retaining the concrete inside of which such a self-compacting concrete is liable to flow easily unlike a traditional concrete.

 In addition, these qualities advantageously make it possible to use a vertical type mold 23 (FIGS. 8 to 10), which allows a substantial reduction in the footprint generated by a mold for the manufacture of an insulating wall 1 .

 Also and according to another characteristic, the present invention also relates to an installation (28) for covering the process described above and / or for the manufacture of at least one device 1 for an insulating wall, in particular obtained by the application of said process.

 In fact, such an installation (28) is characterized by the fact that it comprises a plurality of vertical molds 23 arranged in a battery as shown in FIG. 11.

 Such an embodiment advantageously makes it possible to produce a plurality of insulating wall devices 1 having the aforementioned characteristics, this successively, or even simultaneously, and for a space requirement substantially reduced compared to horizontal molds.

 Although the invention has been described with reference to a particular embodiment, it is understood that it is in no way limited thereto and that it is possible to make various modifications to the forms, materials and combinations of these. various elements, without departing from the scope and spirit of the invention.

Claims (17)

1) Method for manufacturing, by molding, an insulating wall (1) comprising, on the one hand, two concrete panels (2,3) arranged facing one (2) of the other (3) and substantially parallel and, on the other hand, a panel (4) made of an insulating material of the expanded or extruded type sandwiched between said concrete panels (2,3), characterized in that one defines, at the level of this insulating panel (4), means (5) intended to ensure a mechanical connection between the two concrete panels (2,3), this before placing this insulating panel (4) inside a mold (23) receiving concrete intended to define at least one concrete panel (2; 3).  2) Method according to claim 1, characterized in that: - a first layer of concrete (24) is poured into a horizontal mold (23) before placing, inside this mold (23), the insulating panel (4) provided with mechanical connection means (5); - after at least partial drying of the first layer of concrete (24), the assembly (2; 4) consisting of the insulating panel (4) with which the first layer of concrete is associated is demolded and turned over 24) defining a first concrete panel (2); - We have this set (2,4) returned in a horizontal mold (23) containing a second layer of concrete (25) intended to define a second concrete panel (3); - After at least partial drying of this second layer of concrete (25), the insulating wall (1) thus obtained is removed from the mold.  3) Method according to claim 1, characterized in that: - there is said insulating panel (4), provided with means (5) of mechanical connection, vertically inside a mold (23) vertical; <Desc / Clms Page number 16>  - Concrete is poured inside said vertical mold (23), on either side of said insulating panel (4), this in order to define the two concrete panels (2; 3); - After at least partial setting of the concrete, the insulating wall (1) thus obtained is removed from the mold.  4) Method according to any one of the preceding claims, characterized in that, before placing said insulating panel (4) in said mold (23), this insulating panel (4) is completed, on both sides other, by a frame (17; 18), in particular constituted by a wire mesh (20).  5) Method according to any one of the preceding claims, characterized in that it ensures the maintenance of said insulating panel (4) inside said mold (3), this at a determined distance from the walls (26) of this mold (23).  6) Insulating wall device (1) comprising, on the one hand, two concrete panels (2,3) arranged facing one (2) from the other (3) and in a substantially parallel manner and, on the other hand, a panel (4) made of an insulating material of the expanded or extruded type sandwiched between said concrete panels (2; 3) characterized in that it comprises means (5) intended to ensure a mechanical connection between the two concrete panels (2,3).  7) insulating wall device (1) according to claim 6, characterized in that said means (5) of mechanical connection are defined by means (6), associated with said insulating panel (4), and designed capable of producing a hanging in concrete.  8) insulating wall device (1) according to claim 7, characterized in that the attachment means (6) are defined by at least one pin (7) passing through said insulating panel (4) and extending from one side and other of the latter (4).  9) insulating wall device (1) according to claim 8, characterized in that said pin (7) is defined by a bar, a rod or the like having a first portion (8) extending inside said panel insulator (4) as well as two other portions (9; 10), each extending one end (11; 12) of said first portion (8), and extending inside a concrete panel (2; 3 ). <Desc / Clms Page number 17>  10) Insulating wall device (1) according to any one of claims 8 or 9, characterized in that said pin (7) is defined in a corrosion-resistant material or in a material receiving an anticorrosion treatment, this at at least at the interface (13) between said insulating panel (4) and a concrete panel (2; 3).  11) Insulating wall device (1) according to claim 9, characterized in that at least the first pin portion (8), extending inside the panel of insulating material (4), is made in a material resistant to corrosion or in a material receiving an anticorrosion treatment.  12) insulating wall device (1) according to claim 6, characterized in that the means (5) of mechanical connection are defined, at said insulating panel (4), by means (14) for retaining the incoming concrete in the composition of said concrete panels (2,3).  13) insulating wall device (1) according to claim 12, characterized in that the means (14) for retaining the concrete are defined by grooves or the like made at the side faces (16) of the insulating panel (4) .  14) insulating wall device (1) according to any one of claims 6 to 13, characterized in that it comprises two frames (17; 18) arranged on either side of the insulating panel (4) and s ', each extending inside a concrete panel (2; 3).  15) Insulating wall device (1) according to claims 8 and 14, characterized in that the pin or pins (7) are made integral with said frames (17; 18), in particular by welding, ligature or the like.  16) Insulating wall device (1) according to any one of claims 6 to 15, characterized in that the concrete panels (2; 3) are defined from a concrete of the self-compacting type.  17) Installation (28) for implementing the method according to any one of claims 3 to 5 and / or for manufacturing at least one insulating wall device (1) according to any one of claims 6 to 16 and characterized by the fact that it <Desc / Clms Page number 18>  comprises a plurality of vertical molds (23) arranged in a battery.