EP2011616B1 - Insulation body for a thermally insulated concrete wall and thermally insulated concrete wall and method for its manufacture - Google Patents

Abstract

A sealing body (2) has a sealing plate (3) and fixing elements (5) protruding on the sealing plate (3), spaced part and fixed on a flat-face (12) for the concrete. A totally flat sealing layer or path (22) is provided on the flat-face (12) which is seal-joined with the plate (3) and the fixing elements (5). Independent claims are given for the following. (1) (A) A sealed wall of concrete and sealing (2) (B) A method for fabricating a sealed wall of concrete with seal.

Description

The present invention relates to an insulating body for a thermally insulated wall made of concrete and insulation, with an insulating board and with, which are arranged on the insulation board above, spaced from each other on a concrete associated flat side. The invention also relates to a wall made with the insulating body and a method for producing the same.

Thermally insulated precast walls are known in a variety of embodiments. They are usually produced as a core insulated sandwich prefabricated wall or as a one-sided external insulated composite prefabricated wall. To rationalize such prefabricated part walls are usually prefabricated in a factory, then transported to the site and completed there. The state of the art is exemplified in the documents US 2001/010140 A1 . JP 05 310 490 A . US 6,729,094 B1 . EP 1 582 634 A1 and the utility model DE 20 2005 017046 U1 directed.

The font US 2001/0010140 A1 describes a building element with two parallel welded wire mesh reinforcing mats, with straight reinforcing bars that hold the reinforcing mats at a predetermined distance and are connected at their ends to the two mats. An insulating body is arranged between the reinforcing mats, which penetrate and fix the reinforcing bars. The reinforcing bars holding the insulating body extend in predetermined different directions with respect to the reinforcing grid mats and hold the insulating body at a predetermined distance from each of the reinforcing mats. The reinforcing mats and the reinforcing bars are designed, arranged and welded together so that the building element meets the static requirements.

The publication JP 05 310 490 A discloses a thermally insulated precast wall with an insulating body having an insulating board and fixing elements, which are attached to the insulation board protruding, spaced from each other on a concrete associated flat side. The insulation board is designed as foam-filled Dämmpaneele, which has a dimensionally stable molded plastic material hollow profile, the cavity is filled after spraying with insulating foam. The rail-like fixing elements are embedded with their lower flange in the panels, wherein the lower flange is encapsulated in particular during the manufacture of the hollow profile.

The patent US Pat. No. 6,729,094 B1 discloses a thermally insulated prefabricated concrete outer shell having a support structure for interior lining the wall with gypsum boards, wood paneling or the like. Between profile rails that form the supporting structure, appropriately tailored insulation boards can be introduced before attaching the inner shell. The thermally insulated outer shell has an outer concrete plate provided with a grid reinforcement, and an inner insulation board fixedly connected to the concrete slab. The insulation board is held by the U-shaped rails of the support structure to the concrete slab. These are the rails with anchored metallic connectors on the concrete slab, which penetrate the insulation board and are embedded with a hook-shaped foot in the concrete slab.

In the published patent application EP 1 582 634 A1 a basement wall is described as prefabricated, which has an inner wall in the form of a massive building board and a heat-insulating outer wall, wherein between the inner wall and the heat-insulating outer wall, a concrete wall is arranged. The heat-insulating wall is provided on the side facing the inner wall with a layer of bitumen, which is in contact with the concrete wall.

However, their size is limited due to the transport dimension and the transport weight to the site. Due to their weight, the transport and installation at the construction site is complex and costly. Therefore, for example, externally insulated composite walls are increasingly cast on the site using factory-made prefabricated thermal insulation bodies, which already have fixing elements for embedding in the concrete. The necessary sealing work to the concrete shell of the thermal insulation composite wall carried out in the case of known thermal insulation bodies in addition on site.

The utility model DE 20 2005 017 046 U1 discloses such an insulating body according to the preamble of claim 1, as well as the method for its manufacture. The insulating body proposed there has at least one insulating panel, at least on one side of the insulating board attached to this, spaced apart and perpendicular to the flat side arranged fixing elements, and at least one of the fixing elements away from the insulating board to this reinforcing reinforcement mat. On the side facing away from the insulation board side of the fixing and / or the reinforcement mat spacers are provided.

To create such a wall, the craftsmen usually have to approach the construction site several times in order to be able to carry out the insulation, sealing and concrete work in succession. This extends the construction time for such Wall and also increases their production costs. Therefore, it is desirable to minimize the burden of on-site sealing work.

The invention is therefore based on the object to propose a possibility in which the production of a thermal insulation composite wall is simplified and which also allows to put insulated concrete walls on the construction site faster, especially in the basement area. For this purpose, an optimized insulating body is to be made available.

This object is achieved by an insulating body with the features of claim 1 and by a wall made with such insulating body with the features of claim 8, and by a method for producing the same according to the independent claim. 9

The insulating body according to the invention has on the flat side with the fixing elements on a full-surface sealing layer or web, which is connected to the insulation board and the fixing elements. The sealing layer or track forms a barrier to water or water vapor between the insulation board and the concrete shell of the wall. It is sealingly connected to the fixing elements and with the insulation board, at least linearly at the edges. In this case, the fixing elements are designed as profile rails, which have a lower flange and a truss, which protrudes perpendicularly from the lower flange and wherein spacers are arranged on the insulation board of the distal ends of the truss. In this case, the measured perpendicular to the lower flange height of the truss of the rail with variation of the spacer is arbitrary. It is also possible to dispense entirely depending on the design of the lower flange on the framework. With the bottom flange of the rails are attached to the insulation board. The lower flange may be formed with engagement legs pointing in the direction of the insulating panel for engagement in corresponding grooves of the insulating panel. Thus, the fixing elements are securely and force-transmitting fixable to the insulation board, so that the insulation board is firmly connected after concreting the wall with the concrete shell.

The layer or web can be attached to the insulating body in the factory or on site at the construction site to cover one of the concrete shell of a wall associated flat side of the insulation board. In this case, the cover of the insulating board by means of the layer or web in each case after the fixing elements are spaced apart, arranged above the flat side of the insulating board and fixed, preferably glued. The sealing layer can be produced as a thick or thin coating, for example by brushing, trowelling or spraying a sealant. As sealing compound, it is possible to use all suitable materials known to the person skilled in the art, for example bitumen, plastic, bituminous plastic combinations or mineral sealing slurries or crystalline sealing systems. The sealing web, for example of the same material as the aforementioned masses or metal, a mineral geotextile or composite materials such as acrylic coatings with pressure sensitive protective adhesive and HDPE geomembrane, can be glued to the insulation board. In this case, the geomembrane may be formed as a thick sealing skin or as a thin sealing film, which is preferably assembled according to the distance of the fixing elements. As an adhesive, other suitable materials can be used in addition to the aforementioned sealants. The adhesive for the sealing web may be provided as an adhesive bed on the insulating board or as an adhesive coating on the sealing web.

The fixing elements of the insulating body extend in the installation position of the insulating body substantially vertically and are distributed over the entire width of the flat side in approximately evenly. You can have the usual lattice girder profile to fix the insulation board later during concreting. Preferably, the insulating body according to the invention is unreinforced. However, it may also be formed reinforced and have at least one of the fixing elements arranged away from the insulation board reinforcing mat, which on the insulation board remote ends or in a central region of the fixing is attached. In this case, the spacers, which establish a distance from the outer surface of the later concrete wall, may be attached to the reinforced insulating body to the fixing elements and / or reinforcing mat.

In one embodiment, the insulation board has a plurality of adjoining insulation board elements in series, the elements at abutting edges by means of clips and / or the fixing elements are held together. The sealing layer or web engages over the abutting edges, the clamp and the fixing elements sealingly. In this way insulating body different widths can be easily, quickly and inexpensively manufactured. It is advantageous to form the clamp element corresponding to the lower flange of the profile rail, so that the clamp element can be fastened in the same way and just as securely as the fixing element to the insulation board or the insulation board elements.

Advantageously, the sealing layer or web is cohesively connected to the insulating board and with the fixing elements, preferably on the lower flange, and possibly with the clip elements. Thus, the layer or web is secure, non-detachable and sealingly attached to the insulation board and the fixing elements or the clip elements. The layer is applied directly over the entire surface and the web at least at the edges, but preferably the entire surface with the insulating board and the fixing elements, and if present also with the clip elements, glued.

Such a wall may have one or more insulating bodies depending on their size and on the size of the insulating panels. If a plurality of insulating bodies are used, the sealing layer or web preferably has an overlap to an insulating panel of an adjacent insulating body. The overlap covers and seals a gap between the opposite end faces of the insulation boards. The covering of the joint is in this case by a narrow sealing strip in the form of a layer or web. The strip must be applied before the Formwork is closed flat after insertion of the insulating body. In this case, the overlap may be formed and applied in accordance with the sealing full-surface layer or web of the insulating body. It is also possible to use overlapping suitable materials other than the layer or web, or to combine one layer with a web or vice versa. If a strip-shaped path is used as an overlap to the adjacent insulating body, the connection can be made by gluing by means of cold welding instead of gluing with a suitable material combination. If a web is used to seal the insulating board, it is possible to prefabricate the web blank preferably such that the web has a projection over the end face of the insulating board, which can be used to bridge the gap.

The wall according to the invention is produced using an insulating body with the features described above. The insulating body according to the invention is placed standing in a Schaluhgsraum which is formed according to the size of the wall to be produced. Corresponds to the insulating body of the size of the formwork space, so the introduction from above can be done with shuttering space closed. If more than one insulating body is required, the introduction must be done on the flat side not yet closed formwork space from the flat side. Before the formwork space is closed at the side, the insulating body must be fixed in the formwork space such that they are supported with the insulation board on the formwork. Subsequently, the sealing of the joints must be done between the insulation boards of the insulating body. Thus, it is possible to produce a one-sided insulated concrete wall, with or without reinforcement, in a vertical orientation, wherein the free formwork space, which is determined by the at least one insulating body and the fixing elements associated flat side formwork and in which the Fixing elements and possibly extend the reinforcement mats, can be filled from above with in-situ concrete.

• Herstellen und Bereitstellen mindestens eines Dämmkörpers, mit einer Dämmplatte, daran angebrachten als Profilschienen ausgebildeten Fixierelementen, mit Abstandshaltern und mit einer vollflächigen abdichten Schicht oder Folie;
• Bereitstellen eines aufrecht stehenden, vorzugsweise an einer Flachseite offenen Verfüllraumes;
• Ausrichten der Dämmplatte des Dämmkörpers zu der geschlossenen Flachseite des Verfüllraumes und Einbringen des mindestens einen Dämmkörpers;
• Ggf. Abdichten einer Fuge zwischen den Dämmplatten von benachbarten Dämmkörpern mittels einer streifenförmigen abdichtenden Schicht oder Bahn;
• Schließen der offenen Flachseite des Verfüllraumes; und
• Verfüllen des zwischen der abdichtenden Schicht oder Bahn des mindestens einen Dämmkörpers und der Schalung gebildeten Hohlraumes mit Ortbeton.

According to the method according to the invention, the production of a single-sided composite concrete wall, sealing and insulation, takes place in the following steps:

• Producing and providing at least one insulating body, with an insulating board attached thereto as a profile rails formed fixing elements, with spacers and with a full-surface sealing layer or film;
• Providing an upright filling space, preferably open on a flat side;
• Aligning the insulation board of the insulating body to the closed flat side of the filling space and introducing the at least one insulating body;
• Possibly. Sealing a joint between the insulation panels of adjacent insulation bodies by means of a strip-shaped sealing layer or sheet;
• Closing the open flat side of the filling space; and
• Backfilling the cavity formed between the sealing layer or web of the at least one insulating body and the formwork with in-situ concrete.

• Bereitstellen einer Dämmplatte oder von mindestens zwei Dämmplattenelementen, sowie von Fixierelementen und Abstandshaltern, und ggf. von Klammerelementen;
• Ggf. Verbinden der Dämmplattenelemente zu einer einreihigen Dämmplatte durch Klammern mittels den Klammerelementen und/oder den Fixierelementen auf einer dem Beton zugeordneten Flachseite der Dämmplatte;
• Verkleben der Fixierelemente und ggf. der Klammerelemente mit der Dämmplatte in einen bestimmten Abstand zueinander auf der Flachseite;
• Bereitstellen einer abdichtenden Bahn oder einer Dichtmasse für eine abdichtende Schicht;
• Aufbringen einer vollflächigen abdichtenden Schicht oder Aufkleben einer vollflächigen abdichtenden Bahn auf die Flachseite der Dämmplatte mit den Fixierelementen und ggf. mit den Klammerelementen; und
• Anbringen der Abstandshalter an den Fixierelementen.

The insulating body is made as follows:

• Providing an insulation board or at least two insulation board elements, as well as fixing elements and spacers, and possibly of clip elements;
• Possibly. Connecting the insulation board elements to a single-row insulation board by means of clips by means of the clamping elements and / or the fixing elements on a flat side of the insulation board assigned to the concrete;
• Gluing the fixing and possibly the clip elements with the insulation board in a certain distance from each other on the flat side;
• Providing a sealing sheet or sealant for a sealing layer;
• Applying a full-surface sealing layer or sticking a full-surface sealing sheet on the flat side of the insulation board with the fixing elements and possibly with the clamping elements; and
• Attaching the spacers to the fixing elements.

With the insulating body designed according to the invention, insulated concrete walls can be easily manufactured, in particular in the basement area with shell-smooth interior walls and external insulation. The vertical production of the walls directly at the site reduces the workload, in particular the sealing effort, and shortens the construction time and also reduces the cost of production.

The invention will be explained in more detail with reference to two embodiments. The subject matter of the present invention results not only from the subject matter of the individual claims for protection, but also from the combination of the individual claims for protection with one another. Further features of the invention will become apparent from the following description of the embodiments of the invention in conjunction with the claims and the accompanying drawings.

Figur 1

einen Horizontalschnitt durch eine gegossene geschalte erfindungs- gemäße Wärmedämm-Verbundwand mit einem ersten erfindungs- gemäßen Dämmkörper, der eine einstückige Dämmplatte aufweist;

Figur 2

einen Vertikalschnitt durch die Wärmedämm-Verbundwand gemäß Figur 1 ohne gegossene Innenschale; und

Figur 3

einen Horizontalschnitt einen zweiten erfindungsgemäßen Dämm- körper, der eine mehrstückige Dämmplatte aufweist; in einer schematischen Darstellung.

Here are from the figures of the drawing and its description further essential features of the invention. They show:

FIG. 1

a horizontal section through a molded-connected inventive thermal insulation composite wall with a first inventive insulating body having a one-piece insulation board;

FIG. 2

a vertical section through the thermal insulation composite wall according to FIG. 1 without cast inner shell; and

FIG. 3

a horizontal section a second Dämm- inventive body, which has a multi-piece insulation board; in a schematic representation.

FIG. 1 shows a thermal insulation composite wall 1 according to the invention, with two laterally adjoining Dämmkörpern invention 2, in a finished, but not yet turned off state. The insulating body 2 has an insulation board 3 for external insulation of a concrete Inner shell 4 of the wall 1 and a number of fixing elements 5 for fixing the insulation board 3 to the inner shell 4. The insulating body 2 is located with an outer flat side 6 of its insulation board 3 to an outer formwork 7 and is supported by spacers 8 on an inner formwork 9 from. The insulation board 3 and the inner formwork 9 limit a filling space 10 flat side. The filling space 10 is in FIG. 1 filled with in-situ concrete. The two insulation boards 3 of the two insulating body 2 abut the front side to form a joint 11 to each other, which may be filled with an adhesive.

From one of the inner shell 4 facing flat side 12 of the insulation board 3, the fixing elements 5 are spaced from each other, arranged perpendicular to the flat side 12. In addition, the spacers 8 are attached to the insulation board 3 distant ends 13 of the fixing elements 5. The fixing elements 5 are formed as profile rails 14. These have a lower flange 15 and a truss 16 protruding perpendicularly from this. The truss 16 of the rail 14 is formed by a conventional lattice girder profile, wherein the rail 14 is fixed to the lower flange 15 of the insulation board 3. The fixing elements 5 are stably fixed to the insulation board 3 with an adhesive, not shown in the drawing, to securely fix the insulation board 3 after removal of the formwork 7, 9 of the composite wall 1 made of concrete and insulation. The fixing elements can also be used to lift the insulating body with the help of a lifting device, such as a construction site crane in the determined by the formwork 7, 9 filling space 10.

The rails 14 are arranged side by side over the entire width of the flat side 12 at a certain distance from each other on the insulating board 3 and extend from an upper edge 17 vertically up to a lower edge 18 of the insulation board 3. The insulating body 2 corresponds to the height of the composite wall. 1 , so that no horizontal joints between the insulation boards 3 occur. For secure attachment of the rails 14 on the insulation board 3, which preferably consists of a foam insulating, the lower flange 15 in the direction of the insulation board, 3 extending engaging leg 19, which in engage according to complementary trained engagement grooves 20 of the insulation board 3. Thus, the fixing elements 5 are held securely and force transmitting to the insulation board 3. The inner shell 4 may have a not shown in the drawing reinforcement grid between one of the inner formwork 9 specific inner side 21 of the inner shell 4 and the inner flat side 12 of the insulation board 3, which need not be connected to the fixing elements 5.

To protect the insulation board 3 from moisture penetrating a full-surface seal is provided between the inner shell 4 of the wall 1 and the insulation board 3 of the insulating body 2. The sealing takes place in the embodiment shown in the figures with a film as a sealing web 22 which is applied in webs between the fixing elements 5 and sealingly connected respectively with the insulating board 3 and the lower chords 15 of the fixing elements 5, preferably glued areally. The sealing film 22 covers the vertical joints 11 between the insulation boards 3. For this purpose, the sealing film 22 has a lateral overlap 23 which is sealingly connected to the sealing film 22 of the adjacent insulating body 2.

FIG. 3 shows a second insulating body 2 according to the invention for a thermal insulation composite wall 1 according to the invention, which is composed of a plurality of insulation board elements 26. The insulation board elements 26 are arranged horizontally next to one another in a row. They connect directly to each other and are held together at abutting edges 27 by means of clamping elements 28 and fixing elements 5. In this case, the clip elements 28 and the fixing elements 5 each cover a gap 29 between the Dämmplattenelementen 26. The sealing sheet 22 overlaps the abutting edges 27 and is except for the insulating board 3 with the clamping elements 28 and the fixing elements 5, for example, by a double-sided tape, sealingly connected , The clip elements 28 and the fixing elements 5 connect the insulation board elements 26 in an alternating sequence, wherein the outer vertical edges 30 of the insulating body 2 each have a rail 14 is provided.

Claims (11)

1. Insulating body (2) for a thermally insulated wall (1) made of concrete and insulation, with an insulating panel (3) and with fixing elements (5) which, protruding on said insulating panel (3), are fastened, in a manner spaced apart from one another, to a flat side (12) associated with the concrete, characterised by a sealing layer or web (22) over the entire surface area on the flat side (12), which is connected in a sealing manner to the insulating panel (3) and fixing elements (5), and by fixing elements (5) which are constructed as profiled rails (14) and have a lower flange (15) and a latticework (16) which projects perpendicularly from the lower flange (15), said lower flange (15) being fastened to the insulating panel (3) and spacers (8) being arranged on those ends (13) of the latticework (16) which are remote from the insulating panel (3).
2. Insulating body according to claim 1, characterised in that the insulating panel (3) has a number of insulating-panel elements (26) which adjoin one another in a row and are held together, at abutting edges (27), by means of clamping elements (28) and/or the fixing elements (5), the sealing layer or web (22) engaging over the abutting edges (27) and the clamping elements (28) in a sealing manner.
3. Insulating body according to claim 1 or 2, characterised in that the clamping element (28) is constructed in a manner corresponding to the lower flange (15) of the profiled rail (14).
4. Insulating body according to one of the preceding claims, characterised in that the sealing layer or web (22) is connected, in a firmly bonded manner, to the insulating panel (3) and to the fixing elements (5).
5. Insulating body according to one of the preceding claims, characterised in that the sealing layer or web (22) is connected, in a firmly bonded manner, to the insulating panel (3) and the fixing elements (5) and also to the clamping elements (28).
6. Insulating body according to claim 4 or 5, characterised in that the sealing layer or web (22) is connected over the entire surface area, in a firmly bonded manner, to the clamping elements (28) and/or to the insulating panel (3) and also to the fixing elements (5).
7. Insulating body according to one of the preceding claims, characterised in that the sealing layer or web (22) has an overlap (23) in relation to an adjacent insulating body (2).
8. Insulated wall (1) made of concrete and insulation, characterised by at least one insulating body (2) according to one of the preceding claims 1-7.
9. Method of manufacturing an insulated wall (1) made of concrete and insulation according to claim 8, characterised by the following steps:

   • the manufacture and preparation of at least one insulating body (2) with an insulating panel (3), fixing elements (5) attached thereto and constructed as profiled rails (14), with spacers (8) and with a sealing layer or web (22) over the entire surface area;

   • the preparation of an upright filling-in space (10) which is preferably open on one flat side (24);

   • the orientation of the insulating panel (3) of the insulating body (2) in relation to the closed flat side (25) of the filling-in space (10) and the installation of the at least one insulating body (2);

   • the sealing of a joint (11) between the insulating panels (3) of adjacent insulating bodies (2) by means of a strip-shaped sealing layer or web (22);

   • the closing of the open flat side (24) of the filling-in space (10); and

   • the filling-in of the cavity formed between the sealing layer or web (22) of the at least one insulating body (2) and the shuttering (9) with site-mixed concrete.
10. Method according to claim 9, characterised in that the insulating body (2) is manufactured in the following steps:

    • the preparation of an insulating panel (3), of fixing elements (5) constructed as profiled rails (14) and of spacers (8);

    • the bonding of the fixing elements (5) to the insulating panel (3) at a certain distance from one another on the flat side (12);

    • the preparation of a sealing web or a sealing compound for a sealing layer;

    • the application of a sealing layer or the bonding of a sealing web (22), over the entire surface area, onto the flat side (12) of the insulating panel (3) with the fixing elements (5); and

    • the attachment of the spacers (8) to the fixing elements (5).
11. Method according to claim 9, characterised in that the insulating body (2) is manufactured in the following steps:

    • the preparation of at least two insulating-panel elements (26), and also of fixing elements (5) constructed as profiled rails (14) and of spacers (8), and also of clamping elements (28);

    • the connection of the insulating-panel elements (26) to form a single-row insulating panel (3) by clamping by means of the clamping elements (28) and/or of the fixing elements (5) on a flat side (12) of the insulating panel (3), which flat side is associated with the concrete;

    • the bonding of the fixing elements (5) and/or of the clamping elements (28) to the insulating panel (3) at a certain distance from one another on the flat side (12);

    • the preparation of a sealing web or of a sealing compound for a sealing layer;

    • the application of a sealing layer over the entire surface area, or the bonding of webs (22) that effect sealing in a laminar manner, onto that flat side (12) of the insulating panel (3) on which the fixing elements (5) and the clamping elements (28) are arranged; and

    • the attachment of the spacers (8) to the fixing elements (5).

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