DE102008005491B4 - Process for the production of a transportable, prefabricated composite wall element made of shuttering blocks - Google Patents

Abstract

Method for producing a transportable, prefabricated composite wall element (1) from formwork blocks (4), in particular wood chip formwork blocks, which have cavities (24) and recesses (26) for continuous filling of the composite wall element (1) with concrete, in particular ready-mixed concrete, characterized by the following method steps :- arranging panel-shaped module elements (2), in particular insulation or wall cladding elements, along an assembly level (6) of a support device, the module elements (2) arranged above and/or next to each other having a flat contact surface (10) facing away from the assembly level (6) and a forming a flat outer wall element surface (12) facing the assembly level (6) of an endless wall,- arranging formwork blocks (4) in rows along the flat contact surface (10) of the module elements (2) in such a way that a wall panel (28) bricked in association forms an endless wall with at least one cavity (24) that can be continuously filled with concrete stands, wherein the formwork blocks (4) are glued to each other and to the module elements (2) when they are placed on top of each other, so that the side walls (22) of the formwork blocks (4) facing away from the module elements (2) have a flat inner wall element surface (34) of the Forming an endless wall, cutting the endless wall formed from formwork blocks (4) and modular elements (2) in a direction essentially orthogonal to the rows of formwork blocks (4) into a composite wall element (1) or at least two individual wall element pieces (1.1, 1.2, 1.3) of the composite wall element (1), wherein the cutting angle (α) to the plane of the outer wall element surface (12) can be variably adjusted,- Fastening a plate-shaped stiffening element made of a glued wooden board or a galvanized sheet metal rail, which has recesses for the passage of concrete, on at least one end face the wall panel (28) of the composite wall element (1) or one of the wall element pieces (1.1, 1.2, 1.3), in which the stiffener ing element is glued, nailed or screwed to the end faces of the formwork blocks (4), belt loops being arranged on the stiffening elements for moving and transporting the composite wall element (1) produced, which are glued and nailed to the stiffening elements,- the individual cut wall element pieces (1.1, 1.2, 1.3) are joined together and glued on the support device, either directly to one another to form a composite wall element (1) or indirectly to one another by means of a lintel element (96a, 96b), by means of a parapet element (98), by means of a duct and/or by means a window or door element (104, 106).

Description

The invention relates to a method for producing a transportable, prefabricated composite wall element from formwork blocks, in particular wood chip formwork blocks, according to the preamble of claim 1 and a composite wall element which was produced using this method.

In the field of construction, it has long been known to use shuttering blocks to erect building walls. For this purpose, the formwork blocks, which have a cavity, are placed one on top of the other and next to each other in the association like conventional masonry. Due to the flat side surfaces and the low weight of formwork blocks, they can also be processed by non-construction professionals, especially since the formwork blocks can be placed seamlessly on top of and next to each other.

After arranging the formwork blocks in the bond, the resulting wall has a cavity which extends in the vertical direction from the top row of blocks to the bottom row of blocks and can be filled with concrete. In this way, there is the possibility of erecting a monolithic wall without formwork elements that are complicated to set up.

In addition to the low weight and the good workability with simple means, wood chip formwork blocks can still be produced in an energy-saving and climate-friendly manner. For this purpose, wood is chipped, mineralized and bound with cement in a known manner. The formwork blocks known from the prior art are preferably rectangular and have cavities in the vertical direction. In addition, recesses are provided on the front sides of the formwork blocks, so that after the stacking of individual rows of such blocks to form a building wall, there is a vertical and horizontal cavity that can be filled with concrete to produce a monolithic wall.

In the DE 200 15 912 U1 a prefabricated wall element is described in this context, which is made of wood chip formwork blocks. To produce the wall element, the wood chip formwork blocks are placed on top of and next to each other and glued together. Due to the low weight of chipboard shuttering blocks, this wall element is easy to transport and can therefore be prefabricated off-site.

the EP 1 111 150 A1 discloses a method for producing a transportable, prefabricated building wall element, which can be used as an external wall, from shuttering blocks, in which the shuttering blocks are first arranged along a support surface that is slightly inclined relative to the vertical and are glued together, resulting in an endless blank for wall elements, which is only then additionally covered with an endless insulating layer. The document gives no indication of first arranging the module elements, ie the insulation and wall cladding elements, along a mounting plane of a support device and then subsequently placing the shuttering blocks in the form of rows on top of one another and gluing them to the module elements. In addition, the person skilled in the art does not find the document to indicate that plate-shaped stiffening elements should be attached to the end faces of the wall element pieces, on which webbing loops are arranged for moving and transporting the wall element pieces.

Finally describes the DE 92 00 057 U1 a prefabricated, transportable piece of masonry in the form of a ready-made wall panel, which is pressed together by a tensioning strap that is guided around the end faces of the wall panel. To transport the masonry part, the strap can be lengthened at the upper corners of the masonry part and formed into loops. The document gives no indication of arranging plate-shaped stiffening elements on the end faces of the masonry part, to which webbing loops are attached by gluing or nailing, and of joining two masonry parts formed in this way and gluing them together.

After transporting the previously described prefabricated wall elements made of wood chip formwork blocks to the construction site, they are set up at the point provided for the wall, with adjacent wall elements being connected to one another using assembly elements. After filling the cavities of the wall elements with concrete, thermal insulation and exterior and interior wall plaster with plaster primer must be applied to the outer and inner wall surfaces in addition to the electrical, water and heating installation lines. Usually this work is carried out in the traditional way by construction professionals, which is quite expensive due to the high labor and travel costs and the progress of this work depends on the weather conditions prevailing on the construction site. In addition, the quality and dimensional accuracy of wall elements erected on the construction site depends to a large extent on the organization of the construction site and can vary accordingly.

Accordingly, it is an object of the present invention to provide a method for producing a prefabricated composite wall element, which is also referred to below as a building wall element, and an easily transportable composite wall element produced by this method, which facilitate the construction of a building, the construction time on the construction site considerably shorten and enable a constant quality.

This object is solved according to the invention by the features of claims 1 and 28.

Further features of the invention are contained in the subclaims.

According to the invention, in a method for producing a transportable, prefabricated composite wall element from shuttering blocks, in a first method step, plate-shaped module elements are arranged along an assembly plane of a support device. The module elements lie flush with one of their flat outer surfaces on the assembly level. The module elements arranged above and next to one another in this way along the assembly plane are arranged in such a way that the module elements form a flat outer surface on the side facing away from the assembly plane, which serves as a contact surface for the formwork blocks.

In order to prevent a number of module elements from slipping or shifting relative to one another when arranging a plurality of module elements along the assembly plane, provision can be made for the module elements to be connected to one another at their end faces, in particular glued. In order to arrange the module elements seamlessly next to and on top of each other, it can also be provided, as an alternative to gluing, that after the arrangement on the assembly level, a compressive force acting parallel to the level of the assembly level is applied to the module elements, which presses the end faces of the module elements flush against one another . The module elements are preferably thermal insulation boards, in particular soft wood fiber insulation boards, or panel-shaped elements made of plasterboard or another material, which have two planes or surfaces arranged parallel to one another, with which they can be arranged on the mounting plane. As an alternative to the use of module elements made of one insulating material, it can also be provided according to the invention that module elements made of different insulating materials are arranged next to or one above the other. To produce an outer wall with a photovoltaic system, it is possible, for example, to arrange containers made of zinc sheet along the assembly level in addition to the insulating elements, which have the same cross-sectional thickness as the insulating elements and accommodate the solar modules after the production of the composite wall element. In this context, the containers for receiving the solar modules can have a drive that changes the angle of the solar modules to the outer wall element surface depending on the position of the sun. In order to avoid thermal bridges in the area of these containers, they can have a thermal insulation layer on the rear side facing away from the mounting level. On the other hand, however, it can also be provided that an insulating element with a lower heat transfer coefficient is arranged in the area of the container, so that the k-value of the composite wall element is essentially the same.

After a first wall section has been created from modular elements, in a second method step, formwork blocks, in particular wood chip formwork blocks, are arranged in rows one on top of the other along the flat outer surface of the modular elements. By arranging the formwork blocks, the cavities of the formwork blocks arranged one above the other and next to one another form a continuous cavity in the wall panel, with the butt joints of the formwork blocks arranged in rows lying one above the other being offset from one another. Before the formwork blocks are placed on or next to each other in the association, an adhesive is applied to the flat outer surface of the module elements and to the top, bottom and front sides of adjacent formwork blocks, so that the formwork blocks are glued both to each other and to the module elements. The adhesive used for this purpose is preferably an adhesive that is tailored to the module elements, for example PUR foam when using insulation boards made of Styrofoam, polyurethane or polystyrene rigid foam. The adhesive can be applied to the adhesive surfaces of the shuttering blocks and the module elements with a spray gun. Furthermore, it can be provided that a suitable adhesive is used for the bonding of module elements and formwork blocks as well as for the bonding of the formwork blocks to one another.

The arrangement of the module elements on the assembly level and the arrangement of the formwork blocks along the flat outer surface of the module elements results in a continuous wall in the composite system, which has both a flat outer wall element surface facing the assembly level and a flat inner wall element surface facing away from the assembly level, which consists of the side walls of the formwork blocks are formed. The flat wall element surfaces of the composite wall element are here with a high Dimensional accuracy can be produced, so that less adhesive material is required to bond the module elements to the formwork blocks and when applying an exterior or interior wall plaster there is no need to compensate for unevenness, which reduces the amount of plaster material compared to a conventionally manufactured wall.

After the production of such a composite wall made of formwork blocks and modular elements, which is referred to below as an endless wall and can have any length, in a third process step it is cut to size into a composite wall element or at least two individual wall element pieces according to the dimensions required for erecting a building. For this purpose, a cutting device, for example a chain saw, is provided on the supporting device, which enables the wall element to be cut orthogonally to the rows of formwork blocks. For this purpose, the wall element can preferably be displaced along the assembly plane in the direction of the sawing device, with the assembly plane and the plane that supports the composite wall element on the underside being designed as sliding surfaces.

According to the invention, the cutting angle of the sawing device can be adjusted as desired, preferably in a range from 0° to 180° to the plane of the outer wall element surface, whereby the composite wall element or the at least two individual wall element pieces can also be mitred. When assembling two composite wall elements, e.g. at an angle of 90° for the corner area of a building, there is the advantage that with a cutting angle of 45° each, the composite wall elements only have to be glued flush to each other at their abutting surfaces. The cavities of the wall panels, which extend in the vertical and horizontal directions, are connected to one another by the flush bonding of the composite wall elements. After the interconnected cavities of the two composite wall elements have been poured with concrete, in particular ready-mixed concrete, these are connected to one another both via the adhesive connection in the corner area and via the concrete skeleton formed in the cavities. Furthermore, there is the advantage that the abutting surfaces of two abutting composite wall elements produced according to the invention have a large adhesive surface and thus a good bond between the composite wall elements is ensured. In addition, the flush connection of the composite wall elements prevents the formation of thermal bridges in the area of the joint. When using modular elements made of a thermal insulation material, the composite wall element produced according to the invention can be used, for example, as an outer wall for a building.

By prefabricating the composite wall element outside the construction site, i.e. in the factory, there is no need for scaffolding on the construction site to attach modular elements. Thus, a wall element for a building can be produced in a short time, which can be produced when using insulation panels as modular elements in the thermal insulation composite system. In addition, due to the prefabrication, there is the advantage that the modular elements are easier to handle in the production facility for the wall elements according to the invention than on a construction site, which means that modular elements in large formats can also be used. Furthermore, in comparison to erecting a composite wall made of formwork blocks and module elements on the construction site, the influence of the weather is of little importance, since the adhesive connections between the formwork blocks and the module elements can be produced in production halls regardless of the weather. This ensures consistent quality and high dimensional accuracy of the composite wall elements.

For a front connection of a further composite wall element in the area of the inner or outer wall element surface, it can be provided according to the invention that bores arranged one above the other in the vertical direction are made in the composite wall element on the inner or outer wall element surface, which extend from the inner or outer wall element surface to extend into the cavity of the wall panel made of shuttering blocks. The cavity of the further composite wall element, which is connected via its end face to the inner or outer wall element surface of the composite wall element, is connected to the cavity of the composite wall element via the bores provided in the inner or outer wall element surface.

It is also conceivable, instead of the module elements, to arrange the shuttering blocks in a first method step along the assembly plane, with the module elements being glued to the side walls of the shuttering blocks forming a plane, which face away from the assembly plane.

In addition to gluing, according to one embodiment of the method according to the invention, the module elements and the wall panel formed from shuttering blocks can be connected to one another via fastening means. The connection of the modular elements to the wall panel made of formwork blocks can be effected, for example, by concrete anchors which extend into the cavity of the wall panel. After gluing the Module elements and the formwork blocks, the concrete anchor is screwed from the outer wall element surface through the module element into the side wall of a formwork block. For this purpose, the concrete anchor can have a self-tapping external thread, which cuts a thread in the side wall of the shuttering block up into the cavity of the wall panel and thus fastens the module element to the wall panel. On the other hand, it is also conceivable that when bricking up the formwork blocks, a concrete anchor is inserted into the adhesive joint of the formwork blocks, with the concrete anchor having to be inserted through the module elements in the direction of the assembly level. After the module elements and formwork blocks have been glued together, a locking washer can be attached to the end of the concrete anchor, which extends through the module element. The lock washer clamps the module element against the wall plate and thus fixes it. For this purpose, the end of the concrete anchor can have an external thread and the locking washer can have a recess with an internal thread, so that the locking washer can be screwed onto the concrete anchor in order to clamp the module element.

The additional attachment of the module elements to the wall panel prevents the module elements from detaching from the wall panel as a result of insufficient load-bearing capacity of the adhesive connection for module elements with a thickness greater than 20 cm or as a result of an aging-related decrease in the adhesive strength of the adhesive. In particular when using bonded soft wood fiber insulating elements as modular elements, which have only a low tensile strength, the dowelling also has the advantage that the modular element is prevented from tearing open and thus the modular element is prevented from detaching from the wall panel. When using concrete anchors as fasteners, the composite wall element can be transported by gluing the module elements to the wall panel, with the concrete anchors creating a permanent connection between the module elements and the wall panel after the cavity of the wall panel has been filled with concrete. Furthermore, the additional attachment has the advantage that the module elements safely absorb the suction forces that can arise from a wind flow along the free surfaces of the module elements and consequently wind suction damage to a composite wall element used as the outer wall of the building is avoided.

The length and/or height of the modular elements can essentially correspond to the height and/or length of the wall panel made of shuttering blocks. According to a preferred embodiment of the invention, however, the modular elements have a greater height than the wall panel. For this purpose, only so many rows of formwork blocks are arranged along the contact surface of the module elements that the module elements extend in sections beyond the last row of formwork blocks and thus beyond the shear wall. This section of the module elements, which extends beyond the wall panel, can advantageously be used as ceiling edge formwork for a ceiling panel to be produced on site, which is arranged on the wall panel formed from formwork blocks. For this purpose, the section of the module elements serving as ceiling edge formwork preferably has an overhang of approx. 18 to 25 cm.

After the wall element has been cut, it is provided according to the invention that a plate-shaped stiffening element is arranged on at least one of the end faces of the wall element, which has recesses for the passage of concrete. The stiffening element consists of a waterproof glued wooden panel or a galvanized sheet metal rail, which is attached to the cut surfaces of the formwork blocks by gluing, nailing or screwing. When cutting an endless wall element that can be produced on the support device in lengths of, for example, 3 to 4 meters and then assembling and gluing the individual wall element pieces on the support device, the stiffening element arranged between the cut surfaces of the wall element pieces stiffens the combination of the individual wall element pieces, so that warping and longitudinal deflection of the combination of wall panel pieces is prevented when the cavities of the wall panel pieces are filled with concrete on site. The cavities of the assembled wall element pieces are connected to one another through the openings provided in the stiffening elements, so that after the cavities of the combination of composite wall elements are filled with concrete, a monolithic wall is formed.

According to a further embodiment of the method according to the invention, it can be provided that no module elements and formwork blocks are arranged along the assembly plane in the area of a window or door opening provided in the composite wall element. The size of the resulting opening in the wall element essentially corresponds to the installation dimensions of a window or door element, with a corresponding lintel formwork block being arranged in the lintel area of the window or door opening. Such a lintel formwork block is known from the prior art, which has a length which essentially corresponds to the width of the door or window opening corresponds. The recesses and cavities of the formwork blocks that border the window or door opening are closed with a reveal board with at least one smooth surface, preferably a cement-bonded wood fiber board or a waterproof glued multilayer wood board. The cavity of the composite wall element produced according to the invention that can be filled with concrete is thereby sealed in the area of the window or door opening. To fasten the reveal panels to the open sides of the formwork blocks, they are preferably glued and nailed to the formwork blocks, with the nailing being able to be carried out, for example, with the aid of a shooting device.

By closing the open sides of the shuttering blocks with a reveal panel with a smooth and even surface, the necessary sealing strips can be glued directly to the reveal panel when installing a window or door element. It is therefore not necessary to apply a plaster leveling layer to create an even reveal surface. Furthermore, the composite wall element is stiffened by the soffit panels in the same way as with the arrangement of the plate-shaped stiffening element mentioned above.

For an arrangement of the window or door element in the area of the modular elements, the reveal panel can have a width which essentially corresponds to the width of the formwork blocks and the modular element. In other words, this means that the reveal panel cantilevers over the width of the formwork blocks, so that the window or door panel can be placed at any position between the inner and outer wall panel surfaces. When using module elements made of a thermal insulation material, the window or door element can thus be arranged in the area of the insulation layer. This has the advantage, especially with insulation thicknesses of more than 20 cm, that the window or door element can be arranged close to the outer wall element surface, which is formed by the surfaces of the module elements assigned to the assembly level, so that on the one hand constructive cold bridges and on the other hand wind turbulence in the Area of window or door openings should be avoided.

To produce a composite wall, which consists of at least a first and second wall element piece, it is provided according to a further method step according to the invention that the wall element is cut into at least a first and second wall element piece after gluing the module elements and the shuttering blocks. After cutting the composite wall element, which can be produced in any length, and arranging plate-shaped stiffening elements on the end faces, to which webbing loops are attached as described below, the wall element pieces are glued together at their cut surfaces. In order to prevent bending transversely and perpendicularly to the plane of the wall when the composite wall is lifted from the support device, a connecting profile, in particular a connecting profile made of galvanized sheet metal, is arranged along the bottom or top row of formwork blocks, which connects the individual wall element pieces to one another. The connecting profile can, for example, be screwed and/or glued to the wall element pieces and preferably has a U-shaped cross section with a straight web and a flange arranged at right angles at each end of the web, with the flanges covering the bottom or top row of formwork blocks grasp around the top or bottom. The U-shaped connecting profile has round or oval openings for the concrete to flow through in the area of the straight web, whereby the cavity of the wall element pieces can be connected to a foundation or ceiling slab on the construction site when the connecting profile is arranged on the underside of the bottom row of formwork blocks.

In addition to a U-shaped cross section, it is of course also conceivable for the connecting profile to have an L or T-shaped cross section, which comprises at least two legs arranged at right angles to one another. The first leg is fastened to the side walls of the formwork blocks, with the second leg running along a top or bottom side of the formwork blocks.

To arrange a window or door opening in the composite wall element, it can be provided according to the invention that a lintel element is arranged between the cut surfaces of the first and second wall element piece and glued to a section of the wall element surfaces. The cut surfaces of the wall element pieces are closed at least in sections with a soffit panel, the closure preferably being effected by nailing and gluing the soffit panel to the cut surfaces of the shuttering blocks. In addition to closing the open cut surfaces for shuttering the cavity of the wall element pieces, the reveal panels also support the lintel element with their upper edges.

In order to prevent sagging of the composite wall element formed from wall element pieces and lintel element, along the top row of formwork blocks and the lintel element mentes a connection profile can be attached, which connects the wall element pieces with the lintel element. The connecting profile can be screwed and/or glued to the wall element pieces and the lintel element, for example. The connecting profile preferably consists of a galvanized metal sheet with a U-shaped cross section, but another cross-sectional shape is also conceivable, which comprises at least two legs arranged at right angles to one another. The first leg is fastened to the side walls of the formwork blocks and lintel elements, with the second leg running along an upper side of the formwork blocks and the lintel element and thus supporting them.

The lintel element is preferably a U-shaped lintel element with a cavity that can be filled with concrete and is known from the prior art, which consists of the same material as the formwork blocks or of waterproof, glued multi-layer panels and can have thermal insulation arranged on the outside. The thermal insulation can be glued to the lintel element in the form of an insulating element. To transfer wall, lintel or ceiling loads, the lintel element also includes reinforcement, which is surrounded by concrete after it has been filled. According to a further embodiment of the invention, the lintel element can consist of U-shaped formwork blocks glued together, the reinforcement arranged in the cavity of the lintel element extending over the length of the lintel element and being fastened to at least one of the side walls of the formwork blocks. Fastening the reinforcement to the formwork blocks of the lintel element increases the flexural strength of the U-shaped formwork blocks that are glued together, so that the lintel element does not sag when the cavity is filled with concrete. A lattice girder, for example, can be used for the reinforcement of the lintel element made of formwork blocks or waterproof glued multi-layer panels, which can be produced in large lengths and is cut to the right size for the lintel element. The lattice girder preferably has a triangular or quadrangular cross-sectional shape, with one of the sides of the lattice girder being fastened to the side walls or the bottom wall of the lintel element via spacers. When the lintel element is filled with concrete, the forces acting on the shuttering blocks or the waterproof, glued multi-layer panels are dissipated via the fasteners, spacers and lattice girders arranged on the side or bottom wall of the lintel element, which prevents the lintel element from sagging.

In order to form a window opening arranged within the plane of the wall, it can also be provided according to the invention that a parapet element is arranged between the cut surfaces of the wall element pieces. The parapet element is glued to the cut surfaces that are not closed by a reveal panel. In order to connect the parapet element to the wall element pieces, the parapet element is mechanically connected to the previously described connecting profile extending along the underside of the wall element pieces. Like the wall element pieces, the parapet element also consists of formwork blocks arranged next to and/or on top of one another, the respective cavities of which form a common cavity extending in the vertical and horizontal direction. The same formwork blocks are preferably used for the production of the parapet element as for the production of the shear wall. By gluing the end faces of the parapet element to the cut surfaces of the wall element pieces, the cavities of the wall element pieces and the parapet element are connected to one another.

Like the wall element, the parapet element is preferably produced by arranging and mutually gluing modular elements and formwork blocks along an assembly plane. In this case, the formwork blocks and the module element(s) of the parapet element can be arranged, for example, directly between the cut surfaces of the wall element pieces. On the other hand, it is also possible to prefabricate the parapet element as an endless wall on the support device and to cut it to the appropriate length after the formwork blocks and module elements have been glued. The length of the parapet element results from the distance between the cut surfaces of the wall element pieces, the distance depending on the installation dimensions of the window element.

By cutting the wall element into at least two wall element pieces and arranging a lintel element between their cut surfaces, a composite wall element can be produced in a simple and inexpensive manner, which can be transported prefabricated to a construction site and includes a window and/or door element. By attaching at least one connecting profile along the bottom and/or top row of formwork blocks of the wall element pieces and the lintel element or parapet element, the composite wall element formed in this way has a high flexural rigidity in the direction of the wall plane and also transversely thereto. This results in the possibility of already integrating the window and/or door element into the composite wall element at the mounting level of the support device without twisting and deformation occurring during the subsequent transport of the composite wall element, which would destroy the glass surfaces of the window and/or door element, which absorb only small compressive stresses. Due to the rectilinear course of the connecting profile arranged below the wall element pieces and the parapet element, this also serves to align the composite wall element on the building site.

Instead of a lintel or parapet element, it is possible according to a further embodiment of the invention that between the cut surfaces of at least the first and second wall element pieces, a line duct extending over their height is arranged for receiving building services installation lines, which has an inspection cover assigned to the inner wall element surface is lockable. The duct is glued and nailed to the cut surfaces and to a module element arranged on the assembly level and has a width that essentially corresponds to the width of the formwork blocks. The side walls of the duct preferably consist of U-shaped formwork blocks that are glued together or of multi-layer wood panels that are glued together in a waterproof manner and are connected to one another in a U-shape. The inspection cover closing the line duct can be provided with a vapor barrier and a soundproofing mat, which insulates flow noise from water or gas-carrying installation lines. On one of the inner walls of the line duct, holding elements for subsequent attachment of installation lines can also be provided. On the bottom or top of the wall element, the duct can be connected to a connecting profile arranged there, whereby the composite wall element, which consists of at least a first and a second wall element piece and a duct, has high stability.

In addition to increasing the wall rigidity, the at least one connecting profile can also serve as a plaster stop for an interior wall plaster layer to be applied to the inner wall element surface. For this purpose, the at least one connecting profile has a web which runs at least along the length of the at least first and second wall element piece and extends outwards from the inner wall element surface as a plaster stop. The web has a width that corresponds to the thickness of the plaster layer to be applied. In this way, when plastering the inner wall element surface, a uniformly thick layer of plaster can be applied that corresponds to the required minimum thickness. The web also represents an end edge of the plaster layer, which runs in a straight line and evenly along the upper and/or lower row of formwork blocks.

According to the invention, the formwork blocks arranged below a window opening can be closed on the upper side with a reveal panel. Like the other reveal panels, this reveal panel also has a smooth surface, making it easier to attach sealing strips and install a window element. In order to simplify filling of the formwork blocks arranged below the window opening, the reveal panel has openings through which concrete can be poured into the interconnected cavities of the formwork blocks. In this way, the concrete is introduced into the formwork blocks arranged below the window opening both from the top of the composite wall element and through the cavities of the wall element pieces adjacent to the window opening, which are connected to the cavities of the formwork blocks arranged below the window opening.

In order to transfer horizontal loads in a building erected from composite wall elements produced according to the invention, it can be provided according to the invention that a ring anchor beam is arranged on the top row of formwork blocks of a composite wall element. The ring anchor beam has two side plates arranged parallel to one another, in particular wood cement fiber or multi-layer plates, which are connected to one another via an upper and lower U-shaped galvanized metal rail. The side plates and the metal rails are preferably glued together and thereby enclose a reinforcement insert. The metal rails are provided with oval or round openings, through which the concrete flows on the building site, to fill the ring anchor beam and the hollow space of the wall plate arranged below the ring anchor beam. The use of a ring anchor beam arranged on the upper side of the composite wall element results in the advantage that in a building erected from composite wall elements produced according to the invention, the bending and tensile forces from walls or rafter roof constructions can be introduced into the surrounding wall panels made of composite wall elements, so that no shear-resistant ceiling panel is required is.

According to a further embodiment of the method according to the invention, the construction time of a building erected from composite wall elements produced according to the invention can be further shortened if an external plaster base is applied to the outer wall element surface formed by the module elements. here it has proven to be particularly advantageous to apply a mineral-bound adhesive and reinforcing mortar, which is reinforced by a reinforcing fabric, to the surface of the module elements. The finishing plaster can be applied both at the factory in the production halls and after the adjoining composite wall elements have been glued on the construction site.

According to a further embodiment of the method, an abrasion-resistant interior plaster, in particular a fiber reinforcement plaster base, can be applied to the inner wall element surface. The interior plaster layer is applied at least over a section of the inner wall element surface. Due to the possibility of prefabricating the wall element, the interior plaster is sprayed onto the surface of the wall element, for example. Especially in seasons with an increased probability of precipitation, additives can be added to the interior plaster, which reduce the sensitivity of the plaster to moisture. In this way, the composite wall element provided with an interior plaster can be transported to the construction site without the interior plaster being affected by mechanical or weather-related stresses.

As a result of the possibility of controlling the climatic conditions, such as humidity and air temperature, at the place of manufacture of the composite wall element, an interior or exterior plaster can be produced with a good bond to the material of the module elements or the formwork blocks, with drying stresses and associated cracks in the plaster being avoided are avoidable. In order to connect the respective plaster layers in the joint area of adjacent wall elements, a plaster layer with a thickness that is less than in the remaining area of the wall element surface can be applied to a strip-shaped edge area of the wall element surface. After two adjacent composite wall elements have been joined together, the layer of plaster of reduced thickness in the strip-shaped edge regions can be matched to the thickness of the layer of plaster on the remaining wall element surface. In order to avoid cracks in the plaster in the area of the butt joints of two composite wall elements connected to one another, it can also be provided that the adjoining strip-shaped edge areas of the composite wall elements, and thus the butt joint, are covered with a strip of reinforcing fabric before the application of a further layer of plaster.

According to a further embodiment of the method according to the invention, it is provided that at least one panel-shaped module element is also fastened to the inner wall element surface, which is, for example, a cladding element, in particular at least one glued plasterboard or gypsum fiber board. For gluing the at least one modular element, a layer of adhesive is applied to a surface of the modular element or to the side walls of the formwork blocks which form the inner wall element surface. This is preferably a PUR adhesive that closes or fills the pores and depressions in the side walls of the formwork blocks and thus reduces the air permeability of the composite wall element. The arrangement of module elements on both sides of the wall panel made of formwork blocks results in a composite wall element which has a high degree of rigidity before the cavity is filled with concrete and only warps slightly when it is filled with concrete. In order to prevent the panel-shaped module element from slipping along the inner wall element surface before the adhesive dries out, it can also be provided that the at least one module element is additionally nailed or clamped to the wall panel made of shuttering blocks after bonding. This results in the advantage that the composite wall element produced according to the invention can be further processed and transported immediately after the gluing of the module element or elements.

In order to further shorten the construction time required for erecting a building on the construction site, it can be provided according to a further method step that at least one installation line is fastened to the inner wall element surface facing away from the module elements. The installation line can be, for example, a heating pipe, an electrical supply line, a water pipe or a ventilation installation with an associated ventilation element, which is glued directly to the side walls of the formwork blocks that form the inner wall element surface. The at least one installation line can be bonded with the same adhesive that was previously used for bonding the formwork blocks. The installation line is preferably arranged under the interior plaster, so that the plaster is only applied after the installation line has been attached to the inner wall element surface. Due to the arrangement of the composite wall element on the support device, the inner wall element surface is easily accessible for fastening the installation line, the scaffolding required for the production of the wall panel also being usable for the assembly of the installation line.

As an inventive alternative to the direct bonding of the installation line, it can However, it can also be provided that one or more mounting rails with recesses are fastened, in particular glued, to the inner wall element surface, into which the at least one installation line is inserted, in particular glued or clamped.

Instead of a direct arrangement of at least one installation line on the inner wall element surface, according to a further embodiment of the method according to the invention, at least one installation wall element with at least one installation line premounted thereon can be arranged along the inner wall element surface and glued to it. The installation wall element extends at least over a partial area of the inner wall element surface. If the inner wall element surface does not have any projections or recesses, the installation wall element can also extend over the entire inner wall element surface, it being preferably prefabricated to measure. At least one installation line is pre-installed on the installation wall element, which is, for example, a water, heating, electrical or ventilation line. The installation wall element can consist of a panel-shaped component, in particular a wood fiber or gypsum fiber board. The at least one installation line is preferably arranged between the panel-shaped component and the inner wall element surface, which is formed from the side walls of the formwork blocks. As a result, the installation wall element has a smooth and even surface on the side facing away from the inner wall element surface, which serves as a visible wall surface. To fasten this embodiment of the installation wall element on the inner wall element surface, strip-shaped elements are provided on the installation wall element, which extend over the height and width of the installation wall element and have a height which corresponds to the height of the at least one installation line. The installation wall element can thus be glued to the wall panel made of shuttering blocks via the strip-shaped elements. Of course, it is also conceivable according to the invention to arrange the installation wall element as a modular element on the assembly level.

The pre-assembly of installation lines on the installation wall element results in the advantage that the production of a composite wall element according to the invention with pre-assembled installation lines is simplified. The position and course of the individual lines can be specified, for example, by markings or special holding means on the installation wall element. By pre-assembling the installation lines on the installation wall element, it is possible to prefabricate the installation wall element in a process step that is independent of the production of the composite wall element.

In order to permanently connect the installation wall element to the wall panel consisting of shuttering blocks, according to a further embodiment of the method, the installation wall element is connected to the wall panel via fastening means, in particular concrete anchors extending into the cavity of the composite wall element. The fasteners are either glued into the joints of the formwork blocks or screwed or hammered into the side walls of the formwork blocks.

According to a further advantageous embodiment, the installation wall element has an interior plaster on the side facing away from the wall panel. According to an alternative embodiment, however, it is also possible for a coating to be provided on the side of the installation wall element facing away from the wall panel instead of the interior plaster. When using a waterproof coating, the composite wall element according to the invention is therefore also suitable as a wall for sanitary rooms, with the coating replacing the application of tiles on the side facing away from the wall panel. In order to accommodate items of furniture, such as shelves, the installation wall element can thus be provided with openings which receive the items of furniture in the installation wall.

In order to also arrange the installation wall element in the area of a window or door opening provided in the wall, it can have a recess which essentially corresponds to the installation dimensions of a window or door element.

By arranging an installation wall element according to the invention on the wall element surface of a composite wall element, the time for producing such is shortened considerably, with the degree of prefabrication of individual components increasing and thus reducing the costs for the production of a prefabricated composite wall element.

According to one embodiment of the invention, the at least one installation line can also be routed through the cavity of the wall panel. Inside the cavity, the installation line is attached to an end wall and/or side wall of a formwork block. The course of at least one installation line through the cavity of the composite wall element eliminates the plastering of installation lines on the inner wall element surface are arranged. Furthermore, there is the advantage that after the cavity has been filled with concrete, the installation line is protected from mechanical damage both by the side walls of the formwork blocks and by the enveloping concrete layer, such as can occur, for example, with lines arranged outside of the cavity through holes in the composite wall element .

In this context, fastening the installation line in the corner area of a front and side wall of the formwork block has proven to be particularly advantageous, since the course of the installation line through the cavity of the wall panel is predetermined by the corner areas of the stacked rows of formwork blocks lying one above the other. Before plaster is applied, the course of the installation line through the cavity can also be traced from the outside based on the joint course of the formwork blocks.

When the at least one installation line is arranged in the cavity of the wall panel, according to the invention, one or more openings can be provided in at least one side wall of a formwork block of the wall panel, through which the at least one installation line is routed out of the cavity and thus out of the wall panel. After the wall panel has been formed from formwork blocks, the at least one installation line can be inserted for this purpose, for example from one of the open sides of the wall panel into its cavity. An opening can be cut or drilled in the side wall of a shuttering block in order to lead the installation line out of the cavity of the wall panel in the area of the inner wall element surface. When laying an electrical installation line, this results in the possibility of providing an electrical connection within the wall element surfaces.

According to an advantageous embodiment of the invention, the at least one installation line is surrounded by a protective casing, which protects the installation line from damage when the cavity is filled with concrete.

Furthermore, for fastening the installation line in the cavity of the wall panel, a fastening means can be provided which fastens the installation line to a side wall or end wall of a formwork block within the cavity. In addition to gluing, the installation line can also be mechanically connected to the formwork block with a clip or a spacer.

According to a further method step, in order to fasten the installation line in the cavity of the wall panel, provision can be made for an incision to be made in at least one side wall of a formwork block. The incision is preferably in the form of a slit, so that a section of a flexible and dimensionally stable fastening means can be introduced or pushed into the cavity from the inner wall element surface. The section that extends into the cavity forms a loop. When inserting the installation cable through one of the open sides of the wall panel, it is guided through the loop. By fixing the section of the fastening means located outside the cavity, for example by fastening it to the inner wall element surface, the installation line is fastened to the side wall of a formwork block in the cavity. The fastening means can be a wire or a cable tie, for example, which has a diameter or a width of 2 to 10 mm. The wire or the cable tie is shaped in such a way that a loop is formed which can be inserted through the incision into the cavity. Furthermore, the free ends of the wire or cable tie extend out of the cavity through the incision and can thus be secured to the inner panel surface. By pulling on the free ends of the wire or cable tie, the loop arranged in the cavity encloses the installation line and thus fastens it to the side wall of the formwork block in which the incision is made.

According to a further embodiment of the invention, the at least one installation line arranged in the cavity can be an empty pipe into which, for example, an electrical line can be inserted. In this case, the empty tube is arranged over the length or height of the composite wall element in its cavity. The empty tube is preferably a plastic tube that withstands the concrete pressure and does not deform when the cavity is filled with concrete. When arranging the formwork blocks, the empty tube can, for example, be attached to the side walls of a row of formwork blocks, in particular glued, before another row of formwork blocks is placed. The empty tube preferably runs in a horizontal direction. In order to connect the empty pipe of a composite wall element to the empty pipe of another composite wall element produced according to the invention, the empty pipe runs through the wall panel at the same height in each composite wall element, with the connection of the empty pipe in the joint area of two adjacent composite wall elements taking place via a connecting sleeve. To When erecting a building from composite wall elements according to the invention, an opening can be cut into the wall panel at the level of the empty pipe, through which the empty pipe can be reached and through which, for example, an electrical line can be inserted into the empty pipe. Due to the possibility of connecting the empty pipes of adjacent composite wall elements, an electrical line can thus be routed from one composite wall element to an adjacent composite wall element, whereby the electrical line can be routed out of the empty pipe again through the incision of an opening at the level of the empty pipe and thus out of the cavity of the composite wall element can be led. In this context, when a window is arranged in the composite wall element, it is of course also provided that an empty pipe is also arranged in the parapet element. In order to rule out mutual electromagnetic interference from electrical lines with different voltages, two empty pipes are provided according to the invention, which are arranged at a distance from one another and are therefore shielded from one another. The electrical lines of the electrical supply network, to which the mains voltage is applied, are routed through one empty tube, while the electrical lines for transmitting data signals, etc., which only carry a low voltage of a few volts, run through the other empty tube.

With a vertical arrangement of the empty pipe in the composite wall element, after the formwork blocks have been glued or the composite wall element has been completed, holes are made in the composite wall element, which extend from the inner or outer wall element surface into the cavity of the wall panel formed by the formwork blocks. Installation lines, such as electrical supply lines, can be inserted and removed from the empty pipe through these holes, with the holes also serving to accommodate sockets, junction boxes and the like that are connected to the installation line laid in the empty pipe.

The empty pipe is preferably associated with a hole arranged in the lower area of the composite wall element, so that after erecting a building from composite wall elements produced according to the invention, the installation lines can be laid under the screed layer.

According to a further embodiment of the invention, the at least one installation line can be a heating pipe which is arranged on the side of the wall panel assigned to the inner wall element surface. The heating pipe extends over the length and/or height of the composite wall element. This arrangement of the heating pipe means that the room is heated over the entire wall surface, which creates a pleasant room climate. On the other hand, however, there is also the possibility of using such a wall heater for cooling instead of heating, with a liquid or gaseous cooling medium being circulated through the at least one heating pipe for this purpose. The wall surface heating can also be designed as a capillary tube system.

To further improve the room climate in a room enclosed by composite wall elements manufactured according to the invention, it can also be provided that the at least one installation line is a ventilation duct, preferably a flat duct with a low overall height, which is fluidically connected to a ventilation element. In this case, the ventilation element is arranged in the area of the inner wall element surface, whereby it can be fastened to the side walls of the formwork blocks, arranged on an installation wall element or integrated into the side wall of a formwork block. The ventilation duct and the ventilation element are used for ventilation, whereby according to the invention a ventilation element for ventilation can be arranged in a lower area of the wall element and a ventilation element for ventilation can be arranged in an upper area of the wall element. The ventilation elements have openings for the exit of incoming air or entry of exhaust air.

A ventilation system produced according to the invention has the advantage that a building erected from composite wall elements produced according to the invention can be ventilated and ventilated in a controlled manner. This is particularly important in energy-saving houses, since due to the seals in the area of the windows and doors, an exchange of air masses with the outside air is only possible by opening the windows and doors with corresponding heat losses.

To produce a prefabricated composite wall element with an integrated plumbing line, according to a further idea of the invention, further formwork blocks can be arranged along the inner surface of the wall element. For this purpose, in the area in which the further formwork blocks are arranged, the inner wall element surface preferably has neither interior plaster nor structural elements fastened to the wall element surface. The other formwork blocks are arranged in rows one above the other net, so that a pre-wall pane is created which has a hollow space that is continuous at least in the vertical direction for receiving at least one sewage pipe. For this purpose, the further formwork blocks of the pre-wall slab each comprise a cavity which, like the formwork blocks of the wall slab, is delimited by side and end walls. To form a pre-wall panel, the other formwork blocks are glued together when they are placed on top of one another and also to the side walls of the formwork blocks of the wall panel, which form the inner wall element surface. In this way, the wall panel formed from the formwork blocks and the pre-wall panel formed from the other formwork blocks are connected to one another. In addition to the use of formwork blocks, the pre-wall panel can also consist of a front panel and panel strips made of multilayer glued wooden panels glued at right angles to it, which are connected to the inner wall element surface by gluing and screws. The panel strips serve as spacers to the inner wall element surface and preferably have a width of 10 to a maximum of 40 cm. On the outside facing away from the inner wall element surface, the pre-wall panel has a flat pre-wall element surface, which preferably runs plane-parallel to the inner wall element surface of the wall panel and can be provided with a plasterboard panel for accommodating tiles.

By arranging a pre-wall panel for accommodating at least one installation line on the inner wall element surface, it is possible to prefabricate a composite wall element that is easy to set up on site and can be used as a wall element for a sanitary room. In this case, recesses can be provided in the pre-wall element surface, which are edged laterally by reveal strips. In the bathroom area, these recesses in the pre-wall element can be designed as embedded shelves and accommodate bathroom utensils.

According to the invention, the pre-wall panel can extend in sections over the height of the composite wall element. For this purpose, the pre-wall panel preferably consists of fewer rows of formwork blocks or a front panel that is less high than the wall panel, with the open sides, in particular the open sides of the pre-wall panel, being closed with a flat end panel with a smooth surface.

At least one mounting element can be integrated into the front-wall pane for fastening sanitary facilities, which is, for example, a bolt that extends outwards from the front-wall pane. In order to dissipate the forces acting on the mounting element, the mounting element runs through the pre-wall panel and extends into the cavity of the wall panel. After the hollow space in the wall panel has been filled with concrete, a bond is formed between the mounting element and the concrete, so that the mounting element is clamped and anchored in the wall panel. In the case of a pre-wall panel made of formwork blocks, it is possible, in addition to being anchored in the wall panel, for the mounting element to be supported as it runs through the side wall of a formwork block of the wall panel and through the side walls of another formwork block of the pre-wall panel.

According to a further embodiment of the method for producing a composite wall element according to the invention, the inner wall element surface and the pre-wall element surface of the pre-wall panel, which only partially extends over the height and/or length of the composite wall element, form a common surface. In this case, an interior plaster, in particular a fiber reinforcement plaster base, can be applied to the common surface of the wall panel and pre-wall panel. Due to the possibility of prefabricating the wall element, the interior plaster can be sprayed onto the common surface in a simple manner. Especially in seasons with an increased probability of precipitation, additives can be added to the interior plaster, which reduce the sensitivity of the plaster to moisture. In this way, the composite wall element provided with an interior plaster can be transported to the construction site without the interior plaster being affected by mechanical or weather-related stresses.

Instead of applying a wet plaster, it is possible according to a further embodiment of the invention to apply a panel-shaped cladding element to the common surface. The cladding elements can be, for example, gypsum plasterboard or gypsum fiber boards, which are glued with a PUR adhesive to the common surface of the pre-wall pane and the inner wall element surface and additionally nailed. The cladding elements can thus be fastened in the same way as described above for the fastening of cladding elements to only the inner wall element surface.

For an exact corner connection of composite wall elements produced by the method according to the invention, it can be provided according to the invention that the composite wall element consisting of module elements and shuttering blocks with a first cut into a first Wall element piece of greater length and is cut with a second cut into a second wall element piece of shorter length. The mutually facing cut surfaces of the two wall element pieces have a cut angle of the same size, so that the wall element piece of shorter length only has to be turned around the cut edge facing the assembly edge before the cut surfaces of the first and second wall element pieces are butt-joined and glued together.

In order to rotate the second wall element piece relative to the first wall element piece, the supporting device has a rotating device whose axis of rotation preferably extends in a direction perpendicular to the underside of the first wall element piece and on which the second wall element piece of shorter length can be fixed. To create corner connections with different corner angles, the rotating device can be rotated around the axis of rotation at any angle between 0° and 180°.

With a composite wall element according to the invention with a corner connection, building corners can be produced on the construction site in a short time and with great accuracy, the further cut surfaces of this composite wall element having in particular a cutting angle of 90°.

For moving and transporting the composite wall element produced according to the invention, loops made of webbing, in particular roller shutter webbing, are fastened to a surface of the wall panel delimiting the cavity. It has proven to be particularly advantageous to arrange the webbing loops on the reveal panels or stiffening elements, for which purpose a milled groove is preferably made on the reveal panel or the stiffening element, in which the belt is glued and nailed to the reveal panel or the stiffening element.

To produce a composite wall element according to one of the steps according to the invention, the mounting plane of the support device has an angle of between 70° and 90°, preferably an angle of 80°, to the horizontal. This makes it possible to lean the module elements and the formwork blocks, or the cladding elements and the formwork blocks, when arranging them on the assembly level. For this purpose, the support device can also have a support plane on which the respective components stand. The support plane is arranged at a substantially right angle to the mounting plane.

The object mentioned at the outset is also achieved by a composite wall element produced by the method according to the invention, which is prefabricated and transportable. The composite wall element can have sanitary, heating, ventilation and electrical installations whose connections to the respective supply networks form a common connection point. The common connection point is preferably arranged in a lower area of the composite wall element.

The common connection point of the sanitary, heating, ventilation and electrical installations can have a coupling connection via which the installation lines of the composite wall element produced according to the invention can be connected to the ventilation device and the water, heating and electrical supply network on site.

• 1 ein an einer Montageebene entlang errichtetes erfindungsgemäßes Verbundwandelement in einer schematischen räumlichen Ansicht,
• 2 eine schematische räumliche Darstellung eines Schalungssteines,
• 3 eine Seitenansicht auf die innere Wandelementfläche eines erfindungsgemäß hergestellten Verbundwandelementes mit Installationsleitungen,
• 4 eine Darstellung eines Längsschnittes durch ein erfindungsgemäß hergestelltes Verbundwandelement mit einem Installationswandelement mit vormontierten Installationsleitungen,
• 5 eine Darstellung eines Längsschnittes durch ein erfindungsgemäß hergestelltes Verbundwandelement mit im Hohlraum der Wandscheibe angeordneten Installationsleitungen,
• 6 eine Querschnittsansicht durch ein erfindungsgemäß hergestelltes Verbundwandelement mit einer Vorwandscheibe,
• 7a eine Darstellung eines Verbundwandelementes mit einem integrierten Fenster- und Türelement, welches gemäß der Erfindung aus geschnittenen Wandelementen, Sturzelementen und einem Brüstungselement hergestellt wurde, sowie
• 7b einen Querschnitt durch ein Verbundwandelement mit Modulelementen im Bereich der Fensteröffnung, welches im Wesentlichen dem in 7a dargestellten Verbundwandelement entspricht.

In the drawings show

• 1 a composite wall element according to the invention erected along an assembly level in a schematic spatial view,
• 2 a schematic spatial representation of a formwork block,
• 3 a side view of the inner wall element surface of a composite wall element produced according to the invention with installation lines,
• 4 a representation of a longitudinal section through a composite wall element produced according to the invention with an installation wall element with pre-installed installation lines,
• 5 a representation of a longitudinal section through a composite wall element produced according to the invention with installation lines arranged in the cavity of the wall panel,
• 6 a cross-sectional view through a composite wall element produced according to the invention with a pre-wall panel,
• 7a a representation of a composite wall panel with an integrated window and door panel, which was made according to the invention from cut wall panels, lintel panels and a parapet panel, and
• 7b a cross section through a composite wall element with modular elements in the area of the window opening, which essentially corresponds to that in 7a shown composite wall element corresponds.

1 shows an assembly level 6, a support level 8 and a section level 32 of an in 1 Supporting device, not shown, with a sawing device 30 for producing a composite wall element 1. The composite wall element 1 according to the invention has module elements 2, formwork blocks 4 and an interior plaster 36.

To produce the composite wall element 1 , its individual components are arranged along the assembly plane 6 . In this case, the assembly plane 6 preferably has an angle of 80° to the horizontal, so that the components can be leaned against the assembly plane 6 when they are arranged. The support plane 8 is arranged at an essentially right angle to the assembly plane 6 and serves to support the components arranged along the assembly plane 6 . In order to produce a composite wall element 1 with any number of rows of formwork blocks 4 and with large-format modular elements 2, a working platform, not shown, is provided on the support device. To move the components along the assembly level 6 and the support level 8, these point in 1 feed rollers, not shown, whose axes of rotation extend over the height of the mounting plane 6 or over the width of the support plane 8 .

In a first method step, the module elements 2 are arranged along the assembly plane 6 in such a way that they form an essentially plane outer wall element surface 12 facing the assembly plane 6 and a plane contact surface 10 facing away from the assembly plane. The module elements can be insulation panels, for example. In a further process step, the formwork blocks 4 are arranged in rows along the flat contact surface 10 , the rows of formwork blocks 4 running one above the other having an offset of the butt joints 14 and forming a wall panel 28 . The contact surface 10 for the formwork blocks 4 is formed by the side surfaces of the module elements 2 which face away from the assembly plane 6 . During the assembly and juxtaposition of the in 2 The formwork blocks 4 shown are provided with an adhesive both on their front sides 16 and on tops 18 and undersides 20 . Simultaneously with the application of the adhesive to the adhesive surfaces of the formwork blocks 4, an adhesive is also applied to the formwork blocks 4 associated contact surface 10 of the module elements 2. The application of the adhesive to the contact surface 10 of the module elements 2 is preferably carried out over a large area before the formwork blocks 4 are placed next to one another in rows running one above the other along the contact surface 10 and glued together. When arranging one of the lower row of formwork blocks 4, an empty tube 40 is inserted into the cavity 24 of the resulting wall panel 28, which extends through the wall panel 28 in the horizontal direction. The empty pipe 40 can be glued to one of the front and/or side walls 16, 22 of the formwork blocks 4 in a row and can hold an electrical line. In order to avoid mutual electromagnetic interference between electrical lines of different voltages, according to an embodiment of the invention that is not shown, the lines of the electrical supply network can be separated from those lines which only carry a low voltage and, for example, are used to transmit data signals serve. For this purpose, another empty tube is inserted into the cavity 24 of the wall plate 28, the empty tubes being at a distance from one another and extending along different rows of formwork blocks 4. To produce an inner wall, it can also be provided that instead of insulating boards, panel-shaped cladding elements with plane-parallel surfaces, such as gypsum plasterboard or gypsum fiber boards, are arranged along the mounting plane 6 .

In the 1 and 2 The formwork blocks 4, 4a shown have a continuous cavity 24, 24a, which is delimited by the side walls 22, 22a and end walls 16, 16a. Recesses 26, 26a are provided on the end walls 16, 16a of the formwork blocks 4, 4a for connecting the cavities 24, 24a of formwork blocks 4, 4a arranged next to one another in the horizontal direction. After the formwork blocks 4 and the module elements 2 have been glued together, the wall panel 28 formed from the formwork blocks 4 thus has a hollow space 24 that is continuous in the vertical and horizontal direction. Thus, after the cavity 24 formed in this way has been filled with concrete, a concrete skeleton can form within the wall panel 28, which gives the composite wall element 1 according to the invention the required load-bearing capacity.

After the formwork blocks 4 and module elements 2 have been glued together, the composite wall element 1 can be cut to size in a direction orthogonal to the rows of formwork blocks 4 . The sawing device 30 provided for this purpose on the support device cuts the module elements 2 and the shuttering blocks 4 in the cutting plane 32. The sawing device 30, which can be a chain saw, for example, moves in the vertical direction from the top to the bottom row of shuttering blocks 4 The cutting angle of the sawing device 30 and thus also the cutting plane 32 can be set at any angle to the plane of the outer wall element surface 12 or assembly plane 6, so that in this way the composite wall element 1 according to the invention made of formwork blocks 4 and module elements 2 can be mitred.

As the schematic representation of the composite wall element according to the invention 1 in 1 can be seen, the formwork blocks 4 placed on top of and next to each other form a flat inner wall element surface 34 facing away from the assembly level 6. The inner wall element surface 34 runs plane-parallel to the assembly level 6, so that when rectangular formwork blocks 4 are used, the inner wall element surface 34 has a flat and has a smooth surface. After the formwork blocks 4 and the module elements 2 have been glued, an interior plaster 36 is applied to the inner wall element surface 34 . The inner wall element surface 34 can be plastered on the support device before or after the composite wall element 1 has been cut. Instead of applying wet plaster, panel-shaped cladding elements can also be glued to the inner wall element surface 34, which are additionally fastened to the wall panel with clips.

3 shows a top view of the inner wall element surface 34 of a composite wall element 1 produced according to an embodiment of the invention. On the inner wall element surface 34 there is a wall surface heater 38 with a heating pipe 48, a ventilation device 44 with exhaust and supply air elements 52, 56, an empty pipe 40 and water pipes 42 arranged. In order to attach the wall surface heating 38 , it is provided that the mounting rails 46 with recesses are glued onto the inner wall element surface 34 . in the in 3 For reasons of technical representation, the heating pipes 48 are clamped in the recesses of the mounting rails 46, which are not shown. The heating pipes 48 are flexible plastic pipes, in particular plastic pipes made of PE, which are laid running over the inner wall element surface 34 . For this purpose, the mounting rails 46 are glued to the inner wall element surface 34 at approximately the same height in a substantially vertical direction. Starting from a lower corner area of the wall element 1, the heating pipes 48 run in a meandering shape to an upper area of the wall element 1, from where they are led back to the lower corner area of the wall element 1. As an alternative to fastening heating pipes 48 by means of mounting rails, according to an embodiment that is not shown, plate-shaped elements, in particular gypsum plasterboard, with integrated heating pipes can be fastened to the inner wall element surface 34 .

In addition to a wall surface heater 38, starting from the lower corner area of the wall element 1, water pipes 42 are also arranged on the inner wall element surface, which either run across the entire inner wall element surface 34 or end in the area of the inner wall element surface 34 and serve as a connection for water-carrying devices. Likewise, empty tubes 40 can additionally be glued to the inner wall element surface 34, which extend from face to face over the length of the composite wall element 1 and serve to accommodate electrical lines. This in 3 The horizontally running empty tube 40 shown here has an electrical connection point 118 for connecting electrical devices, from which another empty tube 40 extends in the vertical direction, at one end of which an electrical switch 116 is arranged. Both the electrical connection point 118 and the electrical switch 116 are connected to the electrical lines laid in the empty tube 40 . After an in 3 In an embodiment of the composite wall element 1 that is not shown, the empty pipes 40 can also be arranged within the cavity 24 of the wall panel 28, i.e. behind the inner wall element surface 34, with an installation line being able to be inserted into the empty pipe 40 via an opening provided in a side wall 22 of a formwork block 4. For example, an electrical line running in the empty tube 40 can be electrically connected to a socket 118 or a switch 116 which is inserted into the opening in the side wall 22 of the formwork block 4 .

A ventilation device 44 can also be fastened to the inner wall element surface 34 for ventilation of a room enclosed by composite wall elements 1 produced according to the invention. The ventilation device 44 comprises an exhaust air line 50 which extends from the lower corner area of the composite wall element 1 to an upper area and is connected there to an exhaust air element 52 in terms of flow. For ventilation, an air supply element 56 is also provided on the inner wall element surface 34, which is connected in terms of flow to an air supply line 54, which runs from the air supply element 56 arranged in the lower area of the wall element 1 to the lower corner area of the composite wall element 1. The exhaust air element 52 and the air supply element 56 have openings facing away from the inner wall element surface 34, which are used for ventilation.

Both the ventilation ducts 50, 54, the heating pipes 48 and the empty pipe 40 and the water pipes 42 are common Assigned connection point, which is located in the lower corner of the composite wall element 1. For easy connection of the installation lines 40, 42, 48, 50, 54 to the various supply networks in a building made of composite wall elements 1, an in 3 not shown coupling provided with which the various installation lines 40, 42, 48, 50, 54 can be connected to the respective supply networks. After arranging and fastening the various installation lines 40, 42, 48, 50, 54 on the inner wall element surface 34, they are completely covered by an interior plaster layer 36, so that the installation lines are no longer visible after plastering.

Instead of directly attaching the installation lines to the inner wall element surface 34, it is also possible that the 3 lines shown are pre-assembled on an installation wall element. In this context shows 4 a schematic representation of a longitudinal section through a composite wall element 1 according to the invention, which was cut at an angle α to the outer wall element surface 12 . The composite wall element 1 consists of formwork blocks 4 arranged next to one another, which have a cavity 24 and are glued together at their end walls 16 . The end walls 16 of the two formwork blocks 4 include recesses, not shown for technical reasons, which connect the respective cavities 24 of the formwork blocks 4 to one another in the horizontal direction. The module elements 2 designed as a thermal insulation layer are connected to the formwork blocks 4 by an adhesive layer 60 . In order to prevent the module elements 2 from slipping when arranged along the in 1 To prevent assembly level 6 shown, a lateral compressive force is applied to the module elements 2 after the arrangement along the assembly plane 6, which presses the end faces 62 of the module elements 6 seamlessly against one another. After being glued to the side walls 22 of the formwork blocks 4, the modular elements 6 are relieved of the compressive force acting laterally.

In addition to gluing the module elements 2 to the formwork blocks 4 , concrete anchors 64 are provided, which are screwed through the module element 2 into the side wall 22 of the formwork block 4 . For this purpose, the concrete anchor 64 comprises an essentially cylindrical section with a self-tapping thread, which cuts into the side wall 22 of the formwork block 4 . The essentially cylindrical section of the concrete anchor 64 extends into the cavity 24 of the formwork block 4 that can be filled with concrete. Furthermore, the concrete anchor 64 includes a head which has a larger outside diameter than the essentially cylindrical part of the concrete anchor 64 and which applies a compressive force acting in the direction of the formwork block 4 to the module element 2 .

An installation wall element 70 is glued to the inner wall element surface 34 of the formwork blocks 4 and is additionally connected to the formwork blocks 4 by a concrete anchor 66 extending into the cavity 24 of the formwork blocks 4 . Like the concrete anchor 64 for connecting the modular elements 2 and the formwork blocks 4, the concrete anchor 66 also comprises a substantially cylindrical section with a self-tapping thread. On the installation wall element 70 water pipes 42, empty pipes 40 and supply or exhaust air lines 50, 54 can be provided.

The installation wall element 70 comprises a base body 72 which is connected via connecting elements 120 to the inner wall element surface 34 which is formed from the side walls 22 of the formwork blocks 4 . The installation lines 40, 42, 50, 54, which are arranged between the base body 72 of the installation wall element 70 and the inner wall element surface 34, can either be glued to the base body 72 or with in 4 be attached brackets not shown. The connecting elements 120 are connected, for example by nailing and gluing, to the base body 72 of the installation wall element 70 and are preferably glued to the inner wall element surface 34 together with the installation wall element 70 . The connecting elements 120 can consist of the same material as the formwork blocks, for which purpose residual cuts can preferably be used. As an alternative to this, it is also possible, according to an embodiment that is not shown in more detail, for the connecting elements to consist of multilayer glued wooden panel strips which are arranged perpendicularly to the base body 72 and the inner wall element surface 34 . The surface of the base body 72 facing away from the inner wall element surface 34 has a smooth and even surface which is arranged plane-parallel to the inner wall element surface 34 . The base body 72 preferably consists of a multilayer glued wooden board, but can also consist of a material such as plasterboard, gypsum fiber or the like. The surface of the base body 72 can be provided with a coating which, as a finished wall surface, no longer needs to be processed after the erection of a building from composite wall elements 1 produced according to the invention and makes the application of interior plaster or wall tiles unnecessary.

Another longitudinal section through a composite wall element 1 is shown in 5 shown schematically. The composite wall element 1 essentially corresponds to that in 4 composite wall element 1 shown and comprises formwork blocks 4 arranged next to one another, which are bonded both to one another and to a module element 2 made of a thermal insulation material. In addition to connecting the modular element 2 to the side walls 22 of the formwork blocks 4 via an adhesive 60, a concrete anchor 64 is also provided, which extends through the module element 2 and the side wall 22 of the formwork block 4 into the cavity 24 of the composite wall element 1 that can be filled with concrete . Furthermore, an interior plaster 36 is applied to the inner wall element surface 34 of the composite wall element and a plaster base 68 is applied to the side 12 of the modular element 2 facing away from the formwork blocks 4 .

This in 5 Composite wall element 1 shown differs from the composite wall element 4 in that it was cut at a cutting angle α of 90° to the outer wall element surface 12 and has installation lines 40, 42, 48, 50, 54 which are arranged inside the cavity 24 and run through the cavity 24 in the vertical direction. The installation lines are an exhaust or air supply line 50, 54, an empty pipe 40, a heating pipe 48 and a water pipe 42, which are attached to the side or end walls 22, 16 of the formwork blocks 4 in various ways within the cavity 24 . In order to protect the various installation lines 40, 42, 48, 50, 54 from damage and deformation as a result of the concrete pressure when the cavity 24 is being filled with concrete, they include a stabilizing protective casing.

The exhaust or air supply line 50, 54 has a rectangular line cross-section and rests with one of the flat side surfaces on the inside of the side wall 22 of the formwork block 4. For ventilation of a space enclosed by composite wall elements 1, an exhaust or air supply element 52, 56 is arranged on the inner wall element surface 34, which is fluidically connected to the exhaust or air supply line 50, 54 via a wall opening 90a. The wall opening 90a is preferably cut or drilled into the side wall 22 of the formwork block 4 before the exhaust or air supply line 50, 54 is arranged.

In order to fix the exhaust or air supply line 50, 54 in its position on the side wall 22, a spacer 88a, 88b is provided, which presses the exhaust or air supply line 50, 54 against the side wall 22 of the shuttering block 4. For this purpose, the spacer consists of a threaded rod 88b and a sleeve 88a with an internal thread, the threaded rod 88b being screwable into the sleeve 88a. After arranging the exhaust or air supply line 50, 54 within the cavity 24, the spacer 88a, 88b is inserted between the exhaust or air supply line 50, 54 and the opposite side wall 22 of the shuttering block 4 and unscrewed. In addition to an embodiment of the spacer as a two-part device, other embodiments of spacers can of course also be used.

In addition to using spacers 88a, 88b, the installation lines 40, 42, 48, 50, 54 can also be fastened within the cavity 24 in other ways. This in 5 The empty tube 40 shown is fastened within the cavity 24 via the wall opening 90b. For this purpose, the empty pipe 40 consists of tubular elements which have a tubular T-piece with a branch pipe 92 in the region of the wall opening 90b. The branch pipe 92 of the T-piece is guided through the wall opening 90b. In order to fix the branch pipe 92 in the wall opening 90b, the branch pipe 92 can have an external thread and a union nut 94 . In this way, the union nut 94 can be screwed against the inner wall element surface 34 after the branch pipe 92 has been passed through the wall opening 90b.

Furthermore, the installation lines can also be glued inside the cavity 24 to the front or side walls 16, 22 of the formwork blocks 4. This in 5 The heating pipe 48 shown is glued with the adhesive 60 in the corner area of the end wall and side wall 16, 22 of the shuttering block 4. The gluing of the heating pipe 48 can take place both during the arrangement of the formwork blocks 4 one above the other and next to one another along the in 1 shown setting surface 10 or be carried out only after the production of the composite wall element 1 .

In addition, when gluing the formwork blocks 4, brackets 86 can also be glued into the joints of formwork blocks 4 arranged next to or on top of one another, which extend into the cavity 24. The brackets 86 preferably consist of a wire which forms a tab within the cavity 24 . After gluing the formwork blocks 4, a water pipe 42, for example, can be passed through the tab of the bracket 86 and glued to the side walls 22 of the formwork blocks 4. As an alternative to gluing the bracket 86 into the joints, it is also possible, according to an embodiment that is not shown, to make a slot-shaped incision in the side wall 22 to introduce a formwork block 4. The bow-shaped fastening means 86 can be introduced into the cavity 24 from the inner wall element surface 34 through the incision, forming a loop in the cavity 24 . After the insertion of the bracket-shaped fastener 86, the installation line 42 can be passed through the loop formed in the cavity. The ends of the fastener that extend out of the cavity through the incision are thereby fixed on the inner wall element surface, so that the installation line 42 is held in the cavity 24 . In order to prevent concrete from escaping through the incision, it can be glued and thus closed after the installation line 42 has been attached.

6 shows a cross-sectional view through a composite wall element 1 that can be used as an outer wall, with a wall panel 28 and a pre-wall panel 74 for accommodating a sewage pipe 76. The wall panel 28 comprises module elements 2 made of a thermally insulating material and formwork blocks 4 arranged one on top of the other, the formwork blocks 4 having recesses 26 and with one another and are glued to the module elements 2.

The pre-wall panel 74 also consists of rows of formwork blocks 4a, which, however, have a smaller width than the formwork blocks 4 of the wall panel 28. To produce the pre-wall panel 74 , the formwork blocks 4a of smaller width are arranged in rows one above the other along the inner wall element surface 34 of the wall panel 28 and are glued both to one another and to the formwork blocks 4 of the wall panel 28 . The pre-wall panel 74 consists of fewer rows of formwork blocks 4a than the wall panel 28 and thus has a lower height than the composite wall element 1, so that the last row of formwork blocks 4a forms a shoulder 82. in a 6 Another embodiment that is not shown can be arranged on the section of the inner wall element surface 34 which is not covered by the pre-wall pane 74, various installation lines or an installation wall element. However, it is also conceivable that the formwork blocks 4a of the pre-wall panel 74 are arranged over the entire length of the composite wall element 1. The formwork blocks 4a have the 2 shown shape and correspond to the formwork blocks 4 of the wall panel 28 except for the smaller width.

After arranging the formwork blocks 4a in rows lying one above the other, the pre-wall panel 74 has a continuous cavity 24a in which a waste water pipe 76 is arranged. The waste water pipe 76 is led out of the cavity 24a through an opening in the side wall 22a of a formwork block 4a and can be connected to a sanitary facility, such as a toilet or a washbasin. In order to attach the sanitary facility to the front wall pane 74, the latter has one or more mounting elements 78 which extend out of the cavity 24a of the front wall pane 74. Starting from the cavity 24 of the wall panel 28, the in 6 The mounting element 78 shown is passed through the side wall 22 of a formwork block 4 of the wall panel 28 and through the side walls 22a of another formwork block 4a of the front wall panel 74, with the side walls 22, 22a of the formwork blocks 4, 4a serving as a supporting bearing for the mounting element 78.

The mounting element 78 is a bolt which has an external thread for connecting a sanitary facility at its end protruding from the front wall washer 74 . In contrast, the end of the mounting element 78 that extends into the cavity 24 of the wall panel 28 has a profiled surface structure that results in a good and durable bond with the concrete that is introduced into the cavity 24 . In addition to the design of the mounting element 78 as a concrete anchor, it can be provided according to an embodiment that is not shown that the mounting element comprises a concrete dowel arranged in the cavity 24 and a bolt which can be screwed into the concrete dowel after the cavity 24 has been filled with concrete.

In order to close the hollow space 24a formed by the formwork blocks 4a, an end plate 80 is arranged on the upper side of the pre-wall panel 74. The end plate 80 can be nailed and/or glued onto the last row of further formwork blocks 4a. After the cavity 24a has been closed, an interior plaster 36 is applied to the outer surface 84 of the pre-wall panel 74 and to the inner wall element surface 34 of the wall panel 28, which is not glued to the pre-wall panel 74, or a panel-shaped cladding element (not shown) is glued.

In 7a is a view of the inner wall element surface 34 of a prefabricated composite wall element 1, in which a window and door element 104, 106 are already integrated. To produce this composite wall element 1, an endless wall, which was produced from module elements 2 and formwork blocks 4 glued together as described above, is used with the 1 shown cutting device 30 in a first, second and third wall element pieces 1.1, 1.2, 1.3 cut. The wall element pieces 1.1, 1.2, 1.3 here have the cut surfaces 102.1, 102.2, 102.3 and 102.4 on the cut end faces. After the cut, the individual wall element pieces 1.1, 1.2, 1.3 are shifted along the assembly level 6 and the support plane 8 in such a way that a window element 104 and between the second cut surface 102.3 of the second wall element piece 1.2 and the opposite cut surface 102.4 of the third wall element piece 1.3 a door element. 106 can be arranged.

In the area of the window element 104, a parapet element 98 is provided below the window element 104 and a lintel element 96a above the window element 104, which are glued with their end faces to the cut surfaces 102.1 of the first wall element piece 1.1 and the first cut surface 102.2 of the second wall element piece 1.2. Like the wall element pieces 1.1, 1.2, 1.3, the parapet element 98 also consists of formwork blocks 4 and module elements 2 that are glued together, with the formwork blocks 4 forming a continuous cavity in the vertical and horizontal directions. The cavities of the first and second wall element pieces 1.1, 1.2 are connected to the cavity of the parapet element 98 by gluing the end faces of the parapet element 98 to the cut surfaces 102.1, 102.2 of the first and second wall element pieces 1.1, 1.2. In addition to gluing the end faces of the parapet element 98 to the cut surfaces 102.1, 102.2, the parapet element 98 can also be provided with an in 7a non-illustrated fabric can be connected to the wall element pieces 1.1, 1.2, which is applied to the inner wall element surface 34 associated surfaces of the wall element pieces 1.1, 1.2 and the parapet element 98.

During the manufacture of the wall element pieces 1.1, 1.2, 1.3 and the parapet element 98, an empty pipe 40 was arranged in one of the lower rows of formwork blocks, which extends horizontally through the cavity of the wall element pieces 1.1, 1.2, 1.3 and over their length. In order to connect the respective sections of the empty pipes 40 to the empty pipe 40 of the parapet element 98 after the wall element pieces 1.1, 1.2 have been cut, connecting sleeves 41 are provided which connect the ends of the empty pipes 40 to one another in the area of the cut surfaces 102.1, 102.2. This creates an empty pipe 40, which extends through the first and second wall element pieces 1.1, 1.2 and the parapet element 98 arranged between them and, for example, accommodates an electrical line. After an in 7a In an embodiment that is not shown, a further empty pipe can extend along a further row of formwork blocks 4 through the cavity 24 of the composite wall element 1 .

In order to close the open sides of the cut surfaces 102.1, 102.2, which are not glued to the parapet element 98 or the lintel element 96a, reveal panels 100a are glued to the open sides of the cut surfaces 102.1, 102.2 over the height of the opening for the window element 104 and nailed. The open side faces of the cut surfaces 102.1, 102.2 are closed in such a way that when concrete is poured into the cavity of the composite wall element 1, no concrete can escape via the cut surfaces 102.1, 102.2. In the same way, another reveal panel 100c is fastened to the upper side of the parapet element 98.

The soffit panels 100a arranged on the cut surfaces 102.1, 102.2 extend below the lintel element 96a, with the upper edges of the soffit panels 100a supporting the lintel element 96a. After the soffit panels 100a have been attached to the cut surfaces 102.1, 102.2, the lintel element 96a only needs to be inserted between the wall element pieces 1.1, 1.2 and glued to their cut surfaces 102.1, 102.2.

As with the installation of a window element 104, when a door element 106 is arranged between the wall element pieces 1.2, 1.3, the open cut surfaces 102.3, 102.4 of the wall element pieces 1.2, 1.3 are each closed with a reveal panel 100b, which support the lintel element 96b with their upper edges. In contrast to the reveal panels 100a arranged on the cut surfaces 102.1, 102.2, however, the reveal panels 100b arranged on the cut surfaces 102.3, 102.4 extend from the lower edge of the composite wall element 1 to the lower edge of the lintel element 96b. After the soffit panels 100b have been attached, the lintel element 96b for the door element 106 is also glued to the cut surfaces 102.3, 102.4 of the wall element pieces 1.2, 1.3.

The reveal panels 100a, 100b, 100c, which consist, for example, of a cement-bonded wood fiber panel or a waterproof glued multi-layer wood panel, have a smooth surface, so that the sealing strips that are required for the installation of a window element 104 or a door element 106 are applied to the surfaces of the reveal panels 100a, 100b, 100c can be glued without having to be applied a plaster leveling layer is required to create an even surface.

After closing the open cut surfaces 102.1, 102.2, 102.3, 102.4 with the reveal panels 100a, 100b, 100c, the window element 104 and the door element 106 at the in 1 The support device shown is inserted into the openings provided for this purpose in the composite wall element 1 and aligned with the aid of wooden spacers or an auxiliary installation frame to be arranged on the assembly level 6 before the frames of the window element 104 and the door element 106 are screwed to the reveal panels 100a, 100b, 100c. The auxiliary installation frame, which is not shown, preferably has a width that produces the required spacing of the window or door element 104 , 106 from the installation level 6 and thus from the outer wall element surface 12 .

In order to use the prefabricated composite wall element 1 with integrated window and door elements 104, 106, for example, from the 1 To be able to lift the support level 8 shown with a lifting device and then transport it to the construction site without damaging the built-in window and door element 104, 106 by deforming the entire composite wall element 1, there is a connecting profile 108a, 108b on the top of the top row of Formwork blocks 4 and lintel elements 96a, 96b and the underside of the bottom row of formwork blocks 4 are arranged. The upper connecting profile 108a runs from the first to the third wall element piece 1.1, 1.3 and thereby connects the wall element pieces 1.1., 1.2, 1.3 to the lintel elements 96a, 96b. Similarly, the lower connecting profile 108b extends along the lower edge of the composite wall element 1 and connects the wall element pieces 1.1, 1.2, 1.3 and the parapet element 98. The connecting profiles 108a, 108b are here on the wall element pieces 1.1, 1.2, 1.3 and the lintel elements 96a , 96b or the parapet element 98, which can be done by screwing and/or gluing. The connecting profiles 96a, 96b preferably have a U-shaped cross-section, although an L-shaped or T-shaped cross-section is also conceivable.

In 7b is a vertical section through the in 7a shown composite wall element 1 shown with module elements 2, wherein the sectional plane is in the region of the window element 104. The parapet element 98 consists of several formwork blocks 4 arranged one above the other, which, like the one in 2 the shuttering block shown has a cavity 24, a recess 26 and end and side walls 16, 22. The manufacture of the parapet element 98 can be carried out in the same way as the manufacture of an in 1 shown one-piece composite wall element 1, but the height of the module elements 2 and the number of rows of shuttering blocks 4 is matched to the height of the parapet below the window element 104. During production, in the cavity 24 of a lower row of formwork blocks 4, an empty pipe 40 running in the horizontal direction is glued to the side walls 22 of the formwork blocks. After the formwork blocks 4 and the module elements 2 have been glued together and an empty pipe 40 has been inserted, the 1 Endless wall element erected on the assembly level 6 shown is cut lengthwise with the sawing device 30, as required for the arrangement of the parapet element 98 between the in 7a shown cutting surfaces 102.1, 102.2 is required. The length of the parapet element 98 essentially corresponds to the length of the lintel element 96a. A reveal panel 100c is fastened to the upper side of the parapet element 98 and closes the interconnected cavities 24 of the formwork blocks 4 of the parapet element 98 . The reveal panel 100c has an opening 101 here. By connecting the cavities of the in 7a With the wall element pieces 1.1, 1.2 and the parapet element 98 shown, concrete can thus be introduced both from the adjacent wall element pieces 1.1, 1.2 and via the opening 101 into the cavity 24 of the wall element piece 98.

A window element 104 is arranged between the parapet element 98 and the lintel element 96a, which 7b is not shown further for technical reasons. The lintel element 96a consists of U-shaped formwork blocks which are closed in the direction of the window or door element 104, 106 and are glued together at their end faces. In order to give the lintel element 96a the necessary flexural rigidity after it has been filled with concrete, a continuous reinforcement 114 is arranged in the lintel element 96a and extends over its length. The reinforcement is a triangular lattice girder 114 which is bolted to the lower leg 122 of the U-shaped lintel 96a, thereby preventing deflection of the lintel 96a when filled with concrete. Like the parapet element 98, the lintel element 96a also has a module element 2 on its outside. The module element extends over the upper side of the lintel element 96a and forms a shoulder 112, which serves as ceiling edge formwork for a ceiling panel to be placed on the composite wall element 1. The lintel element 96b arranged above the door element 106 is constructed essentially like the lintel element 96a.

In an embodiment of the invention that is not shown, in addition to the 7b Reveal panel 100c shown is provided with further reveal panels, for example below the lintel element 96a, which extend across the width of the composite wall element 1 and form a frame running around the window or door opening for the installation of the window or door element 104, 106. In this way, the possibility arises that the 7b not shown window element in the insulating layer of the module elements 2 can be arranged.

According to the presentation in 7b an upper and a lower connecting profile 108a, 108b are each arranged along the inner wall element surface 34 in the longitudinal direction of the composite wall element 1. The upper connecting profile 108a is glued and screwed to the side wall of the lintel element 96a in the same way as it is to the side walls 22 of the 7a illustrated wall element pieces 1.1, 1.2, 1.3 and the lintel element 96b. The lower connecting profile 108b is arranged on the lower edge of the parapet element 98 and connected to its side wall 22 and the 7a shown side walls of the wall element pieces 1.1, 1.2, 1.3 glued and screwed. The connection profiles 108a, 108b show in the illustration 7b has a T-shaped cross-section, with the legs extending in the horizontal and vertical directions, respectively. The vertically extending leg of the lower connecting profile 108b has a height that essentially corresponds to the thickness of a screed layer. The legs of the connecting profiles 108a, 108b, which extend in the horizontal direction, run from the edge of the side walls 22 of the formwork blocks 4 or the lintel element 96a facing the cavity 24 to beyond the inner wall element surface and each form a protruding section that serves as a plaster stop web 1 10a , 110b is used. The plaster stop webs 110a, 110b extend over the length of the composite wall element 1 and specify the thickness of the plaster layer to be applied.

After an in 7a , 7b In an embodiment that is not shown, the vertical legs of the connecting profiles 108a, 108b can, of course, also be arranged on the surfaces of the side walls 22 of the formwork blocks 4 or the lintel elements 96a, 96b that are associated with the cavity 24. Such an internal arrangement of the vertical legs of the connecting profiles 108a, 108b is provided in particular for the attachment of panel-shaped cladding elements, such as gypsum plasterboard or gypsum fiber boards, on the inner wall element surface 34.

At the in the 1 , 4 , 5 , 6 and 7b The composite wall elements 1 shown can also be provided on the composite wall element 1 instead of the module elements 2, not shown, in particular plasterboard or gypsum fiber boards, whereby the casing elements do not require an additional connection by means of concrete anchors 64 and are flush with the side edges of the wall panel 28.

Reference List

1

composite wall panel

1.1

first wall element piece

1.2

second wall element piece

1.3

third wall element piece

2

module element

4, 4a

formwork block

6

mounting level

8th

support plane

10

contact surface

12

outer wall element surfaces

14

butt joint

16, 16a

bulkhead

18, 18a

top

20, 20a

bottom

22, 22a

Side wall

24, 24a

cavity

26, 26a

recess

28

wall disk

30

sawing device

32

cutting plane

34

inner wall panel surface

36

interior plaster

38

wall panel heating

40

conduit

41

connecting sleeve

42

water pipe

44

ventilation device

46

bracket rail

48

heating pipe

50

exhaust pipe

52

exhaust element

54

supply air line

56

supply air element

58

connection point

60

adhesive

62

face of the module elements

64, 66

concrete anchor

68

plaster base

70

installation wall element

72

body

74

pretext washer

76

drain pipe

78

mounting element

80

end plate

82

paragraph

84

pre-wall element surface

86

hanger

88a, 88b

spacers

90a, 90b

wall breakthrough

92

branch pipe

94

union nut

96a, 96b

fall element

98

parapet element

100a, 100b, 100c

reveal board

101

opening

102.1 - 102.4

cut surfaces

104

window element

106

door panel

108a

upper connection profile

108b

lower connection profile

110a, 110b

cleaning stop

112

modular element section

114

reinforcement

116

electrical switch

118

electrical connection point

120

fasteners

122

Side wall

Claims (30)

Method for producing a transportable, prefabricated composite wall element (1) from formwork blocks (4), in particular wood chip formwork blocks, which have cavities (24) and recesses (26) for continuous filling of the composite wall element (1) with concrete, in particular ready-mixed concrete, characterized by the following method steps : - arranging panel-shaped module elements (2), in particular insulation or wall cladding elements, along an assembly level (6) of a support device, the module elements (2) arranged above and/or next to each other having a flat contact surface (10) facing away from the assembly level (6) and a forming a flat outer wall element surface (12) facing the assembly level (6) of an endless wall, - arranging formwork blocks (4) in rows along the flat contact surface (10) of the module elements (2) in such a way that a wall panel (28) bricked in a bond forms an endless wall with at least one cavity (24) that can be continuously filled with concrete e The formwork blocks (4) are glued to each other and to the module elements (2) when they are placed on top of each other, so that the side walls (22) of the formwork blocks (4) facing away from the module elements (2) have a flat inner wall element surface (34) of the Forming an endless wall, - cutting the endless wall formed from formwork blocks (4) and modular elements (2) in a direction essentially orthogonal to the rows of formwork blocks (4) into a composite wall element (1) or at least two individual wall element pieces (1.1, 1.2, 1.3) of the composite wall element (1), wherein the angle of intersection (α) to the plane of the outer wall element surface (12) is variably adjustable, - Fastening a plate-shaped stiffening element made of a glued wooden board or a galvanized metal rail, which has recesses for the passage of concrete, on at least one end face the wall panel (28) of the composite wall element (1) or one of the wall element pieces (1.1, 1.2, 1.3) in which the Auss stiffening element is glued, nailed or screwed to the end faces of the formwork blocks (4), strap loops being arranged on the stiffening elements for moving and transporting the manufactured composite wall element (1), which are glued and nailed to the stiffening elements, - the individual cut wall element pieces (1.1, 1.2, 1.3) being joined and glued on the support device, either directly to one another to form a composite wall element (1) or indirectly to one another by means of a lintel element (96a, 96b), by means of a parapet element (98), by means of a duct and/or by means of a window or door element (104, 106). procedure after claim 1 , characterized in that the module elements (2) are connected to the wall panel (28) with fastening means, in particular with concrete anchors (64) extending into the cavity (24) of the wall panel (28). procedure after claim 1 or 2 , characterized in that the module elements (2) extend beyond the row of formwork blocks (4) arranged last and form a section (112) which serves as ceiling edge formwork for a ceiling panel to be arranged on the row of formwork blocks (4) arranged last. Method according to one of the preceding claims, characterized in that no module elements (2) and formwork blocks (4) are arranged in the area of a window or door opening, the open sides (24 , 26) of the formwork blocks (4) are closed with a reveal panel (100a, 100b, 100c) having a smooth surface. Procedure according to one of Claims 1 until 4 , characterized in that when the endless wall is cut into at least a first and second wall element piece (1.1, 1.2, 1.3), at least one connecting profile (108a, 108b) is fastened along a lower or upper row of shuttering blocks (4), the connecting profile (108a , 108b) connects the wall element pieces (1.1, 1.2, 1.3) to one another to form a composite wall element (1) and increases the flexural rigidity of the composite wall element (1) formed. procedure after claim 5 , characterized by - arranging the lintel element (96a, 96b) between the cut surfaces (102.1, 102.2, 102.3, 102.4) of two wall element pieces (1.1, 1.2, 1.3) and gluing the lintel element (96a, 96b) thereto to form a window or Door opening, wherein the lintel element (96a, 96b) has reinforcement (114) and can be filled with concrete, - at least partially closing the remaining open cut surfaces (102.1, 102.2, 102.3, 102.4) of the two wall element pieces (1.1, 1.2, 1.3) in Area of the window or door opening, each with a reveal panel (100a, 100b) having a smooth surface, which supports the lintel element (96a, 96b). procedure after claim 6 , characterized in that the lintel element (96a, 96b) has U-shaped formwork blocks glued to one another and the reinforcement (114) extending over the length of the lintel element (96a, 96b), the reinforcement (114) on at least one of the side walls of the formwork blocks is fastened and the flexural rigidity of the lintel element (96a, 96b) is increased when it is filled with concrete. procedure after claim 6 or 7 , characterized in that to form the window opening, the parapet element (98) comprising formwork blocks (4) and module elements (2) is arranged between the cut surfaces (102.1, 102.2, 102.3) of the wall element pieces (1.1, 1.2) and glued to them, with a reveal plate (100c) with openings (101) is fastened to the upper side (18) of the parapet element (98), through which the cavity (24) of the parapet element (98) can be filled with concrete. procedure after claim 5 , characterized in that between the cut surfaces (102.1, 102.2, 102.3) of the wall element pieces (1.1, 1.2) there is arranged a rectangular cable duct extending over their height for accommodating installation cables and is connected to the cut surfaces of the wall element pieces (1.1, 1.2), wherein the line duct can be closed via an inspection cover facing the inner wall element surface (34). Procedure according to one of Claims 5 until 9 , characterized in that the at least one connecting profile (108a, 108b) has a web (110a, 110b) running in the longitudinal direction of the composite wall element (1) and serving as a plaster stop for an interior wall plaster to be applied to the inner wall element surface (34). Method according to one of the preceding claims, characterized in that a ring beam is arranged on the top row of formwork blocks (4), which has two side plates arranged parallel to one another, which are connected to one another via a lower and an upper U-shaped metal rail having recesses, the side plates and the metal rails enclosing a reinforcement insert. Method according to one of the preceding claims, characterized in that on the during assembly of the assembly level (6). arranged on the outer wall element surface (12) of the composite wall element (1), an external plaster base, in particular an external plaster base (68) with a mineral-bound adhesive and reinforcing mortar and a reinforcing fabric, is applied. Method according to one of the preceding claims, characterized in that at least one module element (2) is attached to at least one section of the inner wall element surface (34) of the endless wall. procedure after Claim 13 , characterized in that at least one installation line (40, 42, 48, 50, 54) is attached to the inner wall element surface (34) of the endless wall. Procedure according to one of Claims 1 until 13 , characterized in that at least one installation wall element (70) with at least one preassembled installation line (40, 42, 48, 50, 54) arranged thereon is attached to at least one section of the inner wall element surface (34) of the endless wall. procedure after claim 15 , characterized in that the installation wall element (70) is connected to the wall panel (28) of the endless wall with fastening means (66), in particular with concrete anchors extending into the cavity (24) of the wall panel (28) of the endless wall. Method according to one of the preceding claims, characterized in that at least one installation line (40, 42, 48, 50, 54) is installed on a front and/or side wall (16, 22 ) of a shuttering block (4) is attached. procedure after Claim 17 , characterized in that at least one opening (90a, 90b) is provided in at least one side wall (22) of a shuttering block (4) of the wall panel (28) of the endless wall, through which the installation line (40, 42, 48, 50, 54) can be guided out of the cavity (24). Procedure according to one of claims 17 or 18 , characterized in that at least one incision is made in at least one side wall (22) of a shuttering block (4), through which a flexible fastening means (86) can be inserted from the inner wall element surface (34) of the endless wall into the cavity (24) of the wall panel ( 28) is introduced, with the flexible fastening means (86) forming a loop in the cavity (24) of the wall panel (28), through which the at least one installation line (40, 42, 48, 50, 54) is guided and on the at least one side wall (22) of the shuttering block (4) is attached. Procedure according to one of claims 17 until 19 , characterized in that the at least one installation line is an empty pipe (40) which is arranged to run in the longitudinal direction of the wall panel (28) in its cavity (24) and which is connected to the end faces of the composite wall element (1) via a connecting sleeve (41) is renewable. Method according to one of the preceding claims, characterized in that on at least one section of the inner wall element surface (34) of the endless wall a pre-wall panel (74) is fastened, which has a continuous cavity (24a) in the vertical direction for accommodating at least one installation line (76). , wherein the front wall element surface (84) facing away from the wall panel (28) has a substantially flat surface. procedure after Claim 21 , characterized in that the pre-wall pane (74) has recesses bordered by plate strips. Procedure according to one of Claims 21 or 22 , characterized in that at least one mounting element (78) is integrated in the front panel (74) for fastening sanitary facilities, which assembly element (78) extends through the front panel (74) into the cavity (24) of the wall panel (28) of the endless wall. Procedure according to one of Claims 21 until 23 , characterized in that the inner wall element surface (34) of the wall panel (28) of the endless wall and the pre-wall element surface (84) form a common surface to which an interior plaster (36) is applied. Procedure according to one of Claims 21 until 23 , characterized in that panel-shaped paneling elements, in particular plasterboard or plasterboard, are fastened to the pre-wall element surface (84). Method according to one of the preceding claims, characterized by - cutting the composite wall element continuously formed on the support device into a first wall element piece of greater length and a second wall element piece of shorter length, the respective cutting angles (a) to the plane of the outer wall element surfaces (12) of the first and of the second wall element piece have the same size, - rotating the second wall element piece by the the cut edge facing the assembly plane, and - gluing the cut surfaces of the first and the second further wall element piece. Method according to one of the preceding claims, characterized in that the mounting plane (6) of the support device has an angle of between 70° and 90°, in particular an angle of 80°, to the horizontal. Composite wall element (1) with webbing loops produced by a method according to any one of the preceding claims. composite wall element claim 28 , characterized in that the connections for the sanitary, heating, ventilation and electrical installations (40, 42, 48, 50, 54) are arranged in a lower region of the composite wall element (1) and form a common connection point (58). composite wall element claim 29 , characterized in that the connection point (58) has a coupling connection via which the water, heating, ventilation and electrical installations (40, 42, 48, 50, 54) with the water, heating, electrical network connection and the connection of the ventilation system on the construction site.

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