EP2198095B1 - Method of producing a part of a building using a formwork element, and part of a building produced thereby - Google Patents

Description

Building components made of concrete are usually made in cast-in-situ construction, in which at the site a formwork is placed, which limits a shape of the building part defining cavity on several sides. The cavity in which reinforcements can be placed is filled with fresh concrete and after curing of the concrete, the formwork is removed.

Building parts, which are increasingly acted upon from the outside with water, especially with so-called oppressively pending water such as basements are permanently sealed with special measures. Common but costly and unsatisfactory is the spreading of bitumen on the outer surface of the deconstructed building part and / or disguising the building part with a waterproof film, wherein in the film cladding but only local leakage of the film envelope to a full background of the film with water and Uncontrolled spread of water may result.

From the EP 0 796 951 B1 For example, a sealing material is known which contains bitumen as an essential constituent and forms a creep-water-tight interface with hardening fresh concrete. The sealing material may for example be applied to a flexible film.

In the DE 10 2004 007 709 A1 a method for producing a concrete floor slab is described in which an edge formwork of the bottom plate is formed by one or more edge formwork slabs, on whose the formwork space of the bottom plate facing surface, a sealing material of the type mentioned is applied. The plate material of the edge formwork panels can by a heat-insulating material, for. B. hard foam be formed. The edge formwork panels are connected to fastening elements passing through the layer of sealing material and are held by these on a reinforcement arrangement. Another foam sheet may have on the upper edge of said sealing material which may be continued to its top. The further foam plate forms in the formwork space for the bottom plate a step below precast wall elements, which are set up after production of the bottom plate on this and can be glued to the sealing material on the top of the other foam boards.

In the DE 10 2004 020 530 A1 is described using such edge formwork elements a method for producing a building part, in which rest on the upper edges of the edge formwork panels further formwork panels with a substantially horizontal plate plane, which cover the formwork space for the bottom plate to below the intended position for wall elements and at their bottom plate shuttering space coated with said sealing material. Precast concrete wall elements are after production of the bottom plate on the top of the other formwork panels, the pressure-resistant, z. B. made of fiber cement are executed, put on. At the top, the further formwork panels have a structure which forms a kind of tongue and groove connection with a sealed channel with a counter-structure on the undersides of the wall elements. The channel is filled with a liquid, solidifying in the channel sealant. The formwork space of the bottom plate can be closed down by a geomembrane.

Building parts with a concrete floor slab and precast concrete wall elements are also made of DE 102 56 811 A1 , of the DE 10 2006 043 815 A1 and the DE 10 2004 040 201 A1 known, wherein the precast concrete wall elements sealing material of the type mentioned along a wall outer surface or within a multi-layer wall structure. Another relevant prior art are the DE 10256811 and the EP 0501838 ,

The present invention has for its object to provide methods for sealing a building part in a thus manufactured structural part as well as for such methods advantageous formwork elements.

The solution according to the invention is described in the independent claims. The dependent claims contain advantageous refinements and developments of the invention.

According to the method of the invention, a sealed building part is made in Ortbetonweise by a formwork is built on a concrete floor slab that forms a formwork space for a concrete wall assembly, said formwork space is limited to the outside of the building part through a plate assembly, which at the hardened concrete wall assembly remains permanently. The plate assembly includes at least one support plate, on whose the formwork space zuweisender surface a sealing web is arranged, which is on the carrier plate facing away, ie the formwork space side facing at least in a lower region, preferably over the entire surface coated with a sealing material, which with creeping fresh concrete a Kriechwasserdichte Forms interface. Such a sealing material is z. B. from the aforementioned EP 0 796 951 B1 known, fresh concrete introduced into the formwork space for the wall assembly comes into contact with the sealing material on the sealing sheet and forms a Kriechwasserdichte interface during curing with the sealing material. The support plate is firmly on the geomembrane and the interface between the concrete of the wall assembly and the sealing material with the so in place-concrete construction connected concrete wall and forms the outer surface of the wall assembly. Preferably, a plurality of support plates are provided, which are arranged side by side and up to a height required for sealing against the outside water level within the formwork and remain on the concrete wall assembly.

Due to the interface formed between the sealing material and the hardening fresh concrete is advantageously, in particular in addition to the conventional joint tape assembly at the joint between the wall bottom and bottom plate, a large-scale sealing of the concrete wall assembly given, which even in case of minor damage to the carrier plates spreading water prevented on the border to the concrete wall.

The support plates may consist of concrete as a carrier material in the first advantageous embodiment. The geomembrane is advantageously connected via a further Kriechwasserdichte interface between the support plate and sealing material on the side facing the support plate fixed to the support plate, for which the concrete support plate is produced on the sealing material of the geomembrane curing.

In another advantageous embodiment, the carrier plates may consist of a plastic, in particular a hard foam, with which the sealing web can be glued or welded. The remaining on the outside of the concrete wall assembly plastic carrier plates can advantageously serve as a thermal barrier coating.

The support plates can advantageously for the production of concrete wall assembly by conventional formwork panels or other formwork elements be supported outside to withstand the pressure of the introduced into the formwork space concrete.

In a particularly advantageous manner, the present at least in a lower region of the support plate layer of sealing material with a connected to the concrete of the bottom plate and beyond the surface of the bottom plate out continued geomembrane, which is advantageously also coated with the sealing material, be connected and a substantially form continuous layer of the sealing material. The geomembranes may overlap and / or be connected by means of the band edges of overlapping strips. A geomembrane on the side of the bottom plate may be given by a partially embedded in the concrete of the bottom plate, preferably flexible joint tape. In a preferred embodiment, such a geomembrane, such. B. in the aforementioned DE 10 2004 007 709 A1 or DE 10 2004 020 530 A1 disposed on the outer surface of the concrete floor slab and connected thereto via a creep water-tight interface. The geomembrane along the bottom plate can be continued to the bottom. A laterally present on the bottom plate geomembrane is also referred to as bottom plate side geomembrane, a present below the bottom plate geomembrane referred to as the lower geomembrane.

In an advantageous development of the sealing sheet of the support plate on the outside of the wall assembly, a vertically extending sealing strip may be arranged wegführend outwardly, which protrudes beyond the side facing away from the sealing sheet of the support plate. The protruding part of the sealing strip can advantageously protrude into a formwork space of a connection wall and such a connection wall can be concreted on this part of the sealing strip, wherein the protruding into the formwork space part of the sealing strip advantageously coated with the sealing material. The sealing strip is advantageously connected in its lower region with a leading to the connection wall connection joint tape.

An arranged on the formwork space for the wall assembly side facing a support plate layer of the sealing material can be combined in an advantageous manner with a conventional per se support of wall formwork by means inserted in the formwork space between opposite formwork panels spacer tubes and separated from the concrete by these and the Shuttering plates guided by clamping elements, wherein the shuttering panels are clamped by means of the clamping elements with high force against each other and are held by the spacer tubes at a defined distance corresponding to the intended concrete wall thickness. In the carrier plate and the geomembrane an opening is created for the implementation of the clamping elements. A support member having an annular surface surrounding an opening is aligned on the side facing away from the carrier plate and the sealing material side of the carrier web aligned with the opening in the carrier plate and pressed by a spacer tube during clamping of the shuttering panels with the annular surface firmly against the layer of sealing material and is thereby firmly and tightly glued over the sealing material with the geomembrane.

Particularly advantageous is a method for producing a seal of a concrete pavement as a building part, in which a formwork prepared for such a ceiling and the formwork space is filled with fresh concrete, typically in the formwork space a reinforcement of structural steel is arranged. In conventional construction, top, no longer covered ceiling panels, z. B. as flat roofs, provided after curing of the concrete with overlapping bituminous sheets, which are bonded by softening the bitumen by means of a flame on the concrete surface. The bonding, which is formed by a plurality of punctual anchorages of the bitumen on the concrete surface is mechanically stable and the overlapping web form a waterproof skin over the concrete surface. At a punctiform damage to the bituminous membranes but penetrating water at the point of damage can spread below the bituminous sheets between this and the concrete surface and penetrate in particular breakthroughs through the concrete slab, at connection areas, etc. in underlying building areas, where due to the area distribution between Concrete surface and bitumen membranes localization of the damage site in the bitumen membranes is considerably more difficult.

According to the invention, a sealing of an upper surface of a concrete slab can take place in such a way that after filling the flowable fresh concrete in the prepared, upwardly open mold on the still moist fresh concrete prior to solidification support plates which on at least one side of the plate with a sealing material of the type described at least are partially provided, are placed, wherein the side provided with the sealing material facing the fresh concrete and rests on this. Since the fresh concrete is still flowable, results in a flat contact of the sealing material on the surface of the fresh concrete filling. The support plates remain on the surface of the fresh concrete and when curing the fresh concrete to the concrete ceiling slab, the concrete with the sealing material forms a Kriechwasserdichte interface and at the same time a solid mechanical connection of the support plates on top of the concrete ceiling slab.

Advantageously, the surface of the top of the ceiling plate is covered by a plurality of side by side arranged carrier plates. Joints between adjoining support plates are advantageously provided by the joints bridging strips on the concrete facing Board sides of the carrier plates bridged, these strips are advantageously also coated with the sealing material. The strips can be connected as separate strips with two plates adjoining one another on a joint, preferably adhesively bonded or, as a continuation of a carrier film which is connected to the carrier plates and carries the sealing material, form laterally over the plate surface protruding strips extending along the plate edges.

Advantageously, the support plates are so dimensionally stable in themselves that the support plates, in particular in the form of foamed plastic, are passable after laying on the surface of the still flowable fresh concrete, said by the high specific gravity and the viscosity of the concrete and typical plate sizes of about 1m ² the support plates are not appreciably pressed into the concrete when entering by a person, so that laid carrier plates in turn can serve as a working surface for laying more plates.

The creep-water-tight interface between the sealing material and the concrete surface of the cured ceiling slab prevents further spreading of water beyond the point of damage even if a support plate is damaged and, if necessary, a foil carrying the sealing material. Even local imperfections where the sealing material has not been in sufficient contact with the fresh concrete and therefore does not have a creep-water-tight interface, allow the propagation of water only over the extent of such a local defect, which is typically only a few square centimeters. Further spreading is prevented by the creep-water-tight interface surrounding and delimiting such a defect.

While in the methods described above, a sealed against the ingress of water building part is recreated, there is often also a need to subsequently seal existing building parts against the ingress of water in a surrounded by an outer wall assembly interior. This may be necessary in particular if only after creation of a building part, z. B. a building basement of the water level rises in the area. Such a situation may exist in mining areas, for example, when, after the end of mining, the previously artificially lowered groundwater level rises and reaches the level of building basements.

A first method for subsequent sealing of a structural part takes such a seal from the outside before. The outer wall, which in this case is generally understood to mean the outer surface of the building part, including the side surface of a foundation or a floor slab, is exposed to a lower area of surrounding material, in particular soil. In the lower part of the outer wall, the surface thereof is prepared for waterproof connection with a first concrete material as the lower seal. The preparation may in particular be a removal of an outer layer of the outer wall, a roughening of the surface and / or a treatment of the surface with a primer, for. B. a so-called primer include. It is known per se to achieve a largely watertight connection to a newly contacted with the surface and hardened fresh concrete on such a prepared surface of already hardened concrete, wherein the first concrete material of this fresh concrete u. U. has a special composition. The preparation of the old concrete surface is relatively expensive, but by the restriction to the lower portion of the outer wall but within reasonable limits.

A plate assembly having at least one support plate is disposed on the outside of the outer wall with an upright plate surface. The support plate advantageously has, at least in the region of its lower edge, a sealing web which is coated with a sealing material which forms a creep-water-tight interface with hardening fresh concrete. Fresh concrete is introduced into the lower part of the outer wall and brought into contact with the prepared surface in the lower part of the outer wall. The amount of fresh concrete is such that the fresh concrete also contacts the sealing material in the region of the lower edge of the carrier plate and on hardening both on the prepared surface of the outer wall and on the sealing material in the region of the lower edge of the carrier plate creep-water-tight interfaces and between the support plate and outer wall forms continuous concrete body.

The carrier plate can already be positioned in front of the outer wall prior to the introduction of the fresh concrete of the first concrete material or can be sunk into it after introduction of the first concrete material with the lower edge. The plate assembly may advantageously include a plurality of carrier plates with interconnected sealing webs.

The support plate is advantageously arranged spaced from the outer wall and in the space formed between the outer wall and the support plate advantageously second concrete material is introduced and cured. The second concrete material can be different from the first concrete material and in particular be formed at a small distance of the support plate from the outer wall by a so-called fluid concrete. In an advantageous embodiment, the support plate may be provided on its outer wall facing surface predominantly or completely with the sealing web with the sealing material and in particular, the fresh concrete from the in the space introduced second concrete material when curing on the sealing material with this form a creep-water-tight interface.

The support plate can advantageously be made of concrete, in another embodiment also made of plastic and the geomembrane can be connected in one of the ways already described with the support plate. The geomembrane may also be formed solely by a layer of sealing material present on the surface of the carrier plate.

The geomembrane arrangements may in particular at least partially contain layers with said sealing material, which forms a creep-water-tight interface with hardening fresh concrete.

The bottom sealing sheet arrangement may advantageously be formed by a plurality of interconnected sealing sheets, which are connected in a preferred embodiment in each case with a bottom support plate. The plurality of base support plates may be located on the side facing away from the interior or preferably the interior facing side of the bottom sealing sheet arrangement. In the latter case, the support plates are advantageously arranged laterally spaced from each other and the geomembranes are to the support plates and between them with the sealing material coated. About the interior assigning floor support plates, the arrangement advantageously during construction particularly advantageous walkable.

The wall sealing sheet arrangement may likewise advantageously comprise a plurality of sealing sheets, which may be connected to each other and to the ground sealing sheet arrangement to form the watertight tray, in particular welded or glued. The geomembranes may be secured in an advantageous embodiment on wall support plates. The wall support plates can advantageously extend down to the bottom inner plate and thereby be stabilized by this in position. The wall support plates or the wall sealing web arrangement can also be attached to the inner wall of the building part. The wall support plates may be arranged on the side facing the interior or on the side facing away from the interior of the wall sealing web arrangement. By the configuration of a formwork element as a dimensionally stable support plate with a on at least one plate surface facing away from the support plate geomembrane, which prevents the spread of water, in particular a hardening concrete a creeping water-tight interface surface, in particular a layer of a sealing material of the type mentioned, results in a particularly advantageous in Ortbetonweise to be handled in sufficiently dimensionally stable element. In particular, the carrier can consist of a plastic, wherein a rigid plastic foam favors the handling by low weight and at the same time can perform other functions such as a mechanical protection of a film and / or Kriechwasserdichten interface or heat insulation.

Said surface may be given in the first embodiment by a provided with projections and / or depressions and thus non-planar surface, preferably made of plastic film whose Kriechwasserdichtigkeit particular from a large creepage distance on the projections and depressions at the same time high resistance to the spread of water along the interface. The creep water tightness in this case may be that of spreading water along the interface in a small radius of e.g. a few centimeters around an entry point possible, but at the same time limited to such a small radius of spread.

Preferably, said surface is provided by a layer of said sealing material known in the art which forms a creep-water-tight interface with hardening concrete and contains bitumen as an essential ingredient.

The layer of sealing material, which forms a creep-water-tight interface with hardening fresh concrete, can be applied directly to the substrate or in a preferred embodiment on a film. The film may preferably be continued for connection to adjacent formwork elements and / or layers of sealant material over one or more edges of the plate-shaped support. The carriers can be advantageously adapted to the site from given plate sizes by dividing the plates and / or by joining several plate-shaped carriers to the respective required areas. The layer of sealing material is provided at least on a part of the plate surface of the formwork element.

Fig. 1

Ausführungen von Schalungselementen,

Fig. 2

eine erste Ausführung einer Betonwand in Ortbetonbauweise,

Fig. 3

eine Variante zu Fig. 2 mit ausgegossenem Spalt,

Fig. 4

eine Ausführung mit Fugenbandanbindung,

Fig. 5

Schalungselemente bei der Herstellung einer Bodenplatte,

Fig. 6

einen Wandanschluss zu Fig. 5,

Fig. 7

ein Schalungselement zu Fig. 5 in gestrecktem Zustand,

Fig. 8

das Schalungselement nach Fig. 7 in abgewinkeltem Zustand,

Fig. 9

ein Randschalungselement für eine Betonplatte,

Fig. 10

eine Anordnung mit einer Anschlusswand,

Fig. 11

eine nachträgliche nicht erfindungsgemäße Abdichtung eines Kellers von innen,

Fig. 12

eine zu Fig. 11 alternative nicht erfindungsgemäße Innenabdichtung,

Fig. 13

bis Fig. 15 eine nachträgliche Außenabdichtung,

Fig. 16

ein Detail eines Schalungselements an einer Spannstelle,

Fig. 17

eine Spannstelle,

Fig. 18

ein abwinkelbares Schalungselement als Variante zu Fig. 7 und Fig. 8,

Fig. 19

eine Ausführung eines abwinkelbaren Schalungselements in einem Eckbereich,

Fig. 20

eine Schrittabfolge für die Herstellung eines Bauwerkteils,

Fig. 21

die Herstellung einer Abdichtung einer Deckenplatte.

The invention is illustrated below with reference to advantageous embodiments with reference to the figures still in detail. Showing:

Fig. 1

Versions of formwork elements,

Fig. 2

a first embodiment of a concrete wall in cast-in-situ construction,

Fig. 3

a variant too Fig. 2 with poured gap,

Fig. 4

a version with joint tape connection,

Fig. 5

Shuttering elements in the manufacture of a floor slab,

Fig. 6

a wall connection to Fig. 5 .

Fig. 7

a formwork element to Fig. 5 in the stretched state,

Fig. 8

the formwork element after Fig. 7 in angled condition,

Fig. 9

an edge formwork element for a concrete slab,

Fig. 10

an arrangement with a connecting wall,

Fig. 11

a subsequent non-inventive sealing of a cellar from the inside,

Fig. 12

one too Fig. 11 alternative non-inventive inner seal,

Fig. 13

to Fig. 15 a subsequent external sealing,

Fig. 16

a detail of a shuttering element at a clamping point,

Fig. 17

a tension point,

Fig. 18

an angled formwork element as a variant to FIGS. 7 and 8 .

Fig. 19

an embodiment of an angled formwork element in a corner region,

Fig. 20

a sequence of steps for the manufacture of a building part,

Fig. 21

the manufacture of a seal of a ceiling tile.

In Fig. 1 Different embodiments of a formwork element according to the invention are outlined, each with a dimensionally stable plate-shaped support TP hereinafter also referred to as a carrier plate, is provided. Advantageously, the support plate made of concrete or plastic, in particular made of rigid plastic foam.

In Fig. 1 (A) a first formwork element SHA is shown, in which a sealing web in the form of a film TF is glued on a plate surface designated as the front side VS of a carrier plate TP made of plastic by means of an adhesive layer KM. The film TF is preferably designed as a waterproof film and may also be additionally vapor-impermeable. On the side facing away from the support plate TP side of the film TF, this film is coated over its entire surface with a layer of a sealing material DM. The layer of sealing material DM is covered with a removable from the sealing material DM protective film SF to handle the formwork element easier and to protect the sealing material against contamination. The front side opposite side of the support plate TP, which faces away from the concrete of the building part in use of the formwork element is referred to as the back RS.

When the carrier plate TP is made of concrete, the carrier plate TP is advantageously connected to the film TF via a layer of said sealing material instead of the adhesive layer and a creep-water-tight interface formed between the concrete of the carrier plate and the sealing material. For this purpose, in the production of the auxiliary element, the concrete material of the carrier plate is preferably cured on the sealing material layer.

The sealing material typically has even strongly adhesive properties, so that even with non-concrete support plate, the film TF can be connected via a layer of sealing material with support plate. This in Fig. 1 (B) illustrated formwork element SHB again has a support plate TP, the front side VS is directly connected to a film TF. This can be done, for example, in an advantageous embodiment in that the plastic material of the carrier plate TP is applied directly to the film TF, in particular foamed and firmly connects to this. On the side facing away from the support plate TP side of the film TF is again a surface sealing material DM applied to the film TF. Im in Fig. 1 (B) In the sketched example, the foil follows the lower edge of the upper edge and the upper edge of the sketch Fig. 1 (B) given boundary of the support plate with foil sections FU or FO addition. Such projecting portions are particularly advantageous for the connection of the formwork element SHB to other formwork elements or other formwork parts or sealing elements.

At the in Fig. 1 (C) sketched formwork element SHC is on the front VS of the carrier plate as in the example of Fig. 1 (A) glued over a layer of adhesive KM a film TF or connected to a concrete support plate in the manner described about sealing material. On the side facing away from the support plate of the film TF, a layer of sealing material DM is applied. The film TF is similar to Fig. 1 (B) beyond the top edge OK of the carrier plate TP out, wherein the adhesive layer KM or a layer of sealing material on the protruding part of the film FO may be present. At the lower edge of the carrier plate UK is the example Fig. 1 (C) folded over the film and along the lower edge to the back RS of the carrier plate and a little way along this led. The envelope of the film with the sealing material DM can already be prepared by the manufacturer of the formwork element in the outlined form or even by the user by turning over a protruding as in the top edge OK of the support plate TP film section in Fig. 1 (C) be made.

The adhesive material KM, which in the examples Fig. 1 (A) and Fig. 1 (C) is provided, may be identical to the sealing material DM in an advantageous embodiment.

In Fig. 1 (D) is a formwork element SHD sketched in which a type of Fig. 1 (B) Foil TF connected to a carrier plate TP is provided with a sealing material DM only in the area of the lower edge UK of the carrier plate for a short section compared to the overall extension of the carrier plate TP.

In other unspecified embodiment, the sealing sheet connected to the carrier plate may be a so-called bituminous foil known per se, in which a typically fibrous material forming a carrier foil is interspersed with bitumen. Such a bitumen film on the plate-shaped carrier can form a water-tight interface with hardening concrete, in particular by a surface roughness and / or bitumen present on the surface. In yet another embodiment, the surface facing the concrete may be formed by a plastic surface which is unevenly structured with projections and / or depressions.

The features of the different versions of the formwork elements Fig. 1 (A) to Fig. 1 (D) are in addition to the outlined variants in other combinations feasible. The individual features of the various embodiments are, if not mutually exclusive, transferable between the various outlined embodiments. The described formwork elements are advantageous as prefabricated parts manageable and advantageously used in many ways in the manufacture of building parts.

The geomembrane on a plate surface of a carrier plate can also be made without a film solely by a pure layer of the sealing material, which is applied directly to the plate surface.

Fig. 2 shows a section of a basement as a building part with a bottom plate BP and a wall plate WP, which rests on the top OS of the bottom plate BP. Base plate BP and wall plate WP were assumed to be made of impermeable concrete. In the manufacture of such a building element in cast-in-situ construction, first the bottom plate BP is poured, wherein in the edge region in which later the wall plate WP is made, in the concrete of the bottom plate BP a joint tape FB is partially poured, but over the top of the bottom plate BP protrudes. The joint tape FB, which may in particular be a metal sheet or a plastic tape, is preferably coated with said sealing material, which forms a creep-water-tight interface with hardening fresh concrete.

After curing of the bottom plate BP an outer plate formwork SA and an inner plate formwork SI are placed on this in a conventional manner and kept in a defined mutual position to each other. In the intermediate space between the two shuttering panels SA and SI, a shuttering element of the type shown in FIG Fig. 1 arranged type, advantageously held on the inside of the formwork panel SA, which advantageously extends down to the top of the bottom plate BP. In the example sketched, a formwork element SHD is the in Fig. 1 (D) sketched type chosen. The gap between the inner sides of the shuttering panels SA and SI to be intertwined is reduced by the shuttering element SHD. In the cavity between the shuttering element SHD and the Inner surface of the shuttering plate SI, in which also in Fig. 2 Not shown reinforcement elements can be arranged, fresh concrete is filled, which forms with the sealing material DM at least in the region of the lower edge of the shuttering element SHD and with sealing material on the protruding into the cavity portion of the joint tape FB during curing each creep-water-tight interfaces. After curing of the filled fresh concrete to the wall plate WP the formwork panels SA, SI are removed again. The formwork element SHD remains on the outside of the wall plate WP and is also mechanically firmly connected thereto via the creep-water-tight interface. When the carrier plate is designed as a rigid foam plate, the carrier plate can at the same time form a heat-insulating layer on the outside of an outer wall.

Although at the bottom and the side surface of the bottom plate and on the outside of the formwork element SHD pending water can penetrate slowly on the top OS of the bottom plate BP at the interface to the wall plate WP, but this passes only up to the joint tape and this can because of the Curing the fresh concrete with the sealing material formed Kriechwasserdichten interface not overcome. The penetrating water between the upper side OS of the bottom plate BP and the lower edge of the wall plate WP water can not penetrate up to the outside of the concrete wall plate, because the sealing material DM forms in the region of the lower edge of the shuttering element SHD with the concrete of the wall plate turn a creeper-water-tight interface , The concrete of the wall panel WP and the bottom panel BP is, as provided, impermeable to water. It thus arises by using the easy-to-handle formwork element within a conventional slab formwork for the wall plate WP made in Ortbetonbauweise structural part, which is permanently tight even when urgently pending water. In particular, it is advantageous that the handling of the formwork element at the construction site out of itself is easy to understand and therefore errors due to incorrect handling are hardly to be feared. The concrete facing surfaces of sealing material, as long as they are still accessible in the construction of the formwork, both the shuttering element and the joint tape FB advantageously with a protective film, such as a plastic film or a wax paper, covered and are only in the course of installation of the Formwork exposed.

In Fig. 3 an embodiment is sketched, which the embodiment according to Fig. 2 is largely similar, so to the comments too Fig. 2 Reference is made. Significant difference of the embodiment according to Fig. 3 compared to the embodiment according to Fig. 2 is that in the embodiment according to Fig. 3 that in the production of the bottom plate in this with overhang over the top OS of the bottom plate concreted joint tape is not in the middle of the wall plate WP, but is offset to the outer edge of the concrete wall plate WP, so that only a comparatively small horizontal distance between the joint tape FB and the shuttering element SHD. In the gap SD between joint tape FB and formwork element SHD is poured, preferably in a heated state, sealing material DM. The sealing materials DM on the cavity-facing side of the formwork element SHD, on the joint tape FB and the casting in the gap SD may advantageously be the same. By casting the gap and the intimate connection of the sealing material of the joint tape and the formwork element with the cast sealing material results in a watertight barrier at this point.

Fig. 4 shows a variation over the Fig. 3 in such a way that in the embodiment according to Fig. 4 instead of a rigid joint tape FB the Fig. 3 now a flexible joint tape FF is in the production of the bottom plate BP is concreted into this with overhang over the top OS and the over the surface OS projecting portion of the flexible joint strip FF is connected to the formwork element SHD in the lower region. The connection can be made in particular by gluing the sealing material on the joint strip FF with the cavity facing the sealing material of the formwork element SHD, which is made possible by the flexible joint tape FF even with not completely straight course and / or not consistently accurate position of the flexible joint tape. Preferably, the sealing material DM on the plate surface of the formwork element SHD extends from the top side OS of the bottom plate BP away higher than the flexible joint strip FF. Gaps in the bonding of the flexible joint tape FF SHD with the formwork element are uncritical that water may penetrate through such gaps under certain circumstances to the top of the flexible joint tape FF, but from there can not advance further up because of the hardened concrete wall plate WP forms a watertight interface with the sealing material on the formwork element SHD and because the hardened concrete of the wall plate WP at the same time with the sealing material on the groundbreaking of the formwork element SHD surface of the flexible joint strip FF forms another Kriechwasserdichte interface. The in the cavity between the shuttering element SHD and the inner shuttering panel SI ( Fig.2 ) filled concrete pushes the flexible joint tape with high force against the formwork element SHD, so that there is usually a tight bond over the sealing material.

In Fig. 5 is shown an advantageous embodiment with a closed so-called black tub. In this case, one or more formwork elements in the form of carrier plates TPB with an upwardly facing film or flat already in the manufacture of the bottom plate on the ground Layer of sealing material arranged. A side formwork with shuttering elements SHS limits the space for the bottom plate BP laterally circumferentially and has the bottom plate to another layer of the sealing material. The sealing material layers below the bottom plate and at the edge of the bottom plate can advantageously be replaced by an overlapping foil section as in FIG Fig. 1 (B) or an inserted into the angle of the formwork elements below the bottom plate and laterally the bottom plate band BW be connected to each other. It can also be provided that the sealing material layer on the formwork elements below the bottom plate BP continues below the formwork elements SHS at the edge of the bottom plate and the formwork elements SHS at the edge of the bottom plate with a guided at the lower edge to the outside sealing material layer as in Fig. 1 (C) are provided, which is glued on the sealing material layer of the formwork elements below the bottom plate.

Advantageously, in the embodiment according to Fig. 5 further provided that the layer of sealing material is continued by the formwork elements SHS on the top OS of the bottom plate in the laterally projecting later wall plate area, for which there is another formwork element SHO is provided. The surface of sealing material, which is preferably present on a film is guided by the formwork element SHO in a section DSO upwards and, as in Fig. 6 outlined with a formwork element, such as after the type of formwork element SHA after Fig. 1 (A) in the to Fig. 4 glued with the flexible joint tape FF similar type. It arises in this way a continuous waterproof boundary of the bottom plate BP and the wall plate WP, in which both continuous water-tight interfaces between the concrete of the bottom plate and the concrete of the wall plate with the respective sealing material surfaces during curing of the concrete, as well as given advantageously continuous waterproof films could be. By creeping water-tight interfaces between the sealing material and the concrete of the bottom plate BP and wall plate WP is advantageously ensured that even with punctual damage to the waterproof film, the film can not be traced by water.

The formwork elements SHS side of the bottom plate and SHO at the top of the bottom plate in the edge region are advantageously formed by a uniform in the initial state element, which in the initial state in Fig. 7 is shown. In this case, two support plates TPS and TPO, which may have different thicknesses, with at least approximately in-plane front sides VSS or VSO connected to each other and a film with a pointing away from the support plates layer of sealing material is continuously on the front sides VSS, VSO continuously on the Support plates TPS, TPO attached and protrudes in particular on the carrier plate TPS remote from the edge of the carrier plate TPO. The carrier plates TPS and TPO are advantageously pivotable relative to one another in a joint region GE. Preferably, the two support plates TPS and TPO are connected in the hinge region GE via a plastically deformable element, for example via a metal strip, so that the combined formwork element after bending out of the in Fig. 7 sketched stretched shape in the Fig. 8 sketched angled shape by itself retains the angled shape with a certain angle. The over the support plate TPO projecting portion of the film with the sealing material is folded upwards. The angling of the carrier plate TPO of the combined element against the carrier plate TPS can after setting up the lateral formwork elements with carrier plates TPS already before pouring the fresh concrete for the bottom plate in the in Fig. 8 sketched position can be made, but it can also filled only the concrete for the bottom plate and then the support plate TPO angled against the support plate TPS and the sealing material of the shuttering element SHO are pressed onto the surface of the filled fresh concrete for the bottom plate.

Fig. 9 shows an arrangement in which a formwork element SHR serves as a front edge Abschalung a bottom plate BP. An area of sealing material DM is provided on the side of the shuttering element SHR facing the bottom plate BP and can advantageously be continued laterally beyond its top edge, where a possibility for seamless connection of a sealing material layer of a shuttering element during the production of the wall plate can be made. As a result, the continuation of an outer wall seal up to the lower edge of the base plate is particularly advantageously possible in a simple manner.

In Fig. 10 is a section of an advantageous construction of a built in Ortbetonweise building part with a concrete outer wall AW sketched over a concrete floor slab BP, wherein from the outside of the outer wall AW wegführend a connection wall is provided.

The erection of the outer wall AW takes place, for example, in Fig. 2 appropriate procedure. For this purpose, after completion of the concrete floor panel with a joint tape assembly FB on the bottom plate between facing formwork panels support plates WDW are arranged, which are provided on one side with geomembranes DBW. The sealing webs DBW in turn have on the side facing away from the support plates WDW a coating of said sealing material. The support plates with the geomembranes complement each other to form a thermal barrier coating, wherein a formwork element SEA is provided as a special feature at a connecting joint to a connection wall. In this formwork element SEA is turn a sealing membrane DBA facing the formwork space or the concrete of the outer wall AW. On the outside of the outer wall AW facing away from the sealing membrane DBA is a sealing strip DS, which is sealed along a vertical line with the outside of the sealing membrane DBA, led away from the plane of the sealing membrane DBA to the outside. On the outside of the geomembrane DBA on one or both sides of the sealing strip DS, in turn, carrier plates WDA are arranged, which can advantageously form a continuous thermal barrier coating with the carrier plates WDW. The sealing strip DS protrudes outward from the sealing web DBA beyond the carrier plates WDA. On the outside of the support plates WDW and / or WDA arranged shuttering panels SPA limit a formwork space for a connection wall, which is aligned away from the outside of the thermal barrier coating WDW, WDA. The connection wall is erected on a bottom plate connection section BPA. A connecting joint tape FBA protrudes from the bottom plate connecting portion BPA in the formwork space bounded by the shuttering panels SPA for the connection wall. The connecting joint tape FBA is advantageously continued up to the joint tape FB. The lower portion of the sealing strip DS is advantageously connected to the connecting joint tape FBA. A directed beyond the support plates WDA from the outer wall AW away protruding part of the sealing strip DS protrudes into the formwork space for the connection wall and is advantageously coated with said sealing material. In addition, reinforcing elements BEA can advantageously be held on the formwork element SEA, which are both anchored in the concrete of the outer wall AW and project into the formwork space for the connection wall. When introducing fresh concrete into the formwork space for the connection wall of the protruding part of the sealing strip DS and the connecting joint tape FBA or the layers of sealing material on the sealing strip and the connecting joint tape with the Fresh concrete contacted and hardening the fresh concrete this forms with the sealing material again the creep-water-tight interfaces.

By guiding the sealing strip DS of the voltage applied to the outside of the concrete of the outer wall AW geomembrane DBA away in the direction of the connection wall results in a particularly advantageous tight seal the outer wall also at the connecting joint to the connection wall under the same continuous thermal insulation by means of the support plates WDW, WDA.

The formwork elements of in Fig. 1 Outlined type with a dimensionally stable support plate and a, in particular applied to a film layer of sealing material are also advantageously for the renovation of leaking building parts, especially cellars, used. In Fig. 11 is a first example of an interior renovation of a basement with existing wall panels WPA and bottom plate BPA shown as a stock, which may be particularly useful and necessary if in existing buildings a previously running below the bottom plate groundwater level rises above the top of the bottom plate and penetration of water in the cellar is to be feared. According to the execution according to Fig. 11 be BTP floor support plates on the type of formwork elements of Fig. 1 arranged on the top of the bottom plate or a possibly laid basement floor. Wall support plates WTP are arranged on the inner walls of the wall panels WPA.

The preferably again formed by films geomembrane of the individual formwork elements are connected to the wall formwork elements with wall support plates WTP to a wall sealing web assembly and the bottom formwork elements with bottom support plates to a bottom sealing web assembly, which in the foot region of the wall sealing web assembly and are connected together in the edge region of the ground-sealing-web arrangement, wherein the wall and / or the ground-sealing-web arrangement is guided under the lower edges of the wall-supporting plates WTP. The connection of the individual geomembranes to the closed surfaces of the geomembrane assemblies and their mutual connection can be done by overlapping edges of geomembranes in overlapping areas UL or by sealing web joints overlapping sealing strips and bonding, welding or potting compound areas. Free areas of the wall and / or the floor sealing strip arrangement facing the interior IR are advantageously coated with the sealing material mentioned. By assigning the interior IR floor support plates, the entire arrangement is advantageously accessible without difficulty.

On the floor support plates BTP and the free surfaces of the ground-sealing membrane arrangement, a layer of fresh concrete is advantageously applied, which cures to a bottom inner plate IB and prevents by their weight floating or buckling of the bottom formwork elements. The on the existing base plate WPA or a laid on this floor with the interposition of one of the sealing sheet arrangements upstanding and thereby projecting below the top of the bottom inner panel IB wall support plates are securely through the bottom inner panel IB in position along the wall panels WBA stabilized. The wall support plates can additionally be fastened by anchoring elements to the wall panels WPA. The height of the wall panels or the wall sealing sheet arrangement depends on the maximum expected water level outside pending water.

In Fig. 12 is a variant too Fig. 11 sketched, in which the wall support plate WTP on the side facing away from the interior of the wall sealing strip arrangement, ie the existing wall plate WPA of the existing building part are arranged facing. The wall support plates are placed on the existing base plate BPA. The surfaces facing away from the support plates and the interior IR facing surfaces of the wall sealing strip arrangement are coated with the sealing material DM. Sealing webs of adjacent wall support areas are overlapping at joints of adjacent support plates or connected to each other by means of overlapping strips, in particular glued or welded. The lower edges of the geomembranes of the wall sealing sheet assembly are joined, in particular overlapping or by means of an overlying strip, to the bottom sealing sheet assembly to form a substantially dense trough. Smaller leaks in the trough are typically uncritical because of the creep-water tight interfaces that form with hardening fresh concrete.

A concrete layer for a bottom inner panel IB is again applied to the base support plate BTP ( Fig. 12 (A) ). This advantageously stabilizes the wall support plates and forms in the lower region of the wall sealing web arrangement and between the bottom support plates on the bottom sealing web arrangement with the sealing material present there respectively creep-water-tight interface.

After hardening of the bottom inner plate, a formwork arrangement VWS is arranged offset from the wall sealing web to the interior, which limits a formwork space for a front wall. This formwork space is filled with fresh concrete BV ( Fig. 12 (B) ), which applied with on this formwork space facing surface of the wall sealing sheet arrangement Seal material of the type mentioned forms again a Kriechwasserdichte interface during curing. The wall sealing membrane arrangement or the wall support plates can be anchored to the wall panels WPA via additional anchoring elements, which also penetrate the wall sealing membrane arrangement and can also protrude into the formwork space for the front wall VW. After hardening of the fresh concrete BV to the intent wall, the formwork assembly VWS is removed.

Another example of the use of the formwork elements with the layer of sealing material in Sanierungsfall is in FIGS. 13 to 15 sketched, where under the level of the ground reaching building parts, in particular outer walls of cellars, are subsequently sealed. For this purpose, for example, an outer wall GM is laterally exposed to the surrounding soil ER down and preferably in the foot region of the outer wall or a bottom plate this still away from the soil in a region FR stiffened ( Fig. 13 ), removing soiled and loose concrete parts and creating a rough surface. This can advantageously be pretreated with a primer which improves the connection with fresh concrete. Shuttering elements of in Fig. 1 , especially in Fig. 1 (C) The lower part of the external wall GM is filled with fresh first concrete material at a low level. In this concrete base, the formwork elements SHG are sunk ( Fig. 14 ), which may have, in particular in the region of their lower edges, sealing material of the type mentioned, which forms a creep-water-tight interface with the fresh concrete of the concrete base. The first concrete material, which may be formed for this purpose by a special batch mixture, forms on the prepared surface at the foot of the outer wall GM on the one hand and on the lower edge of the carrier plates on the other waterproof connections. On the support plate, the sealing material may be provided only at the lower edge. Advantage-way legally extends the geomembrane and preferably also the sealing material on the outside of the base wall GM assigning surface of the support plate further upwards and in particular over the entire height of the support plates. After hardening of the concrete base BS, the gap between the formwork element SHG and the typically irregular outside of the foundation wall is filled up with a second concrete material, in particular with flowable concrete LB, as in FIG Fig. 15 outlined. Thereafter, the outside of the formwork element SHG can be filled with soil again.

A particularly advantageous embodiment of a formwork element provides that parts are integrated for clamping points in the support plate. Clamping points are used to keep opposite formwork panels with the interposition of spacers for the time of filling with concrete until its curing at a defined distance. In Fig. 16 is a section through parts of such a clamping point outlined in a support plate of a formwork auxiliary element. In the plate body of the support plate TP an insert EP is inserted, in particular cast, which forms a breakthrough through the plane of the plate, or in which such breakthrough can be produced. One side of the carrier plate is again provided in the manner already described with a film TF and a layer of sealing material DM on the side facing away from the carrier plate TP side of the film. A tubular attachment element RA is inserted into the opening through the insert body EP and pressed or screwed into these, for example. On the side of the sealing material, a counter element DG is integrally connected to the tubular projection element RA or surrounds this under mutual radial seal, for example, in which the counterpart DG pressed onto the pipe socket RA, glued or otherwise sealed radially against this. The counterpart DG is pressed against the layer of the sealing material so far that surrounding the neck element RA annular surface between the counterpart DG and the Sealant is impermeable to water. For a clamping point between opposite shuttering panels, a spacer tube tuned to a required spacing of the shuttering panels or cut to length can be plugged and axially supported. When fresh concrete is poured into the intermediate space between facing shuttering panels, this fresh concrete again forms a creep-water-tight interface during curing with the sealing material DM. An opposite during shuttering formwork panels through the extension piece RA and a not shown with spacers guided tensioning element, in particular a threaded rod is removed after curing of the concrete again and the passage through the neck element RA can be sealed watertight by a stopper.

A formwork element with an insert in the manner of Fig. 16 is particularly advantageous for the production and sealing of channels, in particular under floor slabs of buildings and / or in the usual tension of facing shuttering panels, for example SA and SI in Fig. 2 ,

In others, in Fig. 17 sketched embodiment, a support element SZ for a clamping point as part of a spacer AH of the cavity or the concrete facing side of a formwork element SHB is inserted into a bore AB in this formwork element and on a circular surface surrounding the bore surface with a collar BU against surface a layer of sealing material DM supported. An attachment piece AS of the support element SZ projects axially from the collar BU, ie into the bore AB in the direction of the axis of the bore, but is shorter than the depth of the bore AB given by the thickness DS of the formwork element. An axially projecting in the direction of an opposite formwork panel SI spacer tube DR can be tailored to the length required in the individual case or tailored and on the support element be put on. When clamping the opposite formwork panels SA, SI against each other, for example by means of a spacer AH, with support element SZ, spacer tube DR and openings in the formwork SA, SI performed threaded rod GS and at least one clamping nut SM of the collar BU of the support member SZ is firmly against the Sealing material DM pressed and forms with this a reliable seal in the form of a surrounding the bore AB dense annular surface. After hardening of the wall concrete and removal of the clamping elements, the remaining passage can be easily and reliably closed by inserting a sealing element in or over the opening in the support element. The concrete-facing surface of the support member may be at least partially annular additionally coated with the sealing material and there again form a Kriechwasserdichte interface with the hardening concrete. The shuttering element can in particular be advantageously produced without drilling and arranged on the shuttering plate SA and only then bores AB are generated at existing in the shuttering plate SA holes.

In Fig. 18 is one too FIGS. 7 and 8 sketched alternative formwork element for the side surface and the protruding portion of the bottom plate with a wall connection portion, wherein Fig. 18A shows the angled formwork element and Fig. 18B the ability to unfold the angled formwork element from a flat plate blank.

The angled formwork element after Fig. 18A has a vertical in the installed position first plate portion ABS whose height HBP is approximately equal to the intended height for the bottom plate. As a rule, the thickness of the bottom plate will be slightly larger than the height HPB of the first plate section ABS.

At the upper edge of the first plate section ABS is followed by a second plate section ABH, which extends substantially horizontally and the depth UBP in the horizontal direction is substantially the lateral projection of the base plate to be cast on the outer surface of the side wall to be built on the bottom plate. At the second plate section ABH, at the end facing away from the first plate section ABS, a third plate section AWA adjoins, which is oriented substantially vertically with its plate plane.

The shuttering space for the base plate or on this to be erected side wall facing surfaces of the first, second and third plate portion are advantageously provided with the sealing material DM already described several times, advantageously secured via a first, second and third section continuous support film on the plates is and in turn is coated on the side facing away from the plates side of the film with the sealing material.

In the extended form of the formwork element after Fig. 18B For example, the first plate section ABS, the second plate section ABH and the third plate section AWA lie in one plane and may, in particular, be made from an initially continuous panel. To the in Fig. 18B downwardly facing surfaces of the first, second and third plate portion is advantageously provided a support film DMF, which passes over the three plate sections and connects them mechanically.

Between the first plate section ABS and the second plate section ABH, a section SG parallel to the lower edge UKA of the first plate section is provided which preferably passes over the predominant part of the plate thickness. Between the second plate section ABH and the third plate portion AWA is formed by a groove formed by two oppositely inclined miter surfaces NG.

At the unfolding of the flat element after Fig. 18B in the angled form Fig. 18A the first plate section ABS is angled at the section SG in the direction of the arrow F12 relative to the second plate section ABH and the third plate section AWA is angled in the direction of arrow F23 relative to the second plate section ABH, wherein the miter surfaces of the groove NG are moved towards each other. The plate sections remain connected via the carrier foil DMF at the bend and in the bent state, and the carrier foil with the sealing material forms a layer passing through the bend and the plate sections. The sealing material is advantageously already in the planar state Fig. 18B applied to the carrier film DMF and covered by a protective film.

Fig. 19A shows analogously to Fig. 18B a planar embodiment of a bendable formwork element for a corner region, in which a first plate portion VBS along a section line SGV adjacent to a second plate portion VBA. Between the second plate section VBH and a third plate section VWA, in turn, a groove NGV is formed with opposing inclined miter surfaces. The length of the third plate section VWA in the direction of the groove NGV or of the parallel section SGV or the lower edge of the first section is less than the length of the first section in the same direction. The second section is designed to extend at an end edge from the first section to the third section or from the section SGV to the groove NGV obliquely against the longitudinal direction of the groove NGV or the section SGV, preferably with an inclination of 45 ° with respect to the longitudinal direction , The difference in length between the first plate portion VBS and the third plate portion VWA is then substantially equal to the depth UBP of the second plate portion and substantially corresponds to the extent of the supernatant of the bottom plate to be produced laterally over an outer surface of a concrete wall to be erected on the bottom plate.

Fig. 19B shows a formwork element VSR of in Fig. 19A in a stretched version shown type in angled form, wherein the bend analogous to that in FIGS. 18A and 18B Shuttering element shown can be done. In Fig. 19B is next to that from the flat shape Fig. 19A folded formwork element VSR a complementary further formwork element VSL shown, which is constructed substantially mirror-symmetrical to the formwork element VSR and forms with this a Eckbereichs formwork in which the first plate sections VBS laterally define a bottom plate formwork space on two mutually perpendicular sides and the second Plate sections VBH limit the lateral projection of the formwork space or the bottom plate on the outer sides of to be established on the bottom plate side walls. The vertical third sections VPA limit the formwork space for the side wall arrangement to be erected on the floor panel in its lower area. the butt joint EG between the two formwork elements is preferably pasted over the surfaces having the sealing material on the carrier film by a band BV which is itself provided with sealing material on the surface facing away from the plate sections of the formwork elements.

Fig. 20 shows in several figures successive steps in the manufacture of a building part with a concrete floor slab and a concrete wall arrangement erected thereon.

In Fig. 20A It is shown that over a substrate, in particular a cleanliness layer SAS, a vertically oriented formwork panel SSP is set up, whose vertical alignment is ensured by a support arrangement, presented by a support SST, for the duration of the production of the floor panel. On the cleanliness layer SAS a lower shuttering plate TBP is arranged, which limits the formwork space for the bottom plate down. The upwardly facing surface of the lower shuttering panel TBP is preferably coated with said sealing material DM. The lower shuttering panel DBP extends substantially with a side edge up to the formwork panel SSP.

The different plate elements are in Fig. 20A and the following figures, for the sake of clarity, are shown cut away, but in the real construction, shuttering structures revolving around the base plate are joined together.

Starting from Fig. 20A be on the lower formwork panel TBP formwork elements of in Fig. 18 and Fig. 19 set up, the angling of these formwork elements can be done before placing on the lower formwork panel TBP or thereafter. Fig. 20B shows an erected on the lower shuttering plate TBP angled formwork element of the type Fig. 18 , which rises with its lower edge on the lower formwork panel TBP. The first plate section ABS of the angled formwork element bears laterally against the shuttering plate SSP and is supported on this. The first section ABS of the angled formwork element may be provisionally held on the formwork plate SSP.

The first plate section ABS of the angled formwork element stands with its lower edge on the lower shuttering plate TBP. The sealing material surfaces DM on the upper side of the lower shuttering plate TBP and the shuttering space for the bottom plate zuzustenden inner surface of the first section ABS of the angled formwork element form an angle which is advantageously bridged by a band BBS, which is preferably provided on its the formwork space facing surface with the sealing material ,

In the formwork space for the bottom plate is as in Fig. 20C represented a reinforcing arrangement BEB set up, which projects beyond the level of the bottom plate with a connection reinforcement in the region of the concrete wall assembly to be erected on the bottom plate. At such a connection reinforcement can advantageously be supported on HAW holding elements, the angled formwork element.

At the after Fig. 20C Prepared formwork for the production of the bottom plate are advantageously the shuttering space assigning surfaces of the lower shuttering plate TBP, the first plate portion ABS and the second plate portion ABH and at least in a lower part of the third plate portion AWA coated with the sealing material and form, optionally together with the sealing material -Face of the glued into the angle band BBS a substantially continuous layer of the sealing material. Here are advantageously by the property of the sealing material to form with hardening fresh concrete a Kriechwasserdichte interface, local interruptions or disturbances of Dichtmaterialfläche without particular disadvantage, since even with local leaks by the formation of Kriechwasserdichten interface between the sealing material and the concrete of the bottom plate a spread of punctually to the bottom plate penetrating water is prevented.

In the after Fig. 20C prepared formwork for the bottom plate is introduced fresh concrete for the production of the bottom plate, the level of the bottom plate is a little higher than the downwardly facing surface of the second plate portion ABH of the angled formwork element, as shown Fig. 20D is clearly visible. During the filling of the concrete for the bottom plate and to the hardening of the concrete, the first plate portion of the angled formwork element is supported by the shuttering plate SSP. After curing of the concrete of the bottom plate BP, the shuttering plate SSP can be removed. The formwork element adheres firmly to the bottom plate via the sealing material surfaces and their connection with the hardened concrete of the bottom plate.

Above the second plate section ABH of the angled formwork element, an outer wall formwork panel WSA is erected, which is stabilized in its position and orientation by support elements, not shown. The third plate section AWA of the angled formwork element bears against the inside of this wall formwork panel WSA. The wall formwork panel WSA can stand up on the second panel section ABH if it consists of a sufficiently pressure-resistant material.

As in Fig. 20E shown, a support plate TPW is arranged on the inside of the wall formwork panel WSA, which abuts with its lower edge to the upper edge of the third plate portion AWA of the angled formwork element and the inner space or the formwork space for the concrete wall facing surface with the sealing material DM at least from its lower edge is coated ago. The butt joint between the third plate section AWA and the carrier plate TPW can advantageously be bridged by a band BWD, which is glued onto the sealing material DM of the carrier plate TPW and the third plate section AWA and in turn on the area assigned to the formwork space for the wall arrangement is coated with the sealing material. As a result, on the shuttering space between the third plate section and carrier plate continuous surface of the sealing material is generated on the formwork space for the wall assembly side.

Fig. 20F shows a step in which in the formwork space for the wall assembly, a reinforcement assembly BEW is arranged, which advantageously overlaps vertically with the projecting beyond the surface of the bottom plate connection reinforcement and can also be connected to this.

The formwork space for the wall assembly is limited by a further formwork panel WSI to the interior of the building part. The shuttering space is then bounded laterally by the facing surfaces of the inner shuttering panel WSI on the one hand and the third plate section AWA and the support plate TPW on the other hand. During the introduction of fresh concrete for the wall assembly in the formwork space for the wall assembly, the formwork panels WSA and WSI remain supported, whereby the upright position of the third plate portion AWA and the support plate TPW remain ensured. The filled in the formwork space for the wall assembly fresh concrete forms during curing turn with the sealing material to the concrete facing surfaces of the third section AWA and the support plate TPW and the band BWD Kriechwasserdichte interfaces and a fixed mechanical anchoring of the third plate portion AWA and the support plate TPW the concrete wall WP. After hardening of the concrete for the concrete wall, the outer wall formwork panel WSA and the inner wall formwork panel WSI are removed, and the building part is completed in this respect and has a permanent waterproofness over the creep-water-tight interfaces formed between the concrete of the floor panel BP and concrete wall WP of the building part, even at oppressive outside pending water. Depending on the material of the panel sections ABS, ABH, AWA and the carrier plate TPW can be given a more or less pronounced thermal insulation at the same time.

In Fig. 21 in three steps A, B and C, the preparation of a seal of a concrete ceiling slab is sketched, again using the described preferred plate-shaped formwork elements which comprise a support plate and a present on a plate side of the support plate layer of sealing material, preferably a film is connected to the carrier plate and the sealing material is present on the side facing away from the carrier plate of the film. It can be advantageously provided that the film with the sealing material on the type of execution of Fig. 1 (B) protrudes beyond the plate surface and along one or more plate edges forms a protruding film strip with sealing material.

In Fig. 21 (A) is shown in a sectional side view of a typical situation in which a to be supported on an existing wall assembly WA concrete ceiling slab to be produced.

For this purpose, a formwork form DS is arranged and supported in a defined position for the underside of the ceiling plate in a manner known per se, not shown in the figures. The upper side of the formwork DS determines the underside of the ceiling panel to be produced and closes off a formwork space for the ceiling panel down. In the example outlined, the formwork space is also laterally closed by the upper edge of the wall assembly WA and laterally by a formwork panel AS. The formwork panel AS may in particular of the same or similar type as the edge formwork panels for the production of a bottom plate in the preceding Examples be executed. The lateral shuttering panel AS can, in particular, have a layer DAS assigned to the shuttering space from the sealing material already described in detail several times. Such a layer of sealing material advantageously adjoins an outer Plattenbeplankung WAP on the wall assembly WA upwards and forms a continuous layer of sealing material to each of the concrete facing inner surfaces of the plates WAP and AS.

In the closed by the formwork DS down and upwardly open formwork space is in the in Fig. 21 (A) sketched situation already fresh concrete FBD filled for the concrete ceiling slab in the required height. The fresh concrete is still wet and free-flowing, if a support plate PD1, which preferably consists of foamed plastic and on a, in the installation situation down the concrete FBD assigning plate side a film DDU and on the side facing away from the film has a layer of sealing material. The film is advantageously around in Fig. 21 (A) on the right side side edge of the support plate PD1 continued upward with a section DDS, wherein on the side facing away from the support plate PD1 side of this film section advantageously in turn the sealing material is provided. With this along a side edge of the support plate PD1 continued upward foil portion with the sealing material, the support plate PD1 can be glued in particularly advantageous manner with the lateral formwork panel AS, in particular their inwardly facing side with the sealing material layer DAS. However, sealing material can also be provided in another embodiment only on the lateral formwork panel DAS or on the side edge of the support plate PD1.

The foil with sealing material is also above the plate surface area DDU in the form of a marginal strip area DFS on one of the lateral shuttering panel AS edge facing away and thereby advantageously provided in the edge strip portion DFS at the fresh concrete FBD assigning the lower side with the sealing material.

The carrier plate PD1 is in the in Fig. 21 (A) outlined direction of the arrow in the angle between the surface BDO of the fresh concrete FBD and the side shuttering panel AS and glued with its right side edge with the side shuttering panel AS and with the present at the bottom in the film sections DDU and DFS sealing material on the wet concrete surface of the fresh concrete FBD launched. This results in a surface contact of the wet fresh concrete with the sealing material layer at the bottom of the support plate PD1 in the in Fig. 21 (B) illustrated situation. After arrangement of the first carrier plate PD1 in the in Fig. 21 (B) sketched position is further away from the outer form AS AS another support plate PD2 attached to the outer formwork panel AS facing away edge of the first support plate PD1. The second carrier plate PD2 advantageously again has a layer of sealing material on its bottom side facing the fresh concrete FBD, in particular with the interposition of a film between the carrier plate PD2 and the sealing material. The sealing material layer is not continued in the sketched example in the second support plate PD2 at their right in the sketch side edge upwards.

The second carrier plate PD2 is in the arrow direction of Fig. 21 (B) with its right side edge attached to the left side edge of the first support plate PD1 in the sketch and placed on the surface BDO of the fresh concrete FBD with the downwardly facing layer of sealing material. In the overlapping region of the lower sealing material layer of the carrier plate PD2 with the lateral edge strip DFS of the carrier plate PD1 is obtained by the cold-self-adhesive property of the sealing material, a bonding of the edge region the bottom of the support plate PD2 with the edge strip DFS of the film of the support plate PD1, whereby a maintenance of the alignment of the support plate PD2 is ensured relative to the support plate PD1.

In a corresponding manner, in the entire surface on the surface PDO of the fresh concrete BFD is moved in two dimensions, by each additional support plates are applied to existing support plates. In this case, advantageously already laid carrier plate can be entered and used as a work surface when laying the other carrier plates. Entering the already laid carrier plates advantageously promotes still the intimate surface connection of the sealing material on the undersides of the laid plates with the surface BDO of the fresh concrete FBD.

After complete occupancy of the surface BDO of the fresh concrete FBD with such support plates, which can be considered in a conventional manner recesses for bushings, the support plates remain on the fresh concrete, with a large-scale intimate contact between the wet fresh concrete FBD and the sealing material on the undersides of the support plates is present. During curing of the fresh concrete, a creep-water-tight interface between the hardened concrete BD and the sealing material on the undersides of the sealing plates arises at these contact surfaces of sealing material and fresh concrete. Local imperfections, in which an intimate connection between the sealing material and the concrete of the ceiling plate has taken place or in the bonding of abutting support plates possibly open fine channels in the bonding of the overlapping edge strip areas are not problematic, as entering such channels water or damaging the Carrier plates and optionally provided with the sealing material films water at most to the end of the channels or to penetrate to the local defects, but can not spread because of the then creep-water-tight interfaces. The formwork DS is removed after curing of the concrete BD of the ceiling plate.

The invention is not limited to the exemplary embodiments described, but can be modified in many ways within the scope of expert knowledge.

Claims (15)

1. Method for producing a part of a building having a floor plate (BP) and a concrete wall arrangement erected thereon by the in situ concrete method and separating an interior space from the external surroundings, wherein fresh concrete is filled into a formwork space for the wall arrangement and is cured to form the wall arrangement, characterized in that the formwork space is at least partially delimited at its outwardly directed side by a plate arrangement comprising at least one carrier plate (TP) which, at least in a lower region, has a sealing sheet (DBW) which is directed towards the formwork space and which is coated with a sealing material which forms an infiltration-water-tight interface with curing fresh concrete, in that fresh concrete introduced into the formwork space of the wall arrangement is brought into contact with the sealing material and is cured thereon, and in that the carrier plate is left permanently on the outer side of the wall arrangement.
2. Method according to Claim 1, characterized in that a carrier plate consisting of concrete is used.
3. Method according to Claim 2, characterized in that the concrete of the carrier plate (TP) is connected to the sealing sheet (DBW) via an infiltration-water-tight interface with sealing material.
4. Method according to Claim 1, characterized in that a carrier plate (TP) consisting of plastic, in particular hard foam, is used and is welded or adhesively bonded to the sealing sheet (DBW).
5. Method according to one of Claims 1 to 4, characterized in that the plate arrangement is laid against a supporting surface of an outer formwork plate (SA) and is supported thereon during the curing of the fresh concrete of the outer wall.
6. Method according to one of Claims 1 to 5, characterized in that, during the production of the floor plate (BP), a sealing sheet (DBW) with the sealing material is applied to its peripheral side surface and is brought into contact with fresh concrete of the floor plate, wherein the floor plate side sealing sheet is continued beyond the surface of the concrete of the floor plate, and in that the sealing sheet of the carrier plate (TP) is connected to this part of the floor plate side sealing sheet.
7. Method according to Claim 6, characterized in that, during the production of the floor plate, a lower sealing sheet is arranged between the formwork space of the floor plate and a subfloor surface and is coated at least partially on its upper side with sealing material.
8. Method according to Claim 6 or 7, characterized in that the floor plate side sealing sheet and/or the lower sealing sheet are fastened to carrier plates.
9. Method according to one of Claims 1 to 8, characterized in that a vertical sealing strip (DS) is arranged so as to be guided outwardly away from the sealing sheet and projecting beyond the side of the carrier plate facing away from the sealing sheet.
10. Method according to Claim 9, characterized in that a connection wall leading away from the outer wall is concreted onto the projecting part of the sealing strip (DS).
11. Method according to one of Claims 1 to 10, characterized in that, at an opening in the carrier plate (TP) and in the sealing sheet (DBW), on the side of the sealing sheet facing away from the carrier plate, a supporting element having an opening which is aligned with the opening in the carrier plate and has an annular surface surrounding the opening is placed on the sealing sheet and is connected thereto in a sealing manner.
12. Method according to Claim 11, characterized in that the supporting element is adhesively bonded to the sealing sheet by means of sealing material applied to the sealing sheet.
13. Part of a building having a seal produced according to one of Claims 1 to 12, characterized in that the part of the building has at least one concrete surface of a concrete plate (BP) on which a layer of sealing material forms an infiltration-water-tight interface with the concrete, which is produced by curing moist fresh concrete in planar contact with the sealing material, and in that a carrier plate (TP) fixedly connected to the sealing material is arranged on the side of the layer of sealing material facing away from the concrete plate.
14. Part of a building according to Claim 13, characterized in that it is a basement of a building and the interface is formed on at least parts of the outer wall surfaces, with carrier plates situated on the outside.
15. Part of a building according to Claim 14, characterized in that it is a floor slab and the interface is formed on the upper side of the floor slab, with carrier plates situated on top.

Images