DE19503489C2 - Building protection plate - Google Patents

Description

The invention relates to a building protection plate for the insulation of building surfaces in contact with the ground. Such building protection panels consist of a plastic foam layer and a drainage. The building protection panels with the plastic foam layer on the building become a system brought. The drainage faces the earth side. The plastic foam layer causes one Insulation of the building area. The drainage guides the water emerging from the ground from.

Such building protection panels are known in various forms. For example, DE-OS 31 13 807 Insulating plates made of foamed plastic for external insulation and drainage from Basement walls for this purpose on the outside with vertical drainage channels are equipped. The channels are worked into the plastic foam. That has various disadvantages. On the one hand, the insulation effect of the Plastic foam sheet. On the other hand, the drainage channels fall in when milling or sawing to a considerable extent machined plastic foam material. The generated waste must be disposed of or recycled. Both are problematic.

Another disadvantage of the known plates is shown in the event of a disturbance in the drain function. As soon as a drain channel becomes blocked, the drain fluid builds up in the entire drain channel. At the end of the channels there is a cross line for the drain liquid intended. However, the cross line is ineffective for all faults before entering the Cross wire.

Otherwise, the formation of the channels is due to the low strength of the Plastic foam and the stress resulting from the earth pressure Plastic foam bordered. As a result of the earth pressure, considerable forces can be exerted on the plates  act. If the channels are too large, this will damage the plates in the Area of attack of the forces.

In addition to the known plates it should be noted that the in the plastic layer incorporated channels are covered with a fleece. The fleece is said to have an entry of Avoid soil in the drainage channels. Nonetheless, constipators form again and again.

According to an older proposal, optimal use of the thermal insulation Plastic foam layer with the help of a separate one placed in front of the plastic foam layer Drainage body possible. The drainage body consists of a profiled plastic film, which forms nubs and the plastic fleece at a distance from the plastic foam or the plastic foam layer holds. The plastic film is deep drawn to form nubs been. However, the areas of application for the film are limited.

Another drain plate is described in EP 0127824. This drain plate consists of a profiled plastic foam sheet. The profile is formed by channels. The canals run in the longitudinal direction of the plate on the earth-side surface. When installing the Plate with other plates put together so that a closed Plastic foam layer is created in front of the basement wall to be protected. The profile is in the Milled plastic foam plate that connects the vertical channels together.  

In one embodiment, the drain plate has a step fold at the edge. The drain plate is installed with the other drain plates so that the plates with the step fold at the edge mesh.

The step fold is complicated because it is not attached to the plate all the way round. Rather, only two abutting sides of the plate are the same Step fold provided. The other sides of the plate carry the corresponding other Step fold. The arrangement is made so that the plates are endless and in any direction can be laid flat overlapping with the step fold.

The drainage plate is described as a one-piece plastic foam plate. On a separate drainage section is not mentioned.

The invention is also based on the object of providing a building protection plate which has a optimal use of the plastic foam layer allowed. This is done with a building protection plate reached according to claim 1.

The solid molded body is particularly resistant to loads on the soil. This is particularly advantageous in the case of soil settling movements. Then in extreme circumference in the longitudinal direction of the plates causes a load. With usual thickness the solid molded body can easily withstand the resulting pressure.

The grooves / channels provided on the ground side can be vertical when installing the building protection plate run. In addition, horizontally running channels can also be provided. This allows different installation positions. The installation positions are based on the course of the Grooves / channels in the drainage body. If the grooves and channels run lengthways and crossways to the building protection plate, the building protection plate can both with a vertical longitudinal direction  as well as with a horizontal longitudinal direction become.

It is also conceivable to arrange the building protection panels inclined ter longitudinal axis. Then the grooves / channels run at otherwise vertical protection plate arrangement on the vertical building surface inclined. Which arrangement is the optimal one is shown in the each individual case.

The use of a solid molded body with knobs allows one any installation position. The knobs are extremely secure against ver darn because cross channels between the knobs exist that minimize the backlog.

DE-OS 29 36 586 shows a plate made of plastic foam Insulation of masonry, the masonry side with a majority is provided by projections in the form of nubs. The pimples are as with the plastic foam plates and Part of the foam layer. So that is from the publication Knobs are known and the knobs are solid, so not hollow educated. Nevertheless, the well-known knobbed plate has the same Chen insulation disadvantages like the plates described above with those running vertically in the plastic foam material Channels.

The depth and width of the grooves and channels in the invention The outer plates can be the same as, for example, from the DE-GM 91 07 313 is known, that is 5 to 30 mm depth and 5 to 20 mm wide. When using a molded body with knobs preferably the same widths and heights as for a molded body provided with grooves and channels.

The knobs can have different shapes. Be considered also shapes with all-round curves, d. H. Rounded nubs highest and roundest lowest between the knobs as well round cross-sectional shapes. The knobs can in the cross section of the Building protection panels have a wavy character. The waveform can be based on a certain mathematical function, e.g. B. one  Sine function can be selected. Other shapes can also be advantageous, e.g. B. with a Flattening of the knobs at the top. The flattening makes it easier to attach the textile.

Pyramids can also be used as the knob shape. The pyramids can be angular or have a round base. As square surfaces come z. B. squares or rectangles, also diamond-shaped surfaces. The surface of the pyramids can be in their Inclination can be freely selected within wide limits. The pyramids can also be used as Be truncated pyramids. This also facilitates the attachment of an intended one Textiles. Instead of pyramids, cones or truncated cones can also be used.

The massive drain body can be made of a wide variety of materials. In consideration come bodies made of mortar and / or plastic and / or glass fibers.

It is a connection between the solid molded body and the plastic foam layer intended. The connection can be made by the material of the molded body itself or by Auxiliary materials are effected. In the case of connection, it is important that the Drainage body has a similar expansion coefficient as the plastic foam layer owns. Otherwise there is a risk of curvature under the influence of heat Building protection plate or a detachment of the drainage body.

In a further embodiment of the invention, an advantageous combination of plastic and mortar takes place by using a plastic textile, which is brought into a wave shape and / or knob shape by hot forming. A fleece with a weight of 100 to 500 g / m ² is preferably used as the textile. The fleece can be a so-called random fleece or a grid fleece. The weight of the fleece is also a sign of the rigidity of the fleece after it has been deformed. With the specified weights, the fleece retains the desired farm after the deformation for the mortar filling. Alternatively, the fleece can be held in a support form for the duration of the filling and solidification of the mortar. When using the support form, a permanent shape can be achieved with the mortar alone. The mortar solidifies and adheres to the fleece, so that the fleece also retains its shape.

A silicone-coated is particularly suitable as a support form Support form or a form made entirely of silicone. Silicone has an advantageous release effect, so that the Mortar does not set in the mold. Instead of silicone other release agents can also be used.

If the thermoformed fleece is sufficiently strong Support forms for shape maintenance are unnecessary.

Instead of mortar, glue can also be used. Of The advantage is if mortar and glue are mixed with a filler are provided. Any minerals come as fillers, however also residues from the production of plastic foam layers into consideration. Usually the plastic foam layers namely made in the form of plates, being in use of extruders a surface treatment of the art produced foam strand and its cutting to length is necessary. The resulting chip material can again be granulated and be added to the raw material. Economically advantageous The use of this material as a filler in mortar is more important tel / glue of the drainage body.

A mixture of mortar, Plastic, water and recycled foam are used. In it the Mortar a proportion of 30 to 100 wt .-%, preferably 40 wt .-%. The plastic only serves to coat the mortar grains. The plastic content can be accordingly. The better that Mixing of the plastic in the mortar is the less the required amount of plastic. Through the plastic coating the mortar grains give the mixture a high elasticity ben.

Mixing the mortar with plastic foam particles can be conducive to the fact that the particles do not have a certain grain size exceed or not fall below. This is through  Grinding and / or sieving of the plastic foam particles reached. Furthermore, from It can be an advantage that the plastic foam particles are pre-wetted with mortar or cement paste become. This promotes the connection with the mortar during the subsequent mixing.

The water content in the mortar mixture is 2 to 10% by weight, preferably 4% by weight. The Recycled foam forms the rest of the mixture.

The mortar / filler of the drainage body can also be used at the same time Bring the drainage body to the plastic foam layer.

With the appropriate design, the filling causes, in particular, the use of Residual materials from plastic foam layer production, the same stretching behavior as the plastic foam layer. The shaped and filled textile is preferably on the another side of the plastic foam layer, preferably made of textile Glass fibers, applied. The additional textile serves to prevent soil from penetrating to prevent the space between the nubs or waves of the drainage body. The additional textile can be made of fleece or like the knobs or waves forming textile Tissues exist. The additional textile is attached by gluing, if necessary also by welding, if there are weldable materials. The Gluing is useful in that the same mortar is used to fill in the form Textiles has also served as an adhesive.

Various exemplary embodiments of the invention are shown in the drawing.

Fig. 1 and 2 show in a cut-Bauschutzplatte with a plastic foam layer 1, a deformed textile 3 and a further textile 2. The plastic foam layer 1 is formed in the exemplary embodiment by a 3 cm thick extruded polystyrene foam plate. The textile 3 is a synthetic fiber fleece, which has been made into a knob shape by hot forming by means of a heated stamping die and die. The individual knobs have a blunt top side 4 and, moreover, a round shape with a hyperbolic outer surface. The textile 3 can be designed as a fleece or fabric. After shaping, it is provided with a mortar filling 5 . The mortar filling 5 consists of conventional cement with sand and a filler. Minerals can be used as fillers. In the exemplary embodiment, the filler also contains residues from the processing of the plastic foam layer after extrusion. After leaving the extruder, the plastic foam layer is processed on the surface using a milling tool and cut to length using a saw. The resulting residues are mixed into the mortar 5 .

In the exemplary embodiment, the plastic foam layer 1 is placed on the mortar-filled textile 3 and then pivoted with the fabric 2 that the mortar-filled textile rests above and foam layer of the plastic is worn. 1 In this position, the mortar can harden and at the same time form an adhesive connection with the plastic foam layer 1 . Depending on the minimum layer thickness of the molded body, the molded body is more or less flexible and requires support from the plastic foam layer or the plate forming the plastic foam layer. The minimum layer thickness is the smallest dimension of the molded body. This is found in the deepest between the knobs or in the deepest of the grooves or channels or waves and denotes the distance from this deepest to the rear of the molded body and is 2 to 50 mm, in the exemplary embodiment 5 mm.

It is expedient to mold the molded body after production or hot hold the textile in a support form and after backfilling and slightly drying the mortar and after laying the Plastic foam layer forming plate with the support form turn. A turning device is suitable for this. The turning device tion can the support form and the plastic foam layer Grip forming plate and swivel through 180 ° without the Risk of slipping or undesirable bending of the not yet cured molded body is given.  

After hardening or after sufficient hardening, a glass fiber textile is applied to the head 4 of the knobs. The textile is labeled 2 and is glued to the heads 4 . The adhesive is spread on the heads 4 beforehand.

FIGS. 3 and 4 show a further embodiment having a textile 6, the frusto-pyramidal studs with a dimpled upper surface 8 and forms a rim 7.

Fig. 5 shows a further building protection plate with a plastic foam layer 10 , a textile 11 with filling 13 and a textile 12th The plastic foam layer 10 corresponds to the plastic foam layer 1 , the textile 12 to the textile 2 . However, the textile 11 is shaped differently from the textile 3 . The textile 11 has a wave shape in cross section. The waves form drainage channels 14 which run in the longitudinal direction of the building protection plate. In the exemplary embodiment, the filling 13 is the same as the filling 5 .

The channels 14 allow a vertical arrangement of the building protection plates. However, the Bauschutzplatten of Fig. 1 to 4 can be installed with any orientation.

In a further exemplary embodiment, which is not shown, the surface is shaped in such a way that a wave shape is also provided in a section transverse to the section according to FIG. 5. This also creates pimples, but with a hill-like course.

Claims (10)

1. Building protection plate for the insulation of building surfaces in contact with the ground, with a plastic foam layer and a front, additional drainage part, the drainage part being formed by a solid molded body with drain openings on the ground side, which is preceded by a textile that prevents the penetration of soil, characterized in that the massive molded body consists of a mortar or adhesive filling with a filler admixture. 2. Building protection panel according to claim 1, characterized in that the molded body partially consists of a mortar. 3. Building protection panel according to claim 1 or 2, characterized by a molded body made of is a textile that forms grooves and / or channels and / or knobs and / or waves and filled with plastic foam. 4. Building protection panel according to claim 1, characterized by a plastic portion in the mortar or adhesive filling ( 5 ) for coating the mortar grains. 5. Building protection panel according to one of claims 1 to 4, characterized in that the Filler at least partially from residues from the manufacture of Plastic foam panels is formed. 6. Building protection panel according to one of claims 1 to 5, characterized by a shaping textile ( 3 , 6 , 11 ) made of plastic. 7. Building protection panel according to one of claims 1 to 6, characterized by the use of a textile with a weight of 100 to 500 g / m ² . 8. Building protection panel according to claim 6 or 7, characterized by a thermoformed textile ( 3 , 6 , 11 ). 9. Building protection panel according to one of claims 1 to 8, characterized in that the molded body is glued or welded on the ground side with a further textile ( 2 , 12 ). 10. Building protection panel according to one of claims 1 to 9, characterized by a minimal Layer thickness of the molded body from 2 to 50 mm.