DE202021001670U1 - Bottom profile for attaching a lining film to concreted round tanks - Google Patents

Abstract

Bottom end profile (10) for sealing between the bottom (30) and wall area (20) of a round container and for fastening a lining film (21) in the lower area of the container, characterized in that the fastening with the lining film (21) takes place in a materially bonded manner.

Description

The invention relates to a bottom end profile for fastening and sealing a lining film in the transition area between the container wall and the container bottom in the case of concreted round containers.

The bottom end profile is preferably installed in the desired position when the bottom slab is concreted and is firmly bonded to the lining film after the container wall has been stripped.

Containers that are lined with it are preferably large concrete tanks with a diameter of several meters, such as those used for storing substrates in biogas plants.

Such a bottom end profile is described in claim 1 and the following dependent claims.

In various industries, large amounts of liquid substances are stored in concreted round containers. These containers are usually produced individually on site and have different diameters and heights. To protect the concrete and / or to improve the impermeability to liquids, these containers are either provided with a protective concrete film when concreting or provided with a fabric film at a later point in time. In this case, the side wall is often completely covered, but not the floor area. In this case, a so-called backwardness can occur in the transition area between the wall membrane and the concrete floor. This means that the wall film is flowed behind with liquid, the concrete is damaged and corroded in these areas and that there may be leaks. A known way of fixing the lining foil is a closing profile which is screwed into the wall and holds the lining foil in position. On the one hand, this profile is complex to assemble and, on the other hand, the fastening screws are often only insufficiently fastened due to the quality of the concrete, which in turn can lead to backwardness.

The aim of the invention is to create a secure and tight fastening of the film at the transition area to the floor. For this purpose, when concreting the floor slab, a floor closure profile is concreted in the area of the later inner wall in order to realize the wall connection area with the floor in a liquid-tight manner. The full-surface lining of the container wall is then firmly bonded to this bottom profile, and the tightness of the container is thus ensured.

Such a bottom closure profile is described below in a preferred embodiment and is characterized by claim 1 and the following claims.

10

Bodenabschlussprofil

20

Behälterwand

21

Auskleidungsfolie

30

Bodenplatte

It shows a sectional view of a variant of the bottom profile in the completed round container

10

Bottom profile

20th

Container wall

21

Lining foil

30th

Base plate

The bottom profile ( 10 ) consists of an essentially I-shaped profile made of thermoplastic material or a mixture with elastomers, for example PP, LDPE, HDPE, PVC or EPDM. The bottom profile is preferably made of PP, LDPE or HDPE. Likewise, in the bottom profile ( 10 ) Be embedded in fiber or fabric reinforcements.

The surface is preferably made rough for better adhesion in concrete and for better sealing. This can be done by grinding the surface or by applying rough particles to the surface.

The height of the bottom profile ( 10 ) is preferably between 50 and 200mm, whereby the portion that is in the base plate ( 30th ) of the container is concreted in, is less than 50%, preferably 30 to 40%. The introduction into the base plate ( 30th ) takes place in such a way that the protruding part within the inner formwork for the container wall ( 20th ), but fits snugly against it. This means that only one protruding side of the bottom end profile ( 10 ) wetted with concrete, the other side basically remains clean. It may be necessary to clean this area, but this can be done without any problems using conventional cleaning methods.

This clean inner surface of the floor finishing professional ( 10 ) is combined with the lining foil ( 21 ) then firmly bonded. This can be done by welding or gluing. A welded connection, and in particular a welded connection, is preferably produced by means of extrusion welding.

Due to the material connection, the lining foil ( 21 ) on the one hand fixed that there can be no backwardness with the substrate and that the tightness of the container is guaranteed.

Therefore, the bottom profile ( 10 ) a secure attachment for the lining foil ( 21 ) in the lower container area and a secure seal between the bottom ( 30th ) and wall ( 20th ).

The bottom closure profile according to the invention ( 10 ) is described in claim 1 and the dependent claims 2-7.

Claims (7)

Bottom end profile (10) for sealing between the bottom (30) and wall area (20) of a round container and for fastening a lining film (21) in the lower area of the container, characterized in that the fastening with the lining film (21) takes place in a materially bonded manner. Bottom profile (10) Claim 1 , characterized in that the bottom end profile (10) is essentially I-shaped. Bottom closure profile (10) according to at least one of the Claims 1 and 2 , characterized in that the height of the profile (10) is between 50 and 200mm. Bottom closure profile (10) according to at least one of the Claims 1 to 3 , characterized in that less than 50% of the height in the floor area (30) is concreted in. Bottom closure profile (10) according to at least one of the Claims 1 to 4th , characterized in that the bottom profile (10) consists of thermoplastic from the group PP, LDPE, HDPE. Bottom closure profile (10) according to at least one of the Claims 1 to 5 , characterized in that the surface is roughened. Bottom closure profile (10) according to at least one of the Claims 1 to 6th , characterized in that the material connection is made by extrusion welding.

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