Method for producing water-sealed surfaces from cement-based materials

Abstract

A method for lateral-migration-preventing production of wall surfaces made of cement-based materials and sealed against water, more particularly of walls, of structures made of reinforced concrete, comprising: erecting an outer shuttering, applying a sealing material preferably to the full area of the inside of the outer shuttering, arranging a reinforcement in front of the inside of the outer shuttering that has been provided with the sealing material, applying an adhesion promoter to the sealing material through the reinforcement, erecting an inner shuttering, filling a cement-based material into the shuttering cavity formed by the outer and the inner shuttering, and hardening the material to form a solid bond between the cement-based material and the adhesion promoter located on the sealing material, a method for lateral-migration-preventing production of floor surfaces or surfaces made of cement-based materials and sealed against water, more particularly of floors and overhead surfaces of structures made of reinforced concrete.

Claims

1. A method for lateral-migration-preventing production of wall surfaces made of cement-based materials and sealed against water, comprising: erecting an outer shuttering (10), applying a sealing material (12) to the inside of the outer shuttering (10), arranging a reinforcement (16) in front of the inside (14) of the outer shuttering (10) that has been provided with the sealing material (12), applying an adhesion promoter (18) to the sealing material (12) through the reinforcement (16), erecting an inner shuttering (20), filling a cement-based material into a shuttering cavity (22) formed by the outer (10) and the inner (20) shuttering, and hardening the material to form a solid bond between the cement-based material and the adhesion promoter (18) located on the sealing material (12).

2. A method for lateral-migration-preventing production of floor surfaces made of cement-based materials and sealed against water, comprising: applying a sealing material (12) to a substrate (26), wherein said sealing material (12) forms a blinding layer, arranging a reinforcement (28) above the layer of the sealing material (12), applying an adhesion promoter (18) to the sealing material (12) through the reinforcement (28), incorporating a cement-based material from above into a shuttering erected before or after the arrangement of the reinforcement (28) around the substrate, and hardening the material to form a solid bond between the cement-based material and the adhesion promoter located on the sealing material (12).

3. A method for lateral-migration-preventing production of overhead surfaces made of cement-based materials and sealed against water, comprising: applying a sealing material to a substrate, wherein said sealing material forms a leveling layer, arranging a reinforcement over the layer of the sealing material, applying an adhesion promoter to the sealing material through the reinforcement, incorporating, a cement-based material from below onto the adhesion promoter, and hardening the material to form a solid bond between the cement-based material and the adhesion promoter located on the sealing material.

4. The method of claim 1 characterized in that the sealing material (12) is applied in the form of sealing membranes which are laid overlappingly and are adhesively bonded or welded in the seam region.

5. The method of claim 1 characterized in that the sealing material (12) is based on FPO, TPE, ECB, PVC, EPDM, EVA, or PE.

6. The method of claim 1 characterized in that the adhesion promoter (18) is applied by spraying.

7. The method of claim 1 characterized in that the adhesion promoter (18) is a polymer-based dispersion, emulsion, suspension or solution based on acrylate, bitumen, cements or other substances.

8. The method of claim 1 characterized in that before the adhesion promoter (18) is applied, the surface of the sealing material (12) is cleaned to remove soiling, by means of a liquid.

9. The method of claim 2 characterized in that the sealing material (12) is applied in the form of sealing membranes which are laid overlappingly and are adhesively bonded or welded in the seam region.

10. The method of claim 2 characterized in that the sealing material (12) is based on FPO, TPE, ECB, PVC, EPDM, EVA, or PE.

11. The method of claim 2 characterized in that the adhesion promoter (18) is applied by spraying.

12. The method of claim 2 characterized in that the adhesion promoter (18) is a polymer-based dispersion, emulsion, suspension or solution based on acrylate, bitumen, cements or other substances.

13. The method of claim 2 characterized in that before the adhesion promoter (18) is applied, the surface of the sealing material (12) is cleaned to remove soiling, by means of a liquid.

14. The method of claim 3 characterized in that the sealing material (12) is applied in the form of sealing membranes which are laid overlappingly and are adhesively bonded or welded in the seam region.

15. The method of claim 3 characterized in that the sealing material (12) is based on FPO, TPE, ECB, PVC, EPDM, EVA, or PE.

16. The method of claim 3 characterized in that the adhesion promoter (18) is applied by spraying.

17. The method of claim 3 characterized in that the adhesion promoter (18) is a polymer-based dispersion, emulsion, suspension or solution based on acrylate, bitumen, cements or other substances.

18. The method of claim 3 characterized in that before the adhesion promoter (18) is applied, the surface of the sealing material (12) is cleaned to remove soiling, by means of a liquid.

19. The method of claim 1 characterized in that before the adhesion promoter (18) is applied, the surface of the sealing material (12) is cleaned with water to remove soiling.

20. The method of claim 2 characterized in that before the adhesion promoter (18) is applied, the surface of the sealing material (12) is cleaned with water to remove soiling.

21. The method of claim 3 characterized in that before the adhesion promoter (18) is applied, the surface of the sealing material (12) is cleaned with water to remove soiling.

22. The method of claim 2 in which said sealing material is unreinforced concrete.

23. The method of claim 3 in which said sealing material is shotcrete.

24. The method of claim 1 in which the wall surfaces are structures made of reinforced concrete.

25. The method of claim 2 in which the floor surfaces are structure are made of reinforced concrete.

26. The method of claim 3 in which the overhead surfaces are structures made of reinforced concrete.

Description

(1) Further advantages and features of the invention will emerge from the appended claims and the subsequent description, which elucidates two exemplary embodiments in detail, using the diagrammatic drawings, in which:

(2) FIG. 1 shows stages of a method according to a first particular embodiment of the present invention; and

(3) FIG. 2 shows stages of a method according to a further particular embodiment of the present invention.

(4) FIG. 1 shows, from top to bottom, a sequence of steps in a method for producing wall surfaces made of cement-based materials and sealed against water, according to one particular embodiment of the present invention, it being possible for further method steps to take place between those shown. First of all an outer shuttering 10 is erected, on a substrate (not shown in FIG. 1). Then a sealing material 12 in the form of sealing membranes is applied over the full area of the inside 14 of the outer shuttering. More specifically, in this example, the sealing membranes are laid overlappingly and are welded, for example, in the seam region. The sealing material may be FPO, for example.

(5) Subsequently a reinforcement 16 is arranged in front of the inside 14 of the outer shuttering 10 that has been provided with the sealing material 12.

(6) In a further step, an adhesion promoter dispersion 18, with an acrylic basis, for example, is sprayed through the reinforcement 16 onto the sealing material 12. Normally here it is not possible to prevent the reinforcement 16 as well being at least partially coated with the adhesion promotor dispersion 18.

(7) Thereafter an inner shuttering 20 is erected on the substrate.

(8) Concrete 24 is then filled into the resulting shuttering cavity 22 and hardened to form a solid bond between the concrete 24 and the adhesion promoter dispersion 18 located on the sealing material 12.

(9) FIG. 2 shows a particular embodiment of a method for producing floor surfaces made of cement-based materials and sealed against water, at different stages (from top to bottom). This is a sequence of method steps, which need not indirectly immediately follow one another.

(10) In the present exemplary embodiment, the substrate 26 consists of a blinding layer of unreinforced concrete which is applied over the full area. Arranged on the substrate 26 is a sealing material 12 in the form of sealing membranes, the sealing membranes being laid overlappingly and adhesively bonded, for example, in the seam region. The sealing material 12 may be based on TPE, for example.

(11) Then a reinforcement 28 is arranged above the layer of the sealing material 12, after which an adhesion promoter dispersion 18, based on acrylate, for example, is normally applied by spraying through the reinforcement 28, in which case the reinforcement 28 as well is at least partly coated with the adhesion promoter dispersion 18.

(12) Thereafter, concrete 24 is poured from above onto the reinforcement 28, and the concrete is hardened to form a solid bond between the concrete 24 and the adhesion promoter dispersion 18 located on the sealing material 12. An encircling shuttering (not shown) may have been erected before or after the application of the reinforcement 28.

(13) If overhead surfaces are to be sealed, this may be done, for example, by adhesively bonding sealing webs to the substrate (ceiling or vaulted ceiling, for example) and plugging on a reinforcement with spacers.

(14) The features of the invention that are disclosed in the present description, in the drawings, and in the claims may be essential, both individually and in any desired combinations, for the actualization of the invention in its various embodiments.