Method for producing a tubbing with a thermoplastic sealing layer

Abstract

The core of the invention is a method for producing a tubbing of concrete for jacketing a tunnel, in particular a traffic tunnel, wherein the tubbing has a convexly curved outer surface and a concavely curved inner surface opposite the outer surface, comprising the steps a) placing a membrane comprising a hot-melt adhesive layer and a thermoplastic sealing layer on the outer surface and, furthermore, on all sides of the outer side surfaces of the tubbing, which sides face the outer surface, wherein the hot-melt adhesive layer faces the tubbing; b) supplying heat under the partial melting of the hot-melt adhesive layer; and c) cooling the hot-melt adhesive layer with formation of an adhesive composite between membrane and the tubbing.

Dependencies are inferred from the claim text.