Lastfördelningslist för partiell ingjutning i ett betongrör, vilken list utgöres av både vulkat och ovulkat gummi

摘要

The pipe (2) includes a load distributing strip (5) with a first part (5) cast into the pipe and a second part (5) protruding in a substantially axial direction from a pipe end surface (6). The first part comprises rubber and the second part comprises a non-vulcanised rubber material with an outer layer of vulcanised rubber. A base ring for a pipe casting mould is used to form the end surface on the pipe. The ring has at least two slots extending in its circumferential direction for holding the rubber strips during casting of the pipe.