scope:

Scope of application

This technical code applies to the welding of sealing sheets made of polyethylene (PE) in the case of large-area sealing systems in order to seal dumps and to make contaminated sites safe.

In detail, sealing sheets made of PE are utilised in the case of the following measures:

- base sealing of dumps

- surface sealing of dumps

- surface sealing of contaminated sites

- enclosure of contaminated sites

This technical code is intended to give the responsible authorities, the customers, the executing companies and the quality management instructions for the execution of the joining work and of the weld tests and inspections on the building site.

In particular, the technical code takes account of the stringent requirements which, in the case of these applications, must be set on the quality of the welded joint and thus on the proper execution in a way suitable for the material.

Furthermore, it provides remarks for the laying of the sealing sheets as well as for the structural designing of welded joints between the sealing sheets and components made of polyethylene.