In order to protect overbuilt existing structures such as tunnels or channels from the load of a new building situated above, a load-free separation layer can be created between the existing structure and the new building using the Egcovoid® void former.
The Egcovoid® void former is quick to install and the cutting of a panel can be carried out easily with simple tools. The installation of valves enables the hose connection between the individual Egcovoid® void former panels and the panels are connected to the irrigation hose. Once the concrete has been poured and the concrete load-bearing capacity has been reached, the panels are irrigated in a controlled manner via the hose system. This guarantees correct functionality and thus relieves the load by providing a clear cavity generated between the top and bottom layers of the Egcovoid® units.