A waterproof underpass without having to interrupt the upper railway traffic.

The renovation of the Albairate road underpass was necessary due to the failure of the existing bentonite system.

The structure was restored with DRYflex resin injections in the movement joints and in the casting joints.

The underpass began to leak a few months after opening.

Drytech intervened from inside the building, without structural demolitions or external excavations and, above all, without limitations to the normal circulation of trains on the Milan-Vigevano line.

Like any Drytech renovation, this too allowed immediate verification.

Ownership: RFI Rete Ferroviaria Italiana

Restoration project: Ing. Maurizio Schiavo, Padova

Restoration company: D’Adiutorio Appalti e Costruzioni Srl, Montorio al Vomano

Drytech restoration:
277 m movement joints;
133 m joints.