Concrete sewer structures in road construction are exposed to various aggressive environments – ice-melting chemicals, freezing and thawing cycles, abrasive load, etc. This leads to rapid corrosion of concrete, and sometimes to complete collapse of structures. In this project, the task was to completely restore the manholes. The work was carried out in very tight working space, autonomously at each repair site.
Work completed
Repair work
Custom-made pneumatic formwork and Betofix HQ3 quick-hardening poured material resistant to aggressive environments were used.