The circular columns of one of the piers of the airport flyover of Attiki Odos were found to suffer from extensive concrete cover deterioration and stirrups corrosion. The diameter of the columns is 1.2m and their height is 6m. In order to address the problems the following works took place:
- Corroded reinforcement cleaning and protection with corrosion inhibitors, and local rehabilitation of the concrete section cement repair mortars per EN1504.
- Confinement of the circular columns along their full height with several layers of Carbon Fiber Reinforced Polymers (CFRP).