Local reinforcing bar damage in r.c. members due to accelerated corrosion and loading

• Corrosion is the most common problems for reinforced concrete (r.c.) structures.
• Tests are performed on r.c. ties subjected to load and accelerated corrosion.
• A 3D scanning system is used to obtain a model of the reinforcement reduction.
• A distribution of the readings is obtained.
• A comparison with other tests present in literature is discussed.

Corrosion attack of steel in concrete has been studied by means of an experimental analysis on reinforced concrete ties under both static/cyclic loading and accelerated corrosion. Crack opening zones across crack locations due to load have been analysed; corrosion concentration around crack site has been observed. A quantitative evaluation of local damage is presented by means of a mechanical procedure using 3D scanning and data post-processing.The results show the influence of the presence of corrosion, stress amplitude and the type of loading on local damage. A comparison with other results found in literature is shown.