The 4th Asian Concrete Federation Symposium on Emerging Technologies for Structural Longevity (ACF2023- ETSL)

282 / 2022-09-29 22:54:17

Case studies of cathodic prevention and cathodic protection for reinforced concrete structures and steel-framed masonry structures

reinforced concrete structures, steel-framed masonry structures, corrosion, cathodic protection, cathodic prevention.

Corrosion of steel is one of the major factors affecting the durability of reinforced concrete infrastructure and steel-framed masonry structures such as bridges, buildings, parking structures, harbors and jetties, cooling towers due to the carbonation of concrete or mortar, ingress of chlorides from either marine environments or deicing salts, resulting in the serious loss of steel section,  the cracking, delamination, and spalling of concrete or masonry.

Cathodic prevention (CPre) is widely employed on newly constructed structures while cathodic protection (CPro) is generally used on existing structures, both are exposed to aggressive environments. This presentation reports an update on the application of CPre and CPro systems on bridges, buildings, nuclear cooling towers, jetties, etc. In the meantime, the design, installation, and performance monitoring of these systems are also included.