Influence of long-term corrosion in chloride environment on mechanical behaviour of RC beam

Development of chloride-induced corrosion in pre-cracked RC beams under sustained loading: Effect of load-induced cracks, concrete cover, and exposure conditions

“…Published research results [39,45,47,48] report the relationship between diameter loss and the exposure time of the old beams. The relationships for tensile bars and compressive bars for the type-B old beams are shown in (a) and (b), respectively, in Fig.…”

“…According to François et al's model, the induction phase is shorter than the initiation phase in cases of uncracked concrete due to the fact that concrete located between cracks is under tension and therefore subject to mechanical damage, such as covercontrolled cracking [37,44]. That leads to a higher rate of chloride ingress [8,22] and interface damage that allows corrosion to spread more freely along the rebar [45].…”

Behaviour of corroded shear-critical reinforced concrete beams repaired with NSM CFRP rods

“…After 19 years of storage, it was decided to perform mechanical tests on the beams, the loading system was removed. However, because of the high chloride content [21] and storage conditions, corrosion continued to propagate.…”

Tensile strength and oxide analysis of carbon steel in concrete exposed in atmospheric environment for 53 years

“…In addition, some researchers [10][11][12] reported that the mechanical properties of reinforcing steel would be seriously degraded as the corrosion degree increased. By studying the mechanical properties of artificially and naturally corroded rebar, Zhang [10] and Yuan et al [12] found that the yield strength, the ultimate strength, and the ultimate strain of the rebar decreased as corrosion increased.…”