Wet-dry cycling condition is one of the most primary factors leading to the durability deterioration of reinforced concrete structures in the natural climate.In this paper water spraying and light shining were used alternately to simulate such phenomenon,and rebar's corrosion rate in chloride contaminated concrete under three conditions,such as wet-dry cycling,long time submerging,long time natural climate exposing,were compared through experimental studies and theoretical analysis.Mechanism and elementary ...