CORROSION BEHAVIORS OF REBARS WITH DIFFERENT SURFACE STATES

The corrosion behavior of rebars with different surface states was studied by electrochemical technique and accelerated atmospheric corrosion tests.The reinforcing steel with different surface states had different corrosion characteristics.In the accelerated laboratory tests,the steel with oxide skin had larger corrosion weight loss than the steel with nude surface.In the simulated concrete solutions with no salt,both steels were protected.When the concentration of NaCl increased,the corrosion behavior of the steel varied considerably,and the corrosion rate increased,however,the steel with oxide skin showed better corrosion resistance than the steel with nude surface.