Hello dear professor and researchers, I have a topic that I want to raise, so in the hopes of finding someone who has some information or has had a similar experiment, the subject is a steel bar corrosion implanted inside concrete samples containing nano-graphene oxide and made a reference sample for comparison, after immersing the samples in sodium chloride solution Nacl, approximately a year after measurement The corrosion rate appears stable, that is, chloride ions not pass the sample and reaches the iron, in this subject two hypotheses found, hydration products that may be formed after adding nanomaterial-GO make the sample denser hence closing the water pores, preventing the passage of chloride to the steel bar, or a passivating layer may be formed near the steel bar prevents chloride contact with steel bar, I'm looking for any relevant material or publications, I would appreciate it.