Abstract：The characteristics of corrosion inhibitor of alcamines and carboxylic acid ammonium were investigated in this study,by considering adding dosage,salinity and p H value. The results showed that corrosion inhibitor of carboxylic acid ammonium was found better performance than corrosion inhibitor of alcamines at different salinity and adding dosage. Furthermore,both of these corrosion inhibitors could enhance the strength of concrete for 4% ~ 10%. All of these results supported that both of these corrosion inhibitors could effectively inhibit corrosion of steel,and the performance of corrosion inhibitor of carboxylic acid ammonium was better than the alcamines one.

Keyword：reinforced concrete;corrosion inhibitor of alcamines;corrosion inhibitor of carboxylic acid ammonium;corrosion;