Abstract: The problem of insufficient durability of reinforced concrete has become more and more serious and the main reason is the corrosion of steel caused by chloride ion. Among the measures of improving the durability of concrete structure, the application of inhibitor has been expanded because of its advantages of simple construction, low cost and high efficiency. This paper presented a new type of organic protective inhibitor containing amino ketone molecule. In order to study the effect of this inhibitor on the durability of concrete,the concrete specimens added different quantity of inhibitor are used to carry out the compressive strength test, water absorption test, chloride penetration test and accelerated carbonation test. Then the mechanical property, water resistance, chlorine resistance and carbonation resistance of concrete are evaluated respectively. The results showed that the durability of concrete was improved in a certain extent due to the addition of inhibitor.

Key words: corrosion inhibitor;mechanical property;water resistance;durability