And takes the method of passing electricity in wet environment to carry on the reinforcement corrosion acceleration to the reinforced concrete , and uses the linear polarization method to carry on the test to the polarized resistance and corrosion current density of the steel bar flowed through by electricity at different time , analyzing the rule of the change of the reinforcement corrosion parameters , and test the chloride ion diffusion coefficient to evaluate the impermeability of the concrete 本文以不同水灰比、不同含氣量、不同引氣劑的鋼筋混凝土為研究對(duì)象,采用濕通電法對(duì)鋼筋混凝土進(jìn)行加速銹蝕,同時(shí)采用線性極化法對(duì)不同通電時(shí)間的極化電阻和腐蝕電流密度進(jìn)行測(cè)試,分析銹蝕參數(shù)的變化規(guī)律,并通過測(cè)定cl -擴(kuò)散系數(shù)來評(píng)價(jià)其抗?jié)B性。