Durability of reinforced concrete structures is now one of the questions that needs be solved in the civil engineering
sector. Through the comparison research on the indexes of anti-chloride permeability of concrete, the method using initial current
to calculate electric flux is proposed and the feasibility of this method in construction is proved; the correlation of the initial
currents of the tests of electric flux and penetration is further analyzed, then a synthetic method to test the electric flux and permeability
coefficient is proposed, which can make the indicators consistent and be beneficial to practical application and comparison.