ANTICORROSION PERFORMANCE OF A NEW REBAR INHIBITOR

The anticorrosion performance of a new rebar inhibitor was evaluated through the tests of polarization curve,weight loss and half-cell potential.The permeability of the inhibitor was also characterized with EDS technique.The results indicated that the inhibitor could prevent corrosion of the rebar in concrete.When the chloride content was low,the efficiency of inhibition was as high as 85% suggesting that the effect was obvious,while the anticorrosion effect was not remarkable when the chloride content was high.The inhibitor permeated fast to the interior of concrete by painting and reached the surface of rebar,which played a good protective effect on the reinforced concrete of pipe frames.