Anticorrosion Effect of Silane Type Surface Penetrants on RC Degraded by Carbonation

We studied on the anticorrosion effect by applying silane type surface penetrants on RC degraded by carbonation. Two types of carbonation residue and two types of environmental conditions after accelerated carbonation were prepared and investigation was made on the corrosion behaviour of reinforcing bars by applying surface penetrants. As a result, by blocking water penetration by applying surface penetrants, there was a difference in anticorrosive effect in the behaviour of half-cell potential, polarization resistance, and investigation of reinforcing bar corrosion after the end of exposure. From the above, this paper reports on the possibility of realizing anticorrosion effect by suppressing invasion of moisture from concrete surface to carbonated RC.