MCI TECHNOLOGY [2]

Migrating corrosion inhibitors are based on amino carboxylate chemistry. They are effective "mixed" inhibitors that work on both anodes and cathodes. Under normal conditions these substances increase the vapor pressure and this causes the inhibitor molecules to migrate through the pores in concrete. Once MCI's reach a metal surface they form a monomolecular film which is physically adsorbed on the metal's surface. Figure 2 shows the types of corrosion inhibitors available for use in concrete and also lists advantages and disadvantages of several of the approaches.

Figure 2: Types of corrosion inhibitors for concrete

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