One of the most important requirements of concrete is that it should be durable under exposure conditions. Various forms of deterioration can occur due to different exposure condition. The corrosion of reinforcement is considered to be one of the most frequent causes of such premature degradation. Addition of multifunctional admixtures may control these deleterious effects. Migrating corrosion inhibitors (MCI) are admixtures that delay the onset of corrosion and lower the corrosion rate. Superplastisizers are used to increase the flowability of concrete. Both types of admixtures are very important in concrete technology.
In this paper are presented the results of the combination of migrating corrosion inhibitor and superplasticizer in common dosage as one admixture. This new admixture synergistically improves both
the physical properties of concrete on rapid freezing and thawing and corrosion protection of the reinforcing steel.