This study focuses on development of anti-corrosion agent with crack self-healing capabilities for reinforced concrete structures. New inorganic mix-proportions with swelling and expansion properties for crack self-healing capabilities were designed to conduct such as paste, mortar and concrete experiments. For the flow tests, W/C ratio of 0.35 was used for the cementitious paste. In case of mortar test, W/C ratio of 0.5 and C/S ratio of 1:3 were used. In case of concrete, mixing proportions of concrete; a W/B ratio of 52% and S/A ratio of 48% were applied to all concretes for the fluidity test, compressive strength, corrosion-ratio of steel bar on the NaCl 6% addition to mix-proportion. EPMA results revealed particular trends in the chemical composition, such as the formation of calcium alumina silicate materials in cracks. Moreover, Cl ions was decreased from surface to internal area in the concrete by self-healing effects. From these results, it was confirmed the fluidity, compressive strength, and anti-corrosion effect with self-healing capabilities.

Keywords: Anti-corrosion agent, Crack, Self-healing, Swelling, Expansion