Synergistic effects of nano-additives and corrosion resistance of reinforced concrete

This investigation focuses on the connection between reinforced concrete beams' mechanical and corrosion-resistant qualities and the application of nanoparticles. By adding different combinations of nanomaterials to the cement mix, such as nano-magnesium oxide (NMO) and nano-metakaolin (NM), the effects of these materials on both fresh and cured concrete are examined. To assess the compressive and flexural strength, tests were conducted at intervals of 7, 14, and 28 days for cubes, prisms, and beams. The goal is to determine how concrete's mechanical qualities are affected by varying percentages of cement substitution with nanomaterials. When 3% nano-magnesium oxide is added to the concrete, the characteristics are similar to those of regular concrete. Furthermore, the study examines how resistant reinforced concrete beams containing nanoparticles are to corrosion. To ascertain the beams' resistance to corrosion, tests including resistivity, half-cell potential, and fast chloride permeability are used. Certain combinations of nanoparticles are expected to improve the concrete's mechanical qualities and, consequently, its corrosion resistance. The research's conclusions might improve the robustness and lifetime of reinforced concrete buildings in several uses.