Hyosung Heavy Industries announced on the 16th that it has developed a 'concrete durability enhancement technology' that suppresses the corrosion of internal rebar in concrete.
This technology strengthens the alkalinity of the concrete matrix to increase carbonation resistance and is a dual composite technology that blocks moisture and carbon dioxide penetration through external coatings. Concrete carbonation refers to the phenomenon where carbon dioxide in the air penetrates the concrete and causes rebar corrosion.
It is also characterized by having a growth rate more than 10 times higher compared to existing water-based coatings. It effectively compensates for fine cracks in exterior walls, and its salt resistance in high salinity environments, such as coastal areas, is 2 to 3 times better than that of regular water-based products.
Hyosung Heavy Industries has been developing internal reinforcement technology for concrete in collaboration with Cheongju University and Southeast Company through industry-academia-research joint research since 2023. It has also completed 'concrete durability enhancement technology' by jointly developing external coating technology for concrete with KCC. In June, it received technical certification from the Korean Concrete Institute, the highest authority in concrete specialization in the country.
Hyosung Heavy Industries plans to expand the application of the technology to major construction projects, starting with the 'Harrington Square River Park' in Gwangju.
A representative from Hyosung Heavy Industries said, 'The technology developed this time is a convergence technology that ensures the long lifespan of buildings.'