Advanced Monitoring and Analysis of Durability Challenges in Highway Infrastructure

Abstract The infrastructure of ASFiNAG, predominantly composed of prestressed and reinforced concrete bridges, is subject to natural aging and material‐specific degradation processes despite regular maintenance efforts. The primary degradation mechanisms affecting these structures include chloride ingress and carbonation, both of which lead to corrosion of prestressing and reinforcing steel, posing long‐term challenges to durability. An advanced monitoring system has been implemented and analysis were performed on multiple structures, including retaining walls and bridge abutments, to track sensitive parameters such as chloride contend, carbonation depths, temperature, humidity, electrical corrosion potential, and surface resistivity. These measurements, alongside environmental data such as temperature, precipitation, and de‐icing salt activity, are systematically collected and analyzed to establish correlations. This paper contributes to an improved understanding of the measurement data and provides insights into the assessment of condition and corrosion in reinforced concrete structures.