Environmental & Chemical Characterization for Structural Durability Assessment: High-Speed Rail Mariout Lake Bridge
Client:
Ministry of Transport / National Authority for Tunnels
Specialized environmental and chemical durability assessment to establish a 120-year structural design life baseline in an aggressive aquatic environment.
Project Overview
Comprehensive site characterization and environmental chemistry evaluation for the Mariout Lake Bridge segment of Egypt’s High-Speed Rail network, providing critical baseline parameters to safeguard structural integrity and verify long-term concrete and steel durability against severe marine and chemical exposure.
Our Role
- Served as an Independent Accredited Third-Party Consultant through an ISO 17025-accredited laboratory.
- Analyzed macro- and micro-climatic conditions, including temperature, humidity, and rainfall, using NASA POWER and Meteonorm meteorological databases.
- Conducted on-site environmental sampling and micro-climate measurements, alongside laboratory testing of freshwater and geotechnical soil samples.
- Performed accredited chemical analyses of aggressive agents, including chlorides and sulfates, and assessed atmospheric corrosivity in accordance with ISO 9223 and ISO 9225.
- Mapped environmental and chemical exposure conditions to applicable exposure classes under EN 206 and ECP 203 to support structural durability and design-life assessment.
Key Impact
Established a certified environmental and chemical loading baseline essential for confirming the 120-year design life requirement.
Delivered precise atmospheric corrosivity mapping based on ISO 9223 and ISO 9225 standards to guide material selection and protective measures.
Enabled the structural engineering team to mitigate aggressive chemical attack risks through standardized exposure class categorization.