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The repair of a French building classified as an historic monument must meet specific requirements, in particular very precise rules within the framework of the scientific and technical control exercised by the services of the French Ministry of Culture. Repair work must not alter the general appearance of the building or the nature of the materials. In this context, this paper discusses the various operations carried out on an iconic building of the Modernist Architectural Movement situated on the seaside, Villa E-1027 located in Roquebrune-Cap-Martin (06), French Riviera involving: investigation, diagnosis, identification of reinforcing steel corrosion root cause, implementation of a repair strategy, pilot test, installation of cathodic protection by impressed current and results.
Key words: reinforced concrete, cathodic protection, preservation.
The construction of a port expansion project in Arabian Gulf for a major operator included the surface based structures such as capping beams and reinforced concrete piles. In 2008 a criticality assessment study was conducted that established the requirement of an impressed current cathodic protection system for all piles included in the structure. The installed ICCP system was commissioned in August 2011 and was remotely monitored by an Aegis Remote Monitoring System (ARMS). The monitoring data showed that all the surface based structures such as capping beams adhered to the requirements of BS EN 12696 with regards to polarization and depolarization. However the reinforced concrete piles showed an initial negative polarization followed by a steady state condition. Thereafter the polarization project requirements were not achieved till 2014. Later in 2014 Penspen was requested by operator and contractor to conduct a diagnostic investigation and review the condition of the ICCP system and the requirement for cathodic protection for the piles. This paper describes the methodology used in the investigation discussion and analysis the results and the key findings.Keywords: Impressed Current Cathodic Protection System (ICCP)Aegis Remote Monitoring System (ARMS)
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This paper is based on a case study of cathodic protection of building foundation piles for several buildings installed on top of a landfill in the San Francisco Bay Area.
This paper discusses options available to rehabilitate, extend the service life and strengthen damaged columns and piles in marine environments.