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A Case Study on Diagnostic Investigation of Cathodic Protection System Requirement and Performance Review for Concrete Piles

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)

Product Number: 51319-13048-SG
Author: Mushaid Nauman
Publication Date: 2019
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