Park Square Multi-Storey Car Park (2008-2009)
Park Square multi-storey car park is situated in Newport, South Wales constructed as a 3-stacks (A, B and C) each of 7no-split level parking decks managed by Newport City Council. Following an extensive condition survey undertaken by Structural Healthcare Limited for Stirling Maynard consulting engineers a corrosion management system (CMS) was developed.
In 2008, C-Probe and Mott MacDonald used the survey data to design a suitable corrosion control strategy for each structural element of the car park. C-Probe proceeded to supply specialist materials, test and commission following installation by Volker Laser with the intent to protect the structure for a service life extension of at least 25 years.
Product / System Used
ICCP system with CP20 and CP101 corrosion rate probes and AchillesICP network management system with AiMS online performance management.
Project Details
Areas of elevated chloride contamination and high risk assessed with full deck half-cell potential wheel mapping used ICCP ribbon anode systems within concrete chases for selected decks. Decks with lower risk profiles were protected with galvanic anodes to the repair patches and surface-applied corrosion inhibitors to the deck surfaces before all decks were coated with a waterproof membrane system.
Columns, wing walls and selected beams with surface-applied corrosion inhibitors used to lower risk surfaces where delaying the onset of corrosion was the determining factor.
Each deck was zones in 2 zones (42no in total for monitoring and 26-zones for ICCP control to 10 decks).
Project Impact
Predictive maintenance decisions are easier to make now for the client as all systems installed are monitored for performance of all corrosion mitigation strategies using the Achilles Suite of Structural Healthcare Systems, which can be remotely managed on AiMS. Not only is the physical asset protected, but so is its value to the community it serves.
Awards
ICRI Award of Merit – Low Rise Buildings (2010)