Stormont Wharf, with a maximum quay length of 715m, is the longest deep- water facility in Ireland and provides a critical docking facility for visiting cruise ships.
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Structure
Due to many years of exposure in a hostile marine environment, and the subsequent ingress of chloride ions, the reinforcement was corroding causing steel section loss and spalling of the soffit concrete cover.
The inclusion of 12,000 No CPT PatchguardTM sacrificial zinc anodes at a spacing of 400mm c/c, as an integral part of the concrete repair specification, ensured that sufficient galvanic current will be delivered to the reinforcing bars to maintain steel passivity and deliver long-term protection. PatchGuard anodes are designed to sit within the host concrete at the perimeter of patch repairs rather than the traditional approach of embedding the sacrificial anodes within the repair mortar.
This innovative approach delivers superior protective current to the steel reinforcement most at risk of corrosion.
A proven, durable 20-year solution, which does not require a live power source, was applied without any major disruption to the day to day work at the wharf and, in addition, there is no need for expensive ongoing monitoring.
Patchguard™ Galvanic Anode, the unique corrosion repair solution for patch repairs.
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Stone Restoration of America
Corrosion
PATCHGUARD™ and PATCHGUARD™ CONNECT