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Reconstruction

NSRI — Gordons Bay

• Reconstruct insitu, the existing column foundations for the sea rescue base to contain the bursting reinforcement.
• The solution was to provide a PFA rich, reinforced concrete sleeve to uphold the structure and prevent further corrosion.
• New galvanised I-beams were needed to carry the failing structure.
• Starter bars were drilled and anchored into the existing mass concrete bases.
• 10mm polysulphide was used between old and new concrete.
• Concrete was shuttered and tremmied to depths of 3.5m below MSL.

Elands Bay — Construction of concrete boatramp and breakwater

Before		After