Concrete Connections - Winter 2019

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Project Overview - Infrastructure Upgrades HMAS Coonawarra Wharf Remediation The works will ensure the ongoing capability of accommodating Australia’s fleet of Armidale-class patrol boats well into the future. HMAS Coonawarra is a Royal Australian Navy (RAN) base located in Darwin, Northern Territory, and is home to 12 fleet units of the RAN. The project included structural steel and concrete jacketed pile repairs, marine and lead paint removal as well as the fabrication of new staircases. Highlights of the works included:

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Wharves remained operational throughout the project

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Working around live Defence training and refuelling operations

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Working with the challenges of Darwin’s 8m tides

Flexibility required to change work stages based on Defence requirements at short notice Environmentally critical project with no solid waste of any kind to be deposited into the harbour

Continual monitoring of air and water quality to ensure blast and paint operations had no negative impact on base operations and the health of base personnel

Photo: Work platform around concrete piles to complete crack and spalling repairs

www.duratecaustralia.com.au

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