- Title
- A study of reinforced concrete piles from the Hornibrook Highway Bridge (1935-2011)
- Creator
- Pape, T. M.; Melchers, R. E.
- Relation
- Annual Conference of the Australasian Corrosion Association 2013. Annual Conference of the Australasian Corrosion Association 2013: Corrosion and Prevention 2013 (Brisbane, Qld 10-13 November, 2013)
- Publisher
- Australasian Corrosion Association (ACA)
- Resource Type
- conference paper
- Date
- 2013
- Description
- The Hornibrook Highway Bridge was a 2684m long timber and concrete bridge spanning across Bramble Bay north of Brisbane, Queensland. Completed in 1935, it was the longest road viaduct across water in Australia at the time. It was demolished in 2011 after 76 years of service due to substantial timber degradation and the deterioration of the concrete due to corrosion. A number of piles were salvaged from demolition and studied by the University of Newcastle. This paper outlines some of the findings from this investigation. The piles and reinforcing bars were in relatively good condition with minimal cross-sectional area losses despite the age of the bridge and exposure to an aggressive marine environment. An exception was the severe corrosion of a bar in one pile with no obvious external visual evidence. A summary of petrographic and XRD analyses, and carbonation profiles are also presented and discussed.
- Subject
- concrete piles; concrete bridges; reinforcing bars
- Identifier
- http://hdl.handle.net/1959.13/1317685
- Identifier
- uon:23474
- Identifier
- ISBN:9781634394369
- Language
- eng
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