Modelling of Damage Progression and its Effects on the Expected Safety and Satisfactory Performance of Existing Reinforced Concrete Infrastructure

现有基础设施中钢筋锈蚀的程度将影响拆除/维修决定、维修战略，从而影响维修的频率、时间、范围和所需的效率和效力水平。该项目将通过考虑改进的劣化模型和对安全和令人满意的性能的预测，改进对现有结构系统的评价。考虑到澳大利亚基础设施存量的规模超过4000亿美元，而且其维护涉及相当大的成本，基础设施更换或修复战略的更高精确度以及所涉及的风险的潜在经济效益是巨大的。

The extent of reinforcement corrosion in existing infrastructure will influence demolish/repair decisions, maintenance strategies and hence the frequency, timing, extent and required level of efficiency and effectiveness of repairs. The project will provide improved evaluation of existing structural systems by considering improved deterioration modelling and predictions of safety and satisfactory performance. The potential economic benefits of greater precision in infrastructure replacement or repair strategies and of the risks involved are large given that the size of Australia's infrastructure stock is valued at over $400 billion and its maintenance involves considerable costs.