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

现有基础设施的钢筋腐蚀程度将影响拆除/维修的决定、维修策略，从而影响维修的频率、时间、范围和所需的效率和效果水平。该项目将通过考虑改进的退化模型和安全性和令人满意的性能预测，对现有结构系统进行改进的评估。考虑到澳大利亚的基础设施存量价值超过4000亿美元，其维护涉及相当大的成本，提高基础设施更换或维修策略的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.