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评估和预测受ISR影响的关键基础设施:最先进的技术和挑战
Ana Bergmann1, Rennan Medeiros1, Leandro Sanchez1
1Department of Civil Engineering, Faculty of Engineering, University of Ottawa, Ottawa, ON K1N 6N5, Canada.
Materials (Basel, Switzerland)
|January 11, 2024
概括
内部胀反应 (ISR) 是关键的混凝土损伤. 本研究分析了ISR评估和预测方法,提出了改善基础设施维护诊断和预测的框架.
科学领域:
- 土木和结构工程 土木和结构工程.
- 材料科学 材料科学 材料科学
- 地质技术工程 地质技术工程
背景情况:
- 内部膨胀反应 (ISR) 对全球基础设施的耐用性构成重大威胁.
- 现有的研究主要侧重于预防,在ISR影响结构的早期诊断和预后方法方面存在差距.
研究的目的:
- 在混凝土结构中对ISR损害评估和预测技术进行文献计量分析.
- 确定ISR受影响的基础设施的不断发展的诊断和预后方法.
主要方法:
- 关于ISRs的科学文献的图书统计分析.
- 检查诊断技术,包括混凝土石刻,非破坏性测试 (NDT),刚性损伤测试 (SDT) 和损伤评级指数 (DRI).
- 鉴定预后参数,如残留膨胀和孔隙溶液分析.
主要成果:
- 诊断方法的明显演变,从传统技术转向包含SDT和DRI的多层次评估.
- 剩余扩张和孔隙溶液分析被确定为预后的关键输入.
- 该研究强调了对受ISR影响的基础设施进行结构化管理框架的需要.
结论:
- 这些发现支持转向更全面的,多层次的ISR诊断评估策略.
- 整合剩余膨胀和孔隙溶液数据可以显著提高ISR预后.
- 拟议的管理框架旨在优化ISR受影响结构的长期健康和维护.
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