重复使用混凝土的现场文档NDT方法的评估:实验室研究
Serkan Karatosun1, Thomas Ingeman-Nielsen1, Lisbeth M Ottosen1
1Department of Environment and Resource Technology, DTU Sustain, Technical University of Denmark, Brovej, Building 118, 2800 Lyngby, Denmark.
Materials (Basel, Switzerland)
|June 13, 2025
概括
这项研究表明,结合超声波脉冲速度 (UPV),反弹 (RH) 和电阻 (ER) 等非破坏性测试 (NDT) 方法,可以可靠地记录结构元件重复使用的混凝土性能,减少对环境的影响.
科学领域:
- 土木工程 土木工程是指土木工程.
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
背景情况:
- 混凝土生产通过原材料消耗和二氧化碳排放对环境产生重大影响.
- 重复使用结构混凝土元素提供了一个可持续的解决方案,通过减少对新材料生产的需求.
- 目前的方法缺乏可靠的现场文档,以确保安全和可扩展的混凝土再利用.
研究的目的:
- 调查结合非破坏性测试 (NDT) 方法的潜力,以记录重复使用的混凝土性能.
- 评估诸如和度和聚合类型等参数对重复使用的NDT评估的影响.
- 开发用于结构混凝土元素的实际现场文档程序.
主要方法:
- 使用了超声波脉冲速度 (UPV),反弹 (RH) 和电阻 (ER) 方法的组合.
- 在120个圆柱体样本上评估了压力强度和化物迁移系数的NDT文档.
- 系统评估参数,包括和水平,聚合物类型和聚合物大小.
主要成果:
- 结合的NDT方法证明了混凝土性能可靠和实用的文档.
- 确定并评估了影响重复使用场景的NDT评估的关键参数.
- 讨论了在捐赠建筑物中的实验数据,以便在现场应用.
结论:
- 研究的NDT方法可以有效地记录重复使用的混凝土特性.
- 这种方法解决了对现场记录程序的关键需求.
- 允许更安全,更可扩展的结构混凝土元素的再利用,促进可持续性.
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