Analyzing of Coatings on Steel - Reinforced Concrete Elements by Mobile NMR
Analyzing of Coatings on Steel - Reinforced Concrete Elements by Mobile NMR
复制标题
通过移动 NMR 分析钢筋混凝土构件上的涂层
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
J. Orlowsky
中科院分区：
文献类型：
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作者：
J. Orlowsky
摘要大量基础设施混凝土建筑通过涂层系统来保护其免受侵蚀性环境的侵袭。这些涂层系统的功能性主要受各个聚合物层的组成和厚度的影响。有史以来第一次，移动核磁共振(核磁共振)传感器可以无损地确定建筑工地上的这些重要参数。然而，在将该技术应用于型钢混凝土构件之前，需要研究配筋对测量的潜在影响，即核磁共振信号。结果表明，在计算混凝土保护层厚度时，加固试件的核磁共振谱发生了位移，信号幅度增大，得到了一致的结果。
Abstract A large number of infrastructural concrete buildings are protected against aggressive environments by coating systems. The functionality of these coating systems is mainly affected by the composition and thickness of the individual polymeric layers. For the first time ever, a mobile nuclear magnetic resonance (NMR) sensor allows a non-destructive determination of these important parameters on the building site. However, before this technique can be used on steel-reinforced concrete elements, the potential effect of the reinforcement on the measurement, i.e. the NMR signal, needs to be studied. The results show a shift of the NMR profile as well as an increase of the signals amplitude in the case of the reinforced samples, while calculating the thickness of concrete coating leading to identical results.