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首页> 外文会议>Sensor+Test conference 2009 : Proceedings OPTO 2009 amp; IRS~2 2009 >Application of active thermography to the detection of safety relevant defects in civil engineering structures
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Application of active thermography to the detection of safety relevant defects in civil engineering structures

机译：主动热成像技术在土木工程结构安全相关缺陷检测中的应用

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摘要

During the last ten years, advanced non-destructive testing (NDT) methods like radar, ultrasonic and sonic methods have become available for the assessment of existing structures in civil engineering. These technologies are mainly suited for the detection and characterization of inhomogeneities at depths between 5 and 100 cm. In the near surface region within the first 10 cm, there is still a deficiency of information as many safety relevant cases of damage originate from defects close to the surface. E. g. voids and honeycombing among the top layer of reinforcement in concrete structures, delaminations of CFRP laminates used for subsequent strengthening of concrete and masonry structures, delaminations of protective coating systems as well as surface and subsurface cracks can be characterized with active thermography as will be shown in this contribution.
机译：在过去的十年中，先进的无损检测（NDT）方法（如雷达，超声和声波方法）已经可以用于评估土木工程中的现有结构。这些技术主要适用于检测和表征5至100 cm之间深度的不均匀性。在最初的10厘米以内的近表面区域，仍然缺乏信息，因为许多与安全相关的损坏案例来自靠近表面的缺陷。例如如下面的图所示，可以通过主动热成像技术来表征混凝土结构中顶层的空隙和蜂窝状结构，用于随后加固混凝土和砖石结构的CFRP层压板的分层，保护涂层系统的分层以及表面和地下裂缝的特征。这个贡献。

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