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NDT methods for the in-situ evaluation of pavements in the USA - a review

机译：NDT方法在美国对路面进行现场评估-评论

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摘要

In this paper, the non-destructive condition evaluation of both 'flexible' and 'rigid' pavement systems is discussed. The objective is to describe non-destructive test method(s) forthe in-situ, or in-place, evaluation of individual layers within rigid and flexible pavements. Such tests are: the static tests, steady-state dynamic tests, impact response tests, electromagnetic tests, and the wave propagation tests, including the ultrasonic tests, and impact testing. The characteristic that is exploited is the elastic response of materials within individual pavement layers. It is from these responses that properties, such as strength, deformation, load-carrying capacity, and locations of cracks and flaws of the overall pavement system are inferred. This work aims comprehensively at new, old, and rehabilitated pavement systems. In all of these cases, the in-situ properties of layers within the pavement system are of interest; specification compliance determination, material condition monitoring, or rehabilitation effectiveness determination may follow from such knowledge.
机译：本文讨论了“柔性”和“刚性”路面系统的无损状态评估。目的是描述用于就地或就地评估刚性和柔性路面内各个层的非破坏性测试方法。此类测试包括：静态测试，稳态动态测试，冲击响应测试，电磁测试以及包括超声波测试和冲击测试在内的波传播测试。所利用的特征是各个路面层中材料的弹性响应。通过这些响应，可以推断出诸如强度，变形，承载能力以及整个路面系统的裂缝和瑕疵的位置之类的属性。这项工作全面针对新的，旧的和修复的路面系统。在所有这些情况下，路面系统中各层的原位特性都是令人关注的。可以从这些知识中得出规范符合性确定，材料状况监视或恢复有效性确定。

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