Non-destructive strength characterization of concrete using surface waves
Non-destructive strength characterization of concrete using surface waves
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DOI：
10.1016/s0963-8695(99)00028-6
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发表时间：
2000-01-01
影响因子：
4.2
通讯作者：
Stawiski, B
中科院分区：
文献类型：
--
作者：
Gudra, T;Stawiski, B
本文介绍了利用超声波探头对混凝土进行无损强度表征和测量表面波速的方法。探头的工作频率为40和100千赫，并配有指数型波导，其末端的表面约为1毫米(2)。通过分析垂直面与被检面倾角的影响以及表面不规则性对超声波传播的影响，揭示了该探头的短路特性。文中介绍了实验室检测结果，并举例说明了该测量方法在实际中的应用。实践证明，该方法具有许多优点，在工程实践中具有很大的实用价值。(C)1999爱思唯尔科学有限公司。保留所有权利。
The paper presents a description of non-destructive strength characterization of concrete, using ultrasonic probes, and of measuring surface wave velocity. Probes work at frequencies of 40 and 100 kHz, and they are equipped with an exponential waveguide, the end of which has a surface of ca. 1 mm(2). A short characteristic of this type of probe is shown with an analysis of the influence of the inclination angle between the vertical and the examined surface as well as the influence of surface irregularities on ultrasonic wave propagation. The results of laboratory examination are described and examples of application of this measurement method in practice are given. It has been proved that this method has a number of advantages that are very useful in engineering practice. (C) 1999 Elsevier Science Ltd. All rights reserved.