Ultrasound monitoring for evaluation of damage in reinforced concrete

被引：28
作者：
Rucka, M. [1 ]
Wilde, K. [1 ]
机构：
[1] Gdansk Univ Technol, Fac Civil & Environm Engn, Dept Struct Mech, PL-80233 Gdansk, Poland
来源：
BULLETIN OF THE POLISH ACADEMY OF SCIENCES-TECHNICAL SCIENCES | 2015年 / 63卷 / 01期
关键词：
concrete; degradation; micro-cracking; non-destructive evaluation; ultrasonic waves; INFRARED THERMOGRAPHY;
D O I：
10.1515/bpasts-2015-0008
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The paper deals with automated monitoring of damage evolution in concrete elements subjected to three-point bending tests. The monitoring is based on the nonlinear interactions of traveling ultrasonic waves with micro-crack zones inside the concrete specimens and surface-breaking cracks. The developed procedure assumes semi-continuous ultrasonic testing during the element full loading cycle and generation of the power spectral density maps for the on-line assessment of the degradation process. Two damage indicators are introduced to evaluate micro- and macro-damage. The preliminary experimental results show that the proposed automated monitoring system provides an effective method for the evaluation of progressive damage in concrete.
引用
收藏
页码：65 / 75
页数：11
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