On the evaluation of interface quality in concrete repair system by means of impact-echo signal analysis

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• 作者：Andrzej Garbacz^a ; ^{a.garbacz@il.pw.edu.pl} ; Tomasz Piotrowski^a ; Luc Courard^b ; Lesław Kwaśniewski^c
• 关键词：Concrete repair ; Adhesion ; Concrete substrate quality ; Nondestructive testing ; Frequency spectrum ; Wavelet analysis
• 刊名：Construction and Building Materials
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：134
• 期：Complete
• 页码：311-323
• 全文大小：3865 K
• 卷排序：134

文摘

Concrete substrate roughness and microcracking influence stress wave propagation. No relation between bond strength and amplitudes of frequency peaks in IE spectrum. Proposed FE model is useful for simulation of stress wave propagation in repair systems with different interface quality. Bond strength estimation with IE needs advanced signal analysis e.g. wavelet analysis.