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Research on Sleeve Grouting Density Detection Based on the Impact Echo Method

Pu Zhang1, Yingjun Li1, Xinyu Zhu1, Shizhan Xu1, Pinwu Guan1,*, Wei Liu2, Yanwei Guo2, Haibo Wang2

1 School of Civil Engineering, Zhengzhou University, Zhengzhou, 450000, China
2 Xixi Expressway Construction Co., Ltd., Nanyang, 474450, China

* Corresponding Author: Pinwu Guan. Email: email

Structural Durability & Health Monitoring 2024, 18(2), 143-159. https://doi.org/10.32604/sdhm.2024.046986

Abstract

Grouting defects are an inherent challenge in construction practices, exerting a considerable impact on the operational structural integrity of connections. This investigation employed the impact-echo technique for the detection of grouting anomalies within connections, enhancing its precision through the integration of wavelet packet energy principles for damage identification purposes. A series of grouting completeness assessments were meticulously conducted, taking into account variables such as the divergent material properties of the sleeves and the configuration of adjacent reinforcement. The findings revealed that: (i) the energy distribution for the high-strength concrete cohort predominantly occupied the frequency bands 42, 44, 45, and 47, whereas for other groups, it was concentrated within the 37 to 40 frequency band; (ii) the delineation of empty sleeves was effectively discernible by examining the wavelet packet energy ratios across the spectrum of frequencies, albeit distinguishing between sleeves with 50% and full grouting density proved challenging; and (iii) the wavelet packet energy analysis yielded variable detection outcomes contingent on the material attributes of the sleeves, demonstrating heightened sensitivity when applied to ultrahigh-performance concrete matrices and GFRP-reinforced steel bars.

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APA Style
Zhang, P., Li, Y., Zhu, X., Xu, S., Guan, P. et al. (2024). Research on sleeve grouting density detection based on the impact echo method. Structural Durability & Health Monitoring, 18(2), 143-159. https://doi.org/10.32604/sdhm.2024.046986
Vancouver Style
Zhang P, Li Y, Zhu X, Xu S, Guan P, Liu W, et al. Research on sleeve grouting density detection based on the impact echo method. Structural Durability Health Monit . 2024;18(2):143-159 https://doi.org/10.32604/sdhm.2024.046986
IEEE Style
P. Zhang et al., "Research on Sleeve Grouting Density Detection Based on the Impact Echo Method," Structural Durability Health Monit. , vol. 18, no. 2, pp. 143-159. 2024. https://doi.org/10.32604/sdhm.2024.046986



cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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