Feasibility Study on Internal Defect Monitoring of Concrete Structure Based on Piezoceramics Transducer

Abstract

Abstract: To monitor the change of the internal defect degree and locate the defect position of the concrete structure in service, this paper explored a detection method based on stress waves and carries out experimental research. Piezoceramics transducer (PZT) was installed on the concrete surface in the form of an array, and the concrete was divided into different areas. One sensor in the array emitted waves and the other received waves, and sweep frequency mode and five peak pulse modes were used to monitor different areas of concrete. The test results show that when the stress waves pass through the area to be monitored, due to the existence of internal defects in the concrete, the amplitude value of the stress waves attenuates and the wave energy decreases. In order to quantify the degree of internal defects in concrete structures, the energy index and damage index based on the received signal are constructed and their functional relationships with the degree of defects are established, respectively. According to the difference between the energy index and damage index in different areas, the areas where internal defects exist in concrete are determined. The test results are consistent with the actual situation of the test pieces, which verifies the feasibility of using piezoelectric sensors to monitor the internal defects of concrete in this paper.

Key words: piezoceramics transducer, stress wave, concrete structure monitoring, internal defect, signal energy analysis, time domain analysis

CLC Number:

TU528.07

YANG Juntao, ZUO Wenjian, ZHANG Wenlong, LU Guoyun, JIANG Shan. Feasibility Study on Internal Defect Monitoring of Concrete Structure Based on Piezoceramics Transducer[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(1): 111-122.

References

[1] MEYER C. The greening of the concrete industry[J]. Cement and Concrete Composites, 2009, 31(8): 601-605.
[2] 陈姣姣,蔡新.水工混凝土损伤研究综述[J].混凝土,2016(10):139-142.
CHEN J J, CAI X. Review of concrete damage of hydraulic structure[J]. Concrete, 2016(10): 139-142 (in Chinese).
[3] LEI B, WANG N, XU P, et al. New crack detection method for bridge inspection using UAV incorporating image processing[J]. Journal of aerospace engineering, 2018, 31(5):4018058.1-4018058.13.
[4] SAGAR R V. Acoustic emission characteristics of reinforced concrete beams with varying percentage of tension steel reinforcement under flexural loading[J]. Case Studies in Construction Materials, 2017, 6: 162-176.
[5] LIU Y F, CHO S, SPENCER B, et al. Concrete crack assessment using digital image processing and 3D scene reconstruction[J]. Journal of Computing in Civil Engineering, 2016, 30(1):04014124.
[6] ROBERTS R, CORCORAN K, SCHUTZ A. Insulated concrete form void detection using ground penetrating radar[J]. Structural Faults and Repair Conference, 2010, 17: 1-12.
[7] JANKUŮ M, CIKRLE P, GROŠEK J, et al. Comparison of infrared thermography, ground-penetrating radar and ultrasonic pulse echo for detecting delaminations in concrete bridges[J]. Construction and Building Materials, 2019, 225: 1098-1111.
[8] CASSIDY N J, EDDIES R, DODS S. Void detection beneath reinforced concrete sections: the practical application of ground-penetrating radar and ultrasonic techniques[J]. Journal of Applied Geophysics, 2011, 74(4): 263-276.
[9] 朱珊,周文杰,李晓莹.混凝土健康监测技术综述[J].建筑结构,2022,52(s1):2248-2252.
ZHU S, ZHOU W J, LI X Y. Review of concrete health monitoring technology[J]. Building Structure, 2022, 52(s1): 2248-2252 (in Chinese).
[10] COTIČ P, KOLARIČ D, BOSILJKOV V B, et al. Determination of the applicability and limits of void and delamination detection in concrete structures using infrared thermography[J]. NDT & E International, 2015, 74: 87-93.
[11] XIE J, WU C W, GAO L M, et al. Detection of internal defects in CFRP strengthened steel structures using eddy current pulsed thermography[J]. Construction and Building Materials, 2021, 282: 122642.
[12] 刘红玲,苗剑魁.大型土木结构健康监测系统[J].建筑结构,2013,43(s2):337-340.
LIU H L, MIAO J K. Health monitoring system for large civil structures[J]. Building Structure, 2013, 43(s2): 337-340 (in Chinese).
[13] 孙威,阎石,焦莉,等.基于压电波动法的混凝土裂缝损伤监测技术[J].工程力学,2013,30(s1):206-211.
SUN W, YAN S, JIAO L, et al. Monitoring technology for crack damage of concrete structure based on piezoelectric wave method[J]. Engineering Mechanics, 2013, 30(s1): 206-211 (in Chinese).
[14] LU Y Y, MA H Y, LI Z J. Ultrasonic monitoring of the early-age hydration of mineral admixtures incorporated concrete using cement-based piezoelectric composite sensors[J]. Journal of Intelligent Material Systems and Structures, 2015, 26(3): 280-291.
[15] LI L, XU D Y, HUANG S F, et al. Investigation of piezoelectric composite transducer in ultrasonic monitoring of cement hydration[J]. Advances in Cement Research, 2015, 27(7): 424-432.
[16] ERVIN B L, REIS H. Longitudinal guided waves for monitoring corrosion in reinforced mortar[J]. Measurement Science and Technology, 2008, 19(5): 055702.
[17] HU B, KUNDU T, GRILL W, et al. Embedded piezoelectric sensors for health monitoring of concrete structures[J]. ACI Materials Journal, 2013, 110(2): 149-158.
[18] LIAO W I, WANG J X, SONG G, et al. Structural health monitoring of concrete columns subjected to seismic excitations using piezoceramic-based sensors[J]. Smart Materials and Structures, 2011, 20(12): 125015.
[19] LIU T J, HUANG Y C, ZOU D J, et al. Exploratory study on water seepage monitoring of concrete structures using piezoceramic based smart aggregates[J]. Smart Materials and Structures, 2013, 22(6): 065002.
[20] SONG G B, GU H C, MO Y L. Smart aggregates: multi-functional sensors for concrete structures: a tutorial and a review[J]. Smart Materials and Structures, 2008, 17(3): 033001.
[21] HOU S, ZHANG H B, OU J P. A PZT-based smart aggregate for compressive seismic stress monitoring[J]. Smart Materials and Structures, 2012, 21(10): 105035.
[22] MARKOVIĆ N, NESTOROVIĆ T, STOJIĆ D, et al. Hybrid approach for two dimensional damage localization using piezoelectric smart aggregates[J]. Mechanics Research Communications, 2017, 85: 69-75.
[23] XIONG Y L, ZHANG S Q, CHEN C, et al. Experiments and finite element analysis for detecting the embedded defects in concrete using PZT transducers[J]. Construction and Building Materials, 2021, 292: 123318.
[24] 张浩,李俊杰,康飞.基于压电智能骨料的混凝土梁裂缝损伤监测研究[J].振动与冲击,2021,40(21):215-222.
ZHANG H, LI J J, KANG F. Crack damage monitoring of concrete beam based on piezoelectric intelligent aggregate[J]. Journal of Vibration and Shock, 2021, 40(21): 215-222 (in Chinese).
[25] GAO W H, HUO L S, LI H N, et al. An embedded tubular PZT transducer based damage imaging method for two-dimensional concrete structures[J]. IEEE Access, 2018, 6: 30100-30109.