[1] MEYER C. The greening of the concrete industry[J]. Cement and Concrete Composites, 2009, 31(8): 601-605.
[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] JANKU M, CIKRLE P, GROEK 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.
[10] COTI P, KOLARI 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.
[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] MARKOVIC' N, NESTOROVIC' T, STOJIC' 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.
[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.