Electro-mechanical impedance technique for concrete strength monitoring: Three-dimensional model development and experimental verification

被引：7

作者：

Ma, Yongli ^{[1
]}

Meng, Xiaoyu ^{[2
]}

Yao, Chi ^{[1
]}

Zhang, Xiaobo ^{[1
]}

Dong, Wanjing ^{[3
]}

Jiang, Qinghui ^{[4
]}

机构：

[1] Nanchang Univ, Sch Civil Engn & Architecture, Nanchang 330031, Peoples R China

[2] China Univ Petr East China, Coll Pipeline & Civil Engn, Qingdao 266580, Peoples R China

[3] Huazhong Agr Univ, Coll Engn, Wuhan 430070, Peoples R China

[4] Wuhan Univ, Sch Civil Engn, Wuhan 430072, Peoples R China

来源：

MEASUREMENT | 2023年 / 222卷

基金：

中国博士后科学基金;

关键词：

Electro-mechanical impedance; Three-dimensional model; Hydration process; Concrete strength; PZT; COMPRESSIVE STRENGTH; HYDRATION; CEMENT; PREDICTION; TRANSDUCERS; SENSOR; GAIN;

D O I：

10.1016/j.measurement.2023.113558

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

During the application of the electro-mechanical impedance (EMI) technique for detecting the strength devel-opment of concrete, in some cases, the piezoelectric sensor is embedded in the concrete. Normally, there are two methods to embed the piezoelectric sensor: PS-EMI and CPS-EMI. For both methods, the observed resonance frequency of the piezoelectric sensor increases with the increase of the concrete strength. However, there is a contradiction in the trend of conductance amplitude at the resonance frequency, which has to an extent puzzled the researchers in this area. In this paper, we developed a three-dimensional EMI model for the embedded piezoelectric sensor. We discussed the underlying mechanism, which induces the conductance spectrum differ-ence for the PS-EMI and CPS-EMI, and experimental verification was carried out. By plotting the evolution of the concrete strength as a function of the resonance frequency shift, it was found that both embedding methods can be used in practical applications.

引用

页数：8