Technical gazette, Vol. 26 No. 3, 2019.
Original scientific paper
https://doi.org/10.17559/TV-20160205080600
Study on Precise Measurement of Shear Modulus of Polymer Grouting Materials Using Piezoceramic Bender Elements
Jia Li
; Zhengzhou University, Wenhua Road 97#, Zhengzhou, Henan, 450002, China
Bo Wang
; Zhengzhou University, Wenhua Road 97#, Zhengzhou, Henan, 450002, China
Jingwei Zhang
; Zhengzhou University, Wenhua Road 97#, Zhengzhou, Henan, 450002, China
Abstract
In this paper, piezoceramic bender elements technology is first used to test the dynamic shear modulus of polymer grouting materials. The test procedure is designed and the related mould is manufactured. The problems of influencing the precise measuring the transmitting time of shear wave are solved including system delay, excitation signal, frequency and the method of determining the transmitting time. Based on it, the influence on polymer dynamic shear modulus of density and excitation frequency is analyzed, the dynamic elastic modulus and static elastic modulus are contrasted and the relation of polymer grouting materials and dam construction materials is investigated. This study provides basic theoretical reference for dynamic response analysis and engineering application of polymer grouting materials.
Keywords
dynamic property; dynamic shear modulus; piezoceramic bender elements; polymer grouting materials
Hrčak ID:
220978
URI
Publication date:
12.6.2019.
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