Development of method of evaluation of concrete damage in the process of cyclic freeze-thawing

International Scientific Conference on "Radiation-Thermal Effects and Processes in Inorganic Materials"

材料科学;物理学

Fursa, T.V.^1 ; Demikhova, A.A.^1 ; Surzhikov, A.P.^1

National Research Tomsk Polytechnic University, Tomsk

634050, Russia^1

关键词: Acoustic method;    Attenuation coefficient;    Concrete damages;    Diagnostic criterion;    Electrical response;    Electrical signal;    Freeze-thawing;    Impact excitation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/81/1/012028/pdf
DOI  :  10.1088/1757-899X/81/1/012028

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The research presents a new method for determination of concrete damage under cyclic freezethawing by the parameters of the electrical response under impact excitation. It is established that the attenuation coefficient of the energy of the electrical responses under impact excitation can be used as a diagnostic criterion for crack process determination. A higher accuracy of evaluation of crack processes by the parameters of the electrical signal in comparison with the acoustic method is shown.