Ultrasonic nondestructive characterization of mortars by the width of the resonances

7th Maghreb Days of Material Sciences

Bita, H.^1 ; Faiz, B.^1 ; Moudden, A.^1 ; Lotfi, H.^1 ; Ouacha, El H.^1

Laboratory of Metrology and Information Processing, Ibn Zohr University, Faculty of Sciences, Agadir, Morocco^1

关键词: Back-scattered;    Cementitious materials;    Different sizes;    Linear correlation;    Nondestructive characterization;    Three solutions;    Ultrasonic parameters;    Ultrasound waves;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/186/1/012027/pdf
DOI  :  10.1088/1757-899X/186/1/012027

来源: IOP

【 摘 要 】

In this work, we study the width of the resonances of the ultrasound waves reflection coefficient backscattered by a plane structure of the mortar. We establish the relationship between this width with two parameters which are widely used in non-destructive characterization of cementitious materials namely the velocity and attenuation. Monitoring the hydration of three solutions of mortars produced with different sizes of sand grains shows that the experimental results confirmed the theoretical predictions. Linear correlations are established between the width of resonance and the two ultrasonic parameters.