Ultrasonic Propagation Characteristics and Damage Evolution of Recycled Concrete under Dynamic Loading

Abstract:

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Four types of recycled concrete specimens were made for dynamic loading tests in laboratory, in order to research the ultrasonic propagation characteristics and damage evolution of recycled concrete under dynamic loading. Ultrasonic propagation parameters such as ultrasonic propagation wave time, ultrasonic velocity and ultrasonic amplitude of recycled concrete were tested synchronously while recycled concrete were loaded. Tests results show that ultrasonic propagation wave time increased with the rise of cyclic times, while ultrasonic amplitude decreased in the same time. Damage variable evolution of recycled concrete lived through obvious three stages during the loading process. The development of inner cracks of recycled concrete in loading process accordingly were the stage of the growing of original cracks, the stage of the expansion of cracks and the stage of the linkage of cracks.

Info:

Periodical:

Advanced Materials Research (Volumes 163-167)

Edited by:

Lijuan Li

Pages:

956-960

DOI:

10.4028/www.scientific.net/AMR.163-167.956

Citation:

X. W. Luo and H. L. Yao, "Ultrasonic Propagation Characteristics and Damage Evolution of Recycled Concrete under Dynamic Loading", Advanced Materials Research, Vols. 163-167, pp. 956-960, 2011

Online since:

December 2010

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Price:

$35.00

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