Damage Evolution of Reactive Powder Concrete by Low Velocity Impact

Abstract:

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By means of the three-point bending impact equipment, with the measurement of ultrasonic velocity, the low velocity impact damage evolution of reactive powder concrete (RPC) with 0, 1%, 2% and 3% volume fraction of steel fiber were tested. In this study, the damage variable D pertaining to ultrasonic velocity had been selected to study the damage evolution process of RPC. The results indicate that the fatigue damage process of RPC is linear. The addition of fibers effectively improves the impact energy absorption behavior of RPC matrix, and the damage variable D of RPC with different fiber dosages increases by 1.1~3.5 times than that of plain concrete when it is ultimately destroyed.

Info:

Periodical:

Edited by:

Hui Wu, Xiao-Qian Qian, Chong-zhi Li and Fei Li

Pages:

252-256

DOI:

10.4028/www.scientific.net/KEM.477.252

Citation:

Q. X. Zhao et al., "Damage Evolution of Reactive Powder Concrete by Low Velocity Impact", Key Engineering Materials, Vol. 477, pp. 252-256, 2011

Online since:

April 2011

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Price:

$35.00

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