Paper Title:
Ultrasonic Attenuation Changes with Damage Level in Various Sized Concrete Specimens
  Abstract

The attenuation of ultrasonic pulse velocity in various sized concrete specimens under uniaxial compression loading is tested. Tests were conducted on prisms of 25×25×50 cm fabricated with dam concrete(maximum aggregate of 80mm),and standard 15×15×30 cm prisms,10×10×20 cm prisms which were made with the wet-screened components of dam concrete. Ultrasonic attenuation has been shown to increase significantly as distributed damage in concrete increases. Large changes in attenuation with increasing damage levels were found for all specimens at all power levels. Results also show that the rule of ultrasonic propagation in concrete is apparently affected by the scale effect and the effect of wet screen sieve of aggregate. These conclusions proposed can be applied to determining the extent of damage of mass concrete due to the complex load and other environmental effects.

  Info
Periodical
Advanced Materials Research (Volumes 243-249)
Edited by
Chaohe Chen, Yong Huang and Guangfan Li
Pages
5335-5338
DOI
10.4028/www.scientific.net/AMR.243-249.5335
Citation
H. L. Wang, "Ultrasonic Attenuation Changes with Damage Level in Various Sized Concrete Specimens", Advanced Materials Research, Vols. 243-249, pp. 5335-5338, 2011
Online since
May 2011
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Price
$32.00
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