Assessing sensitivity of impact echo and ultrasonic surface waves methods for nondestructive evaluation of concrete structures

2014 ◽  
Vol 71 ◽  
pp. 384-391 ◽  
Author(s):  
Hoda Azari ◽  
Soheil Nazarian ◽  
Deren Yuan
Keyword(s):  
Nondestructive Evaluation ◽  
Surface Waves ◽  
Concrete Structures ◽  
Impact Echo ◽  
Ultrasonic Surface Waves ◽  
Assessing Sensitivity

Impact-Echo Based Nondestructive Evaluation of Grout Condition in Post-Tensioned Bridge Ducts

2010 ◽  
Vol 168-170 ◽  
pp. 1122-1125
Author(s):  
Zhi Feng Wang ◽  
Xian Yan Zhou
Keyword(s):  
Quality Control ◽  
Cost Effectiveness ◽  
Nondestructive Evaluation ◽  
Civil Engineering ◽  
Critical Role ◽  
Concrete Structures ◽  
Impact Echo ◽  
Interdisciplinary Field ◽  
Post Tensioned

The field of Nondestructive Evaluation (NDE) is a very broad, interdisciplinary field that plays a critical role in civil engineering for controlling new structures (quality control) as well as for assessing the internal grout condition of prestressed pipes in post-tensioned concrete structures. Because it allows voids in grouted tendon ducts to be inspected and measured without damaging them, impact-echo based NDE provides an excellent balance between quality control and cost-effectiveness. This paper focuses on the nondestructive evaluation of internal injection quality in post-tensioned bridge ducts, and the developments in civil engineering NDE in China are also introduced.

Asymmetric Light Diffraction from Nonsinusoidal Ultrasonic Surface Waves

1971 ◽  
Vol 42 (10) ◽  
pp. 3670-3673 ◽  
Author(s):  
Thomas H. Neighbors ◽  
Walter G. Mayer
Keyword(s):  
Surface Waves ◽  
Light Diffraction ◽  
Ultrasonic Surface Waves

Characterization of Surfaces and Coatings Using Laser-Generated Ultrasonic Surface Waves

1996 ◽  
pp. 585-592 ◽  
Author(s):  
A. Abbate ◽  
S. C. Schroeder ◽  
B. E. Knight ◽  
F. Yee ◽  
J. Frankel ◽  
...  
Keyword(s):  
Surface Waves ◽  
Ultrasonic Surface Waves
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