Assessment of Air Entrainment in Fresh Cement Paste Using Ultrasonic Nondestructive Testing

2010 ◽  
Vol 7 (1) ◽  
pp. 102452
Author(s):  
S. W. Dean ◽  
Richard M. Kmack ◽  
Kimberly E. Kurtis ◽  
Laurence J. Jacobs ◽  
Jin-Yeon Kim
Keyword(s):  
Nondestructive Testing ◽  
Cement Paste ◽  
Air Entrainment ◽  
Ultrasonic Nondestructive Testing

CHARACTERIZATION OF AIR VOIDS IN FRESH CEMENT PASTE THROUGH ULTRASONIC NONDESTRUCTIVE TESTING

2008 ◽  
Author(s):  
R. M. Kmack ◽  
L. J. Jacobs ◽  
K. E. Kurtis ◽  
J.-Y. Kim ◽  
Donald O. Thompson ◽  
...  
Keyword(s):  
Nondestructive Testing ◽  
Cement Paste ◽  
Ultrasonic Nondestructive Testing ◽  
Air Voids

Graphic Display for Ultrasonic Nondestructive Testing

1972 ◽  
pp. 299-315
Author(s):  
Morio Onoe ◽  
Mikio Takagi ◽  
Taketoshi Masumoto ◽  
Nobuo Hamano
Keyword(s):  
Nondestructive Testing ◽  
Ultrasonic Nondestructive Testing ◽  
Graphic Display

Acousto-Ultrasonic Technology for Nondestructive Evaluation of Concrete Bridge Members Strengthened by Carbon Fiber–Reinforced Polymer

2005 ◽  
Vol 1928 (1) ◽  
pp. 245-251 ◽  
Author(s):  
Mahmut Ekenel ◽  
Nestore Galati ◽  
John J. Myers ◽  
Antonio Nanni ◽  
Valery Godínez
Keyword(s):  
Carbon Fiber ◽  
Nondestructive Testing ◽  
Fiber Reinforced Polymer ◽  
Carbon Fiber Reinforced Polymer ◽  
Ultrasonic Nondestructive Testing ◽  
Fiber Reinforced ◽  
Reinforced Polymer ◽  
Wide Range ◽  
Cfrp Sheet ◽  
Carbon Fiber Reinforced

Carbon fiber–reinforced polymer (CFRP) composites have been used in a wide range of application areas in bridge rehabilitations because these materials are less affected by corrosive environmental conditions, are known to provide longer life, and require less maintenance. However, the quality control and quality assessment of these new rehabilitation systems should be further improved and standardized. A recent rehabilitation project that used CFRP laminates was done on a bridge in Dallas County, Missouri, by the Missouri Department of Transportation and the Center for Infrastructure Engineering Studies at the University of Missouri–Rolla. The acousto-ultrasonic nondestructive testing technology was performed to detect and image surface defects in the form of delaminations. These were intentionally formed at the CFRP sheet–concrete interface to investigate the ability of this technique. Acousto-ultrasonic nondestructive testing has shown the ability to detect and image the delaminations between CFRP sheet and concrete substrate.

The Hardware Design of Ultrasonic Flaw Detector Based on Single-Chip Microcomputer AT89C52

2013 ◽  
Vol 423-426 ◽  
pp. 2427-2430
Author(s):  
Wei Liu ◽  
Zhuo Lin Miao ◽  
Huan Xin Cheng ◽  
Li Cheng
Keyword(s):  
Nondestructive Testing ◽  
Research Work ◽  
Hardware Design ◽  
Flaw Detector ◽  
Ultrasonic Nondestructive Testing ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Main Research ◽  
Ultrasonic Flaw Detector ◽  
Ultrasonic Flaw

Ultrasonic nondestructive testing is an important detection method in nondestructive testing field. It is widely used in steel manufacturing, machinery manufacturing, electronics manufacturing, aerospace and defense and other fields and departments to ensure production quality and safety. In this paper, the main research work and research results are as follows: analyze the principle of electromagnetic ultrasonic nondestructive testing and characteristic and the hardware design of ultrasonic flaw detector system based on single-chip microcomputer AT89C52. This paper laid a good foundation for more in-depth studies in the research of ultrasonic digital signal processing in future.

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