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Suggestion for Concrete Strength Grade Using Ultrasonic Velocity for Tunnel Lining Concrete
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 Title & Authors
Suggestion for Concrete Strength Grade Using Ultrasonic Velocity for Tunnel Lining Concrete
Kang, Su-Tae; Lee, Bang-Yeon; Kwon, Seung-Jun;
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 Abstract
This study implicates a quality evaluation technique for lining concrete using the ultra-sonic technique and proposed a classification for quality evaluation. From the comparison of test results, an improved result comparable to the results by destructive test can be obtained by using averaged transmission velocity of velocities obtained at pure space and central space between two sensors of ultrasonic tester. It is also shown that strength evaluation by ultra-sonic method is not reliable and an evaluation according to the transmission velocities can be improved method for the strength evaluation of concrete.
 Keywords
Tunnel lining concrete;Ultra-sonic velocity method;Quality evaluation;Field test;
 Language
Korean
 Cited by
 References
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