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1035 views
05:37 Jul-04-2002

Tina Wilhelm

Engineering, Research Assistant
Institute for Concrete Structures,
Germany,
Joined Oct 2001
1
ultrasonic attenuation in concrete

What kind of pulse signal and analysis makes most sense for measurements of ultrasonic attenuation in concrete in the the case of longitudinal waves and ultrasonic transmission?
Who made som experience with different results for different signals and their analysis?



 
07:29 Jul-05-2002

Christian Grosse

Teacher,
Technische Universität München,
Germany,
Joined Nov 2000
11
Re: ultrasonic attenuation in concrete : What kind of pulse signal and analysis makes most sense for measurements of ultrasonic attenuation in concrete in the the case of longitudinal waves and ultrasonic transmission?
: Who made som experience with different results for different signals and their analysis?
:
.
Dear Mrs. Wilhelm, there are numerous papers about that issue as well as some measurements from different authors, e.g.:
Berthelot, J.M.; Ben Souda, M.;Robert, J.L.: "Study of wave attenuation in concrete", J. Mater. Res. 8, 1993, Nr.9, S. 2344-2353
Landis, E.N., Sha, S.P.: " Frequency-based dependent stress wave attenuation in cement based materials", J. Eng. Mech., 121, 1995, S.737-743

More recent measurements are from Koeppel (ETH, Zuerich) and Nahrath (RWTH Aachen).
Some own results I can send you directly and not through this board.
Regards, Christian



 


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