ACOUSTIC
EMISSION & NDT SCIENTIFIC PUBLICATIONS
Determination of Concrete Strength and Water to Cement Ratio
by Using Pattern Recognition Techniques on Acousto-Ultrasonic
Signals
Proceedings 8th ECNDT, Madrid, Spain
D.
Aggelis, T. P. Philippidis, D. Polyzos, A. Anastasopoulos, A.
Tsimogiannis
A novel Non-Destructive Technique (NDT)
for characterization of mortar and concrete is presented. It is
based on an Acousto-Ultrasonic (AU) set-up while the analysis of the
acquired waveforms after wave propagation through specimen thickness
is performed by advanced pattern recognition techniques and a cross-correlation
scheme in order to determine water to cement (w/c) ratio. Results
indicate that w/c is evaluated with high resolution. In addition to
that, AU characteristics exhibit strong correlation with strength.