A correlation method for determining the propagation velocity of an acoustic wave in large-size compact concrete articles

The resonance and impact echo methods for testing compact large-size concrete building constructions can be used only at a known value of the correlation coefficient of the velocity of longitudinal vibrations in a particular compact article. This can be done using the technique of numerical simulation of acoustic fields. A new correlation method for determining the velocity in a compact article with known dimensions is described. It allows monitoring of the strength of arbitrarily shaped large-size concrete building constructions.